diff --git a/3rdparty/c/BUILD.bazel b/3rdparty/c/BUILD.bazel
index c577b7aba3..bba9f707e0 100644
--- a/3rdparty/c/BUILD.bazel
+++ b/3rdparty/c/BUILD.bazel
@@ -2,5 +2,5 @@
 # SPDX-License-Identifier: Apache-2.0
 
 exports_files([
-  "zlib.BUILD"
+    "zlib.BUILD",
 ])
diff --git a/3rdparty/c/zlib.BUILD b/3rdparty/c/zlib.BUILD
index 4f8ca3ec34..3216701c18 100644
--- a/3rdparty/c/zlib.BUILD
+++ b/3rdparty/c/zlib.BUILD
@@ -40,24 +40,24 @@ cc_library(
 # be passed to hazel_repositories.
 
 filegroup(
-  name = "lib",
-  srcs = [":z"],
-  output_group = "dynamic_library",
+    name = "lib",
+    srcs = [":z"],
+    output_group = "dynamic_library",
 )
 
 filegroup(
-  name = "headers",
-  srcs = [
-      "crc32.h",
-      "deflate.h",
-      "gzguts.h",
-      "inffast.h",
-      "inffixed.h",
-      "inflate.h",
-      "inftrees.h",
-      "trees.h",
-      "zconf.h",
-      "zlib.h",
-      "zutil.h",
-  ],
+    name = "headers",
+    srcs = [
+        "crc32.h",
+        "deflate.h",
+        "gzguts.h",
+        "inffast.h",
+        "inffixed.h",
+        "inflate.h",
+        "inftrees.h",
+        "trees.h",
+        "zconf.h",
+        "zlib.h",
+        "zutil.h",
+    ],
 )
diff --git a/3rdparty/haskell/BUILD b/3rdparty/haskell/BUILD
index a566caa022..315382a061 100644
--- a/3rdparty/haskell/BUILD
+++ b/3rdparty/haskell/BUILD
@@ -1,2 +1,5 @@
 # This file is exported so that we can a 'hazel_symlink' in BUILD.network
-exports_files(["network-package.bzl", "c2hs-package.bzl"])
+exports_files([
+    "network-package.bzl",
+    "c2hs-package.bzl",
+])
diff --git a/3rdparty/haskell/ffi_windows/BUILD b/3rdparty/haskell/ffi_windows/BUILD
index bf0823cc1b..ffe30cb0f9 100644
--- a/3rdparty/haskell/ffi_windows/BUILD
+++ b/3rdparty/haskell/ffi_windows/BUILD
@@ -11,6 +11,9 @@
 
 package(default_visibility = ["//visibility:public"])
 
-load("@os_info//:os_info.bzl", is_windows = "is_windows")
+load("@os_info//:os_info.bzl", "is_windows")
 
-alias(name = "ffi", actual = "@io_tweag_rules_haskell_ghc_windows_amd64//:rts-headers") if is_windows else None
+alias(
+    name = "ffi",
+    actual = "@io_tweag_rules_haskell_ghc_windows_amd64//:rts-headers",
+) if is_windows else None
diff --git a/BUILD b/BUILD
index 44bebca2f2..38383e7fd1 100644
--- a/BUILD
+++ b/BUILD
@@ -1,13 +1,14 @@
 package(default_visibility = ["//:__subpackages__"])
 
-load("@io_tweag_rules_haskell//haskell:haskell.bzl",
-  "haskell_toolchain",
+load(
+    "@io_tweag_rules_haskell//haskell:haskell.bzl",
+    "haskell_toolchain",
 )
-load("@io_tweag_rules_haskell//haskell:c2hs.bzl",
-  "c2hs_toolchain",
+load(
+    "@io_tweag_rules_haskell//haskell:c2hs.bzl",
+    "c2hs_toolchain",
 )
-
-load ("//bazel_tools:haskell.bzl", "da_haskell_library")
+load("//bazel_tools:haskell.bzl", "da_haskell_library")
 
 exports_files([".hlint.yaml"])
 
@@ -44,13 +45,15 @@ load(
     "c2hs_toolchain",
 )
 
-
 c2hs_toolchain(
     name = "c2hs-toolchain",
     c2hs = "@c2hs//:bin",
 )
 
-filegroup(name = "node_modules", srcs = glob(["node_modules/**/*"]))
+filegroup(
+    name = "node_modules",
+    srcs = glob(["node_modules/**/*"]),
+)
 
 config_setting(
     name = "ghci_data",
@@ -64,7 +67,13 @@ config_setting(
 #
 
 # The VERSION file is inlined in a few builds.
-exports_files(["NOTICES", "LICENSE", "VERSION", "CHANGELOG", "tsconfig.json"])
+exports_files([
+    "NOTICES",
+    "LICENSE",
+    "VERSION",
+    "CHANGELOG",
+    "tsconfig.json",
+])
 
 # FIXME(#448): We're currently assigning version (100+x).y.z to all components
 # in SDK version x.y.z. As long as x < 10, 10x.y.z == (100+x).y.z.  Since we'll
@@ -82,7 +91,10 @@ genrule(
 
 genrule(
     name = "sdk-version-hs",
-    srcs = ["VERSION", ":component-version"],
+    srcs = [
+        "VERSION",
+        ":component-version",
+    ],
     outs = ["SdkVersion.hs"],
     cmd = """
         SDK_VERSION=$$(cat $(location VERSION))
@@ -105,58 +117,84 @@ da_haskell_library(
 
 genrule(
     name = "git-revision",
-    stamp = True,
     outs = [".git-revision"],
     cmd = """
         grep '^STABLE_GIT_REVISION ' bazel-out/stable-status.txt | cut -d ' ' -f 2 > $@
     """,
+    stamp = True,
 )
 
-
 #
 # Common aliases
 #
 
 alias(
-  name = "damli",
-  actual = "//daml-foundations/daml-tools/da-hs-damli-app:damli"
+    name = "damli",
+    actual = "//daml-foundations/daml-tools/da-hs-damli-app:damli",
 )
 
 alias(
-  name = "damli@ghci",
-  actual = "//daml-foundations/daml-tools/da-hs-damli-app:damli@ghci"
+    name = "damli@ghci",
+    actual = "//daml-foundations/daml-tools/da-hs-damli-app:damli@ghci",
 )
 
 alias(
-  name = "damli-dist",
-  actual = "//daml-foundations/daml-tools/da-hs-damli-app:dist"
+    name = "damli-dist",
+    actual = "//daml-foundations/daml-tools/da-hs-damli-app:dist",
 )
 
 alias(
-  name = "damlc",
-  actual = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app"
+    name = "damlc",
+    actual = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app",
 )
 
 alias(
-  name = "damlc@ghci",
-  actual = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app@ghci"
+    name = "damlc@ghci",
+    actual = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app@ghci",
 )
 
 alias(
-  name = "damlc-dist",
-  actual = "//daml-foundations/daml-tools/da-hs-damlc-app:damlc-dist"
+    name = "damlc-dist",
+    actual = "//daml-foundations/daml-tools/da-hs-damlc-app:damlc-dist",
 )
 
 alias(
-  name = "daml-lf-repl",
-  actual = "//daml-lf/repl:repl"
+    name = "daml-lf-repl",
+    actual = "//daml-lf/repl:repl",
 )
 
 alias(
-  name = "bindings-java",
-  actual = "//language-support/java/bindings:bindings-java"
+    name = "bindings-java",
+    actual = "//language-support/java/bindings:bindings-java",
 )
 
 exports_files([
-  ".scalafmt.conf"
+    ".scalafmt.conf",
 ])
+
+# Buildifier.
+
+load("@com_github_bazelbuild_buildtools//buildifier:def.bzl", "buildifier")
+
+buildifier_excluded_patterns = [
+    "./3rdparty/haskell/c2hs-package.bzl",
+    "./3rdparty/haskell/network-package.bzl",
+    "./3rdparty/jvm/*",
+    "./3rdparty/workspace.bzl",
+    "./hazel/packages.bzl",
+]
+
+# Run this to check if BUILD files are well-formatted.
+buildifier(
+    name = "buildifier",
+    exclude_patterns = buildifier_excluded_patterns,
+    mode = "check",
+)
+
+# Run this to fix the errors in BUILD files.
+buildifier(
+    name = "buildifier-fix",
+    exclude_patterns = buildifier_excluded_patterns,
+    mode = "fix",
+    verbose = True,
+)
diff --git a/WORKSPACE b/WORKSPACE
index f73ea10d53..bf7717f1b5 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -1,37 +1,38 @@
 workspace(name = "com_github_digital_asset_daml")
 
 load("//:deps.bzl", "daml_deps")
+
 daml_deps()
 
 load("@io_tweag_rules_haskell//haskell:repositories.bzl", "haskell_repositories")
+
 haskell_repositories()
+
 register_toolchains(
-  "//:c2hs-toolchain"
+    "//:c2hs-toolchain",
 )
 
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
 load("//bazel_tools/dev_env_package:dev_env_package.bzl", "dev_env_package")
 load("//bazel_tools/dev_env_package:dev_env_tool.bzl", "dev_env_tool")
-
 load(
-  "@io_tweag_rules_nixpkgs//nixpkgs:nixpkgs.bzl",
-  "nixpkgs_local_repository", "nixpkgs_package", "nixpkgs_cc_configure",
+    "@io_tweag_rules_nixpkgs//nixpkgs:nixpkgs.bzl",
+    "nixpkgs_cc_configure",
+    "nixpkgs_local_repository",
+    "nixpkgs_package",
 )
-
 load("//bazel_tools:os_info.bzl", "os_info")
 
 os_info(name = "os_info")
 
 load("@os_info//:os_info.bzl", "is_linux", "is_windows")
 
-
 nixpkgs_local_repository(
     name = "nixpkgs",
     nix_file = "//nix:nixpkgs.nix",
     nix_file_deps = [
-      "//nix:nixpkgs/nixos-18.09/default.nix",
-      "//nix:nixpkgs/nixos-18.09/default.src.json",
+        "//nix:nixpkgs/nixos-18.09/default.nix",
+        "//nix:nixpkgs/nixos-18.09/default.src.json",
     ],
 )
 
@@ -63,16 +64,16 @@ common_nix_file_deps = [
 # Use Nix provisioned cc toolchain
 nixpkgs_cc_configure(
     nix_file = "//nix:bazel-cc-toolchain.nix",
-    repositories = dev_env_nix_repos,
     nix_file_deps = common_nix_file_deps + [
         "//nix:bazel-cc-toolchain.nix",
     ],
+    repositories = dev_env_nix_repos,
 )
 
 # Curl system dependency
 nixpkgs_package(
-    name = 'curl_nix',
-    attribute_path = 'curl',
+    name = "curl_nix",
+    attribute_path = "curl",
     nix_file = "//nix:bazel.nix",
     nix_file_deps = common_nix_file_deps,
     repositories = dev_env_nix_repos,
@@ -80,8 +81,8 @@ nixpkgs_package(
 
 # Patchelf system dependency
 nixpkgs_package(
-    name = 'patchelf_nix',
-    attribute_path = 'patchelf',
+    name = "patchelf_nix",
+    attribute_path = "patchelf",
     nix_file = "//nix:bazel.nix",
     nix_file_deps = common_nix_file_deps,
     repositories = dev_env_nix_repos,
@@ -89,53 +90,56 @@ nixpkgs_package(
 
 # Tar & gzip dependency
 nixpkgs_package(
-    name = 'tar_nix',
-    attribute_path = 'gnutar',
+    name = "tar_nix",
+    attribute_path = "gnutar",
+    fail_not_supported = False,
     nix_file = "//nix:bazel.nix",
     nix_file_deps = common_nix_file_deps,
     repositories = dev_env_nix_repos,
-    fail_not_supported = False,
 )
+
 dev_env_tool(
-  name = "tar_dev_env",
-  tool = "tar",
-  win_tool = "msys2-20180531",
-  win_include = ["usr/bin/tar.exe"],
-  win_path = "usr/bin/tar.exe",
-  nix_label = "@tar_nix",
-  nix_include = ["bin/tar"],
-  nix_path = "bin/tar",
+    name = "tar_dev_env",
+    nix_include = ["bin/tar"],
+    nix_label = "@tar_nix",
+    nix_path = "bin/tar",
+    tool = "tar",
+    win_include = ["usr/bin/tar.exe"],
+    win_path = "usr/bin/tar.exe",
+    win_tool = "msys2-20180531",
 )
 
 nixpkgs_package(
-    name = 'gzip_nix',
-    attribute_path = 'gzip',
+    name = "gzip_nix",
+    attribute_path = "gzip",
+    fail_not_supported = False,
     nix_file = "//nix:bazel.nix",
     nix_file_deps = common_nix_file_deps,
     repositories = dev_env_nix_repos,
-    fail_not_supported = False,
 )
+
 dev_env_tool(
-  name = "gzip_dev_env",
-  tool = "gzip",
-  win_tool = "msys2-20180531",
-  win_include = ["usr/bin/gzip.exe"],
-  win_path = "usr/bin/gzip.exe",
-  nix_label = "@gzip_nix",
-  nix_include = ["bin/gzip"],
-  nix_path = "bin/gzip",
+    name = "gzip_dev_env",
+    nix_include = ["bin/gzip"],
+    nix_label = "@gzip_nix",
+    nix_path = "bin/gzip",
+    tool = "gzip",
+    win_include = ["usr/bin/gzip.exe"],
+    win_path = "usr/bin/gzip.exe",
+    win_tool = "msys2-20180531",
 )
 
 nixpkgs_package(
-    name = 'awk_nix',
-    attribute_path = 'gawk',
+    name = "awk_nix",
+    attribute_path = "gawk",
     nix_file = "//nix:bazel.nix",
     nix_file_deps = common_nix_file_deps,
     repositories = dev_env_nix_repos,
 )
+
 nixpkgs_package(
-    name = 'hlint_nix',
-    attribute_path = 'hlint',
+    name = "hlint_nix",
+    attribute_path = "hlint",
     nix_file = "//nix:bazel.nix",
     nix_file_deps = common_nix_file_deps + [
         "//nix:overrides/hlint-2.1.15.nix",
@@ -145,40 +149,30 @@ nixpkgs_package(
 )
 
 nixpkgs_package(
-    name = 'zip_nix',
-    attribute_path = 'zip',
+    name = "zip_nix",
+    attribute_path = "zip",
+    fail_not_supported = False,
     nix_file = "//nix:bazel.nix",
     nix_file_deps = common_nix_file_deps,
     repositories = dev_env_nix_repos,
-    fail_not_supported = False,
 )
 
 dev_env_tool(
-  name = "zip_dev_env",
-  tool = "zip",
-  win_tool = "msys2-20180531",
-  win_include = ["usr/bin/zip.exe"],
-  win_path = "usr/bin/zip.exe",
-  nix_label = "@zip_nix",
-  nix_include = ["bin/zip"],
-  nix_path = "bin/zip",
+    name = "zip_dev_env",
+    nix_include = ["bin/zip"],
+    nix_label = "@zip_nix",
+    nix_path = "bin/zip",
+    tool = "zip",
+    win_include = ["usr/bin/zip.exe"],
+    win_path = "usr/bin/zip.exe",
+    win_tool = "msys2-20180531",
 )
 
 # c2hs
 nixpkgs_package(
-  name = "c2hs",
-  repositories = dev_env_nix_repos,
-  attribute_path = "ghcWithC2hs",
-  nix_file = "//nix:bazel.nix",
-  nix_file_deps = common_nix_file_deps + [
-    "//nix:ghc.nix",
-    "//nix:with-packages-wrapper.nix",
-    "//nix:overrides/ghc-8.6.4.nix",
-    "//nix:overrides/c2hs-0.28.6.nix",
-    "//nix:overrides/ghc-8.6.3-binary.nix",
-    "//nix:overrides/language-c-0.8.2.nix",
-  ],
-  build_file_content = '''
+    name = "c2hs",
+    attribute_path = "ghcWithC2hs",
+    build_file_content = '''
 
 package(default_visibility = [ "//visibility:public" ])
 
@@ -186,7 +180,17 @@ filegroup(
     name = "bin",
     srcs = ["bin/c2hs"],
 )
-  '''
+  ''',
+    nix_file = "//nix:bazel.nix",
+    nix_file_deps = common_nix_file_deps + [
+        "//nix:ghc.nix",
+        "//nix:with-packages-wrapper.nix",
+        "//nix:overrides/ghc-8.6.4.nix",
+        "//nix:overrides/c2hs-0.28.6.nix",
+        "//nix:overrides/ghc-8.6.3-binary.nix",
+        "//nix:overrides/language-c-0.8.2.nix",
+    ],
+    repositories = dev_env_nix_repos,
 )
 
 load(
@@ -212,31 +216,37 @@ filegroup(
 
 # Used by Darwin and Linux
 haskell_register_ghc_nixpkgs(
-  version = "8.6.4",
-  build_file = "@io_tweag_rules_haskell//haskell:ghc.BUILD",
-  attribute_path = "ghcWithC2hs",
-  nix_file = "//nix:bazel.nix",
-  nix_file_deps = common_nix_file_deps + [
-    "//nix:ghc.nix",
-    "//nix:with-packages-wrapper.nix",
-    "//nix:overrides/ghc-8.6.4.nix",
-    "//nix:overrides/c2hs-0.28.6.nix",
-    "//nix:overrides/ghc-8.6.3-binary.nix",
-    "//nix:overrides/language-c-0.8.2.nix",
-  ],
-  locale_archive = "@glibc_locales//:locale-archive",
-  repositories = dev_env_nix_repos,
+    attribute_path = "ghcWithC2hs",
+    build_file = "@io_tweag_rules_haskell//haskell:ghc.BUILD",
 
-  # -fexternal-dynamic-refs is required so that we produce position-independent
-  # relocations against some functions (-fPIC alone isn’t sufficient).
+    # -fexternal-dynamic-refs is required so that we produce position-independent
+    # relocations against some functions (-fPIC alone isn’t sufficient).
 
-  # -split-sections would allow us to produce significantly smaller binaries, e.g., for damlc,
-  # the binary shrinks from 186MB to 83MB. -split-sections only works on Linux but
-  # we get a similar behavior on Darwin by default.
-  # However, we had to disable split-sections for now as it seems to interact very badly
-  # with the GHCi linker to the point where :main takes several minutes rather than several seconds.
-  compiler_flags = ["-O1", "-fexternal-dynamic-refs"],
-  repl_ghci_args = ["-O0", "-fexternal-interpreter"],
+    # -split-sections would allow us to produce significantly smaller binaries, e.g., for damlc,
+    # the binary shrinks from 186MB to 83MB. -split-sections only works on Linux but
+    # we get a similar behavior on Darwin by default.
+    # However, we had to disable split-sections for now as it seems to interact very badly
+    # with the GHCi linker to the point where :main takes several minutes rather than several seconds.
+    compiler_flags = [
+        "-O1",
+        "-fexternal-dynamic-refs",
+    ],
+    locale_archive = "@glibc_locales//:locale-archive",
+    nix_file = "//nix:bazel.nix",
+    nix_file_deps = common_nix_file_deps + [
+        "//nix:ghc.nix",
+        "//nix:with-packages-wrapper.nix",
+        "//nix:overrides/ghc-8.6.4.nix",
+        "//nix:overrides/c2hs-0.28.6.nix",
+        "//nix:overrides/ghc-8.6.3-binary.nix",
+        "//nix:overrides/language-c-0.8.2.nix",
+    ],
+    repl_ghci_args = [
+        "-O0",
+        "-fexternal-interpreter",
+    ],
+    repositories = dev_env_nix_repos,
+    version = "8.6.4",
 )
 
 # Used by Windows
@@ -245,111 +255,117 @@ haskell_register_ghc_bindists(
 ) if is_windows else None
 
 nixpkgs_package(
-  name = "jq",
-  attribute_path = "jq",
-  nix_file = "//nix:bazel.nix",
-  nix_file_deps = common_nix_file_deps,
-  repositories = dev_env_nix_repos,
+    name = "jq",
+    attribute_path = "jq",
+    nix_file = "//nix:bazel.nix",
+    nix_file_deps = common_nix_file_deps,
+    repositories = dev_env_nix_repos,
 )
 
 #node & npm
 nixpkgs_package(
-  name = "node_nix",
-  attribute_path = "nodejs",
-  nix_file = "//nix:bazel.nix",
-  nix_file_deps = common_nix_file_deps,
-  repositories = dev_env_nix_repos,
-  fail_not_supported = False
+    name = "node_nix",
+    attribute_path = "nodejs",
+    fail_not_supported = False,
+    nix_file = "//nix:bazel.nix",
+    nix_file_deps = common_nix_file_deps,
+    repositories = dev_env_nix_repos,
 )
 
 nixpkgs_package(
-  name = "npm_nix",
-  attribute_path = "nodejs",
-  nix_file = "//nix:bazel.nix",
-  nix_file_deps = common_nix_file_deps,
-  repositories = dev_env_nix_repos,
+    name = "npm_nix",
+    attribute_path = "nodejs",
+    nix_file = "//nix:bazel.nix",
+    nix_file_deps = common_nix_file_deps,
+    repositories = dev_env_nix_repos,
 )
 
 #sass
 nixpkgs_package(
-  name = "sass_nix",
-  attribute_path = "sass",
-  nix_file = "//nix:bazel.nix",
-  nix_file_deps = common_nix_file_deps + [
-    "//nix:overrides/sass/default.nix",
-    "//nix:overrides/sass/gemset.nix",
-  ],
-  repositories = dev_env_nix_repos,
+    name = "sass_nix",
+    attribute_path = "sass",
+    nix_file = "//nix:bazel.nix",
+    nix_file_deps = common_nix_file_deps + [
+        "//nix:overrides/sass/default.nix",
+        "//nix:overrides/sass/gemset.nix",
+    ],
+    repositories = dev_env_nix_repos,
 )
 
 #tex
 nixpkgs_package(
-  name = "texlive_nix",
-  attribute_path = "texlive",
-  nix_file = "//nix:bazel.nix",
-  nix_file_deps = common_nix_file_deps,
-  repositories = dev_env_nix_repos,
+    name = "texlive_nix",
+    attribute_path = "texlive",
+    nix_file = "//nix:bazel.nix",
+    nix_file_deps = common_nix_file_deps,
+    repositories = dev_env_nix_repos,
 )
 
 #sphinx
 nixpkgs_package(
-  name = "sphinx_nix",
-  attribute_path = "sphinx183",
-  nix_file = "//nix:bazel.nix",
-  nix_file_deps = common_nix_file_deps + [
-    "//nix:tools/sphinx183/default.nix",
-  ],
-  repositories = dev_env_nix_repos,
+    name = "sphinx_nix",
+    attribute_path = "sphinx183",
+    nix_file = "//nix:bazel.nix",
+    nix_file_deps = common_nix_file_deps + [
+        "//nix:tools/sphinx183/default.nix",
+    ],
+    repositories = dev_env_nix_repos,
 )
 
 #Imagemagick
 nixpkgs_package(
-  name = "imagemagick_nix",
-  attribute_path = "imagemagick",
-  nix_file = "//nix:bazel.nix",
-  nix_file_deps = common_nix_file_deps,
-  repositories = dev_env_nix_repos,
+    name = "imagemagick_nix",
+    attribute_path = "imagemagick",
+    nix_file = "//nix:bazel.nix",
+    nix_file_deps = common_nix_file_deps,
+    repositories = dev_env_nix_repos,
 )
 
 #Docker
 nixpkgs_package(
-  name = "docker_nix",
-  attribute_path = "docker",
-  nix_file = "//nix:bazel.nix",
-  nix_file_deps = common_nix_file_deps,
-  repositories = dev_env_nix_repos,
+    name = "docker_nix",
+    attribute_path = "docker",
+    nix_file = "//nix:bazel.nix",
+    nix_file_deps = common_nix_file_deps,
+    repositories = dev_env_nix_repos,
 )
 
 #Pandoc
 nixpkgs_package(
-  name = "pandoc_nix",
-  attribute_path = "pandoc",
-  nix_file = "//nix:bazel.nix",
-  nix_file_deps = common_nix_file_deps,
-  repositories = dev_env_nix_repos,
+    name = "pandoc_nix",
+    attribute_path = "pandoc",
+    nix_file = "//nix:bazel.nix",
+    nix_file_deps = common_nix_file_deps,
+    repositories = dev_env_nix_repos,
 )
 
 #Javadoc
 nixpkgs_package(
-  name = "jdk_nix",
-  attribute_path = "jdk8",
-  nix_file = "//nix:bazel.nix",
-  nix_file_deps = common_nix_file_deps,
-  repositories = dev_env_nix_repos,
-  fail_not_supported = False,
+    name = "jdk_nix",
+    attribute_path = "jdk8",
+    fail_not_supported = False,
+    nix_file = "//nix:bazel.nix",
+    nix_file_deps = common_nix_file_deps,
+    repositories = dev_env_nix_repos,
 )
+
 # This will not be needed after merge of the PR to bazel adding proper javadoc filegroups:
 # https://github.com/bazelbuild/bazel/pull/7898
 # `@javadoc_dev_env//:javadoc` could be then replaced with `@local_jdk//:javadoc` and the below removed
 dev_env_tool(
-  name = "javadoc_dev_env",
-  tool = "javadoc",
-  win_tool = "java-openjdk-8u201",
-  win_include = ["bin", "include", "jre", "lib"],
-  win_path = "bin/javadoc.exe",
-  nix_label = "@jdk_nix",
-  nix_include = ["bin/javadoc"],
-  nix_path = "bin/javadoc",
+    name = "javadoc_dev_env",
+    nix_include = ["bin/javadoc"],
+    nix_label = "@jdk_nix",
+    nix_path = "bin/javadoc",
+    tool = "javadoc",
+    win_include = [
+        "bin",
+        "include",
+        "jre",
+        "lib",
+    ],
+    win_path = "bin/javadoc.exe",
+    win_tool = "java-openjdk-8u201",
 )
 
 # Dummy target //external:python_headers.
@@ -360,9 +376,8 @@ bind(
     actual = "@com_google_protobuf//util/python:python_headers",
 )
 
-load("@ai_formation_hazel//:hazel.bzl", "hazel_repositories", "hazel_custom_package_github", "hazel_custom_package_hackage")
+load("@ai_formation_hazel//:hazel.bzl", "hazel_custom_package_github", "hazel_custom_package_hackage", "hazel_repositories")
 load("//hazel:packages.bzl", "core_packages", "packages")
-
 load("//bazel_tools:haskell.bzl", "add_extra_packages")
 
 # XXX: We do not have access to an integer-simple version of GHC on Windows.
@@ -370,126 +385,187 @@ load("//bazel_tools:haskell.bzl", "add_extra_packages")
 use_integer_simple = not is_windows
 
 hazel_repositories(
-  core_packages = core_packages + {
-    "integer-simple": "0.1.1.1",
+    core_packages = core_packages + {
+        "integer-simple": "0.1.1.1",
 
-    # this is a core package, but not reflected in hazel/packages.bzl.
-    "haskeline": "0.7.4.2",
-
-
-    "Win32": "2.6.1.0",
-  },
-  packages = add_extra_packages(
-      pkgs = packages,
-      extra =
-        [ # Read [Working on ghc-lib] for ghc-lib update instructions at
-          # https://github.com/DACH-NY/daml/blob/master/ghc-lib/working-on-ghc-lib.md
-          ("ghc-lib-parser", {"url": "https://digitalassetsdk.bintray.com/ghc-lib/ghc-lib-parser-0.20190411.1.tar.gz", "stripPrefix": "ghc-lib-parser-0.20190411.1", "sha256": "01e7fe236cdea54d51831d4941772214a843e937dac2d22f7e8a6f6339c87deb"})
-        , ("ghc-lib", {"url": "https://digitalassetsdk.bintray.com/ghc-lib/ghc-lib-0.20190411.1.tar.gz", "stripPrefix": "ghc-lib-0.20190411.1", "sha256": "1f99517659417225dfe172628cf3154624cc8ab6fb850953033f628f66b86492"})
-        , ("bytestring-nums", {"version": "0.3.6", "sha256": "bdca97600d91f00bb3c0f654784e3fbd2d62fcf4671820578105487cdf39e7cd"})
-        , ("unix-time", {"version": "0.4.5", "sha256": "fe7805c62ad682589567afeee265e6e230170c3941cdce479a2318d1c5088faf"})
-        , ("zip-archive", {"version": "0.3.3", "sha256": "988adee77c806e0b497929b24d5526ea68bd3297427da0d0b30b99c094efc84d"})
-        , ("js-dgtable", {"version": "0.5.2", "sha256": "e28dd65bee8083b17210134e22e01c6349dc33c3b7bd17705973cd014e9f20ac"})
-        , ("shake", {"version": "0.17.8", "sha256": "ade4162f7540f044f0446981120800076712d1f98d30c5b5344c0f7828ec49a2"})
-        , ("filepattern", {"version": "0.1.1", "sha256": "f7fc5bdcfef0d43a793a3c64e7c0fd3b1d35eea97a37f0e69d6612ab255c9b4b"})
-        , ("terminal-progress-bar", {"version": "0.4.0.1", "sha256": "c5a9720fcbcd9d83f9551e431ee3975c61d7da6432aa687aef0c0e04e59ae277"})
-        ]
-  ),
-  exclude_packages = [
-    "arx",
-    "clock",
-    "c2hs",
-    "streaming-commons",
-    "wai-app-static",
-    "zlib",
-  ] + (["network"] if is_windows else []),
-  extra_flags = {
-    "blaze-textual": { "integer-simple": use_integer_simple },
-    "cryptonite": { "integer-gmp": not use_integer_simple },
-    "hashable": { "integer-gmp": not use_integer_simple },
-    "integer-logarithms": { "integer-gmp": not use_integer_simple},
-    "text": { "integer-simple": use_integer_simple },
-    "scientific": { "integer-simple": use_integer_simple },
-  },
-  extra_libs = {
-    "z": "@com_github_madler_zlib//:z",
-    "ffi": "@com_github_digital_asset_daml//3rdparty/haskell/ffi_windows:ffi" if is_windows else "@libffi_nix//:ffi",
-  },
-  ghc_workspaces = {
-    "k8": "@io_tweag_rules_haskell_ghc-nixpkgs",
-    "darwin": "@io_tweag_rules_haskell_ghc-nixpkgs",
-    # although windows is not quite supported yet
-    "x64_windows": "@io_tweag_rules_haskell_ghc_windows_amd64",
-  },
+        # this is a core package, but not reflected in hazel/packages.bzl.
+        "haskeline": "0.7.4.2",
+        "Win32": "2.6.1.0",
+    },
+    exclude_packages = [
+        "arx",
+        "clock",
+        "c2hs",
+        "streaming-commons",
+        "wai-app-static",
+        "zlib",
+    ] + (["network"] if is_windows else []),
+    extra_flags = {
+        "blaze-textual": {"integer-simple": use_integer_simple},
+        "cryptonite": {"integer-gmp": not use_integer_simple},
+        "hashable": {"integer-gmp": not use_integer_simple},
+        "integer-logarithms": {"integer-gmp": not use_integer_simple},
+        "text": {"integer-simple": use_integer_simple},
+        "scientific": {"integer-simple": use_integer_simple},
+    },
+    extra_libs = {
+        "z": "@com_github_madler_zlib//:z",
+        "ffi": "@com_github_digital_asset_daml//3rdparty/haskell/ffi_windows:ffi" if is_windows else "@libffi_nix//:ffi",
+    },
+    ghc_workspaces = {
+        "k8": "@io_tweag_rules_haskell_ghc-nixpkgs",
+        "darwin": "@io_tweag_rules_haskell_ghc-nixpkgs",
+        # although windows is not quite supported yet
+        "x64_windows": "@io_tweag_rules_haskell_ghc_windows_amd64",
+    },
+    packages = add_extra_packages(
+        extra =
+            [
+                # Read [Working on ghc-lib] for ghc-lib update instructions at
+                # https://github.com/DACH-NY/daml/blob/master/ghc-lib/working-on-ghc-lib.md
+                (
+                    "ghc-lib-parser",
+                    {
+                        "url": "https://digitalassetsdk.bintray.com/ghc-lib/ghc-lib-parser-0.20190411.1.tar.gz",
+                        "stripPrefix": "ghc-lib-parser-0.20190411.1",
+                        "sha256": "01e7fe236cdea54d51831d4941772214a843e937dac2d22f7e8a6f6339c87deb",
+                    },
+                ),
+                (
+                    "ghc-lib",
+                    {
+                        "url": "https://digitalassetsdk.bintray.com/ghc-lib/ghc-lib-0.20190411.1.tar.gz",
+                        "stripPrefix": "ghc-lib-0.20190411.1",
+                        "sha256": "1f99517659417225dfe172628cf3154624cc8ab6fb850953033f628f66b86492",
+                    },
+                ),
+                (
+                    "bytestring-nums",
+                    {
+                        "version": "0.3.6",
+                        "sha256": "bdca97600d91f00bb3c0f654784e3fbd2d62fcf4671820578105487cdf39e7cd",
+                    },
+                ),
+                (
+                    "unix-time",
+                    {
+                        "version": "0.4.5",
+                        "sha256": "fe7805c62ad682589567afeee265e6e230170c3941cdce479a2318d1c5088faf",
+                    },
+                ),
+                (
+                    "zip-archive",
+                    {
+                        "version": "0.3.3",
+                        "sha256": "988adee77c806e0b497929b24d5526ea68bd3297427da0d0b30b99c094efc84d",
+                    },
+                ),
+                (
+                    "js-dgtable",
+                    {
+                        "version": "0.5.2",
+                        "sha256": "e28dd65bee8083b17210134e22e01c6349dc33c3b7bd17705973cd014e9f20ac",
+                    },
+                ),
+                (
+                    "shake",
+                    {
+                        "version": "0.17.8",
+                        "sha256": "ade4162f7540f044f0446981120800076712d1f98d30c5b5344c0f7828ec49a2",
+                    },
+                ),
+                (
+                    "filepattern",
+                    {
+                        "version": "0.1.1",
+                        "sha256": "f7fc5bdcfef0d43a793a3c64e7c0fd3b1d35eea97a37f0e69d6612ab255c9b4b",
+                    },
+                ),
+                (
+                    "terminal-progress-bar",
+                    {
+                        "version": "0.4.0.1",
+                        "sha256": "c5a9720fcbcd9d83f9551e431ee3975c61d7da6432aa687aef0c0e04e59ae277",
+                    },
+                ),
+            ],
+        pkgs = packages,
+    ),
 )
 
 c2hs_version = "0.28.3"
+
 c2hs_hash = "80cc6db945ee7c0328043b4e69213b2a1cb0806fb35c8362f9dea4a2c312f1cc"
+
 c2hs_package_id = "c2hs-{0}".format(c2hs_version)
+
 c2hs_url = "https://hackage.haskell.org/package/{0}/{1}.tar.gz".format(
-  c2hs_package_id,
-  c2hs_package_id,
+    c2hs_package_id,
+    c2hs_package_id,
 )
+
 c2hs_build_file = "//3rdparty/haskell:BUILD.c2hs"
+
 http_archive(
-  name = "haskell_c2hs",
-  build_file = c2hs_build_file,
-  sha256 = c2hs_hash,
-  strip_prefix = c2hs_package_id,
-  urls = [c2hs_url],
-  patches = ["@com_github_digital_asset_daml//bazel_tools:haskell-c2hs.patch"],
-  patch_args = ["-p1"]
+    name = "haskell_c2hs",
+    build_file = c2hs_build_file,
+    patch_args = ["-p1"],
+    patches = ["@com_github_digital_asset_daml//bazel_tools:haskell-c2hs.patch"],
+    sha256 = c2hs_hash,
+    strip_prefix = c2hs_package_id,
+    urls = [c2hs_url],
 )
 
 hazel_custom_package_hackage(
-  package_name = "clock",
-  version = "0.7.2",
-  sha256 = "886601978898d3a91412fef895e864576a7125d661e1f8abc49a2a08840e691f",
-  build_file = "//3rdparty/haskell:BUILD.clock",
+    package_name = "clock",
+    build_file = "//3rdparty/haskell:BUILD.clock",
+    sha256 = "886601978898d3a91412fef895e864576a7125d661e1f8abc49a2a08840e691f",
+    version = "0.7.2",
 )
 
 # We only use a custom build on Windows
 hazel_custom_package_hackage(
-      package_name = "network",
-      version = "2.8.0.0",
-      sha256 = "c8905268b7e3b4cf624a40245bf11b35274a6dd836a5d4d531b5760075645303",
-      build_file = "//3rdparty/haskell:BUILD.network",
-    ) if is_windows else None
+    package_name = "network",
+    build_file = "//3rdparty/haskell:BUILD.network",
+    sha256 = "c8905268b7e3b4cf624a40245bf11b35274a6dd836a5d4d531b5760075645303",
+    version = "2.8.0.0",
+) if is_windows else None
 
 hazel_custom_package_hackage(
-  package_name = "zlib",
-  version = "0.6.2",
-  sha256 = "0dcc7d925769bdbeb323f83b66884101084167501f11d74d21eb9bc515707fed",
-  build_file = "//3rdparty/haskell:BUILD.zlib",
+    package_name = "zlib",
+    build_file = "//3rdparty/haskell:BUILD.zlib",
+    sha256 = "0dcc7d925769bdbeb323f83b66884101084167501f11d74d21eb9bc515707fed",
+    version = "0.6.2",
 )
 
 hazel_custom_package_hackage(
-  package_name = "streaming-commons",
-  version = "0.2.1.0",
-  sha256 = "d8d1fe588924479ea7eefce8c6af77dfb373ee6bde7f4691bdfcbd782b36d68d",
-  build_file = "//3rdparty/haskell:BUILD.streaming-commons",
+    package_name = "streaming-commons",
+    build_file = "//3rdparty/haskell:BUILD.streaming-commons",
+    sha256 = "d8d1fe588924479ea7eefce8c6af77dfb373ee6bde7f4691bdfcbd782b36d68d",
+    version = "0.2.1.0",
 )
 
 hazel_custom_package_github(
-  package_name = "wai-app-static",
-  github_user = "nmattia-da",
-  github_repo = "wai",
-  strip_prefix = "wai-app-static",
-  repo_sha = "05179164831432f207f3d43580c51161d519d191",
-  build_file = "//3rdparty/haskell:BUILD.wai-app-static",
+    package_name = "wai-app-static",
+    build_file = "//3rdparty/haskell:BUILD.wai-app-static",
+    github_repo = "wai",
+    github_user = "nmattia-da",
+    repo_sha = "05179164831432f207f3d43580c51161d519d191",
+    strip_prefix = "wai-app-static",
 )
 
 hazel_custom_package_github(
-  package_name = "arx",
-  github_user = "solidsnack",
-  github_repo = "arx",
-  repo_sha = "7561fed76bb613302d1ae104f0eb2ad13daa9fac",
-  build_file = "//3rdparty/haskell:BUILD.arx",
-  patches = ["@com_github_digital_asset_daml//bazel_tools:haskell-arx.patch"],
-  patch_args = ["-p1"],
+    package_name = "arx",
+    build_file = "//3rdparty/haskell:BUILD.arx",
+    github_repo = "arx",
+    github_user = "solidsnack",
+    patch_args = ["-p1"],
+    patches = ["@com_github_digital_asset_daml//bazel_tools:haskell-arx.patch"],
+    repo_sha = "7561fed76bb613302d1ae104f0eb2ad13daa9fac",
 )
 
 load("//bazel_tools:java.bzl", "java_home_runtime")
+
 java_home_runtime(name = "java_home")
 
 # rules_go used here to compile a wrapper around the protoc-gen-scala plugin
@@ -498,9 +574,6 @@ load("@io_bazel_rules_go//go:deps.bzl", "go_register_toolchains", "go_rules_depe
 nixpkgs_package(
     name = "go_nix",
     attribute_path = "go",
-    nix_file = "//nix:bazel.nix",
-    nix_file_deps = common_nix_file_deps,
-    repositories = dev_env_nix_repos,
     build_file_content = """
     filegroup(
         name = "sdk",
@@ -508,14 +581,14 @@ nixpkgs_package(
         visibility = ["//visibility:public"],
     )
     """,
+    nix_file = "//nix:bazel.nix",
+    nix_file_deps = common_nix_file_deps,
+    repositories = dev_env_nix_repos,
 )
 
 nixpkgs_package(
     name = "libffi_nix",
     attribute_path = "libffi.dev",
-    nix_file = "//nix:bazel.nix",
-    nix_file_deps = common_nix_file_deps,
-    repositories = dev_env_nix_repos,
     build_file_content = """
 package(default_visibility = ["//visibility:public"])
 
@@ -530,6 +603,9 @@ cc_library(
     strip_include_prefix = "include",
 )
 """,
+    nix_file = "//nix:bazel.nix",
+    nix_file_deps = common_nix_file_deps,
+    repositories = dev_env_nix_repos,
 )
 
 # A repository that generates the Go SDK imports, see
@@ -544,51 +620,59 @@ load("@io_bazel_rules_go//go:deps.bzl", "go_wrap_sdk")
 # On Nix platforms we use the Nix provided Go SDK, on Windows we let Bazel pull
 # an upstream one.
 go_wrap_sdk(
-        name = "go_sdk",
-        root_file = "@go_nix//:share/go/README.md",
-    ) if not is_windows else None
+    name = "go_sdk",
+    root_file = "@go_nix//:share/go/README.md",
+) if not is_windows else None
 
 go_rules_dependencies()
+
 go_register_toolchains()
 
 load("@bazel_gazelle//:deps.bzl", "gazelle_dependencies", "go_repository")
+
 gazelle_dependencies()
 
 # protoc-gen-doc repo
 go_repository(
     name = "com_github_pseudomuto_protoc_gen_doc",
-    importpath = "github.com/pseudomuto/protoc-gen-doc",
     commit = "0c4d666cfe1175663cf067963396a0b9b34f543f",
+    importpath = "github.com/pseudomuto/protoc-gen-doc",
 )
 
 # protokit repo
 go_repository(
     name = "com_github_pseudomuto_protokit",
-    importpath = "github.com/pseudomuto/protokit",
     commit = "7037620bf27b13fcdc10b1b17ddef82540db670b",
+    importpath = "github.com/pseudomuto/protokit",
 )
 
 load(
-  '@io_bazel_rules_scala//scala:scala.bzl',
-  'scala_repositories'
+    "@io_bazel_rules_scala//scala:scala.bzl",
+    "scala_repositories",
 )
-scala_repositories(("2.12.6", {
-    "scala_compiler": "3023b07cc02f2b0217b2c04f8e636b396130b3a8544a8dfad498a19c3e57a863",
-    "scala_library": "f81d7144f0ce1b8123335b72ba39003c4be2870767aca15dd0888ba3dab65e98",
-    "scala_reflect": "ffa70d522fc9f9deec14358aa674e6dd75c9dfa39d4668ef15bb52f002ce99fa"
-}))
 
-load('@io_bazel_rules_scala//scala:toolchains.bzl', 'scala_register_toolchains')
+scala_repositories((
+    "2.12.6",
+    {
+        "scala_compiler": "3023b07cc02f2b0217b2c04f8e636b396130b3a8544a8dfad498a19c3e57a863",
+        "scala_library": "f81d7144f0ce1b8123335b72ba39003c4be2870767aca15dd0888ba3dab65e98",
+        "scala_reflect": "ffa70d522fc9f9deec14358aa674e6dd75c9dfa39d4668ef15bb52f002ce99fa",
+    },
+))
+
+load("@io_bazel_rules_scala//scala:toolchains.bzl", "scala_register_toolchains")
+
 scala_register_toolchains()
 
 load("@io_bazel_rules_scala//jmh:jmh.bzl", "jmh_repositories")
+
 jmh_repositories()
 
 dev_env_package(
-  name = "nodejs_dev_env",
-  nix_label = "@node_nix",
-  win_tool = "nodejs-10.12.0",
-  symlink_path = "nodejs_dev_env",
+    name = "nodejs_dev_env",
+    nix_label = "@node_nix",
+    symlink_path = "nodejs_dev_env",
+    win_tool = "nodejs-10.12.0",
 )
 
 # Setup the Node.js toolchain
@@ -617,41 +701,47 @@ ts_setup_workspace()
 
 # TODO use fine-grained managed dependency
 yarn_install(
-  name = "daml_extension_deps",
-  package_json = "//daml-foundations/daml-tools/daml-extension:package.json",
-  yarn_lock = "//daml-foundations/daml-tools/daml-extension:yarn.lock",
+    name = "daml_extension_deps",
+    package_json = "//daml-foundations/daml-tools/daml-extension:package.json",
+    yarn_lock = "//daml-foundations/daml-tools/daml-extension:yarn.lock",
 )
 
 # TODO use fine-grained managed dependency
 yarn_install(
-  name = "language_server_tests_deps",
-  package_json = "//daml-foundations/daml-tools/language-server-tests:package.json",
-  yarn_lock = "//daml-foundations/daml-tools/language-server-tests:yarn.lock",
+    name = "language_server_tests_deps",
+    package_json = "//daml-foundations/daml-tools/language-server-tests:package.json",
+    yarn_lock = "//daml-foundations/daml-tools/language-server-tests:yarn.lock",
 )
 
 # TODO use fine-grained managed dependency
 yarn_install(
-  name = "navigator_frontend_deps",
-  package_json = "//navigator/frontend:package.json",
-  yarn_lock = "//navigator/frontend:yarn.lock",
+    name = "navigator_frontend_deps",
+    package_json = "//navigator/frontend:package.json",
+    yarn_lock = "//navigator/frontend:yarn.lock",
 )
 
 # Bazel Skydoc - Build rule documentation generator
 load("@io_bazel_rules_sass//:package.bzl", "rules_sass_dependencies")
+
 rules_sass_dependencies()
+
 load("@io_bazel_rules_sass//:defs.bzl", "sass_repositories")
+
 sass_repositories()
 
 load("//3rdparty:workspace.bzl", "maven_dependencies")
+
 maven_dependencies()
 
 load("@io_bazel_skydoc//skylark:skylark.bzl", "skydoc_repositories")
+
 skydoc_repositories()
 
 # We usually use the _deploy_jar target to produce self-contained jars, but here we're using jar_jar because the size
 # of codegen tool is substantially reduced (as shown below) and that the presence of JVM internal com.sun classes could
 # theoretically stop the codegen running against JVMs other the OpenJDK 8 (the current JVM used for building).
 load("@com_github_johnynek_bazel_jar_jar//:jar_jar.bzl", "jar_jar_repositories")
+
 jar_jar_repositories()
 
 # The following is advertised by rules_proto, but we define our own dependencies
@@ -664,4 +754,18 @@ jar_jar_repositories()
 # Load the grpc deps last, since it won't try to load already loaded
 # dependencies.
 load("@com_github_grpc_grpc//bazel:grpc_deps.bzl", "grpc_deps")
+
 grpc_deps()
+
+# Buildifier.
+# It is written in Go and hence needs rules_go to be available.
+http_archive(
+    name = "com_github_bazelbuild_buildtools",
+    sha256 = "7525deb4d74e3aa4cb2b960da7d1c400257a324be4e497f75d265f2f508c518f",
+    strip_prefix = "buildtools-0.22.0",
+    url = "https://github.com/bazelbuild/buildtools/archive/0.22.0.tar.gz",
+)
+
+load("@com_github_bazelbuild_buildtools//buildifier:deps.bzl", "buildifier_dependencies")
+
+buildifier_dependencies()
diff --git a/bazel_tools/BUILD.bazel b/bazel_tools/BUILD.bazel
index 7f3b2982cd..6f77add38a 100644
--- a/bazel_tools/BUILD.bazel
+++ b/bazel_tools/BUILD.bazel
@@ -3,17 +3,18 @@
 
 # Export Bazel sources for Bazel API docs.
 exports_files(
-    [ "haskell.bzl",
-      "scala.bzl",
-      "haskell-c2hs.patch",
-      "haskell-static-linking.patch",
-      "haskell-hazel-shorten-source-dirs.patch",
-      "haskell-arx.patch",
-      "haskell-win-sys-includes.patch",
-      "hackage_mirror.patch",
-      "haskell-ld-library-path.patch",
-      "haskell-win-so-name.patch",
-      "pom_template.xml",
+    [
+        "haskell.bzl",
+        "scala.bzl",
+        "haskell-c2hs.patch",
+        "haskell-static-linking.patch",
+        "haskell-hazel-shorten-source-dirs.patch",
+        "haskell-arx.patch",
+        "haskell-win-sys-includes.patch",
+        "hackage_mirror.patch",
+        "haskell-ld-library-path.patch",
+        "haskell-win-so-name.patch",
+        "pom_template.xml",
     ],
-    visibility = ["//:__subpackages__"]
+    visibility = ["//:__subpackages__"],
 )
diff --git a/bazel_tools/client_server_test/BUILD.bazel b/bazel_tools/client_server_test/BUILD.bazel
index 2936a1d742..5d669f6efd 100644
--- a/bazel_tools/client_server_test/BUILD.bazel
+++ b/bazel_tools/client_server_test/BUILD.bazel
@@ -2,4 +2,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 # Export Bazel sources for Bazel API docs.
-exports_files(["client_server_test.bzl"], visibility = ["//bazel_tools/docs:__pkg__"])
+exports_files(
+    ["client_server_test.bzl"],
+    visibility = ["//bazel_tools/docs:__pkg__"],
+)
diff --git a/bazel_tools/client_server_test/client_server_test.bzl b/bazel_tools/client_server_test/client_server_test.bzl
index cafabe0064..9381ff335d 100644
--- a/bazel_tools/client_server_test/client_server_test.bzl
+++ b/bazel_tools/client_server_test/client_server_test.bzl
@@ -2,61 +2,60 @@
 # SPDX-License-Identifier: Apache-2.0
 
 def _expand_args(ctx, args):
-  return " ".join([ ctx.expand_location(a, ctx.attr.data).replace("'", "'\\''") for a in args])
+    return " ".join([ctx.expand_location(a, ctx.attr.data).replace("'", "'\\''") for a in args])
 
 def _client_server_test_impl(ctx):
-
-  # Construct wrapper to execute the runner, which in turn
-  # will start the client and server.
-  wrapper = ctx.actions.declare_file(ctx.label.name + "_wrapper.sh")
-  ctx.actions.write(
-    output = wrapper,
-    content = """#!/usr/bin/env bash
+    # Construct wrapper to execute the runner, which in turn
+    # will start the client and server.
+    wrapper = ctx.actions.declare_file(ctx.label.name + "_wrapper.sh")
+    ctx.actions.write(
+        output = wrapper,
+        content = """#!/usr/bin/env bash
 {runner} '{client}' '{client_args}' '{server}' '{server_args}'
 """.format(
-      runner = ctx.executable._runner.short_path,
-      client = ctx.executable.client.short_path,
-      client_args = _expand_args(ctx, ctx.attr.client_args),
-      server = ctx.executable.server.short_path,
-      server_args = _expand_args(ctx, ctx.attr.server_args),
-    ),
-    is_executable = True
-  )
+            runner = ctx.executable._runner.short_path,
+            client = ctx.executable.client.short_path,
+            client_args = _expand_args(ctx, ctx.attr.client_args),
+            server = ctx.executable.server.short_path,
+            server_args = _expand_args(ctx, ctx.attr.server_args),
+        ),
+        is_executable = True,
+    )
 
-  runfiles = ctx.runfiles(files = [wrapper], collect_data = True)
-  runfiles = runfiles.merge(ctx.attr._runner[DefaultInfo].default_runfiles)
-  runfiles = runfiles.merge(ctx.attr.client[DefaultInfo].default_runfiles)
-  runfiles = runfiles.merge(ctx.attr.server[DefaultInfo].default_runfiles)
+    runfiles = ctx.runfiles(files = [wrapper], collect_data = True)
+    runfiles = runfiles.merge(ctx.attr._runner[DefaultInfo].default_runfiles)
+    runfiles = runfiles.merge(ctx.attr.client[DefaultInfo].default_runfiles)
+    runfiles = runfiles.merge(ctx.attr.server[DefaultInfo].default_runfiles)
 
-  return DefaultInfo(
-    executable = wrapper,
-    files = depset([wrapper]),
-    runfiles = runfiles,
-  )
+    return DefaultInfo(
+        executable = wrapper,
+        files = depset([wrapper]),
+        runfiles = runfiles,
+    )
 
 client_server_test = rule(
-  implementation = _client_server_test_impl,
-  test = True,
-  executable = True,
-  attrs = {
-    "_runner": attr.label(
-      cfg = "host",
-      allow_single_file = True,
-      executable = True,
-      default = Label("@//bazel_tools/client_server_test/runner:runner"),
-    ),
-    "client": attr.label(
-      cfg = "target",
-      executable = True,
-    ),
-    "client_args": attr.string_list(),
-    "server": attr.label(
-      cfg = "target",
-      executable = True,
-    ),
-    "server_args": attr.string_list(),
-    "data": attr.label_list(allow_files = True),
-  },
+    implementation = _client_server_test_impl,
+    test = True,
+    executable = True,
+    attrs = {
+        "_runner": attr.label(
+            cfg = "host",
+            allow_single_file = True,
+            executable = True,
+            default = Label("@//bazel_tools/client_server_test/runner:runner"),
+        ),
+        "client": attr.label(
+            cfg = "target",
+            executable = True,
+        ),
+        "client_args": attr.string_list(),
+        "server": attr.label(
+            cfg = "target",
+            executable = True,
+        ),
+        "server_args": attr.string_list(),
+        "data": attr.label_list(allow_files = True),
+    },
 )
 """Create a client-server test.
 
diff --git a/bazel_tools/client_server_test/runner/BUILD.bazel b/bazel_tools/client_server_test/runner/BUILD.bazel
index 9fd340359a..27526eb7c3 100644
--- a/bazel_tools/client_server_test/runner/BUILD.bazel
+++ b/bazel_tools/client_server_test/runner/BUILD.bazel
@@ -1,12 +1,11 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load ("//bazel_tools:haskell.bzl", "da_haskell_binary")
+load("//bazel_tools:haskell.bzl", "da_haskell_binary")
 
 da_haskell_binary(
     name = "runner",
     srcs = ["Main.hs"],
-    deps = [],
     hazel_deps = [
         "base",
         "process",
@@ -20,5 +19,5 @@ da_haskell_binary(
         "split",
     ],
     visibility = ["//visibility:public"],
+    deps = [],
 )
-
diff --git a/bazel_tools/client_server_test/tests/BUILD.bazel b/bazel_tools/client_server_test/tests/BUILD.bazel
index 186070894a..31aa9d0756 100644
--- a/bazel_tools/client_server_test/tests/BUILD.bazel
+++ b/bazel_tools/client_server_test/tests/BUILD.bazel
@@ -2,45 +2,43 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//bazel_tools/client_server_test:client_server_test.bzl",
-  "client_server_test"
+    "//bazel_tools/client_server_test:client_server_test.bzl",
+    "client_server_test",
 )
-
 load(
-  "//bazel_tools:scala.bzl",
-  "da_scala_binary",
+    "//bazel_tools:scala.bzl",
+    "da_scala_binary",
 )
 
 sh_binary(
-  name = "client",
-  srcs = ["client.sh"],
+    name = "client",
+    srcs = ["client.sh"],
 )
 
 exports_files(["client_input_file"])
 
 da_scala_binary(
-  name = "server",
-  main_class = "Main",
-  srcs = ["server.scala"],
-  deps = [
-    "//3rdparty/jvm/com/github/scopt:scopt",
-  ],
+    name = "server",
+    srcs = ["server.scala"],
+    main_class = "Main",
+    deps = [
+        "//3rdparty/jvm/com/github/scopt",
+    ],
 )
 
 client_server_test(
-  name = "test",
-  client = ":client",
-  client_args = [
-    "--foobar",
-    # Use the input file passed in via `data`.
-    "$(location :client_input_file)"
-  ],
-  server = ":server",
+    name = "test",
+    timeout = "short",
+    client = ":client",
+    client_args = [
+        "--foobar",
+        # Use the input file passed in via `data`.
+        "$(location :client_input_file)",
+    ],
 
-  # Data files available to both client and server.
-  data = [
-    ":client_input_file"
-  ],
-  timeout="short",
+    # Data files available to both client and server.
+    data = [
+        ":client_input_file",
+    ],
+    server = ":server",
 )
-
diff --git a/bazel_tools/dev_env_package/BUILD.bazel b/bazel_tools/dev_env_package/BUILD.bazel
index 294e79d843..c6eb2558a6 100644
--- a/bazel_tools/dev_env_package/BUILD.bazel
+++ b/bazel_tools/dev_env_package/BUILD.bazel
@@ -1,3 +1,2 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
-
diff --git a/bazel_tools/dev_env_package/dev_env_package.bzl b/bazel_tools/dev_env_package/dev_env_package.bzl
index 90a76ba9ff..a7cbf5fb15 100644
--- a/bazel_tools/dev_env_package/dev_env_package.bzl
+++ b/bazel_tools/dev_env_package/dev_env_package.bzl
@@ -15,12 +15,12 @@ exports_files(srcs=all_files)
 def _dev_env_package_impl(ctx):
     if get_cpu_value(ctx) == "x64_windows":
         ps = ctx.which("powershell")
-        ps_result = ctx.execute([ps, "-Command", "dadew enable; dadew where"], quiet=True)
+        ps_result = ctx.execute([ps, "-Command", "dadew enable; dadew where"], quiet = True)
         if ps_result.return_code != 0:
             fail("Failed to obtain dadew location.\n Exit code %d.\n%s\n%s" %
-            (ps_result.return_code, ps_result.stdout, ps_result.stderr))
+                 (ps_result.return_code, ps_result.stdout, ps_result.stderr))
 
-        dadew = ps_result.stdout.splitlines(keepends=False)[0]
+        dadew = ps_result.stdout.splitlines(keepends = False)[0]
         tool_home = "%s\\scoop\\apps\\%s\\current" % (dadew, ctx.attr.win_tool)
     else:
         tool_home = "../%s" % ctx.attr.nix_label.name
@@ -29,9 +29,9 @@ def _dev_env_package_impl(ctx):
 
     build_path = ctx.path("BUILD")
     build_content = _dev_env_package_build_template.format(
-        rule_name = ctx.name
+        rule_name = ctx.name,
     )
-    ctx.file(build_path, content=build_content, executable=False)
+    ctx.file(build_path, content = build_content, executable = False)
 
 dev_env_package = repository_rule(
     implementation = _dev_env_package_impl,
diff --git a/bazel_tools/dev_env_package/dev_env_tool.bzl b/bazel_tools/dev_env_package/dev_env_tool.bzl
index 51478a4e80..33f85950bc 100644
--- a/bazel_tools/dev_env_package/dev_env_tool.bzl
+++ b/bazel_tools/dev_env_package/dev_env_tool.bzl
@@ -27,20 +27,20 @@ config_setting(
 def _dev_env_tool_impl(ctx):
     if get_cpu_value(ctx) == "x64_windows":
         ps = ctx.which("powershell")
-        ps_result = ctx.execute([ps, "-Command", "dadew enable; dadew where"], quiet=True)
+        ps_result = ctx.execute([ps, "-Command", "dadew enable; dadew where"], quiet = True)
         if ps_result.return_code != 0:
             fail("Failed to obtain dadew location.\n Exit code %d.\n%s\n%s" %
-            (ps_result.return_code, ps_result.stdout, ps_result.stderr))
+                 (ps_result.return_code, ps_result.stdout, ps_result.stderr))
 
-        dadew = ps_result.stdout.splitlines(keepends=False)[0]
+        dadew = ps_result.stdout.splitlines(keepends = False)[0]
         tool_home = "%s\\scoop\\apps\\%s\\current" % (dadew, ctx.attr.win_tool)
         for i in ctx.attr.win_include:
-            ctx.symlink("%s\\%s"%(tool_home, i), "%s\\%s"%(ctx.path(""), i))
+            ctx.symlink("%s\\%s" % (tool_home, i), "%s\\%s" % (ctx.path(""), i))
 
     else:
         tool_home = "../%s" % ctx.attr.nix_label.name
         for i in ctx.attr.nix_include:
-            ctx.symlink("%s/%s"%(tool_home, i), "%s/%s"%(ctx.path(""), i))
+            ctx.symlink("%s/%s" % (tool_home, i), "%s/%s" % (ctx.path(""), i))
 
     build_path = ctx.path("BUILD")
     build_content = _dev_env_tool_build_template.format(
@@ -51,7 +51,7 @@ def _dev_env_tool_impl(ctx):
         lbrace = "{",
         rbrace = "}",
     )
-    ctx.file(build_path, content=build_content, executable=False)
+    ctx.file(build_path, content = build_content, executable = False)
 
 dev_env_tool = repository_rule(
     implementation = _dev_env_tool_impl,
diff --git a/bazel_tools/docs.bzl b/bazel_tools/docs.bzl
index 40961f000c..13d5eebfaa 100644
--- a/bazel_tools/docs.bzl
+++ b/bazel_tools/docs.bzl
@@ -7,14 +7,14 @@ def da_doc_package(**args):
     native.filegroup(
         name = src_name,
         srcs = native.glob(["source/**"]),
-        )
+    )
     prepare = args.get("prepare", "")
     extra_srcs = args.get("extra_srcs", [])
     native.genrule(
-       name = args["name"],
-       outs = ["sources.tar.gz"],
-       srcs = [src_name, "@tar_dev_env//:tar", "@gzip_dev_env//:gzip"] + extra_srcs,
-       cmd = """
+        name = args["name"],
+        outs = ["sources.tar.gz"],
+        srcs = [src_name, "@tar_dev_env//:tar", "@gzip_dev_env//:gzip"] + extra_srcs,
+        cmd = """
             export PATH=$$(dirname $(location {gzip})):$$PATH
             # Bazel makes it fairly hard to get the directory in a robust way so
             # we take the first file and strip everything after source.
@@ -23,9 +23,9 @@ def da_doc_package(**args):
             {prepare}
             $(location {tar}) czhf $(location sources.tar.gz) -C $$BASEDIR source
         """.format(
-              srcs = ":" + src_name,
-              prepare = prepare,
-              tar = "@tar_dev_env//:tar",
-              gzip = "@gzip_dev_env//:gzip",
-            )
-        )
+            srcs = ":" + src_name,
+            prepare = prepare,
+            tar = "@tar_dev_env//:tar",
+            gzip = "@gzip_dev_env//:gzip",
+        ),
+    )
diff --git a/bazel_tools/fat_cc_library.bzl b/bazel_tools/fat_cc_library.bzl
index c20bbde8a3..81b8638745 100644
--- a/bazel_tools/fat_cc_library.bzl
+++ b/bazel_tools/fat_cc_library.bzl
@@ -7,6 +7,7 @@ def _fat_cc_library_impl(ctx):
     input_lib = ctx.attr.input_lib
     cc_info = input_lib[CcInfo]
     static_libs = []
+
     # For now we assume that we have static PIC libs for all libs.
     # It should be possible to extend this but we do not have a need
     # for it so far and it would complicate things.
@@ -19,7 +20,7 @@ def _fat_cc_library_impl(ctx):
             static_lib = lib.static_library
         else:
             fail("No (PIC) static library found for '{}'.".format(
-                str(lib.dynamic_library.path)
+                str(lib.dynamic_library.path),
             ))
         static_libs += [static_lib]
 
@@ -51,13 +52,13 @@ def _fat_cc_library_impl(ctx):
             # On Windows some libs seems to depend on Windows sockets
             (["-lws2_32"] if is_windows else []),
         inputs = static_libs,
-	env = {"PATH": ""},
+        env = {"PATH": ""},
     )
 
     mri_script_content = "\n".join(
         ["create {}".format(static_lib.path)] +
         ["addlib {}".format(lib.path) for lib in static_libs] +
-        ["save", "end"]
+        ["save", "end"],
     ) + "\n"
 
     mri_script = ctx.actions.declare_file(ctx.label.name + "_mri")
@@ -75,7 +76,7 @@ def _fat_cc_library_impl(ctx):
             inputs = static_libs,
             arguments =
                 ["-no_warning_for_no_symbols", "-static", "-o", static_lib.path] +
-                [f.path for f in static_libs]
+                [f.path for f in static_libs],
         )
     else:
         ctx.actions.run_shell(
@@ -123,12 +124,11 @@ fat_cc_library = rule(
         ),
         "_cc_compiler": attr.label(
             allow_files = True,
-            executable =True,
+            executable = True,
             cfg = "host",
             default =
                 # bin/cc is gcc on Darwin which fails to find libc++
-                Label("@nixpkgs_cc_toolchain//:bin/clang") if is_darwin
-                else None,
+                Label("@nixpkgs_cc_toolchain//:bin/clang") if is_darwin else None,
         ),
         "whole_archive_flag": attr.string_list(
             # ld on MacOS doesn’t understand --whole-archive
diff --git a/bazel_tools/haskell.bzl b/bazel_tools/haskell.bzl
index 8035f77366..cce9536e25 100644
--- a/bazel_tools/haskell.bzl
+++ b/bazel_tools/haskell.bzl
@@ -3,20 +3,20 @@
 
 load(
     "@io_tweag_rules_haskell//haskell:haskell.bzl",
-    "haskell_library",
     "haskell_binary",
-    "haskell_test",
+    "haskell_library",
     "haskell_repl",
+    "haskell_test",
 )
-load("@io_tweag_rules_haskell//haskell:c2hs.bzl",
+load(
+    "@io_tweag_rules_haskell//haskell:c2hs.bzl",
     "c2hs_library",
 )
 load(
     "@ai_formation_hazel//:hazel.bzl",
     "hazel_library",
 )
-load ("//bazel_tools:hlint.bzl", "haskell_hlint")
-
+load("//bazel_tools:hlint.bzl", "haskell_hlint")
 load("@os_info//:os_info.bzl", "is_windows")
 
 # This file defines common Haskell language extensions and compiler flags used
@@ -51,17 +51,21 @@ common_haskell_exts = [
 ]
 
 common_haskell_flags = [
-  "-Wall", "-Werror", "-Wincomplete-uni-patterns", "-Wno-name-shadowing",
-  "-fno-omit-yields",
-  "-threaded", "-rtsopts",
+    "-Wall",
+    "-Werror",
+    "-Wincomplete-uni-patterns",
+    "-Wno-name-shadowing",
+    "-fno-omit-yields",
+    "-threaded",
+    "-rtsopts",
 
-  # run on two cores, disable idle & parallel GC
-  "-with-rtsopts=-N2 -qg -I0",
+    # run on two cores, disable idle & parallel GC
+    "-with-rtsopts=-N2 -qg -I0",
 ]
 
 def _wrap_rule(rule, name = "", deps = [], hazel_deps = [], compiler_flags = [], **kwargs):
-    ext_flags = [ "-X%s" % ext for ext in common_haskell_exts ]
-    hazel_libs = [ hazel_library(dep) for dep in hazel_deps ]
+    ext_flags = ["-X%s" % ext for ext in common_haskell_exts]
+    hazel_libs = [hazel_library(dep) for dep in hazel_deps]
     rule(
         name = name,
         compiler_flags = ext_flags + common_haskell_flags + compiler_flags,
@@ -76,6 +80,7 @@ def _wrap_rule(rule, name = "", deps = [], hazel_deps = [], compiler_flags = [],
             deps = [name],
             testonly = True,
         )
+
     # Load Main module on executable rules.
     repl_ghci_commands = []
     if "main_function" in kwargs:
@@ -105,7 +110,7 @@ def _wrap_rule(rule, name = "", deps = [], hazel_deps = [], compiler_flags = [],
         collect_data = select({
             "//:ghci_data": True,
             "//conditions:default": False,
-        })
+        }),
     )
 
 def da_haskell_library(**kwargs):
@@ -138,7 +143,6 @@ def da_haskell_library(**kwargs):
     """
     _wrap_rule(haskell_library, **kwargs)
 
-
 def da_haskell_binary(main_function = "Main.main", **kwargs):
     """
     Define a Haskell executable.
@@ -175,7 +179,6 @@ def da_haskell_binary(main_function = "Main.main", **kwargs):
         **kwargs
     )
 
-
 def da_haskell_test(main_function = "Main.main", testonly = True, **kwargs):
     """
     Define a Haskell test suite.
@@ -215,7 +218,6 @@ def da_haskell_test(main_function = "Main.main", testonly = True, **kwargs):
         **kwargs
     )
 
-
 def da_haskell_repl(**kwargs):
     """
     Define a Haskell repl.
@@ -255,43 +257,43 @@ def da_haskell_repl(**kwargs):
         ```
 
     """
+
     # The common_haskell_exts and common_haskell_flags are already passed on
     # the library/binary/test rule wrappers. haskell_repl will pick these up
     # automatically, if such targets are loaded by source.
     # Right now we don't set any default flags.
     haskell_repl(**kwargs)
 
-
 def _sanitize_string_for_usage(s):
-  res_array = []
-  for idx in range(len(s)):
-    c = s[idx]
-    if c.isalnum() or c == ".":
-      res_array.append(c)
-    else:
-      res_array.append("_")
-  return "".join(res_array)
+    res_array = []
+    for idx in range(len(s)):
+        c = s[idx]
+        if c.isalnum() or c == ".":
+            res_array.append(c)
+        else:
+            res_array.append("_")
+    return "".join(res_array)
 
-def c2hs_suite(name, hazel_deps, deps = [], srcs=[], c2hs_srcs=[], c2hs_src_strip_prefix="", **kwargs):
-  ts = []
-  for file in c2hs_srcs:
-    n = _sanitize_string_for_usage(file)
-    c2hs_library(
-      name = n,
-      srcs = [file],
-      deps = deps + [ ':' + t for t in ts ],
-      src_strip_prefix = c2hs_src_strip_prefix,
+def c2hs_suite(name, hazel_deps, deps = [], srcs = [], c2hs_srcs = [], c2hs_src_strip_prefix = "", **kwargs):
+    ts = []
+    for file in c2hs_srcs:
+        n = _sanitize_string_for_usage(file)
+        c2hs_library(
+            name = n,
+            srcs = [file],
+            deps = deps + [":" + t for t in ts],
+            src_strip_prefix = c2hs_src_strip_prefix,
+        )
+        ts.append(n)
+    da_haskell_library(
+        name = name,
+        srcs = [":" + t for t in ts] + srcs,
+        deps = deps,
+        hazel_deps = hazel_deps,
+        **kwargs
     )
-    ts.append(n)
-  da_haskell_library(
-    name = name,
-    srcs = [ ':' + t for t in ts ] + srcs,
-    deps = deps,
-    hazel_deps = hazel_deps,
-    **kwargs
-  )
 
 # Add extra packages, e.g., packages that are on Hackage but not in Stackage.
 # This cannot be inlined since it is impossible to create a struct in WORKSPACE.
 def add_extra_packages(pkgs, extra):
-  return pkgs + { k: struct(**v) for (k, v) in extra }
+    return pkgs + {k: struct(**v) for (k, v) in extra}
diff --git a/bazel_tools/hlint.bzl b/bazel_tools/hlint.bzl
index 4acd0467ec..e099612a1f 100644
--- a/bazel_tools/hlint.bzl
+++ b/bazel_tools/hlint.bzl
@@ -32,16 +32,18 @@ def _haskell_hlint_rule_impl(ctx):
 def _haskell_hlint_aspect_impl(target, ctx):
     inputFiles = []
     inputPaths = []
-    if hasattr(ctx.rule.attr, 'srcs'):
+    if hasattr(ctx.rule.attr, "srcs"):
         for src in ctx.rule.attr.srcs:
             for f in src.files:
                 # We want to only do native Haskell source files, which
                 # seems to involve ignoring these generated paths
                 # (the f.is_source almost always returns True)
-                if all([f.path.endswith(".hs")
-                       ,f.path.startswith("external/") == False
-                       ,f.path.startswith("bazel-out/") == False
-                       ,f.path.startswith("nix/") == False]):
+                if all([
+                    f.path.endswith(".hs"),
+                    f.path.startswith("external/") == False,
+                    f.path.startswith("bazel-out/") == False,
+                    f.path.startswith("nix/") == False,
+                ]):
                     inputFiles.append(f)
                     inputPaths.append(f.path)
 
@@ -68,7 +70,6 @@ def _haskell_hlint_aspect_impl(target, ctx):
     output_files = OutputGroupInfo(default = outputs)
     return [lint_info, output_files]
 
-
 haskell_hlint_aspect = aspect(
     _haskell_hlint_aspect_impl,
     attr_aspects = ["deps"],
@@ -93,5 +94,5 @@ haskell_hlint = rule(
             aspects = [haskell_hlint_aspect],
             doc = "List of Haskell targets to lint.",
         ),
-    }
+    },
 )
diff --git a/bazel_tools/java.bzl b/bazel_tools/java.bzl
index 26dee5c246..dae47f0fdd 100644
--- a/bazel_tools/java.bzl
+++ b/bazel_tools/java.bzl
@@ -19,7 +19,7 @@ def _java_home_runtime_impl(ctx):
         name = "javabase",
         java_home = ctx.path(java_home),
     )
-    ctx.file("BUILD", content=build_content, executable=False)
+    ctx.file("BUILD", content = build_content, executable = False)
 
 java_home_runtime = repository_rule(
     implementation = _java_home_runtime_impl,
diff --git a/bazel_tools/java_testing/BUILD.bazel b/bazel_tools/java_testing/BUILD.bazel
index 78f2bb1ea8..c3f303aa67 100644
--- a/bazel_tools/java_testing/BUILD.bazel
+++ b/bazel_tools/java_testing/BUILD.bazel
@@ -2,4 +2,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 # Export Bazel sources for Bazel API docs.
-exports_files(["java_test_suite.bzl"], visibility = ["//bazel_tools/docs:__pkg__"])
+exports_files(
+    ["java_test_suite.bzl"],
+    visibility = ["//bazel_tools/docs:__pkg__"],
+)
diff --git a/bazel_tools/java_testing/java_test_suite.bzl b/bazel_tools/java_testing/java_test_suite.bzl
index 411a47d1f4..9fb1029e00 100644
--- a/bazel_tools/java_testing/java_test_suite.bzl
+++ b/bazel_tools/java_testing/java_test_suite.bzl
@@ -3,25 +3,23 @@
 
 # Taken from https://github.com/bazelbuild/rules_scala/blob/2676400bed17b03fdd0fe13a8794eb0ff0129284/scala/scala.bzl#L413
 def _sanitize_string_for_usage(s):
-  res_array = []
-  for idx in range(len(s)):
-    c = s[idx]
-    if c.isalnum() or c == ".":
-      res_array.append(c)
-    else:
-      res_array.append("_")
-  return "".join(res_array)
-
+    res_array = []
+    for idx in range(len(s)):
+        c = s[idx]
+        if c.isalnum() or c == ".":
+            res_array.append(c)
+        else:
+            res_array.append("_")
+    return "".join(res_array)
 
 def _junit_class_name(test_file, strip):
-  (_, _, stripped) = test_file.partition(strip)
-  (sansext, _, _) = stripped.rpartition('.')
-  c = sansext.replace('/', '.')
-  return c
-
+    (_, _, stripped) = test_file.partition(strip)
+    (sansext, _, _) = stripped.rpartition(".")
+    c = sansext.replace("/", ".")
+    return c
 
 # Similar to https://github.com/bazelbuild/rules_scala/blob/2676400bed17b03fdd0fe13a8794eb0ff0129284/scala/scala.bzl#L425
-def java_test_suite(name, srcs=[], strip='', visibility = None, **kwargs):
+def java_test_suite(name, srcs = [], strip = "", visibility = None, **kwargs):
     """Define a Java test-suite.
 
     Generates a java_test for each given source file and bundles them in a
diff --git a/bazel_tools/packaging/BUILD.bazel b/bazel_tools/packaging/BUILD.bazel
index e0400639d7..f490823b8a 100644
--- a/bazel_tools/packaging/BUILD.bazel
+++ b/bazel_tools/packaging/BUILD.bazel
@@ -1,4 +1,7 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-exports_files(["packaging.bzl", "package-app.sh"])
+exports_files([
+    "packaging.bzl",
+    "package-app.sh",
+])
diff --git a/bazel_tools/packaging/packaging.bzl b/bazel_tools/packaging/packaging.bzl
index 8de42b291a..a1cfcef77a 100644
--- a/bazel_tools/packaging/packaging.bzl
+++ b/bazel_tools/packaging/packaging.bzl
@@ -3,22 +3,21 @@
 
 """Packaging of Linux and macOS binaries into tarballs"""
 
-
 def _package_app_impl(ctx):
-  files = depset(ctx.attr.binary.files)
-  runfiles = ctx.attr.binary.default_runfiles.files
-  datafiles = ctx.attr.binary[DefaultInfo].data_runfiles.files
+    files = depset(ctx.attr.binary.files)
+    runfiles = ctx.attr.binary.default_runfiles.files
+    datafiles = ctx.attr.binary[DefaultInfo].data_runfiles.files
 
-  args = ctx.actions.args()
-  inputs = depset([], transitive = [files, runfiles, datafiles] + [r.files for r in ctx.attr.resources])
-  ctx.actions.run_shell(
-    outputs = [ctx.outputs.out],
-    inputs =
-        [ctx.executable.package_app, ctx.executable.patchelf, ctx.executable.tar, ctx.executable.gzip]
-      + inputs.to_list(),
-    arguments = [args],
-    progress_message = "Packaging " + ctx.attr.name,
-    command = """
+    args = ctx.actions.args()
+    inputs = depset([], transitive = [files, runfiles, datafiles] + [r.files for r in ctx.attr.resources])
+    ctx.actions.run_shell(
+        outputs = [ctx.outputs.out],
+        inputs =
+            [ctx.executable.package_app, ctx.executable.patchelf, ctx.executable.tar, ctx.executable.gzip] +
+            inputs.to_list(),
+        arguments = [args],
+        progress_message = "Packaging " + ctx.attr.name,
+        command = """
       set -eu
       export PATH=$PATH:$PWD/`dirname {patchelf}`:$PWD/`dirname {tar}`:$PWD/`dirname {gzip}`
       {package_app} \
@@ -26,78 +25,79 @@ def _package_app_impl(ctx):
         "$PWD/{output}" \
         {resources}
     """.format(
-      patchelf = ctx.executable.patchelf.path,
-      tar = ctx.executable.tar.path,
-      gzip = ctx.executable.gzip.path,
-      output = ctx.outputs.out.path,
-      name = ctx.attr.name,
-      package_app = ctx.executable.package_app.path,
-      binary = ctx.executable.binary.path,
-      resources = " ".join([
-        _get_resource_path(r)
-        for r in ctx.attr.resources
-      ])
+            patchelf = ctx.executable.patchelf.path,
+            tar = ctx.executable.tar.path,
+            gzip = ctx.executable.gzip.path,
+            output = ctx.outputs.out.path,
+            name = ctx.attr.name,
+            package_app = ctx.executable.package_app.path,
+            binary = ctx.executable.binary.path,
+            resources = " ".join([
+                _get_resource_path(r)
+                for r in ctx.attr.resources
+            ]),
+        ),
     )
-  )
 
 def _get_resource_path(r):
-  """Get the path to use for a resource.
-    If the resource has a single file, it'll be copied to
-    the resource root directory. With multiple files the
-    relative directory structure is preserved.
+    """Get the path to use for a resource.
+      If the resource has a single file, it'll be copied to
+      the resource root directory. With multiple files the
+      relative directory structure is preserved.
 
-    This mirrors how rules that produce directories work
-    in Buck.
-  """
-  files = r.files.to_list()
-  if len(files) > 1:
-    first_file = files[0].path
-    prefix_end = first_file.index(r.label.package)
-    # e.g. package foo/bar,
-    # first file at bazel-out/k8-fastbuild/bleh/foo/bar/baz/quux
-    # return path as bazel-out/k8-fastbuild/bleh/foo/bar.
-    return first_file[0:(prefix_end + len(r.label.package))]
-  else:
-    return files[0].path
+      This mirrors how rules that produce directories work
+      in Buck.
+    """
+    files = r.files.to_list()
+    if len(files) > 1:
+        first_file = files[0].path
+        prefix_end = first_file.index(r.label.package)
+
+        # e.g. package foo/bar,
+        # first file at bazel-out/k8-fastbuild/bleh/foo/bar/baz/quux
+        # return path as bazel-out/k8-fastbuild/bleh/foo/bar.
+        return first_file[0:(prefix_end + len(r.label.package))]
+    else:
+        return files[0].path
 
 package_app = rule(
-  implementation = _package_app_impl,
-  attrs = dict({
-    "binary": attr.label(
-      cfg = "target",
-      executable = True
-    ),
-    "resources": attr.label_list(
-      allow_files = True
-    ),
-    "patchelf": attr.label(
-      default = Label("@patchelf_nix//:bin/patchelf"),
-      cfg = "host",
-      executable = True,
-      allow_files = True
-    ),
-    "tar": attr.label(
-      default = Label("@tar_dev_env//:tar"),
-      cfg = "host",
-      executable = True,
-      allow_files = True
-    ),
-    "gzip": attr.label(
-      default = Label("@gzip_dev_env//:gzip"),
-      cfg = "host",
-      executable = True,
-      allow_files = True
-    ),
-    "package_app": attr.label(
-      default = Label("//bazel_tools/packaging:package-app.sh"),
-      cfg = "host",
-      executable = True,
-      allow_files = True
-    )
-  }),
-  outputs = {
-    "out": "%{name}.tar.gz",
-  }
+    implementation = _package_app_impl,
+    attrs = dict({
+        "binary": attr.label(
+            cfg = "target",
+            executable = True,
+        ),
+        "resources": attr.label_list(
+            allow_files = True,
+        ),
+        "patchelf": attr.label(
+            default = Label("@patchelf_nix//:bin/patchelf"),
+            cfg = "host",
+            executable = True,
+            allow_files = True,
+        ),
+        "tar": attr.label(
+            default = Label("@tar_dev_env//:tar"),
+            cfg = "host",
+            executable = True,
+            allow_files = True,
+        ),
+        "gzip": attr.label(
+            default = Label("@gzip_dev_env//:gzip"),
+            cfg = "host",
+            executable = True,
+            allow_files = True,
+        ),
+        "package_app": attr.label(
+            default = Label("//bazel_tools/packaging:package-app.sh"),
+            cfg = "host",
+            executable = True,
+            allow_files = True,
+        ),
+    }),
+    outputs = {
+        "out": "%{name}.tar.gz",
+    },
 )
 """Package a binary along with its dynamic library dependencies and data dependencies
   into a tarball. The data dependencies are placed in 'resources' directory.
diff --git a/bazel_tools/pkg.bzl b/bazel_tools/pkg.bzl
index e587e54b81..b6197e1b0c 100644
--- a/bazel_tools/pkg.bzl
+++ b/bazel_tools/pkg.bzl
@@ -262,4 +262,3 @@ def pkg_tar(**kwargs):
                       "Consider renaming it in your BUILD file.")
                 kwargs["srcs"] = kwargs.pop("files")
     _real_pkg_tar(**kwargs)
-
diff --git a/bazel_tools/pom_file.bzl b/bazel_tools/pom_file.bzl
index 327f0aa5cc..c25f92ed9b 100644
--- a/bazel_tools/pom_file.bzl
+++ b/bazel_tools/pom_file.bzl
@@ -98,17 +98,18 @@ def _collect_maven_info_impl(_target, ctx):
 
     deps = depset([], transitive = [depset([d]) for d in _maven_coordinates(deps + exports + jars)])
     filtered_deps = [
-        d for d in deps
-          if not (only_external_deps and (d.split(":")[0].startswith("com.daml") or
-                                          d.split(":")[0].startswith("com.digitalasset")))
+        d
+        for d in deps
+        if not (only_external_deps and (d.split(":")[0].startswith("com.daml") or
+                                        d.split(":")[0].startswith("com.digitalasset")))
     ]
 
     if maven_coordinates:
         return [
             MavenInfo(
                 maven_coordinates = maven_coordinates,
-                maven_dependencies = [] if fat_jar else filtered_deps
-            )
+                maven_dependencies = [] if fat_jar else filtered_deps,
+            ),
         ]
     else:
         return _EMPTY_MAVEN_INFO
@@ -152,7 +153,7 @@ def _pom_file(ctx):
     maven_coordinates = ctx.attr.target[MavenInfo].maven_coordinates.split(":")
     groupId = maven_coordinates[0]
     artifactId = maven_coordinates[1]
-    version= maven_coordinates[2]
+    version = maven_coordinates[2]
 
     formatted_deps = []
     for dep in [":".join(d) for d in sorted([d.split(":") for d in mvn_deps])]:
diff --git a/bazel_tools/proto.bzl b/bazel_tools/proto.bzl
index bb01b8d587..3d16fc2665 100644
--- a/bazel_tools/proto.bzl
+++ b/bazel_tools/proto.bzl
@@ -3,7 +3,6 @@
 
 load("//bazel_tools:pkg.bzl", "pkg_tar")
 
-
 # taken from rules_proto:
 # https://github.com/stackb/rules_proto/blob/f5d6eea6a4528bef3c1d3a44d486b51a214d61c2/compile.bzl#L369-L393
 def get_plugin_runfiles(tool, plugin_runfiles):
@@ -47,10 +46,10 @@ def _proto_gen_impl(ctx):
 
     args = []
     args += [
-        "--descriptor_set_in=" + descriptor_set_delim.join([d.path for d in descriptors])
+        "--descriptor_set_in=" + descriptor_set_delim.join([d.path for d in descriptors]),
     ]
     args += [
-        "--{}_out={}:{}".format(ctx.attr.plugin_name, ",".join(ctx.attr.plugin_options), sources_out.path)
+        "--{}_out={}:{}".format(ctx.attr.plugin_name, ",".join(ctx.attr.plugin_options), sources_out.path),
     ]
     plugins = []
     plugin_runfiles = []
@@ -58,7 +57,7 @@ def _proto_gen_impl(ctx):
         plugins = [ctx.executable.plugin_exec]
         plugin_runfiles = get_plugin_runfiles(ctx.attr.plugin_exec, ctx.attr.plugin_runfiles)
         args += [
-            "--plugin=protoc-gen-{}={}".format(ctx.attr.plugin_name, ctx.executable.plugin_exec.path)
+            "--plugin=protoc-gen-{}={}".format(ctx.attr.plugin_name, ctx.executable.plugin_exec.path),
         ]
 
     inputs = []
@@ -67,9 +66,10 @@ def _proto_gen_impl(ctx):
         src_root = src.proto.proto_source_root
         for direct_source in src.proto.direct_sources:
             path = ""
+
             # in some cases the paths of src_root and direct_source are only partially
             # overlapping. the following for loop finds the maximum overlap of these two paths
-            for i in range(len(src_root)+1):
+            for i in range(len(src_root) + 1):
                 if direct_source.path.startswith(src_root[-i:]):
                     path = direct_source.path[i:]
                 else:
@@ -89,10 +89,9 @@ def _proto_gen_impl(ctx):
         inputs = descriptors + [ctx.executable.protoc] + plugin_runfiles,
         command = "mkdir -p " + sources_out.path + " && " + ctx.executable.protoc.path + " " + " ".join(args),
         tools = plugins,
-        use_default_shell_env = True
+        use_default_shell_env = True,
     )
 
-
     # since we only have the output directory of the protoc compilation,
     # we need to find all the files below sources_out and add them to the zipper args file
     zipper_args_file = ctx.actions.declare_file(ctx.label.name + ".zipper_args")
@@ -101,11 +100,11 @@ def _proto_gen_impl(ctx):
         outputs = [zipper_args_file],
         inputs = [sources_out],
         command = "find -L {src_path} -type f | sed -E 's#^{src_path}/(.*)$#\\1={src_path}/\\1#' | sort > {args_file}".format(
-            src_path = sources_out.path, 
-            args_file = zipper_args_file.path
+            src_path = sources_out.path,
+            args_file = zipper_args_file.path,
         ),
         progress_message = "zipper_args_file %s" % zipper_args_file.path,
-        use_default_shell_env = True
+        use_default_shell_env = True,
     )
 
     # Call zipper to create srcjar
@@ -123,14 +122,13 @@ def _proto_gen_impl(ctx):
 
 proto_gen = rule(
     implementation = _proto_gen_impl,
-
-    attrs = { 
+    attrs = {
         "srcs": attr.label_list(allow_files = True),
         "deps": attr.label_list(providers = [ProtoInfo]),
         "plugin_name": attr.string(),
         "plugin_exec": attr.label(
             cfg = "host",
-            executable = True
+            executable = True,
         ),
         "plugin_options": attr.string_list(),
         "plugin_runfiles": attr.label_list(
@@ -151,12 +149,10 @@ proto_gen = rule(
         ),
     },
     outputs = {
-        "out" : "%{name}.srcjar"
+        "out": "%{name}.srcjar",
     },
-    output_to_genfiles = True
-    
-
+    output_to_genfiles = True,
 )
 
 def _is_windows(ctx):
-    return ctx.configuration.host_path_separator == ";"
\ No newline at end of file
+    return ctx.configuration.host_path_separator == ";"
diff --git a/bazel_tools/scala.bzl b/bazel_tools/scala.bzl
index 67ebaeef99..e5d6b20e56 100644
--- a/bazel_tools/scala.bzl
+++ b/bazel_tools/scala.bzl
@@ -2,21 +2,18 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '@io_bazel_rules_scala//scala:scala.bzl',
-  'scala_library',
-  'scala_macro_library',
-  'scala_binary',
-  'scala_test',
-  'scala_test_suite'
+    "@io_bazel_rules_scala//scala:scala.bzl",
+    "scala_binary",
+    "scala_library",
+    "scala_macro_library",
+    "scala_test",
+    "scala_test_suite",
 )
-
 load(
-  '@io_bazel_rules_scala//jmh:jmh.bzl',
-  'scala_benchmark_jmh'
+    "@io_bazel_rules_scala//jmh:jmh.bzl",
+    "scala_benchmark_jmh",
 )
-
 load("//bazel_tools:pom_file.bzl", "pom_file")
-
 load("@os_info//:os_info.bzl", "is_windows")
 
 # This file defines common Scala compiler flags and plugins used throughout
@@ -29,86 +26,86 @@ load("@os_info//:os_info.bzl", "is_windows")
 # `scala_*` from `rules_scala` in order for these default flags to take effect.
 
 common_scalacopts = [
-  # doesn't allow advance features of the language without explict import
-  # (higherkinds, implicits)
-  "-feature",
-  "-target:jvm-1.8",
-  "-encoding", "UTF-8",
-  # more detailed information about type-erasure related warnings
-  "-unchecked",
-  # warn if using deprecated stuff
-  "-deprecation",
-  "-Xfuture",
-  # better error reporting for pureconfig
-  "-Xmacro-settings:materialize-derivations",
-  "-Xfatal-warnings",
-  # adapted args is a deprecated feature:
-  # `def foo(a: (A, B))` can be called with `foo(a, b)`.
-  # properly it should be `foo((a,b))`
-  "-Yno-adapted-args",
-  "-Ywarn-dead-code",
-  # Warn about implicit conversion between numerical types
-  "-Ywarn-numeric-widen",
-  # Gives a warning for functions declared as returning Unit, but the body returns a value
-  "-Ywarn-value-discard",
-  "-Ywarn-unused-import"
-  # unfortunately give false warning for the `(a, b) = someTuple`
-  # line inside a for comprehension
-  # "-Ywarn-unused"
+    # doesn't allow advance features of the language without explict import
+    # (higherkinds, implicits)
+    "-feature",
+    "-target:jvm-1.8",
+    "-encoding",
+    "UTF-8",
+    # more detailed information about type-erasure related warnings
+    "-unchecked",
+    # warn if using deprecated stuff
+    "-deprecation",
+    "-Xfuture",
+    # better error reporting for pureconfig
+    "-Xmacro-settings:materialize-derivations",
+    "-Xfatal-warnings",
+    # adapted args is a deprecated feature:
+    # `def foo(a: (A, B))` can be called with `foo(a, b)`.
+    # properly it should be `foo((a,b))`
+    "-Yno-adapted-args",
+    "-Ywarn-dead-code",
+    # Warn about implicit conversion between numerical types
+    "-Ywarn-numeric-widen",
+    # Gives a warning for functions declared as returning Unit, but the body returns a value
+    "-Ywarn-value-discard",
+    "-Ywarn-unused-import",
+    # unfortunately give false warning for the `(a, b) = someTuple`
+    # line inside a for comprehension
+    # "-Ywarn-unused"
 ]
 
 plugin_deps = [
-  "//3rdparty/jvm/org/wartremover:wartremover",
+    "//3rdparty/jvm/org/wartremover:wartremover",
 ]
 
 common_plugins = [
-  "//external:jar/org/wartremover/wartremover_2_12",
+    "//external:jar/org/wartremover/wartremover_2_12",
 ]
 
 plugin_scalacopts = [
-  # do not enable wart remover for now, because we need to fix a lot of
-  # test code, which didn't have wart remover enabled before
-  "-Xplugin-require:wartremover",
+    # do not enable wart remover for now, because we need to fix a lot of
+    # test code, which didn't have wart remover enabled before
+    "-Xplugin-require:wartremover",
 
-  # This lists all wartremover linting passes.
-  # The list of enabled ones is pretty arbitrary, please ping Francesco for
-  # info
-
-  "-P:wartremover:traverser:org.wartremover.warts.Any",
-  "-P:wartremover:traverser:org.wartremover.warts.AnyVal",
-  "-P:wartremover:traverser:org.wartremover.warts.ArrayEquals",
-  # "-P:wartremover:traverser:org.wartremover.warts.AsInstanceOf",
-  # "-P:wartremover:traverser:org.wartremover.warts.DefaultArguments",
-  # "-P:wartremover:traverser:org.wartremover.warts.EitherProjectionPartial",
-  "-P:wartremover:traverser:org.wartremover.warts.Enumeration",
-  # "-P:wartremover:traverser:org.wartremover.warts.Equals",
-  "-P:wartremover:traverser:org.wartremover.warts.ExplicitImplicitTypes",
-  # "-P:wartremover:traverser:org.wartremover.warts.FinalCaseClass",
-  # "-P:wartremover:traverser:org.wartremover.warts.FinalVal",
-  # "-P:wartremover:traverser:org.wartremover.warts.ImplicitConversion",
-  # "-P:wartremover:traverser:org.wartremover.warts.ImplicitParameter",
-  # "-P:wartremover:traverser:org.wartremover.warts.IsInstanceOf",
-  "-P:wartremover:traverser:org.wartremover.warts.JavaSerializable",
-  "-P:wartremover:traverser:org.wartremover.warts.LeakingSealed",
-  # "-P:wartremover:traverser:org.wartremover.warts.MutableDataStructures",
-  # "-P:wartremover:traverser:org.wartremover.warts.NonUnitStatements",
-  # "-P:wartremover:traverser:org.wartremover.warts.Nothing",
-  # "-P:wartremover:traverser:org.wartremover.warts.Null",
-  "-P:wartremover:traverser:org.wartremover.warts.Option2Iterable",
-  # "-P:wartremover:traverser:org.wartremover.warts.OptionPartial",
-  # "-P:wartremover:traverser:org.wartremover.warts.Overloading",
-  "-P:wartremover:traverser:org.wartremover.warts.Product",
-  # "-P:wartremover:traverser:org.wartremover.warts.PublicInference",
-  # "-P:wartremover:traverser:org.wartremover.warts.Recursion",
-  # "-P:wartremover:traverser:org.wartremover.warts.Return",
-  "-P:wartremover:traverser:org.wartremover.warts.Serializable",
-  "-P:wartremover:traverser:org.wartremover.warts.StringPlusAny",
-  # "-P:wartremover:traverser:org.wartremover.warts.Throw",
-  # "-P:wartremover:traverser:org.wartremover.warts.ToString",
-  # "-P:wartremover:traverser:org.wartremover.warts.TraversableOps",
-  # "-P:wartremover:traverser:org.wartremover.warts.TryPartial",
-  # "-P:wartremover:traverser:org.wartremover.warts.Var",
-  # "-P:wartremover:traverser:org.wartremover.warts.While",
+    # This lists all wartremover linting passes.
+    # The list of enabled ones is pretty arbitrary, please ping Francesco for
+    # info
+    "-P:wartremover:traverser:org.wartremover.warts.Any",
+    "-P:wartremover:traverser:org.wartremover.warts.AnyVal",
+    "-P:wartremover:traverser:org.wartremover.warts.ArrayEquals",
+    # "-P:wartremover:traverser:org.wartremover.warts.AsInstanceOf",
+    # "-P:wartremover:traverser:org.wartremover.warts.DefaultArguments",
+    # "-P:wartremover:traverser:org.wartremover.warts.EitherProjectionPartial",
+    "-P:wartremover:traverser:org.wartremover.warts.Enumeration",
+    # "-P:wartremover:traverser:org.wartremover.warts.Equals",
+    "-P:wartremover:traverser:org.wartremover.warts.ExplicitImplicitTypes",
+    # "-P:wartremover:traverser:org.wartremover.warts.FinalCaseClass",
+    # "-P:wartremover:traverser:org.wartremover.warts.FinalVal",
+    # "-P:wartremover:traverser:org.wartremover.warts.ImplicitConversion",
+    # "-P:wartremover:traverser:org.wartremover.warts.ImplicitParameter",
+    # "-P:wartremover:traverser:org.wartremover.warts.IsInstanceOf",
+    "-P:wartremover:traverser:org.wartremover.warts.JavaSerializable",
+    "-P:wartremover:traverser:org.wartremover.warts.LeakingSealed",
+    # "-P:wartremover:traverser:org.wartremover.warts.MutableDataStructures",
+    # "-P:wartremover:traverser:org.wartremover.warts.NonUnitStatements",
+    # "-P:wartremover:traverser:org.wartremover.warts.Nothing",
+    # "-P:wartremover:traverser:org.wartremover.warts.Null",
+    "-P:wartremover:traverser:org.wartremover.warts.Option2Iterable",
+    # "-P:wartremover:traverser:org.wartremover.warts.OptionPartial",
+    # "-P:wartremover:traverser:org.wartremover.warts.Overloading",
+    "-P:wartremover:traverser:org.wartremover.warts.Product",
+    # "-P:wartremover:traverser:org.wartremover.warts.PublicInference",
+    # "-P:wartremover:traverser:org.wartremover.warts.Recursion",
+    # "-P:wartremover:traverser:org.wartremover.warts.Return",
+    "-P:wartremover:traverser:org.wartremover.warts.Serializable",
+    "-P:wartremover:traverser:org.wartremover.warts.StringPlusAny",
+    # "-P:wartremover:traverser:org.wartremover.warts.Throw",
+    # "-P:wartremover:traverser:org.wartremover.warts.ToString",
+    # "-P:wartremover:traverser:org.wartremover.warts.TraversableOps",
+    # "-P:wartremover:traverser:org.wartremover.warts.TryPartial",
+    # "-P:wartremover:traverser:org.wartremover.warts.Var",
+    # "-P:wartremover:traverser:org.wartremover.warts.While",
 ]
 
 # delete items from lf_scalacopts as they are restored to common_scalacopts and plugin_scalacopts
@@ -119,174 +116,172 @@ plugin_scalacopts = [
 # []
 # ^ means nothing to remove
 lf_scalacopts = [
-  "-Ywarn-unused",
+    "-Ywarn-unused",
 ]
 
 def _wrap_rule(rule, name = "", scalacopts = [], plugins = [], **kwargs):
-  rule(
-    name = name,
-    scalacopts = common_scalacopts + plugin_scalacopts + scalacopts,
-    plugins = common_plugins + plugins,
-    **kwargs
-  )
+    rule(
+        name = name,
+        scalacopts = common_scalacopts + plugin_scalacopts + scalacopts,
+        plugins = common_plugins + plugins,
+        **kwargs
+    )
 
 def _wrap_rule_no_plugins(rule, scalacopts = [], **kwargs):
-  rule(
-    scalacopts = common_scalacopts + scalacopts,
-    **kwargs
-  )
+    rule(
+        scalacopts = common_scalacopts + scalacopts,
+        **kwargs
+    )
 
 def _strip_path_upto(path, upto):
-  idx = path.find(upto)
-  if idx >= 0:
-    return [path[idx + len(upto):].strip("/")]
-  else:
-    return []
+    idx = path.find(upto)
+    if idx >= 0:
+        return [path[idx + len(upto):].strip("/")]
+    else:
+        return []
 
 def _scala_source_jar_impl(ctx):
-  zipper_args = [
-    "%s=%s" % (new_path, src.path)
-    for src in ctx.files.srcs
-    for new_path in _strip_path_upto(src.path, ctx.attr.strip_upto)
-  ]
-  zipper_args_file = ctx.actions.declare_file(
-    ctx.label.name + ".zipper_args")
+    zipper_args = [
+        "%s=%s" % (new_path, src.path)
+        for src in ctx.files.srcs
+        for new_path in _strip_path_upto(src.path, ctx.attr.strip_upto)
+    ]
+    zipper_args_file = ctx.actions.declare_file(
+        ctx.label.name + ".zipper_args",
+    )
 
-  manifest_file = ctx.actions.declare_file(
-    ctx.label.name + "_MANIFEST.MF",
-    sibling = zipper_args_file,
-  )
-  ctx.actions.write(manifest_file, "Manifest-Version: 1.0\n")
-  zipper_args += ["META-INF/MANIFEST.MF=" + manifest_file.path + "\n"]
+    manifest_file = ctx.actions.declare_file(
+        ctx.label.name + "_MANIFEST.MF",
+        sibling = zipper_args_file,
+    )
+    ctx.actions.write(manifest_file, "Manifest-Version: 1.0\n")
+    zipper_args += ["META-INF/MANIFEST.MF=" + manifest_file.path + "\n"]
 
-  ctx.actions.write(zipper_args_file, "\n".join(zipper_args))
+    ctx.actions.write(zipper_args_file, "\n".join(zipper_args))
 
-  ctx.actions.run(
-    executable = ctx.executable._zipper,
-    inputs = ctx.files.srcs + [manifest_file, zipper_args_file],
-    outputs = [ctx.outputs.out],
-    arguments = ["c", ctx.outputs.out.path, "@" + zipper_args_file.path],
-    mnemonic = "ScalaSourceJar",
-  )
+    ctx.actions.run(
+        executable = ctx.executable._zipper,
+        inputs = ctx.files.srcs + [manifest_file, zipper_args_file],
+        outputs = [ctx.outputs.out],
+        arguments = ["c", ctx.outputs.out.path, "@" + zipper_args_file.path],
+        mnemonic = "ScalaSourceJar",
+    )
 
 scala_source_jar = rule(
-  implementation = _scala_source_jar_impl,
-  attrs = {
-    "srcs": attr.label_list(allow_files = True),
+    implementation = _scala_source_jar_impl,
+    attrs = {
+        "srcs": attr.label_list(allow_files = True),
 
-    # The string to strip up to from source file paths.
-    # E.g. "main/scala" strips "foo/src/main/scala/com/daml/Foo.scala"
-    # to "com/daml/Foo.scala".
-    # Files not matching are not included in the source jar,
-    # so you may end up with empty source jars.
-    # TODO(JM): Add support for multiple options.
-    "strip_upto": attr.string(default = "main/scala"),
-
-    "_zipper": attr.label(
-      default = Label("@bazel_tools//tools/zip:zipper"),
-      cfg = "host",
-      executable = True,
-      allow_files = True,
-    ),
-  },
-  outputs = {
-    "out": "%{name}.jar",
-  },
+        # The string to strip up to from source file paths.
+        # E.g. "main/scala" strips "foo/src/main/scala/com/daml/Foo.scala"
+        # to "com/daml/Foo.scala".
+        # Files not matching are not included in the source jar,
+        # so you may end up with empty source jars.
+        # TODO(JM): Add support for multiple options.
+        "strip_upto": attr.string(default = "main/scala"),
+        "_zipper": attr.label(
+            default = Label("@bazel_tools//tools/zip:zipper"),
+            cfg = "host",
+            executable = True,
+            allow_files = True,
+        ),
+    },
+    outputs = {
+        "out": "%{name}.jar",
+    },
 )
 
 def _create_scala_source_jar(**kwargs):
-  # Try to not create empty source jars. We may still end up
-  # with them if the "strip_upto" does not match any of the
-  # paths.
-  if len(kwargs["srcs"]) > 0:
-    scala_source_jar(
-      name = kwargs["name"] + "_src",
-      srcs = kwargs["srcs"]
-    )
+    # Try to not create empty source jars. We may still end up
+    # with them if the "strip_upto" does not match any of the
+    # paths.
+    if len(kwargs["srcs"]) > 0:
+        scala_source_jar(
+            name = kwargs["name"] + "_src",
+            srcs = kwargs["srcs"],
+        )
 
 def da_scala_library(name, **kwargs):
-  """
-  Define a Scala library.
+    """
+    Define a Scala library.
 
-  Applies common Scala options defined in `bazel_tools/scala.bzl`.
-  And forwards to `scala_library` from `rules_scala`.
-  Refer to the [`rules_scala` documentation][rules_scala_docs].
+    Applies common Scala options defined in `bazel_tools/scala.bzl`.
+    And forwards to `scala_library` from `rules_scala`.
+    Refer to the [`rules_scala` documentation][rules_scala_docs].
 
-  [rules_scala_docs]: https://github.com/bazelbuild/rules_scala#scala_library
-  """
-  _wrap_rule(scala_library, name, **kwargs)
-  _create_scala_source_jar(**kwargs + {"name": name})
+    [rules_scala_docs]: https://github.com/bazelbuild/rules_scala#scala_library
+    """
+    _wrap_rule(scala_library, name, **kwargs)
+    _create_scala_source_jar(**(kwargs + {"name": name}))
 
-  if "tags" in kwargs:
-    for tag in kwargs["tags"]:
-      if tag.startswith("maven_coordinates="):
-        pom_file(
-            name = name + "_pom",
-            target = ":" + name,
-        )
-        break
+    if "tags" in kwargs:
+        for tag in kwargs["tags"]:
+            if tag.startswith("maven_coordinates="):
+                pom_file(
+                    name = name + "_pom",
+                    target = ":" + name,
+                )
+                break
 
 def da_scala_macro_library(**kwargs):
-  """
-  Define a Scala library that contains macros.
+    """
+    Define a Scala library that contains macros.
 
-  Applies common Scala options defined in `bazel_tools/scala.bzl`.
-  And forwards to `scala_macro_library` from `rules_scala`.
-  Refer to the [`rules_scala` documentation][rules_scala_docs].
+    Applies common Scala options defined in `bazel_tools/scala.bzl`.
+    And forwards to `scala_macro_library` from `rules_scala`.
+    Refer to the [`rules_scala` documentation][rules_scala_docs].
 
-  [rules_scala_docs]: https://github.com/bazelbuild/rules_scala#scala_library
-  """
-  _wrap_rule(scala_macro_library, **kwargs)
-  _create_scala_source_jar(**kwargs)
+    [rules_scala_docs]: https://github.com/bazelbuild/rules_scala#scala_library
+    """
+    _wrap_rule(scala_macro_library, **kwargs)
+    _create_scala_source_jar(**kwargs)
 
 def da_scala_binary(name, **kwargs):
-  """
-  Define a Scala executable.
+    """
+    Define a Scala executable.
 
-  Applies common Scala options defined in `bazel_tools/scala.bzl`.
-  And forwards to `scala_binary` from `rules_scala`.
-  Refer to the [`rules_scala` documentation][rules_scala_docs].
+    Applies common Scala options defined in `bazel_tools/scala.bzl`.
+    And forwards to `scala_binary` from `rules_scala`.
+    Refer to the [`rules_scala` documentation][rules_scala_docs].
 
-  [rules_scala_docs]: https://github.com/bazelbuild/rules_scala#scala_binary
-  """
-  _wrap_rule(scala_binary, name, **kwargs)
+    [rules_scala_docs]: https://github.com/bazelbuild/rules_scala#scala_binary
+    """
+    _wrap_rule(scala_binary, name, **kwargs)
 
-  if "tags" in kwargs:
-    for tag in kwargs["tags"]:
-      if tag.startswith("maven_coordinates="):
-        pom_file(
-            name = name + "_pom",
-            target = ":" + name,
-        )
-        break
+    if "tags" in kwargs:
+        for tag in kwargs["tags"]:
+            if tag.startswith("maven_coordinates="):
+                pom_file(
+                    name = name + "_pom",
+                    target = ":" + name,
+                )
+                break
 
 def da_scala_test(**kwargs):
-  """
-  Define a Scala executable that runs the unit tests in the given source files.
+    """
+    Define a Scala executable that runs the unit tests in the given source files.
 
-  Applies common Scala options defined in `bazel_tools/scala.bzl`.
-  And forwards to `scala_test` from `rules_scala`.
-  Refer to the [`rules_scala` documentation][rules_scala_docs].
+    Applies common Scala options defined in `bazel_tools/scala.bzl`.
+    And forwards to `scala_test` from `rules_scala`.
+    Refer to the [`rules_scala` documentation][rules_scala_docs].
 
-  [rules_scala_docs]: https://github.com/bazelbuild/rules_scala#scala_test
-  """
-  _wrap_rule(scala_test, **kwargs)
+    [rules_scala_docs]: https://github.com/bazelbuild/rules_scala#scala_test
+    """
+    _wrap_rule(scala_test, **kwargs)
 
 def da_scala_test_suite(**kwargs):
-  """
-  Define a Scala test executable for each source file and bundle them into one target.
+    """
+    Define a Scala test executable for each source file and bundle them into one target.
 
-  Applies common Scala options defined in `bazel_tools/scala.bzl`.
-  And forwards to `scala_test_suite` from `rules_scala`.
-  Refer to the [`rules_scala` documentation][rules_scala_docs].
-
-  [rules_scala_docs]: https://github.com/bazelbuild/rules_scala#scala_test_suite
-  """
-  _wrap_rule(scala_test_suite, use_short_names = is_windows, **kwargs)
+    Applies common Scala options defined in `bazel_tools/scala.bzl`.
+    And forwards to `scala_test_suite` from `rules_scala`.
+    Refer to the [`rules_scala` documentation][rules_scala_docs].
 
+    [rules_scala_docs]: https://github.com/bazelbuild/rules_scala#scala_test_suite
+    """
+    _wrap_rule(scala_test_suite, use_short_names = is_windows, **kwargs)
 
 # TODO make the jmh rule work with plugins -- probably
 # just a matter of passing the flag in
 def da_scala_benchmark_jmh(**kwargs):
-  _wrap_rule_no_plugins(scala_benchmark_jmh, **kwargs)
-
+    _wrap_rule_no_plugins(scala_benchmark_jmh, **kwargs)
diff --git a/compiler/daml-lf-ast/BUILD.bazel b/compiler/daml-lf-ast/BUILD.bazel
index 48d51f32bb..06e04a7f26 100644
--- a/compiler/daml-lf-ast/BUILD.bazel
+++ b/compiler/daml-lf-ast/BUILD.bazel
@@ -1,31 +1,31 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load ("//bazel_tools:haskell.bzl", "da_haskell_library")
+load("//bazel_tools:haskell.bzl", "da_haskell_library")
 
-da_haskell_library (
-    name = "daml-lf-ast"
-  , src_strip_prefix = "src"
-  , srcs = glob (["src/**/*.hs"])
-  , deps = [
-      "//libs-haskell/da-hs-pretty"
-    , "//libs-haskell/da-hs-base"
-  ]
-  , hazel_deps = [
-      "aeson",
-      "base",
-      "containers",
-      "deepseq",
-      "extra",
-      "lens",
-      "mtl",
-      "recursion-schemes",
-      "safe",
-      "scientific",
-      "tagged",
-      "text",
-      "time",
-      "unordered-containers",
-  ]
-  , visibility = ["//visibility:public"]
+da_haskell_library(
+    name = "daml-lf-ast",
+    srcs = glob(["src/**/*.hs"]),
+    hazel_deps = [
+        "aeson",
+        "base",
+        "containers",
+        "deepseq",
+        "extra",
+        "lens",
+        "mtl",
+        "recursion-schemes",
+        "safe",
+        "scientific",
+        "tagged",
+        "text",
+        "time",
+        "unordered-containers",
+    ],
+    src_strip_prefix = "src",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//libs-haskell/da-hs-base",
+        "//libs-haskell/da-hs-pretty",
+    ],
 )
diff --git a/compiler/daml-lf-proto/BUILD.bazel b/compiler/daml-lf-proto/BUILD.bazel
index a05dbf4996..96a4a530a8 100644
--- a/compiler/daml-lf-proto/BUILD.bazel
+++ b/compiler/daml-lf-proto/BUILD.bazel
@@ -1,20 +1,12 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load ("//bazel_tools:haskell.bzl", "da_haskell_library")
+load("//bazel_tools:haskell.bzl", "da_haskell_library")
 
-da_haskell_library (
+da_haskell_library(
     name = "daml-lf-proto",
-    src_strip_prefix = "src",
-    srcs = glob (["src/**/*.hs"]),
+    srcs = glob(["src/**/*.hs"]),
     extra_srcs = ["//daml-lf/archive:da/daml_lf_dev.proto"],
-    deps = [
-        "//compiler/daml-lf-ast",
-        "//libs-haskell/da-hs-base",
-        "//libs-haskell/da-hs-pretty",
-        "//daml-lf/archive:daml_lf_haskell_proto",
-        "//nix/third-party/proto3-suite:proto3-suite",
-    ],
     hazel_deps = [
         "base",
         "bytestring",
@@ -28,5 +20,13 @@ da_haskell_library (
         "text",
         "vector",
     ],
+    src_strip_prefix = "src",
     visibility = ["//visibility:public"],
+    deps = [
+        "//compiler/daml-lf-ast",
+        "//daml-lf/archive:daml_lf_haskell_proto",
+        "//libs-haskell/da-hs-base",
+        "//libs-haskell/da-hs-pretty",
+        "//nix/third-party/proto3-suite",
+    ],
 )
diff --git a/compiler/daml-lf-tools/BUILD.bazel b/compiler/daml-lf-tools/BUILD.bazel
index 81bf4e9cb3..c7161cab9d 100644
--- a/compiler/daml-lf-tools/BUILD.bazel
+++ b/compiler/daml-lf-tools/BUILD.bazel
@@ -1,17 +1,11 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load ("//bazel_tools:haskell.bzl", "da_haskell_library")
+load("//bazel_tools:haskell.bzl", "da_haskell_library")
 
-da_haskell_library (
+da_haskell_library(
     name = "daml-lf-tools",
-    src_strip_prefix = "src",
-    srcs = glob (["src/**/*.hs"]),
-    deps = [
-        "//libs-haskell/da-hs-pretty",
-        "//libs-haskell/da-hs-base",
-        "//compiler/daml-lf-ast",
-    ],
+    srcs = glob(["src/**/*.hs"]),
     hazel_deps = [
         "base",
         "containers",
@@ -26,5 +20,11 @@ da_haskell_library (
         "uniplate",
         "unordered-containers",
     ],
+    src_strip_prefix = "src",
     visibility = ["//visibility:public"],
+    deps = [
+        "//compiler/daml-lf-ast",
+        "//libs-haskell/da-hs-base",
+        "//libs-haskell/da-hs-pretty",
+    ],
 )
diff --git a/compiler/haskell-ide-core/BUILD.bazel b/compiler/haskell-ide-core/BUILD.bazel
index 1d507042b9..65111e39cd 100644
--- a/compiler/haskell-ide-core/BUILD.bazel
+++ b/compiler/haskell-ide-core/BUILD.bazel
@@ -4,38 +4,38 @@
 load("//bazel_tools:haskell.bzl", "da_haskell_library")
 
 da_haskell_library(
-    name = "haskell-ide-core"
-  , srcs = glob(["src/**/*.hs"])
-  , src_strip_prefix = "src"
-  , deps = [
-      "//libs-haskell/prettyprinter-syntax",
-  ]
-  , hazel_deps = [
-      "aeson",
-      "base",
-      "binary",
-      "bytestring",
-      "containers",
-      "deepseq",
-      "directory",
-      "either",
-      "extra",
-      "filepath",
-      "ghc-lib",
-      "ghc-lib-parser",
-      "hashable",
-      "mtl",
-      "pretty",
-      "safe-exceptions",
-      "shake",
-      "stm",
-      "syb",
-      "text",
-      "time",
-      "transformers",
-      "uniplate",
-      "unordered-containers",
-      "uri-encode",
-  ]
-  , visibility = ["//visibility:public"]
+    name = "haskell-ide-core",
+    srcs = glob(["src/**/*.hs"]),
+    hazel_deps = [
+        "aeson",
+        "base",
+        "binary",
+        "bytestring",
+        "containers",
+        "deepseq",
+        "directory",
+        "either",
+        "extra",
+        "filepath",
+        "ghc-lib",
+        "ghc-lib-parser",
+        "hashable",
+        "mtl",
+        "pretty",
+        "safe-exceptions",
+        "shake",
+        "stm",
+        "syb",
+        "text",
+        "time",
+        "transformers",
+        "uniplate",
+        "unordered-containers",
+        "uri-encode",
+    ],
+    src_strip_prefix = "src",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//libs-haskell/prettyprinter-syntax",
+    ],
 )
diff --git a/compiler/scenario-service/client/BUILD.bazel b/compiler/scenario-service/client/BUILD.bazel
index 18c2fb2d4c..815b025b49 100644
--- a/compiler/scenario-service/client/BUILD.bazel
+++ b/compiler/scenario-service/client/BUILD.bazel
@@ -4,51 +4,49 @@
 load("//bazel_tools:haskell.bzl", "da_haskell_library")
 
 da_haskell_library(
-  name = "client",
-  srcs = glob(["src/**/*.hs"]),
-  src_strip_prefix = "src",
-  deps = [
-    "//libs-haskell/da-hs-base",
-    "//libs-haskell/da-hs-pretty",
-    "//libs-haskell/bazel-runfiles",
-    "//compiler/daml-lf-ast",
-    "//compiler/daml-lf-proto",
-    "//compiler/scenario-service/protos:scenario_service_haskell_proto",
-    "//nix/third-party/proto3-suite:proto3-suite",
-    "//nix/third-party/proto3-wire:proto3-wire",
-    "//nix/third-party/gRPC-haskell:grpc-haskell",
-    "//nix/third-party/gRPC-haskell/core:grpc-haskell-core",
-  ],
-  hazel_deps = [
-    "async",
-    "base",
-    "blaze-html",
-    "binary",
-    "bytestring",
-    "conduit",
-    "conduit-extra",
-    "containers",
-    "cryptonite",
-    "deepseq",
-    "directory",
-    "extra",
-    "filepath",
-    "hashable",
-    "lens",
-    "managed",
-    "mtl",
-    "process",
-    "split",
-    "stm",
-    "system-filepath",
-    "tagged",
-    "text",
-    "time",
-    "transformers",
-    "uri-encode",
-    "vector",
-  ],
-  visibility = ['//visibility:public'],
+    name = "client",
+    srcs = glob(["src/**/*.hs"]),
+    hazel_deps = [
+        "async",
+        "base",
+        "blaze-html",
+        "binary",
+        "bytestring",
+        "conduit",
+        "conduit-extra",
+        "containers",
+        "cryptonite",
+        "deepseq",
+        "directory",
+        "extra",
+        "filepath",
+        "hashable",
+        "lens",
+        "managed",
+        "mtl",
+        "process",
+        "split",
+        "stm",
+        "system-filepath",
+        "tagged",
+        "text",
+        "time",
+        "transformers",
+        "uri-encode",
+        "vector",
+    ],
+    src_strip_prefix = "src",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//compiler/daml-lf-ast",
+        "//compiler/daml-lf-proto",
+        "//compiler/scenario-service/protos:scenario_service_haskell_proto",
+        "//libs-haskell/bazel-runfiles",
+        "//libs-haskell/da-hs-base",
+        "//libs-haskell/da-hs-pretty",
+        "//nix/third-party/gRPC-haskell:grpc-haskell",
+        "//nix/third-party/gRPC-haskell/core:grpc-haskell-core",
+        "//nix/third-party/proto3-suite",
+        "//nix/third-party/proto3-wire",
+    ],
 )
-
-
diff --git a/compiler/scenario-service/protos/BUILD.bazel b/compiler/scenario-service/protos/BUILD.bazel
index cbb81253dc..84a826a935 100644
--- a/compiler/scenario-service/protos/BUILD.bazel
+++ b/compiler/scenario-service/protos/BUILD.bazel
@@ -5,27 +5,25 @@ load("//bazel_tools:haskell.bzl", "da_haskell_library", "da_haskell_test")
 load("//bazel_tools:proto.bzl", "proto_gen")
 
 proto_library(
-  name = "scenario_service_proto",
-  srcs = ["scenario_service.proto"],
-  deps = [],
-  visibility = ["//visibility:public"]
-)
-
-
-
-proto_gen(
-  name = "scenario_service_java_proto_src",
-  srcs = [":scenario_service_proto"],
-  plugin_name = "java",
-  visibility = ["//visibility:public"]
+    name = "scenario_service_proto",
+    srcs = ["scenario_service.proto"],
+    visibility = ["//visibility:public"],
+    deps = [],
 )
 
 proto_gen(
-  name = "scenario_service_java_proto_grpc_src",
-  srcs = [":scenario_service_proto"],
-  plugin_name = "java-grpc",
-  plugin_exec = "@io_grpc_grpc_java//compiler:grpc_java_plugin",
-  visibility = ["//visibility:public"]
+    name = "scenario_service_java_proto_src",
+    srcs = [":scenario_service_proto"],
+    plugin_name = "java",
+    visibility = ["//visibility:public"],
+)
+
+proto_gen(
+    name = "scenario_service_java_proto_grpc_src",
+    srcs = [":scenario_service_proto"],
+    plugin_exec = "@io_grpc_grpc_java//compiler:grpc_java_plugin",
+    plugin_name = "java-grpc",
+    visibility = ["//visibility:public"],
 )
 
 # FIXME(JM): java_grpc_library should do this for us,
@@ -33,50 +31,52 @@ proto_gen(
 # makes sense to mix the //3rdparty dependencies with
 # the stuff it pulls in...
 java_library(
-  name = "scenario_service_java_proto",
-  srcs = [":scenario_service_java_proto_src", ":scenario_service_java_proto_grpc_src"],
-  deps = [
-    "//3rdparty/jvm/com/google/protobuf:protobuf_java",
-    "//3rdparty/jvm/io/grpc:grpc_protobuf",
-    "//3rdparty/jvm/io/grpc:grpc_core",
-    "//3rdparty/jvm/io/grpc:grpc_stub",
-  ],
-  visibility = ["//visibility:public"]
+    name = "scenario_service_java_proto",
+    srcs = [
+        ":scenario_service_java_proto_grpc_src",
+        ":scenario_service_java_proto_src",
+    ],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+        "//3rdparty/jvm/io/grpc:grpc_core",
+        "//3rdparty/jvm/io/grpc:grpc_protobuf",
+        "//3rdparty/jvm/io/grpc:grpc_stub",
+    ],
 )
 
 # FIXME(JM): Modify compile-proto-file to allow specifying
 # the output file and module name rather than directory.
 genrule(
-  name = "scenario_service_haskell_proto_src",
-  outs = ["ScenarioService.hs"],
-  srcs = ["scenario_service.proto"],
-  tools = [
-    "//nix/third-party/proto3-suite:compile-proto-file"
-  ],
-  cmd = """
+    name = "scenario_service_haskell_proto_src",
+    srcs = ["scenario_service.proto"],
+    outs = ["ScenarioService.hs"],
+    cmd = """
     ORIGPWD=$$PWD
     cd compiler/scenario-service/protos
     $$ORIGPWD/$(location //nix/third-party/proto3-suite:compile-proto-file) \
       --proto scenario_service.proto --out "$$ORIGPWD/$(@D)"
-  """
+  """,
+    tools = [
+        "//nix/third-party/proto3-suite:compile-proto-file",
+    ],
 )
 
 da_haskell_library(
-  name = "scenario_service_haskell_proto",
-  srcs = [":scenario_service_haskell_proto_src"],
-  deps = [
-    "//nix/third-party/proto3-suite:proto3-suite",
-    "//nix/third-party/proto3-wire:proto3-wire",
-    "//nix/third-party/gRPC-haskell:grpc-haskell",
-    "//nix/third-party/gRPC-haskell/core:grpc-haskell-core",
-  ],
-  hazel_deps = [
-    "base",
-    "bytestring",
-    "deepseq",
-    "text",
-    "vector",
-  ],
-  visibility = ["//visibility:public"]
+    name = "scenario_service_haskell_proto",
+    srcs = [":scenario_service_haskell_proto_src"],
+    hazel_deps = [
+        "base",
+        "bytestring",
+        "deepseq",
+        "text",
+        "vector",
+    ],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//nix/third-party/gRPC-haskell:grpc-haskell",
+        "//nix/third-party/gRPC-haskell/core:grpc-haskell-core",
+        "//nix/third-party/proto3-suite",
+        "//nix/third-party/proto3-wire",
+    ],
 )
-
diff --git a/compiler/scenario-service/server/BUILD.bazel b/compiler/scenario-service/server/BUILD.bazel
index 7b28aba8a0..68be1c9222 100644
--- a/compiler/scenario-service/server/BUILD.bazel
+++ b/compiler/scenario-service/server/BUILD.bazel
@@ -2,40 +2,38 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//bazel_tools:scala.bzl",
-  "da_scala_library",
-  "da_scala_binary",
-  "da_scala_test_suite",
+    "//bazel_tools:scala.bzl",
+    "da_scala_binary",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
 
 genrule(
-  name = "scenario_service_jar",
-  srcs = [":scenario-service-raw_deploy.jar"],
-  outs = ["scenario-service.jar"],
-  cmd = "cp $< $@",
-  visibility = ['//visibility:public']
+    name = "scenario_service_jar",
+    srcs = [":scenario-service-raw_deploy.jar"],
+    outs = ["scenario-service.jar"],
+    cmd = "cp $< $@",
+    visibility = ["//visibility:public"],
 )
 
 da_scala_binary(
-  name = "scenario-service-raw",
-  srcs = glob(["src/main/scala/**/*.scala"]),
-  main_class = "com.digitalasset.daml.lf.scenario.ScenarioServiceMain",
-  deps = [
-    "//compiler/scenario-service/protos:scenario_service_java_proto",
-
-    "//daml-lf/archive:daml_lf_java_proto",
-    "//daml-lf/archive:daml_lf_archive_scala",
-    "//daml-lf/data",
-    "//daml-lf/transaction",
-    "//daml-lf/lfpackage",
-    "//daml-lf/interpreter",
-    "//daml-lf/validation",
-    "//daml-lf/scenario-interpreter",
-    "//3rdparty/jvm/io/grpc:grpc_protobuf",
-    "//3rdparty/jvm/io/grpc:grpc_netty",
-    "//3rdparty/jvm/io/grpc:grpc_core",
-    "//3rdparty/jvm/io/grpc:grpc_stub",
-    "//3rdparty/jvm/org/scalaz:scalaz_core",
-  ],
+    name = "scenario-service-raw",
+    srcs = glob(["src/main/scala/**/*.scala"]),
+    main_class = "com.digitalasset.daml.lf.scenario.ScenarioServiceMain",
+    deps = [
+        "//3rdparty/jvm/io/grpc:grpc_core",
+        "//3rdparty/jvm/io/grpc:grpc_netty",
+        "//3rdparty/jvm/io/grpc:grpc_protobuf",
+        "//3rdparty/jvm/io/grpc:grpc_stub",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//compiler/scenario-service/protos:scenario_service_java_proto",
+        "//daml-lf/archive:daml_lf_archive_scala",
+        "//daml-lf/archive:daml_lf_java_proto",
+        "//daml-lf/data",
+        "//daml-lf/interpreter",
+        "//daml-lf/lfpackage",
+        "//daml-lf/scenario-interpreter",
+        "//daml-lf/transaction",
+        "//daml-lf/validation",
+    ],
 )
-
diff --git a/da-assistant/BUILD.bazel b/da-assistant/BUILD.bazel
index 9d5520963f..1c53ff6b52 100644
--- a/da-assistant/BUILD.bazel
+++ b/da-assistant/BUILD.bazel
@@ -1,100 +1,162 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load('//bazel_tools:haskell.bzl', 'da_haskell_binary', 'da_haskell_test')
-load ("//bazel_tools:packaging/packaging.bzl", "package_app")
+load("//bazel_tools:haskell.bzl", "da_haskell_binary", "da_haskell_test")
+load("//bazel_tools:packaging/packaging.bzl", "package_app")
 load("@ai_formation_hazel//:hazel.bzl", "hazel_binary")
 
-da_cli_version = '114-7582c1a0bd'
+da_cli_version = "114-7582c1a0bd"
+
 da_cli_version_flag = '-DDA_CLI_VERSION="%s"' % da_cli_version
 
 da_cli_hazel_deps = [
-    'aeson', 'aeson-extra', 'attoparsec',
-    'base', 'bytestring', 'conduit', 'conduit-extra',
-    'containers', 'cryptohash', 'directory', 'either',
-    'exceptions', 'extra', 'filepath', 'foldl', 'hashable',
-    'haskeline', 'http-api-data', 'http-client', 'http-client-tls',
-    'http-conduit', 'http-media', 'http-types', 'lens',
-    'lifted-base', 'monad-control', 'monad-logger',
-    'mtl', 'multimap', 'network', 'natural-sort',
-    'optparse-applicative', 'pipes-bytestring', 'pipes-http',
-    'pipes', 'pretty-simple', 'prettyprinter', 'process',
-    'safe-exceptions', 'safe', 'servant', 'servant-client',
-    'servant-client-core', 'servant-server', 'split', 'sqlite-simple',
-    'system-filepath', 'tar-conduit', 'tasty', 'tasty-hunit',
-    'temporary', 'terminal-size', 'text', 'these',
-    'tagged', 'time', 'transformers', 'transformers-base',
-    'random', 'QuickCheck', 'turtle', 'unix', 'unix-compat',
-    'unordered-containers', 'uri-encode', 'utf8-string', 'vector',
-    'warp', 'yaml',
+    "aeson",
+    "aeson-extra",
+    "attoparsec",
+    "base",
+    "bytestring",
+    "conduit",
+    "conduit-extra",
+    "containers",
+    "cryptohash",
+    "directory",
+    "either",
+    "exceptions",
+    "extra",
+    "filepath",
+    "foldl",
+    "hashable",
+    "haskeline",
+    "http-api-data",
+    "http-client",
+    "http-client-tls",
+    "http-conduit",
+    "http-media",
+    "http-types",
+    "lens",
+    "lifted-base",
+    "monad-control",
+    "monad-logger",
+    "mtl",
+    "multimap",
+    "network",
+    "natural-sort",
+    "optparse-applicative",
+    "pipes-bytestring",
+    "pipes-http",
+    "pipes",
+    "pretty-simple",
+    "prettyprinter",
+    "process",
+    "safe-exceptions",
+    "safe",
+    "servant",
+    "servant-client",
+    "servant-client-core",
+    "servant-server",
+    "split",
+    "sqlite-simple",
+    "system-filepath",
+    "tar-conduit",
+    "tasty",
+    "tasty-hunit",
+    "temporary",
+    "terminal-size",
+    "text",
+    "these",
+    "tagged",
+    "time",
+    "transformers",
+    "transformers-base",
+    "random",
+    "QuickCheck",
+    "turtle",
+    "unix",
+    "unix-compat",
+    "unordered-containers",
+    "uri-encode",
+    "utf8-string",
+    "vector",
+    "warp",
+    "yaml",
 ]
 
-da_haskell_binary (
-    name = 'da'
-    , srcs = native.glob(
-        [ 'DA/**/*.hs'
-        , 'Data/**/*.hs'
-        , 'apps/Main.hs'
-        ]
-    )
-    , main_function = "DA.Sdk.Cli.main"
-    , deps = [ "//libs-haskell/da-hs-base" ]
-    , compiler_flags = [da_cli_version_flag]
-    , hazel_deps = da_cli_hazel_deps
-    , visibility = ["//visibility:public"]
+da_haskell_binary(
+    name = "da",
+    srcs = native.glob(
+        [
+            "DA/**/*.hs",
+            "Data/**/*.hs",
+            "apps/Main.hs",
+        ],
+    ),
+    compiler_flags = [da_cli_version_flag],
+    hazel_deps = da_cli_hazel_deps,
+    main_function = "DA.Sdk.Cli.main",
+    visibility = ["//visibility:public"],
+    deps = ["//libs-haskell/da-hs-base"],
 )
 
 native.genrule(
-    name = 'version_file',
-    outs = ['VERSION'],
-    cmd = "echo -n " + da_cli_version + " > $(OUTS)"
+    name = "version_file",
+    outs = ["VERSION"],
+    cmd = "echo -n " + da_cli_version + " > $(OUTS)",
 )
 
 # Rule to package the DA application along with its dynamic libraries
-dist_name = 'dist'
+dist_name = "dist"
+
 package_app(
     name = dist_name,
-    binary = ':da',
-    visibility = ["//visibility:public"]
+    binary = ":da",
+    visibility = ["//visibility:public"],
 )
 
 installer_name = "installer.run"
+
 native.genrule(
     name = "installer_run",
     outs = [installer_name],
     visibility = ["//visibility:public"],
-    srcs = [dist_name + ".tar.gz", "setup.sh"],
+    srcs = [
+        dist_name + ".tar.gz",
+        "setup.sh",
+    ],
     tools = [hazel_binary("arx")],
-    cmd = "$(location " + hazel_binary("arx") + ") tmpx -o ./$(location " + installer_name + ") ./$(location " + dist_name + ".tar.gz ) -e ./$(location setup.sh)"
+    cmd = "$(location " + hazel_binary("arx") + ") tmpx -o ./$(location " + installer_name + ") ./$(location " + dist_name + ".tar.gz ) -e ./$(location setup.sh)",
 )
 
 exports_files(
-  srcs = ['setup.sh'],
-  visibility = ["//visibility:public"]
+    srcs = ["setup.sh"],
+    visibility = ["//visibility:public"],
 )
 
 da_haskell_test(
-    name = 'test',
+    name = "test",
     srcs = glob(
-        [ 'DA/**/*.hs'
-        , 'Data/**/*.hs'
-        , 'apps/Test.hs'
-        ]),
-    deps = ['//libs-haskell/da-hs-base:da-hs-base'],
+        [
+            "DA/**/*.hs",
+            "Data/**/*.hs",
+            "apps/Test.hs",
+        ],
+    ),
     compiler_flags = [da_cli_version_flag],
     hazel_deps = da_cli_hazel_deps,
     visibility = ["//visibility:public"],
+    deps = ["//libs-haskell/da-hs-base"],
 )
 
 da_haskell_binary(
-    name = 'mockserver-binary',
+    name = "mockserver-binary",
     srcs = glob(
-        [ 'DA/**/*.hs'
-        , 'Data/**/*.hs'
-        , 'apps/Mockserver.hs'
-        ]),
-    deps = ['//libs-haskell/da-hs-base:da-hs-base'],
+        [
+            "DA/**/*.hs",
+            "Data/**/*.hs",
+            "apps/Mockserver.hs",
+        ],
+    ),
     compiler_flags = [da_cli_version_flag],
     hazel_deps = da_cli_hazel_deps,
     visibility = ["//visibility:public"],
+    deps = ["//libs-haskell/da-hs-base"],
 )
diff --git a/daml-assistant/BUILD.bazel b/daml-assistant/BUILD.bazel
index 80998f03e3..564b4fc5ad 100644
--- a/daml-assistant/BUILD.bazel
+++ b/daml-assistant/BUILD.bazel
@@ -1,16 +1,14 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load('//bazel_tools:haskell.bzl', 'da_haskell_binary', 'da_haskell_library', 'da_haskell_test')
-load('//bazel_tools:packaging/packaging.bzl', 'package_app')
+load("//bazel_tools:haskell.bzl", "da_haskell_binary", "da_haskell_library", "da_haskell_test")
+load("//bazel_tools:packaging/packaging.bzl", "package_app")
 
 # This library is intended to be used by applications called by the assistant,
 # e.g., damlc, to get the names of the various environment variables set by the assistant.
 da_haskell_library(
-    name = 'daml-project-config',
-    srcs = native.glob(['daml-project-config/**/*.hs']),
-    src_strip_prefix = 'daml-project-config',
-    deps = [],
+    name = "daml-project-config",
+    srcs = native.glob(["daml-project-config/**/*.hs"]),
     hazel_deps = [
         "base",
         "directory",
@@ -22,49 +20,51 @@ da_haskell_library(
         "text",
         "yaml",
     ],
-    visibility = ["//visibility:public"]
+    src_strip_prefix = "daml-project-config",
+    visibility = ["//visibility:public"],
+    deps = [],
 )
 
 # TODO Factor shared code between the binary and the test suite into a library
 # instead of compiling it twice.
 
-da_haskell_binary (
-    name = 'daml',
-    src_strip_prefix = "src",
-    srcs = native.glob(['src/**/*.hs']),
-    main_function = "DAML.Assistant.main",
-    deps = [
-        "//libs-haskell/da-hs-base",
-        ":daml-project-config",
-    ],
+da_haskell_binary(
+    name = "daml",
+    srcs = native.glob(["src/**/*.hs"]),
     hazel_deps = [
-        'base',
-        'bytestring',
-        'conduit',
-        'conduit-extra',
-        'directory',
-        'extra',
-        'filepath',
-        'http-conduit',
-        'lens',
-        'main-tester',
-        'optparse-applicative',
-        'process',
-        'safe',
-        'safe-exceptions',
-        'semver',
-        'tar-conduit',
-        'tasty',
-        'tasty-hunit',
-        'tasty-quickcheck',
-        'temporary',
-        'terminal-progress-bar',
-        'text',
-        'unix-compat',
-        'utf8-string',
-        'yaml',
+        "base",
+        "bytestring",
+        "conduit",
+        "conduit-extra",
+        "directory",
+        "extra",
+        "filepath",
+        "http-conduit",
+        "lens",
+        "main-tester",
+        "optparse-applicative",
+        "process",
+        "safe",
+        "safe-exceptions",
+        "semver",
+        "tar-conduit",
+        "tasty",
+        "tasty-hunit",
+        "tasty-quickcheck",
+        "temporary",
+        "terminal-progress-bar",
+        "text",
+        "unix-compat",
+        "utf8-string",
+        "yaml",
     ],
+    main_function = "DAML.Assistant.main",
+    src_strip_prefix = "src",
     visibility = ["//visibility:public"],
+    deps = [
+        ":daml-project-config",
+        "//libs-haskell/da-hs-base",
+    ],
 )
 
 package_app(
@@ -74,41 +74,41 @@ package_app(
 )
 
 da_haskell_test(
-    name = 'test',
-    srcs = native.glob(['src/**/*.hs']),
-    main_function = "DAML.Assistant.runTests",
-    deps = [
-        "//libs-haskell/da-hs-base",
-        ":daml-project-config",
-    ],
+    name = "test",
+    srcs = native.glob(["src/**/*.hs"]),
     hazel_deps = [
-        'base',
-        'bytestring',
-        'conduit',
-        'conduit-extra',
-        'directory',
-        'extra',
-        'filepath',
-        'http-conduit',
-        'lens',
-        'main-tester',
-        'optparse-applicative',
-        'process',
-        'safe',
-        'safe-exceptions',
-        'semver',
-        'tar-conduit',
-        'tasty',
-        'tasty-hunit',
-        'tasty-quickcheck',
-        'temporary',
-        'terminal-progress-bar',
-        'text',
-        'unix-compat',
-        'utf8-string',
-        'yaml',
+        "base",
+        "bytestring",
+        "conduit",
+        "conduit-extra",
+        "directory",
+        "extra",
+        "filepath",
+        "http-conduit",
+        "lens",
+        "main-tester",
+        "optparse-applicative",
+        "process",
+        "safe",
+        "safe-exceptions",
+        "semver",
+        "tar-conduit",
+        "tasty",
+        "tasty-hunit",
+        "tasty-quickcheck",
+        "temporary",
+        "terminal-progress-bar",
+        "text",
+        "unix-compat",
+        "utf8-string",
+        "yaml",
     ],
+    main_function = "DAML.Assistant.runTests",
     visibility = ["//visibility:public"],
+    deps = [
+        ":daml-project-config",
+        "//libs-haskell/da-hs-base",
+    ],
 )
 
 exports_files(["daml-studio.py"])
diff --git a/daml-assistant/daml-helper/BUILD.bazel b/daml-assistant/daml-helper/BUILD.bazel
index 478585726a..86b00f85df 100644
--- a/daml-assistant/daml-helper/BUILD.bazel
+++ b/daml-assistant/daml-helper/BUILD.bazel
@@ -1,15 +1,15 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load('//bazel_tools:haskell.bzl', 'da_haskell_binary', 'da_haskell_library', 'da_haskell_test')
-load('//bazel_tools:packaging/packaging.bzl', 'package_app')
+load("//bazel_tools:haskell.bzl", "da_haskell_binary", "da_haskell_library", "da_haskell_test")
+load("//bazel_tools:packaging/packaging.bzl", "package_app")
 
 da_haskell_library(
     name = "daml-helper-lib",
-    srcs = glob(["src/**/*.hs"], exclude = ["src/Main.hs"]),
-    deps = [
-        "//daml-assistant:daml-project-config",
-    ],
+    srcs = glob(
+        ["src/**/*.hs"],
+        exclude = ["src/Main.hs"],
+    ),
     hazel_deps = [
         "aeson",
         "async",
@@ -27,17 +27,20 @@ da_haskell_library(
         "text",
     ],
     visibility = ["//visibility:public"],
+    deps = [
+        "//daml-assistant:daml-project-config",
+    ],
 )
 
 da_haskell_binary(
     name = "daml-helper",
     srcs = ["src/Main.hs"],
-    deps = [":daml-helper-lib"],
     hazel_deps = [
         "base",
         "optparse-applicative",
     ],
     visibility = ["//visibility:public"],
+    deps = [":daml-helper-lib"],
 )
 
 package_app(
diff --git a/daml-assistant/integration-tests/BUILD.bazel b/daml-assistant/integration-tests/BUILD.bazel
index cc089d0e11..756038a2df 100644
--- a/daml-assistant/integration-tests/BUILD.bazel
+++ b/daml-assistant/integration-tests/BUILD.bazel
@@ -4,10 +4,11 @@ load("//bazel_tools:haskell.bzl", "da_haskell_test")
 
 da_haskell_test(
     name = "integration-tests",
+    timeout = "long",
     srcs = ["src/Main.hs"],
-    deps = [
-        "//libs-haskell/bazel-runfiles",
-        "//daml-assistant/daml-helper:daml-helper-lib",
+    data = [
+        "//release:sdk-release-tarball",
+        "@local_jdk//:bin/java",
     ],
     hazel_deps = [
         "async",
@@ -21,9 +22,8 @@ da_haskell_test(
         "tasty",
         "tasty-hunit",
     ],
-    data = [
-        "//release:sdk-release-tarball",
-        "@local_jdk//:bin/java",
+    deps = [
+        "//daml-assistant/daml-helper:daml-helper-lib",
+        "//libs-haskell/bazel-runfiles",
     ],
-    timeout = "long",
 )
diff --git a/daml-foundations/daml-ghc/BUILD.bazel b/daml-foundations/daml-ghc/BUILD.bazel
index 60b776cee8..3cbfb2e91d 100644
--- a/daml-foundations/daml-ghc/BUILD.bazel
+++ b/daml-foundations/daml-ghc/BUILD.bazel
@@ -1,155 +1,166 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load ("//bazel_tools:haskell.bzl"
-     , "da_haskell_library", "da_haskell_binary", "da_haskell_test")
-load ("//daml-foundations/daml-ghc:util.bzl"
-     , "daml_ghc_compile_test", "daml_ghc_integration_test")
+load(
+    "//bazel_tools:haskell.bzl",
+    "da_haskell_binary",
+    "da_haskell_library",
+    "da_haskell_test",
+)
+load(
+    "//daml-foundations/daml-ghc:util.bzl",
+    "daml_ghc_compile_test",
+    "daml_ghc_integration_test",
+)
 
 da_haskell_library(
-    name = "daml-ghc-lib"
-  , srcs = glob([
-      "src/DA/Daml/GHC/**/*.hs"
-    , "src/DA/Service/**/*.hs"
-    , "src/Development/IDE/**/*.hs"
-    ])
-  , src_strip_prefix = "src"
-  , deps = [
-      "//compiler/daml-lf-ast"
-    , "//compiler/daml-lf-proto"
-    , "//compiler/daml-lf-tools"
-    , "//daml-lf/archive:daml_lf_haskell_proto"
-    , "//libs-haskell/bazel-runfiles"
-    , "//libs-haskell/da-hs-pretty"
-    , "//libs-haskell/da-hs-base"
-    , "//libs-haskell/prettyprinter-syntax"
-    , "//compiler/haskell-ide-core"
-    , "//libs-haskell/da-hs-language-server"
-    , "//compiler/scenario-service/client"
-    , "//nix/third-party/proto3-suite"
-    ]
-  , hazel_deps = [
-      "aeson",
-      "aeson-pretty",
-      "async",
-      "base",
-      "binary",
-      "blaze-html",
-      "bytestring",
-      "cmark-gfm",
-      "containers",
-      "deepseq",
-      "Diff",
-      "directory",
-      "either",
-      "extra",
-      "filepath",
-      "filepattern",
-      "ghc-lib",
-      "ghc-lib-parser",
-      "hashable",
-      "http-types",
-      "lens",
-      "managed",
-      "mtl",
-      "network-uri",
-      "prettyprinter",
-      "process",
-      "recursion-schemes",
-      "safe",
-      "safe-exceptions",
-      "shake",
-      "stm",
-      "syb",
-      "tagged",
-      "temporary",
-      "text",
-      "time",
-      "transformers",
-      "transformers-base",
-      "uniplate",
-      "unordered-containers",
-      "uri-encode",
-      "vector",
-      "zip-archive",
-  ]
-  , visibility = ["//visibility:public"]
+    name = "daml-ghc-lib",
+    srcs = glob([
+        "src/DA/Daml/GHC/**/*.hs",
+        "src/DA/Service/**/*.hs",
+        "src/Development/IDE/**/*.hs",
+    ]),
+    hazel_deps = [
+        "aeson",
+        "aeson-pretty",
+        "async",
+        "base",
+        "binary",
+        "blaze-html",
+        "bytestring",
+        "cmark-gfm",
+        "containers",
+        "deepseq",
+        "Diff",
+        "directory",
+        "either",
+        "extra",
+        "filepath",
+        "filepattern",
+        "ghc-lib",
+        "ghc-lib-parser",
+        "hashable",
+        "http-types",
+        "lens",
+        "managed",
+        "mtl",
+        "network-uri",
+        "prettyprinter",
+        "process",
+        "recursion-schemes",
+        "safe",
+        "safe-exceptions",
+        "shake",
+        "stm",
+        "syb",
+        "tagged",
+        "temporary",
+        "text",
+        "time",
+        "transformers",
+        "transformers-base",
+        "uniplate",
+        "unordered-containers",
+        "uri-encode",
+        "vector",
+        "zip-archive",
+    ],
+    src_strip_prefix = "src",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//compiler/daml-lf-ast",
+        "//compiler/daml-lf-proto",
+        "//compiler/daml-lf-tools",
+        "//compiler/haskell-ide-core",
+        "//compiler/scenario-service/client",
+        "//daml-lf/archive:daml_lf_haskell_proto",
+        "//libs-haskell/bazel-runfiles",
+        "//libs-haskell/da-hs-base",
+        "//libs-haskell/da-hs-language-server",
+        "//libs-haskell/da-hs-pretty",
+        "//libs-haskell/prettyprinter-syntax",
+        "//nix/third-party/proto3-suite",
+    ],
 )
 
 daml_ghc_integration_test("daml-ghc-test-newest", "DA.Test.GHC.mainVersionNewest")
+
 daml_ghc_integration_test("daml-ghc-test-default", "DA.Test.GHC.mainVersionDefault")
 
-da_haskell_test (
-    name = "tasty-test"
-  , srcs = ["src/DA/Test/TastyMain.hs"]
-  , src_strip_prefix = "src"
-  , main_function = "DA.Test.TastyMain.main"
-  , deps = [
-      ":daml-ghc-lib"
-    , "//libs-haskell/da-hs-base"
-    , "//daml-foundations/daml-tools/da-hs-daml-cli"
-  ]
-  , data = [
-      ":tests"
-    , "//daml-foundations/daml-ghc/package-database:package-db"
-  ]
-  , hazel_deps = [
-      "base",
-      "tasty-hunit",
-      "text",
-  ]
-  , visibility = ["//visibility:public"]
+da_haskell_test(
+    name = "tasty-test",
+    srcs = ["src/DA/Test/TastyMain.hs"],
+    data = [
+        ":tests",
+        "//daml-foundations/daml-ghc/package-database:package-db",
+    ],
+    hazel_deps = [
+        "base",
+        "tasty-hunit",
+        "text",
+    ],
+    main_function = "DA.Test.TastyMain.main",
+    src_strip_prefix = "src",
+    visibility = ["//visibility:public"],
+    deps = [
+        ":daml-ghc-lib",
+        "//daml-foundations/daml-tools/da-hs-daml-cli",
+        "//libs-haskell/da-hs-base",
+    ],
 )
 
-da_haskell_test (
-    name = "daml-ghc-shake-test-ci"
-  , srcs = ["src/DA/Test/ShakeIdeClient.hs"]
-  , src_strip_prefix = "src"
-  , main_function = "DA.Test.ShakeIdeClient.main"
-  , deps = [
-      ":daml-ghc-lib"
-    , "//libs-haskell/da-hs-base"
-    , "//compiler/haskell-ide-core"
-  ]
-  , data = [
-      "//compiler/scenario-service/server:scenario_service_jar"
-    , "//daml-foundations/daml-ghc/package-database:package-db"
-  ]
-  , hazel_deps = [
-      "base",
-      "directory",
-      "managed",
-      "tasty-hunit",
-      "text",
-  ]
-  , visibility = ["//visibility:public"]
-  # this test takes a while and often time out -- tell that to bazel
-  , timeout = "long"
-  , size = "large"
+da_haskell_test(
+    name = "daml-ghc-shake-test-ci",
+    size = "large",
+    # this test takes a while and often time out -- tell that to bazel
+    timeout = "long",
+    srcs = ["src/DA/Test/ShakeIdeClient.hs"],
+    data = [
+        "//compiler/scenario-service/server:scenario_service_jar",
+        "//daml-foundations/daml-ghc/package-database:package-db",
+    ],
+    hazel_deps = [
+        "base",
+        "directory",
+        "managed",
+        "tasty-hunit",
+        "text",
+    ],
+    main_function = "DA.Test.ShakeIdeClient.main",
+    src_strip_prefix = "src",
+    visibility = ["//visibility:public"],
+    deps = [
+        ":daml-ghc-lib",
+        "//compiler/haskell-ide-core",
+        "//libs-haskell/da-hs-base",
+    ],
 )
 
 da_haskell_binary(
-    name = "generate-module-tree"
-  , srcs = ["src/DA/Test/GenerateModuleTree.hs"]
-  , src_strip_prefix = "src"
-  , main_function = "DA.Test.GenerateModuleTree.main"
-  , deps = ["//libs-haskell/da-hs-base"]
-  , hazel_deps = ["base", "filepath"]
+    name = "generate-module-tree",
+    srcs = ["src/DA/Test/GenerateModuleTree.hs"],
+    hazel_deps = [
+        "base",
+        "filepath",
+    ],
+    main_function = "DA.Test.GenerateModuleTree.main",
+    src_strip_prefix = "src",
+    deps = ["//libs-haskell/da-hs-base"],
 )
 
 genrule(
     name = "module-tree-test",
+    outs = ["FatTree{i}.daml".format(i = i) for i in range(1, 19)],
     cmd = "$(location :generate-module-tree) $(@D) 18",
-    outs = ["FatTree{i}.daml".format(i=i) for i in range(1,19)],
     tools = [":generate-module-tree"],
-    visibility = ['//visibility:public']
+    visibility = ["//visibility:public"],
 )
 
 daml_ghc_compile_test(
     name = "module-tree-memory",
     srcs = [":module-tree-test"],
     main = "FatTree18.daml",
-    visibility = ['//visibility:public'],
+    visibility = ["//visibility:public"],
 )
 
 daml_ghc_compile_test(
@@ -159,96 +170,104 @@ daml_ghc_compile_test(
 )
 
 daml_ghc_compile_test(
-  name = 'compile-empty',
-  srcs = [":tests"],
-  main = 'tests/Empty.daml',
+    name = "compile-empty",
+    srcs = [":tests"],
+    main = "tests/Empty.daml",
 )
 
 daml_ghc_compile_test(
     name = "examples-memory",
     srcs = [":tests"],
-    main = 'tests/Examples.daml',
     heap_limit = "200M",
+    main = "tests/Examples.daml",
     stack_limit = "230K",
 )
 
 daml_ghc_compile_test(
     name = "bond-trading-memory",
     srcs = [":bond-trading"],
-    main = 'bond-trading/Test.daml',
     heap_limit = "100M",
+    main = "bond-trading/Test.daml",
     stack_limit = "35K",
 )
 
 filegroup(
-  name = "tests",
-  srcs = glob(["tests/**"]),
-  visibility = [
-    "__pkg__",
-    "//daml-foundations/integration-tests:__pkg__"
-  ]
+    name = "tests",
+    srcs = glob(["tests/**"]),
+    visibility = [
+        "__pkg__",
+        "//daml-foundations/integration-tests:__pkg__",
+    ],
 )
 
 filegroup(
-  name = "bond-trading",
-  srcs = glob(["bond-trading/**"]),
-  visibility = [
-    "__pkg__",
-    "//daml-foundations/integration-tests:__pkg__"
-  ]
+    name = "bond-trading",
+    srcs = glob(["bond-trading/**"]),
+    visibility = [
+        "__pkg__",
+        "//daml-foundations/integration-tests:__pkg__",
+    ],
 )
 
 # Check that DAML compilation is deterministic.
 sh_test(
-  name = "daml-ghc-deterministic",
-  srcs = ["tests/daml-ghc-deterministic.sh"],
-  args = [
-      "$(location //daml-foundations/daml-tools/da-hs-damlc-app)",
-      "$(location @com_google_protobuf//:protoc)",
-  ],
-  data = [
-      "//daml-foundations/daml-tools/da-hs-damlc-app",
-      "//daml-foundations/daml-ghc/package-database:package-db",
-      ":tests",
-      "@com_google_protobuf//:protoc",
-  ]
+    name = "daml-ghc-deterministic",
+    srcs = ["tests/daml-ghc-deterministic.sh"],
+    args = [
+        "$(location //daml-foundations/daml-tools/da-hs-damlc-app)",
+        "$(location @com_google_protobuf//:protoc)",
+    ],
+    data = [
+        ":tests",
+        "//daml-foundations/daml-ghc/package-database:package-db",
+        "//daml-foundations/daml-tools/da-hs-damlc-app",
+        "@com_google_protobuf//:protoc",
+    ],
 )
 
 # Generating DAML stdlib docs.
 
 filegroup(
-  name = "daml-base-files", # DAML files to be included in DAML base docs.
-  srcs = ['//daml-foundations/daml-ghc/daml-stdlib-src'
-         ,'//daml-foundations/daml-ghc/daml-prim-src'],
-  visibility = ["__pkg__"]
+    name = "daml-base-files",  # DAML files to be included in DAML base docs.
+    srcs = [
+        "//daml-foundations/daml-ghc/daml-prim-src",
+        "//daml-foundations/daml-ghc/daml-stdlib-src",
+    ],
+    visibility = ["__pkg__"],
 )
 
 filegroup(
-  name = "daml-base-hoogle-prefix",
-  srcs = ['base-hoogle-prefix.txt'],
-  visibility = ["__pkg__"]
+    name = "daml-base-hoogle-prefix",
+    srcs = ["base-hoogle-prefix.txt"],
+    visibility = ["__pkg__"],
 )
 
 filegroup(
-  name = "daml-base-rst-prefix",
-  srcs = ['base-rst-prefix.rst'],
-  visibility = ["__pkg__"]
+    name = "daml-base-rst-prefix",
+    srcs = ["base-rst-prefix.rst"],
+    visibility = ["__pkg__"],
 )
 
 genrule(
-  name = 'daml-base-hoogle-docs',
-  outs = ['daml-base-hoogle.txt'],
-  tools = ['//daml-foundations/daml-tools/da-hs-damlc-app'],
-  srcs = [':daml-base-files', ':daml-base-hoogle-prefix'],
-  cmd  = '$(location //daml-foundations/daml-tools/da-hs-damlc-app) -- docs --output=$(OUTS) --format=Hoogle $(locations :daml-base-files) --prefix=$(location :daml-base-hoogle-prefix)',
-  visibility = ["//visibility:public"],
+    name = "daml-base-hoogle-docs",
+    srcs = [
+        ":daml-base-files",
+        ":daml-base-hoogle-prefix",
+    ],
+    outs = ["daml-base-hoogle.txt"],
+    cmd = "$(location //daml-foundations/daml-tools/da-hs-damlc-app) -- docs --output=$(OUTS) --format=Hoogle $(locations :daml-base-files) --prefix=$(location :daml-base-hoogle-prefix)",
+    tools = ["//daml-foundations/daml-tools/da-hs-damlc-app"],
+    visibility = ["//visibility:public"],
 )
 
 genrule(
-  name = 'daml-base-rst-docs',
-  outs = ['daml-base.rst'],
-  tools = ['//daml-foundations/daml-tools/da-hs-damlc-app'],
-  srcs = [':daml-base-files', ':daml-base-rst-prefix'],
-  cmd  = '$(location //daml-foundations/daml-tools/da-hs-damlc-app) -- docs --output=$(OUTS) --format=Rst $(locations :daml-base-files) --prefix=$(location :daml-base-rst-prefix)',
-  visibility = ["//visibility:public"],
+    name = "daml-base-rst-docs",
+    srcs = [
+        ":daml-base-files",
+        ":daml-base-rst-prefix",
+    ],
+    outs = ["daml-base.rst"],
+    cmd = "$(location //daml-foundations/daml-tools/da-hs-damlc-app) -- docs --output=$(OUTS) --format=Rst $(locations :daml-base-files) --prefix=$(location :daml-base-rst-prefix)",
+    tools = ["//daml-foundations/daml-tools/da-hs-damlc-app"],
+    visibility = ["//visibility:public"],
 )
diff --git a/daml-foundations/daml-ghc/daml-prim-and-stdlib-src/BUILD.bazel b/daml-foundations/daml-ghc/daml-prim-and-stdlib-src/BUILD.bazel
index b862a11ca3..78e19531ea 100644
--- a/daml-foundations/daml-ghc/daml-prim-and-stdlib-src/BUILD.bazel
+++ b/daml-foundations/daml-ghc/daml-prim-and-stdlib-src/BUILD.bazel
@@ -1,9 +1,8 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-
 filegroup(
-  name = "daml-prim-and-stdlib-src",
-  srcs = glob(["**/*.daml"]),
-  visibility = ["//visibility:public"]
+    name = "daml-prim-and-stdlib-src",
+    srcs = glob(["**/*.daml"]),
+    visibility = ["//visibility:public"],
 )
diff --git a/daml-foundations/daml-ghc/daml-prim-src/BUILD.bazel b/daml-foundations/daml-ghc/daml-prim-src/BUILD.bazel
index 1e90a5bcc0..46bb9d5b16 100644
--- a/daml-foundations/daml-ghc/daml-prim-src/BUILD.bazel
+++ b/daml-foundations/daml-ghc/daml-prim-src/BUILD.bazel
@@ -1,9 +1,8 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-
 filegroup(
-  name = "daml-prim-src",
-  srcs = glob(["**/*.daml"]),
-  visibility = ["//visibility:public"]
+    name = "daml-prim-src",
+    srcs = glob(["**/*.daml"]),
+    visibility = ["//visibility:public"],
 )
diff --git a/daml-foundations/daml-ghc/daml-stdlib-src/BUILD.bazel b/daml-foundations/daml-ghc/daml-stdlib-src/BUILD.bazel
index 155bd315ce..ced6f24086 100644
--- a/daml-foundations/daml-ghc/daml-stdlib-src/BUILD.bazel
+++ b/daml-foundations/daml-ghc/daml-stdlib-src/BUILD.bazel
@@ -1,9 +1,11 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-
 filegroup(
-  name = "daml-stdlib-src",
-  srcs = glob(["*.daml", "**/*.daml"]),
-  visibility = ["//visibility:public"]
+    name = "daml-stdlib-src",
+    srcs = glob([
+        "*.daml",
+        "**/*.daml",
+    ]),
+    visibility = ["//visibility:public"],
 )
diff --git a/daml-foundations/daml-ghc/package-database/BUILD.bazel b/daml-foundations/daml-ghc/package-database/BUILD.bazel
index 1f0b1c8c81..33c7a3c353 100644
--- a/daml-foundations/daml-ghc/package-database/BUILD.bazel
+++ b/daml-foundations/daml-ghc/package-database/BUILD.bazel
@@ -1,11 +1,18 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load ("//bazel_tools:haskell.bzl"
-      , "da_haskell_library", "da_haskell_binary", "da_haskell_test")
-
-load ("//daml-foundations/daml-ghc/package-database:util.bzl"
-      , "daml_package_rule", "daml_package_db", "bundled_package_db")
+load(
+    "//bazel_tools:haskell.bzl",
+    "da_haskell_binary",
+    "da_haskell_library",
+    "da_haskell_test",
+)
+load(
+    "//daml-foundations/daml-ghc/package-database:util.bzl",
+    "bundled_package_db",
+    "daml_package_db",
+    "daml_package_rule",
+)
 
 daml_package_db(
     name = "package_db_for_daml-prim",
@@ -14,152 +21,163 @@ daml_package_db(
 )
 
 daml_package_rule(
-  name = "daml-prim-1.0",
-  pkg_name = "daml-prim",
-  srcs = "//daml-foundations/daml-ghc/daml-prim-src",
-  pkg_root = "daml-foundations/daml-ghc/daml-prim-src",
-  package_db = ":package_db_for_daml-prim",
-  visibility = ["//visibility:public"],
-  daml_lf_version = "1.0",
+    name = "daml-prim-1.0",
+    srcs = "//daml-foundations/daml-ghc/daml-prim-src",
+    daml_lf_version = "1.0",
+    package_db = ":package_db_for_daml-prim",
+    pkg_name = "daml-prim",
+    pkg_root = "daml-foundations/daml-ghc/daml-prim-src",
+    visibility = ["//visibility:public"],
 )
 
 daml_package_rule(
-  name = "daml-prim-1.1",
-  pkg_name = "daml-prim",
-  srcs = "//daml-foundations/daml-ghc/daml-prim-src",
-  pkg_root = "daml-foundations/daml-ghc/daml-prim-src",
-  package_db = ":package_db_for_daml-prim",
-  visibility = ["//visibility:public"],
-  daml_lf_version = "1.1",
+    name = "daml-prim-1.1",
+    srcs = "//daml-foundations/daml-ghc/daml-prim-src",
+    daml_lf_version = "1.1",
+    package_db = ":package_db_for_daml-prim",
+    pkg_name = "daml-prim",
+    pkg_root = "daml-foundations/daml-ghc/daml-prim-src",
+    visibility = ["//visibility:public"],
 )
 
 daml_package_rule(
-  name = "daml-prim-1.2",
-  pkg_name = "daml-prim",
-  srcs = "//daml-foundations/daml-ghc/daml-prim-src",
-  pkg_root = "daml-foundations/daml-ghc/daml-prim-src",
-  package_db = ":package_db_for_daml-prim",
-  visibility = ["//visibility:public"],
-  daml_lf_version = "1.2",
+    name = "daml-prim-1.2",
+    srcs = "//daml-foundations/daml-ghc/daml-prim-src",
+    daml_lf_version = "1.2",
+    package_db = ":package_db_for_daml-prim",
+    pkg_name = "daml-prim",
+    pkg_root = "daml-foundations/daml-ghc/daml-prim-src",
+    visibility = ["//visibility:public"],
 )
 
 daml_package_rule(
-  name = "daml-prim-1.3",
-  pkg_name = "daml-prim",
-  srcs = "//daml-foundations/daml-ghc/daml-prim-src",
-  pkg_root = "daml-foundations/daml-ghc/daml-prim-src",
-  package_db = ":package_db_for_daml-prim",
-  visibility = ["//visibility:public"],
-  daml_lf_version = "1.3",
+    name = "daml-prim-1.3",
+    srcs = "//daml-foundations/daml-ghc/daml-prim-src",
+    daml_lf_version = "1.3",
+    package_db = ":package_db_for_daml-prim",
+    pkg_name = "daml-prim",
+    pkg_root = "daml-foundations/daml-ghc/daml-prim-src",
+    visibility = ["//visibility:public"],
 )
 
 daml_package_rule(
-  name = "daml-prim-dev",
-  pkg_name = "daml-prim",
-  srcs = "//daml-foundations/daml-ghc/daml-prim-src",
-  pkg_root = "daml-foundations/daml-ghc/daml-prim-src",
-  package_db = ":package_db_for_daml-prim",
-  visibility = ["//visibility:public"],
-  daml_lf_version = "dev",
+    name = "daml-prim-dev",
+    srcs = "//daml-foundations/daml-ghc/daml-prim-src",
+    daml_lf_version = "dev",
+    package_db = ":package_db_for_daml-prim",
+    pkg_name = "daml-prim",
+    pkg_root = "daml-foundations/daml-ghc/daml-prim-src",
+    visibility = ["//visibility:public"],
 )
 
 daml_package_rule(
-  name = "daml-stdlib-1.0",
-  pkg_name = "daml-stdlib",
-  srcs = "//daml-foundations/daml-ghc/daml-stdlib-src",
-  pkg_root = "daml-foundations/daml-ghc/daml-stdlib-src",
-  package_db = ":package_db_for_daml-stdlib",
-  daml_lf_version = "1.0",
-  dependencies = [":daml-prim-1.0"],
-  visibility = ["//visibility:public"]
+    name = "daml-stdlib-1.0",
+    srcs = "//daml-foundations/daml-ghc/daml-stdlib-src",
+    daml_lf_version = "1.0",
+    dependencies = [":daml-prim-1.0"],
+    package_db = ":package_db_for_daml-stdlib",
+    pkg_name = "daml-stdlib",
+    pkg_root = "daml-foundations/daml-ghc/daml-stdlib-src",
+    visibility = ["//visibility:public"],
 )
 
 daml_package_rule(
-  name = "daml-stdlib-1.1",
-  pkg_name = "daml-stdlib",
-  srcs = "//daml-foundations/daml-ghc/daml-stdlib-src",
-  pkg_root = "daml-foundations/daml-ghc/daml-stdlib-src",
-  package_db = ":package_db_for_daml-stdlib",
-  daml_lf_version = "1.1",
-  dependencies = [":daml-prim-1.1"],
-  visibility = ["//visibility:public"]
+    name = "daml-stdlib-1.1",
+    srcs = "//daml-foundations/daml-ghc/daml-stdlib-src",
+    daml_lf_version = "1.1",
+    dependencies = [":daml-prim-1.1"],
+    package_db = ":package_db_for_daml-stdlib",
+    pkg_name = "daml-stdlib",
+    pkg_root = "daml-foundations/daml-ghc/daml-stdlib-src",
+    visibility = ["//visibility:public"],
 )
 
 daml_package_rule(
-  name = "daml-stdlib-1.2",
-  pkg_name = "daml-stdlib",
-  srcs = "//daml-foundations/daml-ghc/daml-stdlib-src",
-  pkg_root = "daml-foundations/daml-ghc/daml-stdlib-src",
-  package_db = ":package_db_for_daml-stdlib",
-  daml_lf_version = "1.2",
-  dependencies = [":daml-prim-1.2"],
-  visibility = ["//visibility:public"]
+    name = "daml-stdlib-1.2",
+    srcs = "//daml-foundations/daml-ghc/daml-stdlib-src",
+    daml_lf_version = "1.2",
+    dependencies = [":daml-prim-1.2"],
+    package_db = ":package_db_for_daml-stdlib",
+    pkg_name = "daml-stdlib",
+    pkg_root = "daml-foundations/daml-ghc/daml-stdlib-src",
+    visibility = ["//visibility:public"],
 )
 
 daml_package_rule(
-  name = "daml-stdlib-1.3",
-  pkg_name = "daml-stdlib",
-  srcs = "//daml-foundations/daml-ghc/daml-stdlib-src",
-  pkg_root = "daml-foundations/daml-ghc/daml-stdlib-src",
-  package_db = ":package_db_for_daml-stdlib",
-  daml_lf_version = "1.3",
-  dependencies = [":daml-prim-1.3"],
-  visibility = ["//visibility:public"]
+    name = "daml-stdlib-1.3",
+    srcs = "//daml-foundations/daml-ghc/daml-stdlib-src",
+    daml_lf_version = "1.3",
+    dependencies = [":daml-prim-1.3"],
+    package_db = ":package_db_for_daml-stdlib",
+    pkg_name = "daml-stdlib",
+    pkg_root = "daml-foundations/daml-ghc/daml-stdlib-src",
+    visibility = ["//visibility:public"],
 )
 
 daml_package_rule(
-  name = "daml-stdlib-dev",
-  pkg_name = "daml-stdlib",
-  srcs = "//daml-foundations/daml-ghc/daml-stdlib-src",
-  pkg_root = "daml-foundations/daml-ghc/daml-stdlib-src",
-  package_db = ":package_db_for_daml-stdlib",
-  daml_lf_version = "dev",
-  dependencies = [":daml-prim-dev"],
-  visibility = ["//visibility:public"]
+    name = "daml-stdlib-dev",
+    srcs = "//daml-foundations/daml-ghc/daml-stdlib-src",
+    daml_lf_version = "dev",
+    dependencies = [":daml-prim-dev"],
+    package_db = ":package_db_for_daml-stdlib",
+    pkg_name = "daml-stdlib",
+    pkg_root = "daml-foundations/daml-ghc/daml-stdlib-src",
+    visibility = ["//visibility:public"],
 )
 
 daml_package_db(
-  name = "package_db_for_daml-stdlib",
-  pkgs = [":daml-prim-1.0", ":daml-prim-1.1", ":daml-prim-1.2", ":daml-prim-1.3", ":daml-prim-dev"],
-  visibility = ["//visibility:public"]
+    name = "package_db_for_daml-stdlib",
+    pkgs = [
+        ":daml-prim-1.0",
+        ":daml-prim-1.1",
+        ":daml-prim-1.2",
+        ":daml-prim-1.3",
+        ":daml-prim-dev",
+    ],
+    visibility = ["//visibility:public"],
 )
 
 daml_package_db(
-  name = "package_db_for_damlc",
-  pkgs =  [":daml-prim-1.0"
-          ,":daml-prim-1.1"
-          ,":daml-prim-1.2"
-          ,":daml-prim-1.3"
-          ,":daml-prim-dev"
-          ,":daml-stdlib-1.0"
-          ,":daml-stdlib-1.1"
-          ,":daml-stdlib-1.2"
-          ,":daml-stdlib-1.3"
-          ,":daml-stdlib-dev"
-          ],
-  visibility = ["//visibility:public"]
+    name = "package_db_for_damlc",
+    pkgs = [
+        ":daml-prim-1.0",
+        ":daml-prim-1.1",
+        ":daml-prim-1.2",
+        ":daml-prim-1.3",
+        ":daml-prim-dev",
+        ":daml-stdlib-1.0",
+        ":daml-stdlib-1.1",
+        ":daml-stdlib-1.2",
+        ":daml-stdlib-1.3",
+        ":daml-stdlib-dev",
+    ],
+    visibility = ["//visibility:public"],
 )
 
 bundled_package_db(
     name = "package-db",
+    daml_lf_versions = [
+        "1.0",
+        "1.1",
+        "1.2",
+        "1.3",
+        "dev",
+    ],
     pkg_db = ":package_db_for_damlc",
-    daml_lf_versions = ["1.0", "1.1", "1.2", "1.3", "dev"],
     visibility = ["//visibility:public"],
 )
 
-
 # TODO Make sure that tools no longer rely on this.
 # The daml-prim .dar archive. It is shipped as DAML-LF 1.0 such that we can link it from DAML-LF 1.0
 # as well as DAML-LF 1.1 dalfs.
 genrule(
-  name = "gen-daml-prim.dar",
-  outs = ["daml-prim.dar"],
-  tools = ["//daml-foundations/daml-tools/da-hs-damlc-app"],
-  srcs = ["//daml-foundations/daml-ghc/daml-prim-src"],
-  cmd = """
+    name = "gen-daml-prim.dar",
+    srcs = ["//daml-foundations/daml-ghc/daml-prim-src"],
+    outs = ["daml-prim.dar"],
+    cmd = """
     $(location //daml-foundations/daml-tools/da-hs-damlc-app) \
       package daml-foundations/daml-ghc/daml-prim-src/LibraryModules.daml daml-prim --target 1.0 -o $(location daml-prim.dar)
   """,
-  visibility = ["//visibility:public"],
+    tools = ["//daml-foundations/daml-tools/da-hs-damlc-app"],
+    visibility = ["//visibility:public"],
 )
-
diff --git a/daml-foundations/daml-ghc/package-database/deprecated/BUILD.bazel b/daml-foundations/daml-ghc/package-database/deprecated/BUILD.bazel
index d5adadebee..ddd17bd99e 100644
--- a/daml-foundations/daml-ghc/package-database/deprecated/BUILD.bazel
+++ b/daml-foundations/daml-ghc/package-database/deprecated/BUILD.bazel
@@ -1,63 +1,69 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load ("//daml-foundations/daml-ghc/package-database:util.bzl", "bundled_package_db", "daml_package_rule", "daml_package_db")
+load("//daml-foundations/daml-ghc/package-database:util.bzl", "bundled_package_db", "daml_package_db", "daml_package_rule")
 
 bundled_package_db(
     name = "package-db",
+    daml_lf_versions = [
+        "1.0",
+        "1.1",
+        "1.2",
+        "1.3",
+    ],
     pkg_db = ":package_db_for_damlc",
-    daml_lf_versions = ["1.0", "1.1", "1.2", "1.3"],
     visibility = ["//visibility:public"],
 )
 
 daml_package_rule(
-  name = "daml-prim-1.0",
-  pkg_name = "daml-prim",
-  srcs = "//daml-foundations/daml-ghc/daml-prim-and-stdlib-src",
-  pkg_root = "daml-foundations/daml-ghc/daml-prim-and-stdlib-src",
-  package_db = "//daml-foundations/daml-ghc/package-database:package_db_for_daml-prim",
-  visibility = ["//visibility:public"],
-  daml_lf_version = "1.0",
+    name = "daml-prim-1.0",
+    srcs = "//daml-foundations/daml-ghc/daml-prim-and-stdlib-src",
+    daml_lf_version = "1.0",
+    package_db = "//daml-foundations/daml-ghc/package-database:package_db_for_daml-prim",
+    pkg_name = "daml-prim",
+    pkg_root = "daml-foundations/daml-ghc/daml-prim-and-stdlib-src",
+    visibility = ["//visibility:public"],
 )
 
 daml_package_rule(
-  name = "daml-prim-1.1",
-  pkg_name = "daml-prim",
-  srcs = "//daml-foundations/daml-ghc/daml-prim-and-stdlib-src",
-  pkg_root = "daml-foundations/daml-ghc/daml-prim-and-stdlib-src",
-  package_db = "//daml-foundations/daml-ghc/package-database:package_db_for_daml-prim",
-  visibility = ["//visibility:public"],
-  daml_lf_version = "1.1",
+    name = "daml-prim-1.1",
+    srcs = "//daml-foundations/daml-ghc/daml-prim-and-stdlib-src",
+    daml_lf_version = "1.1",
+    package_db = "//daml-foundations/daml-ghc/package-database:package_db_for_daml-prim",
+    pkg_name = "daml-prim",
+    pkg_root = "daml-foundations/daml-ghc/daml-prim-and-stdlib-src",
+    visibility = ["//visibility:public"],
 )
 
 daml_package_rule(
-  name = "daml-prim-1.2",
-  pkg_name = "daml-prim",
-  srcs = "//daml-foundations/daml-ghc/daml-prim-and-stdlib-src",
-  pkg_root = "daml-foundations/daml-ghc/daml-prim-and-stdlib-src",
-  package_db = "//daml-foundations/daml-ghc/package-database:package_db_for_daml-prim",
-  visibility = ["//visibility:public"],
-  daml_lf_version = "1.2",
+    name = "daml-prim-1.2",
+    srcs = "//daml-foundations/daml-ghc/daml-prim-and-stdlib-src",
+    daml_lf_version = "1.2",
+    package_db = "//daml-foundations/daml-ghc/package-database:package_db_for_daml-prim",
+    pkg_name = "daml-prim",
+    pkg_root = "daml-foundations/daml-ghc/daml-prim-and-stdlib-src",
+    visibility = ["//visibility:public"],
 )
 
 daml_package_rule(
-  name = "daml-prim-1.3",
-  pkg_name = "daml-prim",
-  srcs = "//daml-foundations/daml-ghc/daml-prim-and-stdlib-src",
-  pkg_root = "daml-foundations/daml-ghc/daml-prim-and-stdlib-src",
-  package_db = "//daml-foundations/daml-ghc/package-database:package_db_for_daml-prim",
-  visibility = ["//visibility:public"],
-  daml_lf_version = "1.3",
+    name = "daml-prim-1.3",
+    srcs = "//daml-foundations/daml-ghc/daml-prim-and-stdlib-src",
+    daml_lf_version = "1.3",
+    package_db = "//daml-foundations/daml-ghc/package-database:package_db_for_daml-prim",
+    pkg_name = "daml-prim",
+    pkg_root = "daml-foundations/daml-ghc/daml-prim-and-stdlib-src",
+    visibility = ["//visibility:public"],
 )
 
 daml_package_db(
-  name = "package_db_for_damlc",
-  pkgs =  [":daml-prim-1.0"
-          ,":daml-prim-1.1"
-          ,":daml-prim-1.2"
-          ,":daml-prim-1.3"
-          ],
-  visibility = ["//visibility:public"]
+    name = "package_db_for_damlc",
+    pkgs = [
+        ":daml-prim-1.0",
+        ":daml-prim-1.1",
+        ":daml-prim-1.2",
+        ":daml-prim-1.3",
+    ],
+    visibility = ["//visibility:public"],
 )
 
 alias(
diff --git a/daml-foundations/daml-ghc/package-database/util.bzl b/daml-foundations/daml-ghc/package-database/util.bzl
index 297af699e7..375f0ff10a 100644
--- a/daml-foundations/daml-ghc/package-database/util.bzl
+++ b/daml-foundations/daml-ghc/package-database/util.bzl
@@ -28,7 +28,6 @@
 #   Outputs:
 #   - A tarball containing the combined package database
 
-
 PACKAGE_CONF_TEMPLATE = """
 name: {name}
 version: 1.0.0
@@ -44,39 +43,39 @@ data-dir: $topdir/{name}
 depends: {depends}
 """
 
-DamlPackage = provider(fields=["daml_lf_version", "pkg_name", "pkg_conf", "iface_tar", "dalf", "modules"])
+DamlPackage = provider(fields = ["daml_lf_version", "pkg_name", "pkg_conf", "iface_tar", "dalf", "modules"])
 
 # Compile a DAML file and create the GHC package database
 # for it.
 def _daml_package_rule_impl(ctx):
-  name = ctx.attr.name
+    name = ctx.attr.name
 
-  # Construct mapping from module names to paths
-  modules = {}
-  for file in ctx.files.srcs:
-    # FIXME(JM): HACK: the `[3:]` assumes we're in
-    # daml-foundations/daml-ghc! Find a way to get the
-    # base path...
-    modules[".".join(file.path[:-5].split("/")[3:])] = file.path
+    # Construct mapping from module names to paths
+    modules = {}
+    for file in ctx.files.srcs:
+        # FIXME(JM): HACK: the `[3:]` assumes we're in
+        # daml-foundations/daml-ghc! Find a way to get the
+        # base path...
+        modules[".".join(file.path[:-5].split("/")[3:])] = file.path
 
-  # Create the package conf file
-  ctx.actions.write(
-    output = ctx.outputs.config,
-    content = PACKAGE_CONF_TEMPLATE.format(
-      name = ctx.attr.pkg_name,
-      modules = " ".join(modules.keys()),
-      depends = " ".join([dep[DamlPackage].pkg_name for dep in ctx.attr.dependencies])
+    # Create the package conf file
+    ctx.actions.write(
+        output = ctx.outputs.config,
+        content = PACKAGE_CONF_TEMPLATE.format(
+            name = ctx.attr.pkg_name,
+            modules = " ".join(modules.keys()),
+            depends = " ".join([dep[DamlPackage].pkg_name for dep in ctx.attr.dependencies]),
+        ),
     )
-  )
 
-  package_db_tar = ctx.attr.package_db[PackageDb].tar
+    package_db_tar = ctx.attr.package_db[PackageDb].tar
 
-  ctx.actions.run_shell(
-    outputs = [ctx.outputs.dalf, ctx.outputs.iface_tar],
-    inputs = ctx.files.srcs + [package_db_tar],
-    tools = [ctx.executable.damlc_bootstrap],
-    progress_message = "Compiling " + name + ".daml to daml-lf " + ctx.attr.daml_lf_version,
-    command = """
+    ctx.actions.run_shell(
+        outputs = [ctx.outputs.dalf, ctx.outputs.iface_tar],
+        inputs = ctx.files.srcs + [package_db_tar],
+        tools = [ctx.executable.damlc_bootstrap],
+        progress_message = "Compiling " + name + ".daml to daml-lf " + ctx.attr.daml_lf_version,
+        command = """
       mkdir -p tmp_db
       tar xf {db_tar} -C tmp_db --strip-components 1
       mkdir -p tmp_db/{daml_lf_version}
@@ -92,166 +91,169 @@ def _daml_package_rule_impl(ctx):
 
       tar cf {iface_tar} '--exclude=*.daml' -C $(dirname {pkg_root}) $(basename {pkg_root})
     """.format(
-        main = modules[ctx.attr.main],
-        name = name,
-        damlc_bootstrap = ctx.executable.damlc_bootstrap.path,
-        dalf_file = ctx.outputs.dalf.path,
-        daml_lf_version = ctx.attr.daml_lf_version,
-        db_tar = package_db_tar.path,
-        iface_tar = ctx.outputs.iface_tar.path,
-        pkg_root = ctx.attr.pkg_root,
-        pkg_name = ctx.attr.pkg_name,
-      )
+            main = modules[ctx.attr.main],
+            name = name,
+            damlc_bootstrap = ctx.executable.damlc_bootstrap.path,
+            dalf_file = ctx.outputs.dalf.path,
+            daml_lf_version = ctx.attr.daml_lf_version,
+            db_tar = package_db_tar.path,
+            iface_tar = ctx.outputs.iface_tar.path,
+            pkg_root = ctx.attr.pkg_root,
+            pkg_name = ctx.attr.pkg_name,
+        ),
     )
 
-  return [
-    DefaultInfo(),
-    DamlPackage(
-      pkg_name = ctx.attr.pkg_name,
-      daml_lf_version = ctx.attr.daml_lf_version,
-      pkg_conf = ctx.outputs.config,
-      iface_tar = ctx.outputs.iface_tar,
-      dalf = ctx.outputs.dalf,
-      modules = [k for k in modules],
-    ),
-  ]
+    return [
+        DefaultInfo(),
+        DamlPackage(
+            pkg_name = ctx.attr.pkg_name,
+            daml_lf_version = ctx.attr.daml_lf_version,
+            pkg_conf = ctx.outputs.config,
+            iface_tar = ctx.outputs.iface_tar,
+            dalf = ctx.outputs.dalf,
+            modules = [k for k in modules],
+        ),
+    ]
 
 def _daml_package_outputs_impl(name):
-  return {
-    "dalf": name + ".dalf",
-    "config": name + ".conf",
-    "iface_tar": name + ".tar",
-  }
+    return {
+        "dalf": name + ".dalf",
+        "config": name + ".conf",
+        "iface_tar": name + ".tar",
+    }
 
 daml_package_rule = rule(
-  implementation = _daml_package_rule_impl,
-
-  toolchains=["@io_tweag_rules_haskell//haskell:toolchain"],
-  attrs = {
-    "pkg_name": attr.string(mandatory = True),
-    "main": attr.string(default = "LibraryModules"),
-    "srcs": attr.label(allow_files = True),
-    "pkg_root": attr.string(),
-    "package_db": attr.label(
-      default = Label("//daml-foundations/daml-ghc/package-database:package-db"),
-      executable = False,
-      cfg = "host",),
-    "dependencies": attr.label_list(allow_files = False),
-    "damlc_bootstrap": attr.label(
-      default = Label("//daml-foundations/daml-tools/da-hs-damlc-app:damlc_bootstrap"),
-      executable = True,
-      cfg = "host",
-    ),
-    "daml_lf_version": attr.string(
-      mandatory = True,
-    ),
-  },
-  outputs = _daml_package_outputs_impl
+    implementation = _daml_package_rule_impl,
+    toolchains = ["@io_tweag_rules_haskell//haskell:toolchain"],
+    attrs = {
+        "pkg_name": attr.string(mandatory = True),
+        "main": attr.string(default = "LibraryModules"),
+        "srcs": attr.label(allow_files = True),
+        "pkg_root": attr.string(),
+        "package_db": attr.label(
+            default = Label("//daml-foundations/daml-ghc/package-database:package-db"),
+            executable = False,
+            cfg = "host",
+        ),
+        "dependencies": attr.label_list(allow_files = False),
+        "damlc_bootstrap": attr.label(
+            default = Label("//daml-foundations/daml-tools/da-hs-damlc-app:damlc_bootstrap"),
+            executable = True,
+            cfg = "host",
+        ),
+        "daml_lf_version": attr.string(
+            mandatory = True,
+        ),
+    },
+    outputs = _daml_package_outputs_impl,
 )
 
-PackageDb = provider(fields=["tar", "pkgs"])
+PackageDb = provider(fields = ["tar", "pkgs"])
 
 def _daml_package_db_impl(ctx):
-  toolchain = ctx.toolchains["@io_tweag_rules_haskell//haskell:toolchain"]
-  ctx.actions.run_shell(
-    inputs = [inp for pkg in ctx.attr.pkgs for inp in [pkg[DamlPackage].pkg_conf, pkg[DamlPackage].iface_tar, pkg[DamlPackage].dalf]],
-    tools = [toolchain.tools.ghc_pkg],
-    outputs = [ctx.outputs.tar],
-    command =
-    """
+    toolchain = ctx.toolchains["@io_tweag_rules_haskell//haskell:toolchain"]
+    ctx.actions.run_shell(
+        inputs = [inp for pkg in ctx.attr.pkgs for inp in [pkg[DamlPackage].pkg_conf, pkg[DamlPackage].iface_tar, pkg[DamlPackage].dalf]],
+        tools = [toolchain.tools.ghc_pkg],
+        outputs = [ctx.outputs.tar],
+        command =
+            """
       mkdir package_db
-    """
-    +
-    "".join(
-      ["""
+    """ +
+            "".join(
+                [
+                    """
        mkdir -p package_db/{daml_lf_version}/{pkg_name}
        cp {pkg_conf} package_db/{daml_lf_version}/{pkg_name}.conf
        tar xf {iface_tar} --strip-components=1 -C package_db/{daml_lf_version}/{pkg_name}/
        cp {dalf} package_db/{daml_lf_version}/{pkg_name}.dalf
        """.format(
-         daml_lf_version = pkg[DamlPackage].daml_lf_version,
-         pkg_name = pkg[DamlPackage].pkg_name,
-         pkg_conf = pkg[DamlPackage].pkg_conf.path,
-         iface_tar = pkg[DamlPackage].iface_tar.path,
-         dalf = pkg[DamlPackage].dalf.path,
-       )
-       for pkg
-       in ctx.attr.pkgs]
-    )
-    +
-    """
+                        daml_lf_version = pkg[DamlPackage].daml_lf_version,
+                        pkg_name = pkg[DamlPackage].pkg_name,
+                        pkg_conf = pkg[DamlPackage].pkg_conf.path,
+                        iface_tar = pkg[DamlPackage].iface_tar.path,
+                        dalf = pkg[DamlPackage].dalf.path,
+                    )
+                    for pkg in ctx.attr.pkgs
+                ],
+            ) +
+            """
       for lf_version in package_db/*; do
         {ghc_pkg} recache --package-db=$lf_version --no-expand-pkgroot
       done
       tar cf {db_tar} package_db
     """.format(
-      db_tar = ctx.outputs.tar.path,
-      ghc_pkg = toolchain.tools.ghc_pkg.path,
-    ),
-  )
-  return [
-    DefaultInfo(),
-    PackageDb(tar = ctx.outputs.tar, pkgs = [pkg[DamlPackage] for pkg in ctx.attr.pkgs]),
-  ]
+                db_tar = ctx.outputs.tar.path,
+                ghc_pkg = toolchain.tools.ghc_pkg.path,
+            ),
+    )
+    return [
+        DefaultInfo(),
+        PackageDb(tar = ctx.outputs.tar, pkgs = [pkg[DamlPackage] for pkg in ctx.attr.pkgs]),
+    ]
 
 def _daml_package_db_outputs_impl(name):
-  return {
-    "tar": name + ".tar",
-  }
-
+    return {
+        "tar": name + ".tar",
+    }
 
 daml_package_db = rule(
-  implementation = _daml_package_db_impl,
-  toolchains=["@io_tweag_rules_haskell//haskell:toolchain"],
-  attrs = {
-    "pkgs": attr.label_list(
-      allow_files = False,
-      providers = [DamlPackage],
-    ),
-  },
-  outputs = _daml_package_db_outputs_impl
+    implementation = _daml_package_db_impl,
+    toolchains = ["@io_tweag_rules_haskell//haskell:toolchain"],
+    attrs = {
+        "pkgs": attr.label_list(
+            allow_files = False,
+            providers = [DamlPackage],
+        ),
+    },
+    outputs = _daml_package_db_outputs_impl,
 )
 
 # We might want to kill this rule at some point but I find the fact that
 # I can just mess around with tarballs in the other rules way more convenient
 # so given that we only use the bundling stuff once, this seems somewhat reasonable.
 def _bundled_package_db_impl(ctx):
-  db_files = [f for daml_lf_version in ctx.attr.daml_lf_versions
-                for f in [ctx.actions.declare_file("{daml_lf_version}/package.cache".format(daml_lf_version = daml_lf_version)),
-                          ctx.actions.declare_file("{daml_lf_version}/package.cache.lock".format(daml_lf_version = daml_lf_version))]]
-  pkg_db = ctx.attr.pkg_db[PackageDb]
-  root = ctx.actions.declare_file("ROOT")
-  for pkg in pkg_db.pkgs:
-    pkg_conf = ctx.actions.declare_file("{daml_lf_version}/{pkg_name}.conf".format(
-      daml_lf_version = pkg.daml_lf_version,
-      pkg_name = pkg.pkg_name
-    ))
-    dalf = ctx.actions.declare_file("{daml_lf_version}/{pkg_name}.dalf".format(
-      daml_lf_version = pkg.daml_lf_version,
-      pkg_name = pkg.pkg_name
-    ))
-    iface_files = [ctx.actions.declare_file("{daml_lf_version}/{pkg_name}/{module}.hi".format(daml_lf_version = pkg.daml_lf_version, pkg_name = pkg.pkg_name, module = module.replace(".", "/"))) for module in pkg.modules]
-    db_files = db_files + [pkg_conf, dalf] + iface_files
-  ctx.actions.run_shell(
-    inputs = [pkg_db.tar],
-    outputs = [root] + db_files,
-    command =
-    """
+    db_files = [
+        f
+        for daml_lf_version in ctx.attr.daml_lf_versions
+        for f in [
+            ctx.actions.declare_file("{daml_lf_version}/package.cache".format(daml_lf_version = daml_lf_version)),
+            ctx.actions.declare_file("{daml_lf_version}/package.cache.lock".format(daml_lf_version = daml_lf_version)),
+        ]
+    ]
+    pkg_db = ctx.attr.pkg_db[PackageDb]
+    root = ctx.actions.declare_file("ROOT")
+    for pkg in pkg_db.pkgs:
+        pkg_conf = ctx.actions.declare_file("{daml_lf_version}/{pkg_name}.conf".format(
+            daml_lf_version = pkg.daml_lf_version,
+            pkg_name = pkg.pkg_name,
+        ))
+        dalf = ctx.actions.declare_file("{daml_lf_version}/{pkg_name}.dalf".format(
+            daml_lf_version = pkg.daml_lf_version,
+            pkg_name = pkg.pkg_name,
+        ))
+        iface_files = [ctx.actions.declare_file("{daml_lf_version}/{pkg_name}/{module}.hi".format(daml_lf_version = pkg.daml_lf_version, pkg_name = pkg.pkg_name, module = module.replace(".", "/"))) for module in pkg.modules]
+        db_files = db_files + [pkg_conf, dalf] + iface_files
+    ctx.actions.run_shell(
+        inputs = [pkg_db.tar],
+        outputs = [root] + db_files,
+        command =
+            """
       touch {root_file}
       tar xf {db_tar} --strip-components=1 -C $(dirname {root_file})
     """.format(db_tar = pkg_db.tar.path, root_file = root.path),
-  )
-  return [
-    DefaultInfo(files = depset(db_files), runfiles = ctx.runfiles(files = db_files)),
-  ]
+    )
+    return [
+        DefaultInfo(files = depset(db_files), runfiles = ctx.runfiles(files = db_files)),
+    ]
 
 bundled_package_db = rule(
-  implementation = _bundled_package_db_impl,
-  attrs = {
-    "pkg_db": attr.label(
-      allow_files = False,
-      providers = [PackageDb],
-    ),
-    "daml_lf_versions": attr.string_list(),
-  },
+    implementation = _bundled_package_db_impl,
+    attrs = {
+        "pkg_db": attr.label(
+            allow_files = False,
+            providers = [PackageDb],
+        ),
+        "daml_lf_versions": attr.string_list(),
+    },
 )
diff --git a/daml-foundations/daml-ghc/util.bzl b/daml-foundations/daml-ghc/util.bzl
index 6bea5d09e6..ee094a307f 100644
--- a/daml-foundations/daml-ghc/util.bzl
+++ b/daml-foundations/daml-ghc/util.bzl
@@ -1,7 +1,7 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load ("//bazel_tools:haskell.bzl", "da_haskell_test")
+load("//bazel_tools:haskell.bzl", "da_haskell_test")
 
 def _daml_ghc_compile_test_impl(ctx):
     stack_opt = "-K" + ctx.attr.stack_limit if ctx.attr.stack_limit else ""
@@ -9,40 +9,42 @@ def _daml_ghc_compile_test_impl(ctx):
     script = """
       {damlc} compile {main} -o /dev/null +RTS {stack_opt} {heap_opt}
     """.format(
-      damlc = ctx.executable.damlc.short_path,
-      main = ctx.files.main[0].short_path,
-      stack_opt = stack_opt,
-      heap_opt = heap_opt,
+        damlc = ctx.executable.damlc.short_path,
+        main = ctx.files.main[0].short_path,
+        stack_opt = stack_opt,
+        heap_opt = heap_opt,
     )
     ctx.actions.write(
         output = ctx.outputs.executable,
         content = script,
     )
+
     # To ensure the files needed by the script are available, we put them in
     # the runfiles.
-    runfiles = ctx.runfiles(files =
-        ctx.files.srcs + ctx.files.main
-      + [ctx.executable.damlc]
+    runfiles = ctx.runfiles(
+        files =
+            ctx.files.srcs + ctx.files.main +
+            [ctx.executable.damlc],
     )
     return [DefaultInfo(
-      runfiles = runfiles
+        runfiles = runfiles,
     )]
 
 daml_ghc_compile_test = rule(
-  implementation = _daml_ghc_compile_test_impl,
-  attrs = {
-    "srcs": attr.label_list(allow_files = True),
-    "main": attr.label(allow_files = True),
-    "damlc": attr.label(
-      default = Label("//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app"),
-      executable = True,
-      cfg = "target",
-      allow_files = True
-    ),
-    "stack_limit": attr.string(),
-    "heap_limit": attr.string(),
-  },
-  test = True,
+    implementation = _daml_ghc_compile_test_impl,
+    attrs = {
+        "srcs": attr.label_list(allow_files = True),
+        "main": attr.label(allow_files = True),
+        "damlc": attr.label(
+            default = Label("//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app"),
+            executable = True,
+            cfg = "target",
+            allow_files = True,
+        ),
+        "stack_limit": attr.string(),
+        "heap_limit": attr.string(),
+    },
+    test = True,
 )
 
 def daml_ghc_integration_test(name, main_function):
@@ -52,48 +54,47 @@ def daml_ghc_integration_test(name, main_function):
         src_strip_prefix = "src",
         main_function = main_function,
         data = [
-        "//daml-foundations/daml-ghc/package-database:package-db"
-        , "//compiler/scenario-service/server:scenario_service_jar"
-        , "@jq//:bin"
-        , ":tests"
-        , ":bond-trading"
+            "//daml-foundations/daml-ghc/package-database:package-db",
+            "//compiler/scenario-service/server:scenario_service_jar",
+            "@jq//:bin",
+            ":tests",
+            ":bond-trading",
         ],
         deps = [
-          ":daml-ghc-lib"
-        , "//compiler/daml-lf-ast"
-        , "//daml-lf/archive:daml_lf_haskell_proto"
-        , "//libs-haskell/da-hs-pretty"
-        , "//libs-haskell/da-hs-base"
-        , "//libs-haskell/prettyprinter-syntax"
-        , "//compiler/haskell-ide-core"
-        , "//libs-haskell/da-hs-language-server"
+            ":daml-ghc-lib",
+            "//compiler/daml-lf-ast",
+            "//daml-lf/archive:daml_lf_haskell_proto",
+            "//libs-haskell/da-hs-pretty",
+            "//libs-haskell/da-hs-base",
+            "//libs-haskell/prettyprinter-syntax",
+            "//compiler/haskell-ide-core",
+            "//libs-haskell/da-hs-language-server",
         ],
         hazel_deps = [
-          "aeson",
-          "base",
-          "bytestring",
-          "containers",
-          "deepseq",
-          "directory",
-          "dlist",
-          "extra",
-          "filepath",
-          "ghc-lib",
-          "ghc-lib-parser",
-          "lens",
-          "lens-aeson",
-          "managed",
-          "optparse-applicative",
-          "process",
-          "shake",
-          "tagged",
-          "tasty",
-          "tasty-hunit",
-          "text",
-          "time",
+            "aeson",
+            "base",
+            "bytestring",
+            "containers",
+            "deepseq",
+            "directory",
+            "dlist",
+            "extra",
+            "filepath",
+            "ghc-lib",
+            "ghc-lib-parser",
+            "lens",
+            "lens-aeson",
+            "managed",
+            "optparse-applicative",
+            "process",
+            "shake",
+            "tagged",
+            "tasty",
+            "tasty-hunit",
+            "text",
+            "time",
         ],
         visibility = ["//visibility:public"],
         # TODO fix flakiness, see #990
         flaky = True,
     )
-
diff --git a/daml-foundations/daml-tools/BUILD.bazel b/daml-foundations/daml-tools/BUILD.bazel
index c58174bb7c..68b50096d5 100644
--- a/daml-foundations/daml-tools/BUILD.bazel
+++ b/daml-foundations/daml-tools/BUILD.bazel
@@ -2,6 +2,6 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//rules_daml:daml.bzl",
-  "daml_compile"
+    "//rules_daml:daml.bzl",
+    "daml_compile",
 )
diff --git a/daml-foundations/daml-tools/da-hs-daml-cli/BUILD.bazel b/daml-foundations/daml-tools/da-hs-daml-cli/BUILD.bazel
index 13317438c1..2a209ae7bd 100644
--- a/daml-foundations/daml-tools/da-hs-daml-cli/BUILD.bazel
+++ b/daml-foundations/daml-tools/da-hs-daml-cli/BUILD.bazel
@@ -1,99 +1,94 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load ("//bazel_tools:haskell.bzl", "da_haskell_library", "da_haskell_test")
+load("//bazel_tools:haskell.bzl", "da_haskell_library", "da_haskell_test")
 
-da_haskell_library (
-    name = "da-hs-daml-cli"
-  , extra_srcs = [
-    "//daml-foundations/daml-tools/docs/daml-licenses/licenses:licensing.md"
-  ]
-  , srcs = glob (["DA/**/*.hs"])
-  , hazel_deps = [
-      "aeson",
-      "aeson-pretty",
-      "ansi-wl-pprint",
-      "base",
-      "bytestring",
-      "containers",
-      "cryptonite",
-      "directory",
-      "extra",
-      "file-embed",
-      "filepath",
-      "ghc-lib",
-      "gitrev",
-      "lens",
-      "lens-aeson",
-      "managed",
-      "memory",
-      "mtl",
-      "network",
-      "optparse-applicative",
-      "prettyprinter",
-      "safe-exceptions",
-      "shake",
-      "split",
-      "tasty",
-      "tasty-ant-xml",
-      "tasty-hunit",
-      "text",
-      "vector",
-      "xml",
-      "yaml",
-      "zip-archive"
-  ]
-  , deps = [
-      "//compiler/daml-lf-ast"
-    , "//compiler/daml-lf-proto"
-    , "//compiler/daml-lf-tools"
-    , "//daml-lf/archive:daml_lf_haskell_proto"
-    , "//libs-haskell/da-hs-base"
-    , "//libs-haskell/da-hs-pretty"
-    , "//libs-haskell/prettyprinter-syntax"
-    , "//compiler/haskell-ide-core"
-    , "//compiler/scenario-service/client"
-    , "//compiler/scenario-service/protos:scenario_service_haskell_proto"
-    , "//daml-foundations/daml-ghc:daml-ghc-lib"
-    , "//:sdk-version-hs-lib"
-    , "//nix/third-party/proto3-suite:proto3-suite"
-    , "//daml-assistant:daml-project-config"
-  ]
-  , visibility = ["//visibility:public"]
+da_haskell_library(
+    name = "da-hs-daml-cli",
+    srcs = glob(["DA/**/*.hs"]),
+    extra_srcs = [
+        "//daml-foundations/daml-tools/docs/daml-licenses/licenses:licensing.md",
+    ],
+    hazel_deps = [
+        "aeson",
+        "aeson-pretty",
+        "ansi-wl-pprint",
+        "base",
+        "bytestring",
+        "containers",
+        "cryptonite",
+        "directory",
+        "extra",
+        "file-embed",
+        "filepath",
+        "ghc-lib",
+        "gitrev",
+        "lens",
+        "lens-aeson",
+        "managed",
+        "memory",
+        "mtl",
+        "network",
+        "optparse-applicative",
+        "prettyprinter",
+        "safe-exceptions",
+        "shake",
+        "split",
+        "tasty",
+        "tasty-ant-xml",
+        "tasty-hunit",
+        "text",
+        "vector",
+        "xml",
+        "yaml",
+        "zip-archive",
+    ],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//:sdk-version-hs-lib",
+        "//compiler/daml-lf-ast",
+        "//compiler/daml-lf-proto",
+        "//compiler/daml-lf-tools",
+        "//compiler/haskell-ide-core",
+        "//compiler/scenario-service/client",
+        "//compiler/scenario-service/protos:scenario_service_haskell_proto",
+        "//daml-assistant:daml-project-config",
+        "//daml-foundations/daml-ghc:daml-ghc-lib",
+        "//daml-lf/archive:daml_lf_haskell_proto",
+        "//libs-haskell/da-hs-base",
+        "//libs-haskell/da-hs-pretty",
+        "//libs-haskell/prettyprinter-syntax",
+        "//nix/third-party/proto3-suite",
+    ],
 )
 
 da_haskell_test(
     name = "da-hs-daml-cli-tests",
     srcs = ["tests/Cli.hs"],
-    deps = [
-           ":da-hs-daml-cli",
-    ],
     data = [
-      "//daml-foundations/daml-ghc/package-database:package-db"
-      , "//compiler/scenario-service/server:scenario_service_jar"
+        "//compiler/scenario-service/server:scenario_service_jar",
+        "//daml-foundations/daml-ghc/package-database:package-db",
     ],
-    hazel_deps = [
-         "tasty",
-         "base",
-         "tasty-hunit",
-    ],
-    visibility = ["//visibility:private"],
-    main_function = "Cli.main",
     # TODO remove flakiness, see #990
     flaky = True,
+    hazel_deps = [
+        "tasty",
+        "base",
+        "tasty-hunit",
+    ],
+    main_function = "Cli.main",
+    visibility = ["//visibility:private"],
+    deps = [
+        ":da-hs-daml-cli",
+    ],
 )
 
 da_haskell_test(
     name = "damlc-test-tests",
     srcs = ["tests/DamlcTest.hs"],
-    deps = [
-        ":da-hs-daml-cli",
-        "//daml-foundations/daml-ghc:daml-ghc-lib",
-        "//libs-haskell/da-hs-base",
-    ],
     data = [
-        "//daml-foundations/daml-ghc/package-database:package-db",
         "//compiler/scenario-service/server:scenario_service_jar",
+        "//daml-foundations/daml-ghc/package-database:package-db",
     ],
     hazel_deps = [
         "base",
@@ -101,6 +96,11 @@ da_haskell_test(
         "tasty",
         "tasty-hunit",
     ],
-    visibility = ["//visibility:private"],
     main_function = "DamlcTest.main",
+    visibility = ["//visibility:private"],
+    deps = [
+        ":da-hs-daml-cli",
+        "//daml-foundations/daml-ghc:daml-ghc-lib",
+        "//libs-haskell/da-hs-base",
+    ],
 )
diff --git a/daml-foundations/daml-tools/da-hs-damlc-app/BUILD.bazel b/daml-foundations/daml-tools/da-hs-damlc-app/BUILD.bazel
index ee44374b8a..ec45d8f619 100644
--- a/daml-foundations/daml-tools/da-hs-damlc-app/BUILD.bazel
+++ b/daml-foundations/daml-tools/da-hs-damlc-app/BUILD.bazel
@@ -1,85 +1,83 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load ("//bazel_tools:haskell.bzl", "da_haskell_binary")
-load ("//bazel_tools:packaging/packaging.bzl", "package_app")
+load("//bazel_tools:haskell.bzl", "da_haskell_binary")
+load("//bazel_tools:packaging/packaging.bzl", "package_app")
 
-da_haskell_binary (
-    name = "da-hs-damlc-app"
-  , src_strip_prefix = "src"
-  , srcs = ['src/Main.hs']
-  , deps = [
-    "//daml-foundations/daml-tools/da-hs-daml-cli"
-  ]
-  , hazel_deps = [
-      "base"
-  ]
-  , data = [
-    "//daml-foundations/daml-ghc/package-database:package-db"
-    , "//compiler/scenario-service/server:scenario_service_jar"
-  ]
-  , visibility = ["//visibility:public"]
-  , linkstatic = True
+da_haskell_binary(
+    name = "da-hs-damlc-app",
+    srcs = ["src/Main.hs"],
+    data = [
+        "//compiler/scenario-service/server:scenario_service_jar",
+        "//daml-foundations/daml-ghc/package-database:package-db",
+    ],
+    hazel_deps = [
+        "base",
+    ],
+    linkstatic = True,
+    src_strip_prefix = "src",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//daml-foundations/daml-tools/da-hs-daml-cli",
+    ],
 )
 
-da_haskell_binary (
-    name = "da-hs-damlc-app-deprecated"
-  , src_strip_prefix = "src"
-  , srcs = ['src/Main.hs']
-  , deps = [
-    "//daml-foundations/daml-tools/da-hs-daml-cli"
-  ]
-  , hazel_deps = [
-      "base"
-  ]
-  , data = [
-    "//daml-foundations/daml-ghc/package-database/deprecated:package-db"
-    , "//compiler/scenario-service/server:scenario_service_jar"
-  ]
-  , visibility = ["//visibility:public"]
-  , linkstatic = True
+da_haskell_binary(
+    name = "da-hs-damlc-app-deprecated",
+    srcs = ["src/Main.hs"],
+    data = [
+        "//compiler/scenario-service/server:scenario_service_jar",
+        "//daml-foundations/daml-ghc/package-database/deprecated:package-db",
+    ],
+    hazel_deps = [
+        "base",
+    ],
+    linkstatic = True,
+    src_strip_prefix = "src",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//daml-foundations/daml-tools/da-hs-daml-cli",
+    ],
 )
 
-da_haskell_binary (
-    name = "damlc_bootstrap"
-  , src_strip_prefix = "src"
-  , srcs = ['src/Main.hs']
-  , deps = [
-    "//daml-foundations/daml-tools/da-hs-daml-cli"
-  ]
-  , hazel_deps = [
-      "base"
-  ]
-  , visibility = ["//visibility:public"]
+da_haskell_binary(
+    name = "damlc_bootstrap",
+    srcs = ["src/Main.hs"],
+    hazel_deps = [
+        "base",
+    ],
+    src_strip_prefix = "src",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//daml-foundations/daml-tools/da-hs-daml-cli",
+    ],
 )
 
-
 package_app(
-    name = "damlc-dist"
-  , binary = ":da-hs-damlc-app"
-  , resources = [
-      "//compiler/scenario-service/server:scenario_service_jar"
-    , "//daml-foundations/daml-ghc/package-database:package-db"
-    , "//daml-foundations/daml-ghc/package-database:gen-daml-prim.dar"
-  ]
-  , visibility = ["//visibility:public"]
-  , tags = ["no-cache"]
+    name = "damlc-dist",
+    binary = ":da-hs-damlc-app",
+    resources = [
+        "//compiler/scenario-service/server:scenario_service_jar",
+        "//daml-foundations/daml-ghc/package-database:gen-daml-prim.dar",
+        "//daml-foundations/daml-ghc/package-database:package-db",
+    ],
+    tags = ["no-cache"],
+    visibility = ["//visibility:public"],
 )
 
 sh_test(
-    name = "dist-test"
-  , srcs = ["test/check-dist.sh"]
-  , data = [
-      ":damlc-dist.tar.gz"
-    , ":test/Main.daml"
-    , "@tar_nix//:bin/tar"
-    , "@gzip_nix//:bin/gzip"
-  ]
-  , args = [
-      "$(location :damlc-dist.tar.gz)"
-    , "$(location :test/Main.daml)"
-    , "$(location @tar_nix//:bin/tar)"
-    , "$(location @gzip_nix//:bin/gzip)"
-  ]
+    name = "dist-test",
+    srcs = ["test/check-dist.sh"],
+    args = [
+        "$(location :damlc-dist.tar.gz)",
+        "$(location :test/Main.daml)",
+        "$(location @tar_nix//:bin/tar)",
+        "$(location @gzip_nix//:bin/gzip)",
+    ],
+    data = [
+        ":damlc-dist.tar.gz",
+        ":test/Main.daml",
+        "@gzip_nix//:bin/gzip",
+        "@tar_nix//:bin/tar",
+    ],
 )
-
diff --git a/daml-foundations/daml-tools/da-hs-damli-app/BUILD.bazel b/daml-foundations/daml-tools/da-hs-damli-app/BUILD.bazel
index d663de27f5..238e5e4b72 100644
--- a/daml-foundations/daml-tools/da-hs-damli-app/BUILD.bazel
+++ b/daml-foundations/daml-tools/da-hs-damli-app/BUILD.bazel
@@ -1,35 +1,34 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load ("//bazel_tools:haskell.bzl", "da_haskell_binary")
-load ("//bazel_tools:packaging/packaging.bzl", "package_app")
+load("//bazel_tools:haskell.bzl", "da_haskell_binary")
+load("//bazel_tools:packaging/packaging.bzl", "package_app")
 
-da_haskell_binary (
-    name = "damli"
-  , src_strip_prefix = "src"
-  , srcs = ['src/Main.hs']
-  , deps = [
-    "//daml-foundations/daml-tools/da-hs-daml-cli:da-hs-daml-cli"
-  ]
-  , hazel_deps = [
-      "base"
-  ]
-  , data = [
-    "//daml-foundations/daml-ghc/package-database:package-db"
-    , "//compiler/scenario-service/server:scenario_service_jar"
-  ]
-  , visibility = ["//visibility:public"]
-  , linkstatic = True
+da_haskell_binary(
+    name = "damli",
+    srcs = ["src/Main.hs"],
+    data = [
+        "//compiler/scenario-service/server:scenario_service_jar",
+        "//daml-foundations/daml-ghc/package-database:package-db",
+    ],
+    hazel_deps = [
+        "base",
+    ],
+    linkstatic = True,
+    src_strip_prefix = "src",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//daml-foundations/daml-tools/da-hs-daml-cli",
+    ],
 )
 
 package_app(
-    name = "dist"
-  , binary = ":damli"
-  , resources = [
-        "//compiler/scenario-service/server:scenario_service_jar"
-      , "//daml-foundations/daml-ghc/package-database:package-db"
-  ]
-  , visibility = ["//visibility:public"]
-  , tags = ["no-cache"]
+    name = "dist",
+    binary = ":damli",
+    resources = [
+        "//compiler/scenario-service/server:scenario_service_jar",
+        "//daml-foundations/daml-ghc/package-database:package-db",
+    ],
+    tags = ["no-cache"],
+    visibility = ["//visibility:public"],
 )
-
diff --git a/daml-foundations/daml-tools/daml-extension/BUILD.bazel b/daml-foundations/daml-tools/daml-extension/BUILD.bazel
index 837f2db10a..c1060177c0 100644
--- a/daml-foundations/daml-tools/daml-extension/BUILD.bazel
+++ b/daml-foundations/daml-tools/daml-extension/BUILD.bazel
@@ -1,7 +1,8 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-package(default_visibility=["//visibility:public"])
+package(default_visibility = ["//visibility:public"])
+
 load("@build_bazel_rules_typescript//:defs.bzl", "ts_library")
 load("@build_bazel_rules_nodejs//:defs.bzl", "npm_package")
 load("//bazel_tools:pkg.bzl", "pkg_tar")
@@ -16,48 +17,47 @@ ts_library(
     tsconfig = ":tsconfig.json",
 )
 
-
 # With this rule we get access to extension.js, as
 # the ts_library only has the .d.ts file in the outputs.
 # Could possibly also use filegroup, which allows specifying
 # the output group (es5_source).
 npm_package(
-  name = "out", # named out, so it goes to same place as before
-  deps = [
-    ":daml_extension_lib",
-  ]
+    name = "out",  # named out, so it goes to same place as before
+    deps = [
+        ":daml_extension_lib",
+    ],
 )
 
 pkg_tar(
-  name = "dot-dist",
-  extension = "tar.gz",
-  mode = "0755",
-  package_dir = "daml-extension",
-  remap_paths = {
-    "../daml_extension_deps/node_modules": "node_modules"
-  },
-  strip_prefix = "./",
-  srcs = glob([
-    "package.json",
-    "syntaxes/*",
-    "snippets/*",
-    "images/*",
-    "*.json",
-    "README.md",
-  ]) + [
-    ":out",
-    "@daml_extension_deps//vscode-jsonrpc:vscode-jsonrpc",
-    "@daml_extension_deps//vscode-languageclient:vscode-languageclient",
-    "@daml_extension_deps//vscode-languageserver-types:vscode-languageserver-types",
-    "@daml_extension_deps//which:which",
-  ],
+    name = "dot-dist",
+    srcs = glob([
+        "package.json",
+        "syntaxes/*",
+        "snippets/*",
+        "images/*",
+        "*.json",
+        "README.md",
+    ]) + [
+        ":out",
+        "@daml_extension_deps//vscode-jsonrpc:vscode-jsonrpc",
+        "@daml_extension_deps//vscode-languageclient:vscode-languageclient",
+        "@daml_extension_deps//vscode-languageserver-types:vscode-languageserver-types",
+        "@daml_extension_deps//which:which",
+    ],
+    extension = "tar.gz",
+    mode = "0755",
+    package_dir = "daml-extension",
+    remap_paths = {
+        "../daml_extension_deps/node_modules": "node_modules",
+    },
+    strip_prefix = "./",
 )
 
 # NOTE(MH): The `pkg_tar` rule puts a `.` at the beginning of every path, which
 # would break assumptions made in the sdk assistant. Hence we need to repack
 # the tarball to get rid of the `.`.
 genrule(
-    name = 'dist',
+    name = "dist",
     srcs = [":dot-dist"],
     outs = ["dist.tar.gz"],
     cmd = """
diff --git a/daml-foundations/daml-tools/damlc-jar/BUILD.bazel b/daml-foundations/daml-tools/damlc-jar/BUILD.bazel
index 97ff148b0c..4bb052634b 100644
--- a/daml-foundations/daml-tools/damlc-jar/BUILD.bazel
+++ b/daml-foundations/daml-tools/damlc-jar/BUILD.bazel
@@ -4,44 +4,44 @@
 load("//bazel_tools:java.bzl", "da_java_binary")
 
 java_library(
-  name = 'damlc_library_jar',
-  srcs = glob(['src/**/*.java']),
-  resource_jars = [
-    ":damlc-dist-resource-jar"
-  ],
-  visibility = ["//visibility:public"]
+    name = "damlc_library_jar",
+    srcs = glob(["src/**/*.java"]),
+    resource_jars = [
+        ":damlc-dist-resource-jar",
+    ],
+    visibility = ["//visibility:public"],
 )
 
 da_java_binary(
-  name = 'damlc_jar',
-  main_class = "com.digitalasset.damlc.Runner",
-  runtime_deps = [":damlc_library_jar"],
-  visibility = ["//visibility:public"],
-  tags = ["maven_coordinates=com.digitalasset:damlc:__VERSION__"],
+    name = "damlc_jar",
+    main_class = "com.digitalasset.damlc.Runner",
+    tags = ["maven_coordinates=com.digitalasset:damlc:__VERSION__"],
+    visibility = ["//visibility:public"],
+    runtime_deps = [":damlc_library_jar"],
 )
 
 alias(
-  name = "damlc",
-  actual = "damlc_jar_deploy.jar",
-  visibility = ["//visibility:public"]
+    name = "damlc",
+    actual = "damlc_jar_deploy.jar",
+    visibility = ["//visibility:public"],
 )
 
 genrule(
-  name = "damlc-dist-resource-jar",
-  outs = ["damlc-dist.jar"],
-  srcs = [
-    "//daml-foundations/daml-tools/da-hs-damlc-app:damlc-dist"
-  ],
-  tools = [
-    "@tar_nix//:bin/tar",
-    "@gzip_nix//:bin/gzip",
-    "@bazel_tools//tools/jdk:current_java_runtime"
-  ],
-  toolchains = ["@bazel_tools//tools/jdk:current_java_runtime"],
-  cmd = """
+    name = "damlc-dist-resource-jar",
+    srcs = [
+        "//daml-foundations/daml-tools/da-hs-damlc-app:damlc-dist",
+    ],
+    outs = ["damlc-dist.jar"],
+    cmd = """
     export PATH=$$PATH:`dirname $(location @tar_nix//:bin/tar)`:`dirname $(location @gzip_nix//:bin/gzip)`
     mkdir tmp
     tar xzf $< -C tmp
     $(JAVABASE)/bin/jar c0Mf $@ -C tmp .
-  """
+  """,
+    toolchains = ["@bazel_tools//tools/jdk:current_java_runtime"],
+    tools = [
+        "@bazel_tools//tools/jdk:current_java_runtime",
+        "@gzip_nix//:bin/gzip",
+        "@tar_nix//:bin/tar",
+    ],
 )
diff --git a/daml-foundations/daml-tools/docs/daml-contract-keys/BUILD.bazel b/daml-foundations/daml-tools/docs/daml-contract-keys/BUILD.bazel
index 029ff5b5dc..b07c832c32 100644
--- a/daml-foundations/daml-tools/docs/daml-contract-keys/BUILD.bazel
+++ b/daml-foundations/daml-tools/docs/daml-contract-keys/BUILD.bazel
@@ -1,7 +1,8 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load ("//bazel_tools:docs.bzl", "da_doc_package")
+load("//bazel_tools:docs.bzl", "da_doc_package")
+
 da_doc_package(
-  name = 'daml-contract-keys-quantities',
+    name = "daml-contract-keys-quantities",
 )
diff --git a/daml-foundations/daml-tools/docs/daml-lf-specification/BUILD.bazel b/daml-foundations/daml-tools/docs/daml-lf-specification/BUILD.bazel
index 92bb52b23a..42dfb941a4 100644
--- a/daml-foundations/daml-tools/docs/daml-lf-specification/BUILD.bazel
+++ b/daml-foundations/daml-tools/docs/daml-lf-specification/BUILD.bazel
@@ -2,6 +2,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load("//bazel_tools:docs.bzl", "da_doc_package")
+
 da_doc_package(
-  name = 'daml-lf-specification',
+    name = "daml-lf-specification",
 )
diff --git a/daml-foundations/daml-tools/docs/daml-licenses/BUILD.bazel b/daml-foundations/daml-tools/docs/daml-licenses/BUILD.bazel
index 3a862c2c60..307a24f615 100644
--- a/daml-foundations/daml-tools/docs/daml-licenses/BUILD.bazel
+++ b/daml-foundations/daml-tools/docs/daml-licenses/BUILD.bazel
@@ -8,5 +8,5 @@ load("//bazel_tools:docs.bzl", "da_doc_package")
 exports_files(["source/da-sdk-license.rst"])
 
 da_doc_package(
-  name = 'daml-licenses',
+    name = "daml-licenses",
 )
diff --git a/daml-foundations/daml-tools/docs/daml-licenses/licenses/BUILD.bazel b/daml-foundations/daml-tools/docs/daml-licenses/licenses/BUILD.bazel
index d78c4fb37c..b1977320fe 100644
--- a/daml-foundations/daml-tools/docs/daml-licenses/licenses/BUILD.bazel
+++ b/daml-foundations/daml-tools/docs/daml-licenses/licenses/BUILD.bazel
@@ -1,3 +1,3 @@
 exports_files(
-  [ 'licensing.md']
+    ["licensing.md"],
 )
diff --git a/daml-foundations/daml-tools/docs/time-model/BUILD.bazel b/daml-foundations/daml-tools/docs/time-model/BUILD.bazel
index 77f143c059..206a0f5d70 100644
--- a/daml-foundations/daml-tools/docs/time-model/BUILD.bazel
+++ b/daml-foundations/daml-tools/docs/time-model/BUILD.bazel
@@ -2,6 +2,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load("//bazel_tools:docs.bzl", "da_doc_package")
+
 da_doc_package(
     name = "time-model",
     extra_srcs = ["source/index.rst"],
@@ -9,5 +10,5 @@ da_doc_package(
         # Update version
         VERSION="HEAD"
         sed "s,__VERSION__,$$VERSION,g" -i $(location source/index.rst)
-    '''
+    ''',
 )
diff --git a/daml-foundations/daml-tools/language-server-tests/BUILD.bazel b/daml-foundations/daml-tools/language-server-tests/BUILD.bazel
index ce129be2bc..43e9ffd51f 100644
--- a/daml-foundations/daml-tools/language-server-tests/BUILD.bazel
+++ b/daml-foundations/daml-tools/language-server-tests/BUILD.bazel
@@ -2,13 +2,13 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load("@build_bazel_rules_typescript//:defs.bzl", "ts_library")
-load("@build_bazel_rules_nodejs//:defs.bzl", "npm_package", "nodejs_test")
+load("@build_bazel_rules_nodejs//:defs.bzl", "nodejs_test", "npm_package")
 
 ts_library(
     name = "lib",
     srcs = glob(["src/**/*.ts"]),
-    tsconfig = "src/tsconfig.json",
     node_modules = "@language_server_tests_deps//:node_modules",
+    tsconfig = "src/tsconfig.json",
 )
 
 # Wrap it in an npm package to make sure we get the generated JS.
@@ -19,22 +19,22 @@ npm_package(
 
 nodejs_test(
     name = "language-server-tests",
-    node_modules = "@language_server_tests_deps//:node_modules",
-    entry_point = "com_github_digital_asset_daml/daml-foundations/daml-tools/language-server-tests/runner.js",
+    # this test is fantastically unreliably, even with flaky TODO fix the flakyness
+    timeout = "long",
     data = [
-        ":lib-js",
         "runner.js",
+        ":lib-js",
         ":tests",
         "//daml-foundations/daml-tools/da-hs-damlc-app",
     ],
+    entry_point = "com_github_digital_asset_daml/daml-foundations/daml-tools/language-server-tests/runner.js",
+    flaky = True,
+    node_modules = "@language_server_tests_deps//:node_modules",
     templated_args = [
         "daml-foundations/daml-tools/language-server-tests/",
         "$(location //daml-foundations/daml-tools/da-hs-damlc-app)",
         "$(location :lib-js)/src/tests",
     ],
-    # this test is fantastically unreliably, even with flaky TODO fix the flakyness
-   timeout = "long",
-   flaky = True,
 )
 
 filegroup(
diff --git a/daml-lf/archive/BUILD.bazel b/daml-lf/archive/BUILD.bazel
index fb07c58799..d015604a46 100644
--- a/daml-lf/archive/BUILD.bazel
+++ b/daml-lf/archive/BUILD.bazel
@@ -4,25 +4,25 @@
 load("//bazel_tools:haskell.bzl", "da_haskell_library")
 load("//bazel_tools:pkg.bzl", "pkg_tar")
 load("//bazel_tools:proto.bzl", "proto_gen")
-
 load(
-  "//bazel_tools:scala.bzl",
-  "lf_scalacopts",
-  "da_scala_library",
-  "da_scala_binary",
-  "da_scala_test_suite",
+    "//bazel_tools:scala.bzl",
+    "da_scala_binary",
+    "da_scala_library",
+    "da_scala_test_suite",
+    "lf_scalacopts",
 )
-
 load(
-  '//rules_daml:daml.bzl',
-  'daml_compile',
+    "//rules_daml:daml.bzl",
+    "daml_compile",
 )
-
 load("//bazel_tools:pom_file.bzl", "pom_file")
-
 load("@os_info//:os_info.bzl", "is_windows")
 
-LF_MAJOR_VERSIONS = ['0', '1', 'dev']
+LF_MAJOR_VERSIONS = [
+    "0",
+    "1",
+    "dev",
+]
 
 filegroup(
     name = "daml-lf-archive-srcs",
@@ -30,146 +30,145 @@ filegroup(
     visibility = ["//visibility:public"],
 )
 
-exports_files (
-  ['da/daml_lf_%s.proto' % v for v in LF_MAJOR_VERSIONS]
+exports_files(
+    ["da/daml_lf_%s.proto" % v for v in LF_MAJOR_VERSIONS],
 )
 
-
 proto_library(
-  name = 'daml_lf_proto',
-  srcs = [':daml-lf-archive-srcs'],
-  proto_source_root = "daml-lf/archive",
-  visibility = ["//:__subpackages__"],
+    name = "daml_lf_proto",
+    srcs = [":daml-lf-archive-srcs"],
+    proto_source_root = "daml-lf/archive",
+    visibility = ["//:__subpackages__"],
 )
 
 proto_gen(
-  name = 'daml_lf_java_proto_srcs',
-  srcs = [ ':daml_lf_proto' ],
-  plugin_name = "java",
+    name = "daml_lf_java_proto_srcs",
+    srcs = [":daml_lf_proto"],
+    plugin_name = "java",
 )
 
 java_library(
-  name = "daml_lf_java_proto",
-  srcs = [':daml_lf_java_proto_srcs'],
-  deps = ['//3rdparty/jvm/com/google/protobuf:protobuf_java'],
-  exports = ['//3rdparty/jvm/com/google/protobuf:protobuf_java'],
-  visibility = ['//visibility:public'],
-  tags = ["maven_coordinates=com.digitalasset:daml-lf-archive:__VERSION__"],
+    name = "daml_lf_java_proto",
+    srcs = [":daml_lf_java_proto_srcs"],
+    tags = ["maven_coordinates=com.digitalasset:daml-lf-archive:__VERSION__"],
+    visibility = ["//visibility:public"],
+    exports = ["//3rdparty/jvm/com/google/protobuf:protobuf_java"],
+    deps = ["//3rdparty/jvm/com/google/protobuf:protobuf_java"],
 )
 
-
-
 # FIXME(JM): Clean this up
 genrule(
-  name = 'daml_lf_haskell_proto_src',
-  srcs = glob(['da/*.proto']),
-  outs = ['Da/DamlLf.hs'] + [ 'Da/DamlLf%s.hs' % v.title() for v in LF_MAJOR_VERSIONS ],
-  tools = [
-    '//nix/third-party/proto3-suite:compile-proto-file'
-  ],
-  cmd =
-    "ORIGPWD=`pwd`\ncd daml-lf/archive\n" +
-    "\n".join(
-      ['$$ORIGPWD/$(location //nix/third-party/proto3-suite:compile-proto-file) --proto da/daml_lf%s.proto --out $$ORIGPWD/$(@D)' % vx
-       for vx in [''] + ['_%s' % v for v in LF_MAJOR_VERSIONS]
-      ]
-    ),
+    name = "daml_lf_haskell_proto_src",
+    srcs = glob(["da/*.proto"]),
+    outs = ["Da/DamlLf.hs"] + ["Da/DamlLf%s.hs" % v.title() for v in LF_MAJOR_VERSIONS],
+    cmd =
+        "ORIGPWD=`pwd`\ncd daml-lf/archive\n" +
+        "\n".join(
+            [
+                "$$ORIGPWD/$(location //nix/third-party/proto3-suite:compile-proto-file) --proto da/daml_lf%s.proto --out $$ORIGPWD/$(@D)" % vx
+                for vx in [""] + ["_%s" % v for v in LF_MAJOR_VERSIONS]
+            ],
+        ),
+    tools = [
+        "//nix/third-party/proto3-suite:compile-proto-file",
+    ],
 )
 
 da_haskell_library(
-  name = 'daml_lf_haskell_proto',
-  srcs = [':daml_lf_haskell_proto_src'],
-  deps = [
-    '//nix/third-party/proto3-suite:proto3-suite',
-    '//nix/third-party/proto3-wire:proto3-wire'
-  ],
-  compiler_flags = ["-O0"], # disable optimization as this is otherwise way too slow to compile.
-  hazel_deps = [
-    'base',
-    'bytestring',
-    'deepseq',
-    'text',
-    'vector',
-  ],
-  visibility = ["//visibility:public"]
+    name = "daml_lf_haskell_proto",
+    srcs = [":daml_lf_haskell_proto_src"],
+    compiler_flags = ["-O0"],  # disable optimization as this is otherwise way too slow to compile.
+    hazel_deps = [
+        "base",
+        "bytestring",
+        "deepseq",
+        "text",
+        "vector",
+    ],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//nix/third-party/proto3-suite",
+        "//nix/third-party/proto3-wire",
+    ],
 )
 
-
-
 da_scala_library(
-  name = "daml_lf_archive_scala",
-  srcs = glob(['src/main/**/*.scala']),
-  # The daml_lf_dev.proto file is required for the 'dev' version
-  # has check.
-  resources = ['da/daml_lf_dev.proto'],
-  deps = [
-    "//daml-lf/data",
-    "//3rdparty/jvm/com/google/protobuf:protobuf_java",
-    "//3rdparty/jvm/org/scalaz:scalaz_core",
-    ":daml_lf_java_proto"
-  ],
-  scalacopts = lf_scalacopts,
-  visibility = ['//visibility:public'],
-  tags = ["maven_coordinates=com.digitalasset:daml-lf-archive-scala:__VERSION__"],
+    name = "daml_lf_archive_scala",
+    srcs = glob(["src/main/**/*.scala"]),
+    # The daml_lf_dev.proto file is required for the 'dev' version
+    # has check.
+    resources = ["da/daml_lf_dev.proto"],
+    scalacopts = lf_scalacopts,
+    tags = ["maven_coordinates=com.digitalasset:daml-lf-archive-scala:__VERSION__"],
+    visibility = ["//visibility:public"],
+    deps = [
+        ":daml_lf_java_proto",
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//daml-lf/data",
+    ],
 )
 
 da_scala_test_suite(
-  name = "daml_lf_archive_scala_tests",
-  srcs = glob(['src/test/**/*.scala']),
-  size = "small",
-  deps = [
-    ":daml_lf_archive_scala",
-    ":daml_lf_java_proto",
-    "//daml-lf/data",
-    "//3rdparty/jvm/com/google/protobuf:protobuf_java",
-    "//3rdparty/jvm/org/scalatest:scalatest",
-    "//3rdparty/jvm/org/scalacheck:scalacheck",
-    "//3rdparty/jvm/org/scalaz:scalaz_core",
-  ],
-  data = [
-    ":DarReaderTest.dar",
-    ":DarReaderTest.dalf",
-  ],
-  scalacopts = lf_scalacopts,
+    name = "daml_lf_archive_scala_tests",
+    size = "small",
+    srcs = glob(["src/test/**/*.scala"]),
+    data = [
+        ":DarReaderTest.dalf",
+        ":DarReaderTest.dar",
+    ],
+    scalacopts = lf_scalacopts,
+    deps = [
+        ":daml_lf_archive_scala",
+        ":daml_lf_java_proto",
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+        "//3rdparty/jvm/org/scalacheck",
+        "//3rdparty/jvm/org/scalatest",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//daml-lf/data",
+    ],
 )
 
 daml_compile(
-  name = "DarReaderTest",
-  main_src = "src/test/daml/DarReaderTest.daml",
+    name = "DarReaderTest",
+    main_src = "src/test/daml/DarReaderTest.daml",
 )
 
 filegroup(
-  name = "proto_srcs",
-  srcs = ['da/daml_lf.proto' ] + ['da/daml_lf_%s.proto' % v for v in LF_MAJOR_VERSIONS]
+    name = "proto_srcs",
+    srcs = ["da/daml_lf.proto"] + ["da/daml_lf_%s.proto" % v for v in LF_MAJOR_VERSIONS],
 )
 
 proto_library(
-  name = "daml_lf_proto_lib",
-  srcs = [':proto_srcs'],
-  proto_source_root = "daml-lf/archive"
+    name = "daml_lf_proto_lib",
+    srcs = [":proto_srcs"],
+    proto_source_root = "daml-lf/archive",
 )
 
 java_proto_library(
-  name = 'daml_lf_proto_lib_java',
-  deps = [':daml_lf_proto_lib'],
-  visibility = ['//visibility:public']
+    name = "daml_lf_proto_lib_java",
+    visibility = ["//visibility:public"],
+    deps = [":daml_lf_proto_lib"],
 )
 
 # NOTE(MH): The pre-bazel release process put the `.proto` files in
 # `daml-lf-archive.jar` as well. This rule is replicating this old behavior.
 # This will very likely change in the future to not include the `.proto` files.
 genrule(
-  name = 'daml_lf_archive_java',
-  srcs = [':proto_srcs', ':daml_lf_proto_lib_java'],
-  outs = ['daml_lf_archive_java.jar'],
-  tools = ["@zip_dev_env//:zip"],
-  cmd = """
+    name = "daml_lf_archive_java",
+    srcs = [
+        ":proto_srcs",
+        ":daml_lf_proto_lib_java",
+    ],
+    outs = ["daml_lf_archive_java.jar"],
+    cmd = """
     INPUT=$$(echo "$(locations :daml_lf_proto_lib_java)" | cut -d ' ' -f 1)
     cp -L $$INPUT $@
     chmod u+w $@
     $(location @zip_dev_env//:zip) -g $@ $(locations :proto_srcs)
   """,
-  tags = ["maven_coordinates=com.digitalasset:daml-lf-archive:__VERSION__"],
+    tags = ["maven_coordinates=com.digitalasset:daml-lf-archive:__VERSION__"],
+    tools = ["@zip_dev_env//:zip"],
 )
 
 pom_file(
@@ -178,22 +177,22 @@ pom_file(
 )
 
 genrule(
-  name = 'daml_lf_archive_protos_zip',
-  srcs = [':proto_srcs'],
-  outs= ['daml_lf_archive_protos_zip.zip'],
-  tools = ["@zip_dev_env//:zip"],
-  cmd = '''
+    name = "daml_lf_archive_protos_zip",
+    srcs = [":proto_srcs"],
+    outs = ["daml_lf_archive_protos_zip.zip"],
+    cmd = """
     mkdir -p daml-lf-archive-protos/protobuf/com/digitalasset/daml_lf
     cp $(SRCS) daml-lf-archive-protos/protobuf/com/digitalasset/daml_lf
     $(location @zip_dev_env//:zip) -r $@ daml-lf-archive-protos
-  ''',
-  visibility = ['//visibility:public'],
+  """,
+    tools = ["@zip_dev_env//:zip"],
+    visibility = ["//visibility:public"],
 )
 
 pkg_tar(
-  name = 'daml_lf_archive_protos_tarball',
-  extension = "tar.gz",
-  package_dir = "daml-lf-archive-protos/protobuf/com/digitalasset/daml_lf",
-  srcs = [':proto_srcs'],
-  visibility = ['//visibility:public'],
+    name = "daml_lf_archive_protos_tarball",
+    srcs = [":proto_srcs"],
+    extension = "tar.gz",
+    package_dir = "daml-lf-archive-protos/protobuf/com/digitalasset/daml_lf",
+    visibility = ["//visibility:public"],
 )
diff --git a/daml-lf/data/BUILD.bazel b/daml-lf/data/BUILD.bazel
index 31f4ecbab7..094cb26c2f 100644
--- a/daml-lf/data/BUILD.bazel
+++ b/daml-lf/data/BUILD.bazel
@@ -2,37 +2,36 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//bazel_tools:scala.bzl",
-  "lf_scalacopts",
-  "da_scala_library",
-  "da_scala_test",
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
+    "da_scala_test",
+    "lf_scalacopts",
 )
 
 da_scala_library(
-  name = "data",
-  srcs = glob(["src/main/**/*.scala"]),
-  deps = [
-    "//daml-lf/archive:daml_lf_java_proto",
-    "//3rdparty/jvm/org/scalaz:scalaz_core",
-    "//3rdparty/jvm/com/google/protobuf:protobuf_java",
-  ],
-  scalacopts = lf_scalacopts,
-  visibility = [
-    "//visibility:public",
-  ],
-  tags = ["maven_coordinates=com.digitalasset:daml-lf-data:__VERSION__"],
+    name = "data",
+    srcs = glob(["src/main/**/*.scala"]),
+    scalacopts = lf_scalacopts,
+    tags = ["maven_coordinates=com.digitalasset:daml-lf-data:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
+    deps = [
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//daml-lf/archive:daml_lf_java_proto",
+    ],
 )
 
 da_scala_test(
-  name = "data-test",
-  srcs = glob(["src/test/**/*.scala"]),
-  size = "small",
-  deps = [
-    ":data",
-    "//3rdparty/jvm/org/scalaz:scalaz_core",
-    "//3rdparty/jvm/org/scalaz:scalaz_scalacheck_binding",
-    "//3rdparty/jvm/org/scalacheck:scalacheck",
-  ],
-  scalacopts = lf_scalacopts,
+    name = "data-test",
+    size = "small",
+    srcs = glob(["src/test/**/*.scala"]),
+    scalacopts = lf_scalacopts,
+    deps = [
+        ":data",
+        "//3rdparty/jvm/org/scalacheck",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//3rdparty/jvm/org/scalaz:scalaz_scalacheck_binding",
+    ],
 )
-
diff --git a/daml-lf/engine/BUILD.bazel b/daml-lf/engine/BUILD.bazel
index e8f1d4d7fe..98a4d2ea31 100644
--- a/daml-lf/engine/BUILD.bazel
+++ b/daml-lf/engine/BUILD.bazel
@@ -3,15 +3,17 @@
 
 load(
     "//bazel_tools:scala.bzl",
-    "lf_scalacopts",
     "da_scala_binary",
     "da_scala_library",
     "da_scala_test",
+    "lf_scalacopts",
 )
 
 da_scala_library(
     name = "engine",
     srcs = glob(["src/main/**/*.scala"]),
+    scalacopts = lf_scalacopts,
+    tags = ["maven_coordinates=com.digitalasset:daml-lf-engine:__VERSION__"],
     visibility = ["//visibility:public"],
     deps = [
         "//3rdparty/jvm/com/google/protobuf:protobuf_java",
@@ -24,8 +26,6 @@ da_scala_library(
         "//daml-lf/lfpackage",
         "//daml-lf/transaction",
     ],
-    scalacopts = lf_scalacopts,
-    tags = ["maven_coordinates=com.digitalasset:daml-lf-engine:__VERSION__"],
 )
 
 # TODO(JM): It would make sense to break up the tests
@@ -43,6 +43,7 @@ da_scala_test(
         "//daml-lf/tests:LargeTransaction.dalf",
         "//daml-lf/tests:Optional.dalf",
     ],
+    scalacopts = lf_scalacopts,
     deps = [
         ":engine",
         "//3rdparty/jvm/com/storm_enroute:scalameter_core",
@@ -57,6 +58,4 @@ da_scala_test(
         "//daml-lf/scenario-interpreter",
         "//daml-lf/transaction",
     ],
-    scalacopts = lf_scalacopts,
 )
-
diff --git a/daml-lf/interface/BUILD.bazel b/daml-lf/interface/BUILD.bazel
index da9001849f..930fb829c3 100644
--- a/daml-lf/interface/BUILD.bazel
+++ b/daml-lf/interface/BUILD.bazel
@@ -3,19 +3,21 @@
 
 load(
     "//bazel_tools:scala.bzl",
-    "lf_scalacopts",
     "da_scala_library",
     "da_scala_test",
+    "lf_scalacopts",
 )
 
 da_scala_library(
     name = "interface",
     srcs = glob(["src/main/**/*.scala"]),
+    scalacopts = lf_scalacopts,
+    tags = ["maven_coordinates=com.digitalasset:daml-lf-interface:__VERSION__"],
     visibility = [
         "//daml-lf:__subpackages__",
-        "//language-support:__subpackages__",
         "//extractor:__subpackages__",
-        "//navigator:__subpackages__"
+        "//language-support:__subpackages__",
+        "//navigator:__subpackages__",
     ],
     deps = [
         "//3rdparty/jvm/com/google/protobuf:protobuf_java",
@@ -24,14 +26,13 @@ da_scala_library(
         "//daml-lf/archive:daml_lf_java_proto",
         "//daml-lf/data",
     ],
-    scalacopts = lf_scalacopts,
-    tags = ["maven_coordinates=com.digitalasset:daml-lf-interface:__VERSION__"],
 )
 
 da_scala_test(
     name = "tests",
     size = "small",
     srcs = glob(["src/test/**/*.scala"]),
+    scalacopts = lf_scalacopts,
     deps = [
         ":interface",
         "//3rdparty/jvm/com/google/protobuf:protobuf_java",
@@ -44,6 +45,4 @@ da_scala_test(
         "//daml-lf/lfpackage",
         "//daml-lf/parser",
     ],
-    scalacopts = lf_scalacopts,
 )
-
diff --git a/daml-lf/interpreter/BUILD.bazel b/daml-lf/interpreter/BUILD.bazel
index 4f129566f1..4df75fa8c0 100644
--- a/daml-lf/interpreter/BUILD.bazel
+++ b/daml-lf/interpreter/BUILD.bazel
@@ -13,6 +13,7 @@ da_scala_library(
     name = "interpreter",
     srcs = glob(["src/main/**/*.scala"]),
     scalacopts = lf_scalacopts,
+    tags = ["maven_coordinates=com.digitalasset:daml-lf-interpreter:__VERSION__"],
     visibility = [
         "//compiler/scenario-service:__subpackages__",
         "//daml-lf:__subpackages__",
@@ -28,7 +29,6 @@ da_scala_library(
         "//daml-lf/transaction",
         "//daml-lf/validation",
     ],
-    tags = ["maven_coordinates=com.digitalasset:daml-lf-interpreter:__VERSION__"],
 )
 
 da_scala_test_suite(
diff --git a/daml-lf/lfpackage/BUILD.bazel b/daml-lf/lfpackage/BUILD.bazel
index 04421414f6..1eeaa0f250 100644
--- a/daml-lf/lfpackage/BUILD.bazel
+++ b/daml-lf/lfpackage/BUILD.bazel
@@ -2,41 +2,39 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//bazel_tools:scala.bzl",
-  "lf_scalacopts",
-  "da_scala_library",
-  "da_scala_test",
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
+    "da_scala_test",
+    "lf_scalacopts",
 )
 
 da_scala_library(
-  name = "lfpackage",
-  srcs = glob(["src/main/**/*.scala"]),
-  deps = [
-    "//daml-lf/archive:daml_lf_java_proto",
-    "//daml-lf/archive:daml_lf_archive_scala",
-    "//daml-lf/data",
-    "//3rdparty/jvm/org/scalaz:scalaz_core",
-    "//3rdparty/jvm/com/google/protobuf:protobuf_java",
-  ],
-  scalacopts = lf_scalacopts,
-  visibility = ['//visibility:public'],
-  tags = ["maven_coordinates=com.digitalasset:daml-lf-package:__VERSION__"],
+    name = "lfpackage",
+    srcs = glob(["src/main/**/*.scala"]),
+    scalacopts = lf_scalacopts,
+    tags = ["maven_coordinates=com.digitalasset:daml-lf-package:__VERSION__"],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//daml-lf/archive:daml_lf_archive_scala",
+        "//daml-lf/archive:daml_lf_java_proto",
+        "//daml-lf/data",
+    ],
 )
 
-
 da_scala_test(
-  name = "lfpackage-test",
-  srcs = glob(["src/test/**/*.scala"]),
-  size = "small",
-  deps = [
-    ":lfpackage",
-    "//daml-lf/archive:daml_lf_archive_scala",
-    "//daml-lf/data",
-    "//daml-lf/archive:daml_lf_java_proto",
-    "//3rdparty/jvm/org/scalaz:scalaz_core",
-    "//3rdparty/jvm/org/scalacheck:scalacheck",
-    "//3rdparty/jvm/com/google/protobuf:protobuf_java",
-  ],
-  scalacopts = lf_scalacopts,
+    name = "lfpackage-test",
+    size = "small",
+    srcs = glob(["src/test/**/*.scala"]),
+    scalacopts = lf_scalacopts,
+    deps = [
+        ":lfpackage",
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+        "//3rdparty/jvm/org/scalacheck",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//daml-lf/archive:daml_lf_archive_scala",
+        "//daml-lf/archive:daml_lf_java_proto",
+        "//daml-lf/data",
+    ],
 )
-
diff --git a/daml-lf/repl/BUILD.bazel b/daml-lf/repl/BUILD.bazel
index 19e3a098fa..8b83253729 100644
--- a/daml-lf/repl/BUILD.bazel
+++ b/daml-lf/repl/BUILD.bazel
@@ -2,31 +2,29 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//bazel_tools:scala.bzl",
-  "da_scala_binary",
+    "//bazel_tools:scala.bzl",
+    "da_scala_binary",
 )
 
 da_scala_binary(
-  name = "repl",
-  srcs = glob(["src/main/**/*.scala"]),
-  main_class = 'com.digitalasset.daml.lf.speedy.Main',
-  deps = [
-    "//daml-lf/archive:daml_lf_java_proto",
-    "//daml-lf/archive:daml_lf_archive_scala",
-    "//daml-lf/data",
-    "//daml-lf/transaction",
-    "//daml-lf/lfpackage",
-    "//daml-lf/interpreter",
-    "//daml-lf/validation",
-    "//daml-lf/scenario-interpreter",
-
-    "//3rdparty/jvm/org/typelevel:paiges_core",
-    "//3rdparty/jvm/org/jline:jline",
-    "//3rdparty/jvm/org/scala_lang/modules:scala_parser_combinators",
-    "//3rdparty/jvm/org/scalaz:scalaz_core",
-    "//3rdparty/jvm/com/google/protobuf:protobuf_java",
-  ],
-  visibility = ['//visibility:public'],
-  tags = ["maven_coordinates=com.digitalasset:daml-lf-repl:__VERSION__"],
+    name = "repl",
+    srcs = glob(["src/main/**/*.scala"]),
+    main_class = "com.digitalasset.daml.lf.speedy.Main",
+    tags = ["maven_coordinates=com.digitalasset:daml-lf-repl:__VERSION__"],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+        "//3rdparty/jvm/org/jline",
+        "//3rdparty/jvm/org/scala_lang/modules:scala_parser_combinators",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//3rdparty/jvm/org/typelevel:paiges_core",
+        "//daml-lf/archive:daml_lf_archive_scala",
+        "//daml-lf/archive:daml_lf_java_proto",
+        "//daml-lf/data",
+        "//daml-lf/interpreter",
+        "//daml-lf/lfpackage",
+        "//daml-lf/scenario-interpreter",
+        "//daml-lf/transaction",
+        "//daml-lf/validation",
+    ],
 )
-
diff --git a/daml-lf/scenario-interpreter/BUILD.bazel b/daml-lf/scenario-interpreter/BUILD.bazel
index fe0924908f..001963c584 100644
--- a/daml-lf/scenario-interpreter/BUILD.bazel
+++ b/daml-lf/scenario-interpreter/BUILD.bazel
@@ -2,25 +2,24 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//bazel_tools:scala.bzl",
-  "da_scala_library",
-  "da_scala_binary",
-  "da_scala_test_suite",
+    "//bazel_tools:scala.bzl",
+    "da_scala_binary",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
 
 da_scala_library(
-  name = "scenario-interpreter",
-  srcs = glob(["src/main/**/*.scala"]),
-  main_class = 'com.digitalasset.daml.lf.speedy.Main',
-  deps = [
-    "//daml-lf/data",
-    "//daml-lf/transaction",
-    "//daml-lf/lfpackage",
-    "//daml-lf/interpreter",
-  ],
-  visibility = [
-    "//visibility:public"
-  ],
-  tags = ["maven_coordinates=com.digitalasset:daml-lf-scenario-interpreter:__VERSION__"],
+    name = "scenario-interpreter",
+    srcs = glob(["src/main/**/*.scala"]),
+    main_class = "com.digitalasset.daml.lf.speedy.Main",
+    tags = ["maven_coordinates=com.digitalasset:daml-lf-scenario-interpreter:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
+    deps = [
+        "//daml-lf/data",
+        "//daml-lf/interpreter",
+        "//daml-lf/lfpackage",
+        "//daml-lf/transaction",
+    ],
 )
-
diff --git a/daml-lf/testing-tools/BUILD.bazel b/daml-lf/testing-tools/BUILD.bazel
index b467571ed6..053e8dd572 100644
--- a/daml-lf/testing-tools/BUILD.bazel
+++ b/daml-lf/testing-tools/BUILD.bazel
@@ -2,55 +2,54 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//bazel_tools:scala.bzl",
-  "lf_scalacopts",
-  "da_scala_library",
-  "da_scala_test",
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
+    "da_scala_test",
+    "lf_scalacopts",
 )
 
 da_scala_library(
-  name = "testing-tools",
-  srcs  = glob(["src/main/**/*.scala"]),
-  deps = [
-    "//daml-lf/data",
-    "//daml-lf/transaction",
-    "//daml-lf/lfpackage",
-    "//daml-lf/interpreter",
-    "//daml-lf/engine",
-    "//daml-lf/scenario-interpreter",
-    "//daml-lf/archive:daml_lf_java_proto",
-    "//daml-lf/archive:daml_lf_archive_scala",
-    "//3rdparty/jvm/com/google/protobuf:protobuf_java",
-    "//3rdparty/jvm/org/scalaz:scalaz_core"
-  ],
-  scalacopts = lf_scalacopts,
-  visibility = ["//visibility:public"],
-  tags = ["maven_coordinates=com.digitalasset:daml-lf-engine-testing-tools:__VERSION__"],
+    name = "testing-tools",
+    srcs = glob(["src/main/**/*.scala"]),
+    scalacopts = lf_scalacopts,
+    tags = ["maven_coordinates=com.digitalasset:daml-lf-engine-testing-tools:__VERSION__"],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//daml-lf/archive:daml_lf_archive_scala",
+        "//daml-lf/archive:daml_lf_java_proto",
+        "//daml-lf/data",
+        "//daml-lf/engine",
+        "//daml-lf/interpreter",
+        "//daml-lf/lfpackage",
+        "//daml-lf/scenario-interpreter",
+        "//daml-lf/transaction",
+    ],
 )
 
 da_scala_test(
-  name = "engine-scenario-test",
-  srcs  = glob(["src/test/**/*.scala"]),
-  size = "large",
-  timeout = "long",
-  resources = [
-    "//daml-lf/tests:BasicTests.dalf",
-    "//daml-lf/tests:AuthorizedDivulgence.dalf",
-    "//daml-lf/tests:DontDiscloseNonConsumingChoicesToObservers.dalf",
-    "//daml-lf/tests:LargeTransaction.dalf",
-    "//daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf",
-  ],
-  deps = [
-    ":testing-tools",
-    "//daml-lf/interpreter:interpreter",
-    "//daml-lf/engine:engine",
-    "//daml-lf/data:data",
-    "//daml-lf/transaction:transaction",
-    "//daml-lf/lfpackage:lfpackage",
-    "//daml-lf/archive:daml_lf_java_proto",
-    "//daml-lf/archive:daml_lf_archive_scala",
-    "//3rdparty/jvm/org/scalaz:scalaz_core",
-  ],
-  scalacopts = lf_scalacopts,
+    name = "engine-scenario-test",
+    size = "large",
+    timeout = "long",
+    srcs = glob(["src/test/**/*.scala"]),
+    resources = [
+        "//daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf",
+        "//daml-lf/tests:AuthorizedDivulgence.dalf",
+        "//daml-lf/tests:BasicTests.dalf",
+        "//daml-lf/tests:DontDiscloseNonConsumingChoicesToObservers.dalf",
+        "//daml-lf/tests:LargeTransaction.dalf",
+    ],
+    scalacopts = lf_scalacopts,
+    deps = [
+        ":testing-tools",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//daml-lf/archive:daml_lf_archive_scala",
+        "//daml-lf/archive:daml_lf_java_proto",
+        "//daml-lf/data",
+        "//daml-lf/engine",
+        "//daml-lf/interpreter",
+        "//daml-lf/lfpackage",
+        "//daml-lf/transaction",
+    ],
 )
-
diff --git a/daml-lf/tests/BUILD.bazel b/daml-lf/tests/BUILD.bazel
index 888c107156..e85b76ac72 100644
--- a/daml-lf/tests/BUILD.bazel
+++ b/daml-lf/tests/BUILD.bazel
@@ -2,75 +2,75 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//rules_daml:daml.bzl",
-  "daml_compile"
+    "//rules_daml:daml.bzl",
+    "daml_compile",
 )
 
 TEST_FILES = \
-  [ "BasicTests"
-  , "AuthorizedDivulgence"
-  , "DontDiscloseNonConsumingChoicesToObservers"
-  , "LargeTransaction"
-  , "ConjunctionChoices"
-  ]
+    [
+        "BasicTests",
+        "AuthorizedDivulgence",
+        "DontDiscloseNonConsumingChoicesToObservers",
+        "LargeTransaction",
+        "ConjunctionChoices",
+    ]
 
 [
-  daml_compile(
-      name = name
-    , main_src = "%s.daml" % name
-    , visibility = ["//daml-lf:__subpackages__"]
-    , target = "1.3"
-    , damlc = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated"
-  )
-  for name in TEST_FILES
+    daml_compile(
+        name = name,
+        damlc = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated",
+        main_src = "%s.daml" % name,
+        target = "1.3",
+        visibility = ["//daml-lf:__subpackages__"],
+    )
+    for name in TEST_FILES
 ]
 
 daml_compile(
-    name = "Optional"
-  , main_src = "Optional.daml"
-  , target = "1.3"
-  , damlc = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated"
-  , visibility = ["//daml-lf:__subpackages__"]
+    name = "Optional",
+    damlc = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated",
+    main_src = "Optional.daml",
+    target = "1.3",
+    visibility = ["//daml-lf:__subpackages__"],
 )
 
-
 [
-  sh_test(
-    name = name + "-test",
-    srcs = ["daml-lf-test.sh"],
-    size = "small",
-    data = [
-      "//daml-lf/repl:repl",
-      "//daml-foundations/daml-tools/da-hs-damlc-app",
-      ":%s.dalf" % name
-    ],
-    args = [
-      "$(location //daml-lf/repl:repl)",
-      "$(location //daml-foundations/daml-tools/da-hs-damlc-app)",
-      "$(location :%s.dalf)" % name
-    ]
-  )
-  for name in TEST_FILES
+    sh_test(
+        name = name + "-test",
+        size = "small",
+        srcs = ["daml-lf-test.sh"],
+        args = [
+            "$(location //daml-lf/repl:repl)",
+            "$(location //daml-foundations/daml-tools/da-hs-damlc-app)",
+            "$(location :%s.dalf)" % name,
+        ],
+        data = [
+            "//daml-foundations/daml-tools/da-hs-damlc-app",
+            "//daml-lf/repl",
+            ":%s.dalf" % name,
+        ],
+    )
+    for name in TEST_FILES
 ]
 
 [
-  sh_test(
-   name = "test-scenario-1-3-" + file.split("/")[2],
-    srcs = ["scenario/test.sh"],
-    size = "small",
-    data = [
-      "//daml-lf/repl:repl",
-      "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated",
-      "//daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf",
-      file,
-      "%s/EXPECTED.ledger" % "/".join(file.split("/")[0:3]),
-    ],
-    args = [
-      "$(location //daml-lf/repl:repl)",
-      "$(location //daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated)",
-      "$(location :%s)" % file,
-      "$(location //daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf)"
-    ]
-  )
-  for file in glob(['scenario/daml-1.3/*/Test.daml'])
+    sh_test(
+        name = "test-scenario-1-3-" + file.split("/")[2],
+        size = "small",
+        srcs = ["scenario/test.sh"],
+        args = [
+            "$(location //daml-lf/repl:repl)",
+            "$(location //daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated)",
+            "$(location :%s)" % file,
+            "$(location //daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf)",
+        ],
+        data = [
+            "//daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf",
+            "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated",
+            "//daml-lf/repl",
+            file,
+            "%s/EXPECTED.ledger" % "/".join(file.split("/")[0:3]),
+        ],
+    )
+    for file in glob(["scenario/daml-1.3/*/Test.daml"])
 ]
diff --git a/daml-lf/transaction-scalacheck/BUILD.bazel b/daml-lf/transaction-scalacheck/BUILD.bazel
index 7bcfad2898..d7dee9d860 100644
--- a/daml-lf/transaction-scalacheck/BUILD.bazel
+++ b/daml-lf/transaction-scalacheck/BUILD.bazel
@@ -2,25 +2,24 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//bazel_tools:scala.bzl",
-  "lf_scalacopts",
-  "da_scala_library",
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
+    "lf_scalacopts",
 )
 
 da_scala_library(
-  name = "transaction-scalacheck",
-  srcs = glob(["src/main/**/*.scala"]),
-  deps = [
-    "//daml-lf/transaction",
-    "//daml-lf/transaction/src/main/protobuf:value_java_proto",
-    "//daml-lf/data",
-    "//3rdparty/jvm/org/scalaz:scalaz_core",
-    "//3rdparty/jvm/org/scalaz:scalaz_scalacheck_binding",
-    "//3rdparty/jvm/com/google/protobuf:protobuf_java",
-    "//3rdparty/jvm/org/scalacheck:scalacheck",
-  ],
-  scalacopts = lf_scalacopts,
-  visibility = ["//visibility:public"],
-  tags = ["maven_coordinates=com.digitalasset:daml-lf-transaction-scalacheck:__VERSION__"],
+    name = "transaction-scalacheck",
+    srcs = glob(["src/main/**/*.scala"]),
+    scalacopts = lf_scalacopts,
+    tags = ["maven_coordinates=com.digitalasset:daml-lf-transaction-scalacheck:__VERSION__"],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+        "//3rdparty/jvm/org/scalacheck",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//3rdparty/jvm/org/scalaz:scalaz_scalacheck_binding",
+        "//daml-lf/data",
+        "//daml-lf/transaction",
+        "//daml-lf/transaction/src/main/protobuf:value_java_proto",
+    ],
 )
-
diff --git a/daml-lf/transaction/BUILD.bazel b/daml-lf/transaction/BUILD.bazel
index 5c472abefe..5bfb76d384 100644
--- a/daml-lf/transaction/BUILD.bazel
+++ b/daml-lf/transaction/BUILD.bazel
@@ -2,47 +2,46 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//bazel_tools:scala.bzl",
-  "lf_scalacopts",
-  "da_scala_library",
-  "da_scala_test",
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
+    "da_scala_test",
+    "lf_scalacopts",
 )
 
 da_scala_library(
-  name = "transaction",
-  srcs = glob(["src/main/**/*.scala"]),
-  deps = [
-    "//daml-lf/transaction/src/main/protobuf:value_java_proto",
-    "//daml-lf/transaction/src/main/protobuf:transaction_java_proto",
-    "//daml-lf/transaction/src/main/protobuf:blindinginfo_java_proto",
-    "//daml-lf/archive:daml_lf_java_proto",
-    "//daml-lf/archive:daml_lf_archive_scala",
-    "//daml-lf/data",
-    "//3rdparty/jvm/org/scalaz:scalaz_core",
-    "//3rdparty/jvm/com/google/protobuf:protobuf_java",
-  ],
-  scalacopts = lf_scalacopts,
-  visibility = ["//visibility:public"],
-  tags = ["maven_coordinates=com.digitalasset:daml-lf-transaction:__VERSION__"],
+    name = "transaction",
+    srcs = glob(["src/main/**/*.scala"]),
+    scalacopts = lf_scalacopts,
+    tags = ["maven_coordinates=com.digitalasset:daml-lf-transaction:__VERSION__"],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//daml-lf/archive:daml_lf_archive_scala",
+        "//daml-lf/archive:daml_lf_java_proto",
+        "//daml-lf/data",
+        "//daml-lf/transaction/src/main/protobuf:blindinginfo_java_proto",
+        "//daml-lf/transaction/src/main/protobuf:transaction_java_proto",
+        "//daml-lf/transaction/src/main/protobuf:value_java_proto",
+    ],
 )
 
 da_scala_test(
-  name = "transaction-test",
-  srcs = glob(["src/test/**/*.scala"]),
-  size = "medium",
-  deps = [
-    ":transaction",
-    "//daml-lf/transaction/src/main/protobuf:value_java_proto",
-    "//daml-lf/transaction/src/main/protobuf:transaction_java_proto",
-    "//daml-lf/transaction/src/main/protobuf:blindinginfo_java_proto",
-    "//daml-lf/archive:daml_lf_archive_scala",
-    "//daml-lf/data",
-    "//daml-lf/transaction-scalacheck",
-    "//3rdparty/jvm/org/scalaz:scalaz_core",
-    "//3rdparty/jvm/org/scalaz:scalaz_scalacheck_binding",
-    "//3rdparty/jvm/com/google/protobuf:protobuf_java",
-    "//3rdparty/jvm/org/scalacheck:scalacheck",
-  ],
-  scalacopts = lf_scalacopts
+    name = "transaction-test",
+    size = "medium",
+    srcs = glob(["src/test/**/*.scala"]),
+    scalacopts = lf_scalacopts,
+    deps = [
+        ":transaction",
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+        "//3rdparty/jvm/org/scalacheck",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//3rdparty/jvm/org/scalaz:scalaz_scalacheck_binding",
+        "//daml-lf/archive:daml_lf_archive_scala",
+        "//daml-lf/data",
+        "//daml-lf/transaction-scalacheck",
+        "//daml-lf/transaction/src/main/protobuf:blindinginfo_java_proto",
+        "//daml-lf/transaction/src/main/protobuf:transaction_java_proto",
+        "//daml-lf/transaction/src/main/protobuf:value_java_proto",
+    ],
 )
-
diff --git a/daml-lf/transaction/src/main/protobuf/BUILD.bazel b/daml-lf/transaction/src/main/protobuf/BUILD.bazel
index b735842a3c..fc909b3bb1 100644
--- a/daml-lf/transaction/src/main/protobuf/BUILD.bazel
+++ b/daml-lf/transaction/src/main/protobuf/BUILD.bazel
@@ -4,17 +4,17 @@
 load("//bazel_tools:java.bzl", "da_java_proto_library")
 
 proto_library(
-  name = "value_proto",
-  srcs = ["com/digitalasset/daml/lf/value.proto"],
-  deps = ["@com_google_protobuf//:empty_proto"],
-  visibility = ['//visibility:public'],
+    name = "value_proto",
+    srcs = ["com/digitalasset/daml/lf/value.proto"],
+    visibility = ["//visibility:public"],
+    deps = ["@com_google_protobuf//:empty_proto"],
 )
 
 da_java_proto_library(
-  name = "value_java_proto",
-  deps = [":value_proto"],
-  visibility = ['//visibility:public'],
-  tags = ["maven_coordinates=com.digitalasset:daml-lf-value-java-proto:__VERSION__"],
+    name = "value_java_proto",
+    tags = ["maven_coordinates=com.digitalasset:daml-lf-value-java-proto:__VERSION__"],
+    visibility = ["//visibility:public"],
+    deps = [":value_proto"],
 )
 
 # FIXME(JM): This hack is not needed after we upgrade to latest Bazel which has the
@@ -23,32 +23,31 @@ genrule(
     name = "transaction_proto_patched",
     srcs = ["com/digitalasset/daml/lf/transaction.proto"],
     outs = ["transaction.proto"],
-    cmd = "sed $(SRCS) -e 's,import \"com,import \"daml-lf/transaction/src/main/protobuf/com,' > \"$@\""
+    cmd = "sed $(SRCS) -e 's,import \"com,import \"daml-lf/transaction/src/main/protobuf/com,' > \"$@\"",
 )
 
 proto_library(
-  name = "transaction_proto",
-  srcs = [":transaction_proto_patched"],
-  deps = [":value_proto"],
-  visibility = ['//visibility:public'],
+    name = "transaction_proto",
+    srcs = [":transaction_proto_patched"],
+    visibility = ["//visibility:public"],
+    deps = [":value_proto"],
 )
 
 da_java_proto_library(
-  name = "transaction_java_proto",
-  deps = [":transaction_proto"],
-  visibility = ['//visibility:public'],
-  tags = ["maven_coordinates=com.digitalasset:daml-lf-transaction-java-proto:__VERSION__"],
+    name = "transaction_java_proto",
+    tags = ["maven_coordinates=com.digitalasset:daml-lf-transaction-java-proto:__VERSION__"],
+    visibility = ["//visibility:public"],
+    deps = [":transaction_proto"],
 )
 
 proto_library(
-  name = "blindinginfo_proto",
-  srcs = ["com/digitalasset/daml/lf/blindinginfo.proto"]
+    name = "blindinginfo_proto",
+    srcs = ["com/digitalasset/daml/lf/blindinginfo.proto"],
 )
 
 da_java_proto_library(
-  name = "blindinginfo_java_proto",
-  deps = [":blindinginfo_proto"],
-  visibility = ['//visibility:public'],
-  tags = ["maven_coordinates=com.digitalasset:daml-lf-blindinginfo-java-proto:__VERSION__"],
+    name = "blindinginfo_java_proto",
+    tags = ["maven_coordinates=com.digitalasset:daml-lf-blindinginfo-java-proto:__VERSION__"],
+    visibility = ["//visibility:public"],
+    deps = [":blindinginfo_proto"],
 )
-
diff --git a/daml-lf/validation/BUILD.bazel b/daml-lf/validation/BUILD.bazel
index 13c27b51e3..ca947428e4 100644
--- a/daml-lf/validation/BUILD.bazel
+++ b/daml-lf/validation/BUILD.bazel
@@ -12,6 +12,7 @@ da_scala_library(
     name = "validation",
     srcs = glob(["src/main/**/*.scala"]),
     scalacopts = lf_scalacopts,
+    tags = ["maven_coordinates=com.digitalasset:daml-lf-validation:__VERSION__"],
     visibility = [
         "//compiler/scenario-service:__subpackages__",
         "//daml-lf:__subpackages__",
@@ -21,7 +22,6 @@ da_scala_library(
         "//daml-lf/data",
         "//daml-lf/lfpackage",
     ],
-    tags = ["maven_coordinates=com.digitalasset:daml-lf-validation:__VERSION__"],
 )
 
 da_scala_test(
diff --git a/deps.bzl b/deps.bzl
index 0d5e8f1503..6c63572a6a 100644
--- a/deps.bzl
+++ b/deps.bzl
@@ -35,154 +35,154 @@ load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 load("@bazel_tools//tools/build_defs/repo:git.bzl", "git_repository")
 
 def daml_deps():
-  if "io_tweag_rules_haskell" not in native.existing_rules():
-    http_archive(
-      name = "io_tweag_rules_haskell",
-      strip_prefix = 'rules_haskell-%s' % rules_haskell_version,
-      urls = ["https://github.com/tweag/rules_haskell/archive/%s.tar.gz" % rules_haskell_version],
-      patches = [
-        "@com_github_digital_asset_daml//bazel_tools:haskell-static-linking.patch",
-        "@com_github_digital_asset_daml//bazel_tools:haskell-win-sys-includes.patch",
-        "@com_github_digital_asset_daml//bazel_tools:haskell-ld-library-path.patch",
-        "@com_github_digital_asset_daml//bazel_tools:haskell-win-so-name.patch",
-      ],
-      patch_args = ["-p1"],
-      sha256 = rules_haskell_sha256,
-    )
+    if "io_tweag_rules_haskell" not in native.existing_rules():
+        http_archive(
+            name = "io_tweag_rules_haskell",
+            strip_prefix = "rules_haskell-%s" % rules_haskell_version,
+            urls = ["https://github.com/tweag/rules_haskell/archive/%s.tar.gz" % rules_haskell_version],
+            patches = [
+                "@com_github_digital_asset_daml//bazel_tools:haskell-static-linking.patch",
+                "@com_github_digital_asset_daml//bazel_tools:haskell-win-sys-includes.patch",
+                "@com_github_digital_asset_daml//bazel_tools:haskell-ld-library-path.patch",
+                "@com_github_digital_asset_daml//bazel_tools:haskell-win-so-name.patch",
+            ],
+            patch_args = ["-p1"],
+            sha256 = rules_haskell_sha256,
+        )
 
-  if "io_tweag_rules_nixpkgs" not in native.existing_rules():
-    http_archive(
-        name = "io_tweag_rules_nixpkgs",
-        strip_prefix = "rules_nixpkgs-%s" % rules_nixpkgs_version,
-        urls = ["https://github.com/tweag/rules_nixpkgs/archive/%s.tar.gz" % rules_nixpkgs_version],
-        sha256 = "a1e113bbd69c97e49cbedce9af0f256756cc5ab1b77aafaab476f1d9d47e9d81",
-    )
+    if "io_tweag_rules_nixpkgs" not in native.existing_rules():
+        http_archive(
+            name = "io_tweag_rules_nixpkgs",
+            strip_prefix = "rules_nixpkgs-%s" % rules_nixpkgs_version,
+            urls = ["https://github.com/tweag/rules_nixpkgs/archive/%s.tar.gz" % rules_nixpkgs_version],
+            sha256 = "a1e113bbd69c97e49cbedce9af0f256756cc5ab1b77aafaab476f1d9d47e9d81",
+        )
 
-  if "ai_formation_hazel" not in native.existing_rules():
-    http_archive(
-      name = "ai_formation_hazel",
-      strip_prefix = "rules_haskell-{}/hazel".format(rules_haskell_version),
-      urls = ["https://github.com/tweag/rules_haskell/archive/%s.tar.gz" % rules_haskell_version],
-      sha256 = rules_haskell_sha256,
-      patches = [
-        "@com_github_digital_asset_daml//bazel_tools:hackage_mirror.patch",
-      ],
-      patch_args = ["-p2"],
-    )
+    if "ai_formation_hazel" not in native.existing_rules():
+        http_archive(
+            name = "ai_formation_hazel",
+            strip_prefix = "rules_haskell-{}/hazel".format(rules_haskell_version),
+            urls = ["https://github.com/tweag/rules_haskell/archive/%s.tar.gz" % rules_haskell_version],
+            sha256 = rules_haskell_sha256,
+            patches = [
+                "@com_github_digital_asset_daml//bazel_tools:hackage_mirror.patch",
+            ],
+            patch_args = ["-p2"],
+        )
 
-  if "com_github_madler_zlib" not in native.existing_rules():
-    http_archive(
-      name = "com_github_madler_zlib",
-      build_file = "@com_github_digital_asset_daml//3rdparty/c:zlib.BUILD",
-      strip_prefix = "zlib-cacf7f1d4e3d44d871b605da3b647f07d718623f",
-      urls = ["https://github.com/madler/zlib/archive/cacf7f1d4e3d44d871b605da3b647f07d718623f.tar.gz"],
-      sha256 = "6d4d6640ca3121620995ee255945161821218752b551a1a180f4215f7d124d45",
-    )
+    if "com_github_madler_zlib" not in native.existing_rules():
+        http_archive(
+            name = "com_github_madler_zlib",
+            build_file = "@com_github_digital_asset_daml//3rdparty/c:zlib.BUILD",
+            strip_prefix = "zlib-cacf7f1d4e3d44d871b605da3b647f07d718623f",
+            urls = ["https://github.com/madler/zlib/archive/cacf7f1d4e3d44d871b605da3b647f07d718623f.tar.gz"],
+            sha256 = "6d4d6640ca3121620995ee255945161821218752b551a1a180f4215f7d124d45",
+        )
 
-  if "io_bazel_rules_go" not in native.existing_rules():
-    http_archive(
-        name = "io_bazel_rules_go",
-        urls = ["https://github.com/bazelbuild/rules_go/releases/download/0.17.0/rules_go-0.17.0.tar.gz"],
-        sha256 = "492c3ac68ed9dcf527a07e6a1b2dcbf199c6bf8b35517951467ac32e421c06c1",
-    )
+    if "io_bazel_rules_go" not in native.existing_rules():
+        http_archive(
+            name = "io_bazel_rules_go",
+            urls = ["https://github.com/bazelbuild/rules_go/releases/download/0.17.0/rules_go-0.17.0.tar.gz"],
+            sha256 = "492c3ac68ed9dcf527a07e6a1b2dcbf199c6bf8b35517951467ac32e421c06c1",
+        )
 
-  if "io_bazel_rules_scala" not in native.existing_rules():
-    http_archive(
-      name = 'io_bazel_rules_scala',
-      # TODO: switch back to bazelbuild/rules_scala repo after merge of these PRs:
-      # https://github.com/bazelbuild/rules_scala/pull/717
-      # https://github.com/bazelbuild/rules_scala/pull/718
-      #url = 'https://github.com/bazelbuild/rules_scala/archive/%s.zip' % rules_scala_version,
-      url = 'https://github.com/majcherm-da/rules_scala/archive/%s.zip' % rules_scala_version,
-      type = 'zip',
-      strip_prefix = 'rules_scala-%s' % rules_scala_version,
-      sha256 = "9774acd82267cdf486af38b325b410abf34965dc173e7188406852dd28ed6660",
-    )
+    if "io_bazel_rules_scala" not in native.existing_rules():
+        http_archive(
+            name = "io_bazel_rules_scala",
+            # TODO: switch back to bazelbuild/rules_scala repo after merge of these PRs:
+            # https://github.com/bazelbuild/rules_scala/pull/717
+            # https://github.com/bazelbuild/rules_scala/pull/718
+            #url = 'https://github.com/bazelbuild/rules_scala/archive/%s.zip' % rules_scala_version,
+            url = "https://github.com/majcherm-da/rules_scala/archive/%s.zip" % rules_scala_version,
+            type = "zip",
+            strip_prefix = "rules_scala-%s" % rules_scala_version,
+            sha256 = "9774acd82267cdf486af38b325b410abf34965dc173e7188406852dd28ed6660",
+        )
 
-  if "com_google_protobuf" not in native.existing_rules():
-    http_archive(
-        name = "com_google_protobuf",
-        sha256 = "9510dd2afc29e7245e9e884336f848c8a6600a14ae726adb6befdb4f786f0be2",
-        strip_prefix = "protobuf-3.6.1.3",
-        urls = ["https://github.com/google/protobuf/archive/v3.6.1.3.zip"],
-    )
+    if "com_google_protobuf" not in native.existing_rules():
+        http_archive(
+            name = "com_google_protobuf",
+            sha256 = "9510dd2afc29e7245e9e884336f848c8a6600a14ae726adb6befdb4f786f0be2",
+            strip_prefix = "protobuf-3.6.1.3",
+            urls = ["https://github.com/google/protobuf/archive/v3.6.1.3.zip"],
+        )
 
-  if "com_google_protobuf_javalite" not in native.existing_rules():
-    http_archive(
+    if "com_google_protobuf_javalite" not in native.existing_rules():
+        http_archive(
             name = "com_google_protobuf_javalite",
             sha256 = "79d102c61e2a479a0b7e5fc167bcfaa4832a0c6aad4a75fa7da0480564931bcc",
             strip_prefix = "protobuf-384989534b2246d413dbcd750744faab2607b516",
             urls = ["https://github.com/google/protobuf/archive/384989534b2246d413dbcd750744faab2607b516.zip"],
-    )
+        )
 
-  if "io_bazel_skydoc" not in native.existing_rules():
-    http_archive(
-        name = "io_bazel_skydoc",
-        sha256 = "19eb6c162075707df5703c274d3348127625873dbfa5ff83b1ef4b8f5dbaa449",
-        strip_prefix = "skydoc-0.2.0",
-        urls = ["https://github.com/bazelbuild/skydoc/archive/0.2.0.tar.gz"],
-    )
+    if "io_bazel_skydoc" not in native.existing_rules():
+        http_archive(
+            name = "io_bazel_skydoc",
+            sha256 = "19eb6c162075707df5703c274d3348127625873dbfa5ff83b1ef4b8f5dbaa449",
+            strip_prefix = "skydoc-0.2.0",
+            urls = ["https://github.com/bazelbuild/skydoc/archive/0.2.0.tar.gz"],
+        )
 
-  if "bazel_gazelle" not in native.existing_rules():
-    http_archive(
-        name = "bazel_gazelle",
-        urls = ["https://github.com/bazelbuild/bazel-gazelle/releases/download/0.16.0/bazel-gazelle-0.16.0.tar.gz"],
-        sha256 = "7949fc6cc17b5b191103e97481cf8889217263acf52e00b560683413af204fcb",
-    )
+    if "bazel_gazelle" not in native.existing_rules():
+        http_archive(
+            name = "bazel_gazelle",
+            urls = ["https://github.com/bazelbuild/bazel-gazelle/releases/download/0.16.0/bazel-gazelle-0.16.0.tar.gz"],
+            sha256 = "7949fc6cc17b5b191103e97481cf8889217263acf52e00b560683413af204fcb",
+        )
 
-  if "io_bazel_rules_sass" not in native.existing_rules():
-    http_archive(
-        name = "io_bazel_rules_sass",
-        sha256 = "1e135452dc627f52eab39a50f4d5b8d13e8ed66cba2e6da56ac4cbdbd776536c",
-        strip_prefix = "rules_sass-1.15.2",
-        urls = ["https://github.com/bazelbuild/rules_sass/archive/1.15.2.tar.gz"],
-    )
+    if "io_bazel_rules_sass" not in native.existing_rules():
+        http_archive(
+            name = "io_bazel_rules_sass",
+            sha256 = "1e135452dc627f52eab39a50f4d5b8d13e8ed66cba2e6da56ac4cbdbd776536c",
+            strip_prefix = "rules_sass-1.15.2",
+            urls = ["https://github.com/bazelbuild/rules_sass/archive/1.15.2.tar.gz"],
+        )
 
-  # Fetch rules_nodejs so we can install our npm dependencies
-  if "build_bazel_rules_nodejs" not in native.existing_rules():
-    http_archive(
-        name = "build_bazel_rules_nodejs",
-        urls = ["https://github.com/bazelbuild/rules_nodejs/releases/download/0.27.8/rules_nodejs-0.27.8.tar.gz"],
-        sha256 = "88e5e579fb9edfbd19791b8a3c6bfbe16ae3444dba4b428e5efd36856db7cf16",
-        patches = ["@com_github_digital_asset_daml//bazel_tools:rules_nodejs_default_shell_env.patch"],
-        patch_args = ["-p1"],
-    )
+    # Fetch rules_nodejs so we can install our npm dependencies
+    if "build_bazel_rules_nodejs" not in native.existing_rules():
+        http_archive(
+            name = "build_bazel_rules_nodejs",
+            urls = ["https://github.com/bazelbuild/rules_nodejs/releases/download/0.27.8/rules_nodejs-0.27.8.tar.gz"],
+            sha256 = "88e5e579fb9edfbd19791b8a3c6bfbe16ae3444dba4b428e5efd36856db7cf16",
+            patches = ["@com_github_digital_asset_daml//bazel_tools:rules_nodejs_default_shell_env.patch"],
+            patch_args = ["-p1"],
+        )
 
-  if "com_github_grpc_grpc" not in native.existing_rules():
-    http_archive(
-        name = "com_github_grpc_grpc",
-        strip_prefix = "grpc-1.19.0",
-        urls = ["https://github.com/grpc/grpc/archive/v1.19.0.tar.gz"],
-        sha256 = "1d54cd95ed276c42c276e0a3df8ab33ee41968b73af14023c03a19db48f82e73",
-        patches = [
-          "@com_github_digital_asset_daml//bazel_tools:grpc-bazel-mingw.patch",
-        ],
-        patch_args = ["-p1"],
-     )
+    if "com_github_grpc_grpc" not in native.existing_rules():
+        http_archive(
+            name = "com_github_grpc_grpc",
+            strip_prefix = "grpc-1.19.0",
+            urls = ["https://github.com/grpc/grpc/archive/v1.19.0.tar.gz"],
+            sha256 = "1d54cd95ed276c42c276e0a3df8ab33ee41968b73af14023c03a19db48f82e73",
+            patches = [
+                "@com_github_digital_asset_daml//bazel_tools:grpc-bazel-mingw.patch",
+            ],
+            patch_args = ["-p1"],
+        )
 
-  if "io_grpc_grpc_java" not in native.existing_rules():
-    http_archive(
-        name = "io_grpc_grpc_java",
-        strip_prefix = "grpc-java-1.19.0",
-        urls = ["https://github.com/grpc/grpc-java/archive/v1.19.0.tar.gz"],
-        sha256 = "81d1e12bf0f8bd1560eed7c75f24d8bb8e7368dcf07802586e439c85cf89b005",
-     )
+    if "io_grpc_grpc_java" not in native.existing_rules():
+        http_archive(
+            name = "io_grpc_grpc_java",
+            strip_prefix = "grpc-java-1.19.0",
+            urls = ["https://github.com/grpc/grpc-java/archive/v1.19.0.tar.gz"],
+            sha256 = "81d1e12bf0f8bd1560eed7c75f24d8bb8e7368dcf07802586e439c85cf89b005",
+        )
 
-  if "com_github_johnynek_bazel_jar_jar" not in native.existing_rules():
-    http_archive(
-        name = "com_github_johnynek_bazel_jar_jar",
-        sha256 = "ee227e7f304e9b7f26d033af677f31066f68b1c94ee8f8d04fbecfb371c3caef",
-        strip_prefix = "bazel_jar_jar-16e48f319048e090a2fe7fd39a794312d191fc6f",
-        urls = ["https://github.com/johnynek/bazel_jar_jar/archive/16e48f319048e090a2fe7fd39a794312d191fc6f.zip"], # Latest commit SHA as at 2019/02/13
-    )
+    if "com_github_johnynek_bazel_jar_jar" not in native.existing_rules():
+        http_archive(
+            name = "com_github_johnynek_bazel_jar_jar",
+            sha256 = "ee227e7f304e9b7f26d033af677f31066f68b1c94ee8f8d04fbecfb371c3caef",
+            strip_prefix = "bazel_jar_jar-16e48f319048e090a2fe7fd39a794312d191fc6f",
+            urls = ["https://github.com/johnynek/bazel_jar_jar/archive/16e48f319048e090a2fe7fd39a794312d191fc6f.zip"],  # Latest commit SHA as at 2019/02/13
+        )
 
-  if "com_github_scalapb_scalapb" not in native.existing_rules():
-    http_archive(
-        name = "com_github_scalapb_scalapb",
-        url = "https://github.com/scalapb/ScalaPB/releases/download/v0.8.0/scalapbc-0.8.0.zip",
-        sha256 = "bda0b44b50f0a816342a52c34e6a341b1a792f2a6d26f4f060852f8f10f5d854",
-        strip_prefix = "scalapbc-0.8.0/lib",
-      build_file_content = """
+    if "com_github_scalapb_scalapb" not in native.existing_rules():
+        http_archive(
+            name = "com_github_scalapb_scalapb",
+            url = "https://github.com/scalapb/ScalaPB/releases/download/v0.8.0/scalapbc-0.8.0.zip",
+            sha256 = "bda0b44b50f0a816342a52c34e6a341b1a792f2a6d26f4f060852f8f10f5d854",
+            strip_prefix = "scalapbc-0.8.0/lib",
+            build_file_content = """
 java_import(
     name = "compilerplugin",
     jars = ["com.thesamet.scalapb.compilerplugin-0.8.0.jar"],
@@ -196,20 +196,19 @@ java_import(
             """,
         )
 
-    if "com_github_googleapis_googleapis" not in native.existing_rules():
-      http_archive(
-          name = "com_github_googleapis_googleapis",
-          strip_prefix = "googleapis-6c48ab5aef47dc14e02e2dc718d232a28067129d",
-          urls = ["https://github.com/googleapis/googleapis/archive/6c48ab5aef47dc14e02e2dc718d232a28067129d.tar.gz"],
-          sha256 = "70d7be6ad49b4424313aad118c8622aab1c5fdd5a529d4215d3884ff89264a71",
-       )
-
-  native.bind(
-    name = "guava",
-    actual = "@com_google_guava_guava//jar",
-  )
-  native.bind(
-    name = "gson",
-    actual = "@com_google_code_gson_gson//jar",
-  )
+        if "com_github_googleapis_googleapis" not in native.existing_rules():
+            http_archive(
+                name = "com_github_googleapis_googleapis",
+                strip_prefix = "googleapis-6c48ab5aef47dc14e02e2dc718d232a28067129d",
+                urls = ["https://github.com/googleapis/googleapis/archive/6c48ab5aef47dc14e02e2dc718d232a28067129d.tar.gz"],
+                sha256 = "70d7be6ad49b4424313aad118c8622aab1c5fdd5a529d4215d3884ff89264a71",
+            )
 
+    native.bind(
+        name = "guava",
+        actual = "@com_google_guava_guava//jar",
+    )
+    native.bind(
+        name = "gson",
+        actual = "@com_google_code_gson_gson//jar",
+    )
diff --git a/dev-env/bin/dade-copyright-headers b/dev-env/bin/dade-copyright-headers
index 11e7223af7..1e22f59454 100755
--- a/dev-env/bin/dade-copyright-headers
+++ b/dev-env/bin/dade-copyright-headers
@@ -31,38 +31,38 @@ import sys
 # skip: Optional prefix for lines to skip when adding header initially.
 
 filetypes = \
-  { 'daml'  : { 'start' : '-' * 80 , 'line' : '--'   , 'end' : ''         , 'empty_line' : '' } ,
-    'hs'    : { 'start' : '-' * 80 , 'line' : '--'   , 'end' : ''         , 'empty_line' : '', 'skip' : '#!'  } ,
-    'lhs'   : { 'start' : '-' * 80 , 'line' : '--'   , 'end' : ''         , 'empty_line' : '' } ,
-    'chs'   : { 'start' : '-' * 80 , 'line' : '--'   , 'end' : ''         , 'empty_line' : '' } ,
-    'js'    : { 'start' : ''     , 'line' : '//'   , 'end' : ''         , 'empty_line' : '' } ,
-    'ts'    : { 'start' : ''     , 'line' : '//'   , 'end' : ''         , 'empty_line' : '' } ,
-    'tsx'   : { 'start' : ''     , 'line' : '//'   , 'end' : ''         , 'empty_line' : '' } ,
-    'java'  : { 'start' : ''     , 'line' : '//'   , 'end' : ''         , 'empty_line' : '' } ,
-    'scala' : { 'start' : ''     , 'line' : '//'   , 'end' : ''         , 'empty_line' : '' } ,
-    'rst'   : { 'start' : ''     , 'line' : '..'   , 'end' : ''         , 'empty_line' : '' } ,
-    'tex'   : { 'start' : '%' * 80 , 'line' : '%'    , 'end' : ''         , 'empty_line' : '' } ,
-    'py'    : { 'start' : '#' * 80 , 'line' : '#'    , 'end' : ''         , 'empty_line' : '', 'skip' : '#!' } ,
-    'proto' : { 'start' : '/*'     , 'line' : '//'   , 'end' : ''         , 'empty_line' : '' } ,
-    'c'     : { 'start' : '/*'     , 'line' : '//'   , 'end' : ''         , 'empty_line' : '' } ,
-    'cpp'   : { 'start' : '/*'     , 'line' : '//'   , 'end' : ''         , 'empty_line' : '' } ,
-    'cc'    : { 'start' : '/*'     , 'line' : '//'   , 'end' : ''         , 'empty_line' : '' } ,
-    'h'     : { 'start' : '/*'     , 'line' : '//'   , 'end' : ''         , 'empty_line' : '' } ,
-    'hpp'   : { 'start' : '/*'     , 'line' : '//'   , 'end' : ''         , 'empty_line' : '' } ,
-    'hh'    : { 'start' : '/*'     , 'line' : '//'   , 'end' : ''         , 'empty_line' : '' } ,
-    'groovy' : { 'start' : '/*'     , 'line' : '//'   , 'end' : ''         , 'empty_line' : '' } ,
-    'sql'   : { 'start' : '/*'     , 'line' : '--'   , 'end' : ''         , 'empty_line' : '' } ,
-    'css'   : { 'start' : '/*'     , 'line' : ''   , 'end' : ' */' }    ,
-    'scss'   : { 'start' : '/*'     , 'line' : ''   , 'end' : ' */' }    ,
-    'sh'    : { 'start' : '#' * 80 , 'line' : '#'    , 'end' : '', 'empty_line' : '', 'skip' : '#!' } ,
-    'bats'    : { 'start' : '#' * 80 , 'line' : '#'    , 'end' : '', 'empty_line' : '', 'skip' : '#!' } ,
-    'html'  : { 'start' : '<!--'   , 'line' : '' , 'end' : '-->'   , 'skip' : '<!' } ,
-    'bat'   : { 'start' : '::'     , 'line' : '::'   , 'end' : ''         , 'empty_line' : '' } ,
-    'cmd'   : { 'start' : '::'     , 'line' : '::'   , 'end' : ''         , 'empty_line' : '' } ,
-    'bazel'    : { 'start' : '#' * 80 , 'line' : '#'    , 'end' : '', 'empty_line' : '', 'skip': '#!' } ,
-    'bzl'    : { 'start' : '#' * 80 , 'line' : '#'    , 'end' : '', 'empty_line' : '', 'skip': '#!' } ,
-    'rb'   : { 'start' : '#' * 80 , 'line' : '#'    , 'end' : ''         , 'empty_line' : '' } ,
-    'tf'   : { 'start' : '#' * 80 , 'line' : '#'    , 'end' : ''         , 'empty_line' : '' } ,
+  { 'daml'   : { 'start' : '-' * 80 , 'line' : '--'   , 'end' : ''    , 'empty_line' : '' } ,
+    'hs'     : { 'start' : '-' * 80 , 'line' : '--'   , 'end' : ''    , 'empty_line' : '', 'skip' : '#!'  } ,
+    'lhs'    : { 'start' : '-' * 80 , 'line' : '--'   , 'end' : ''    , 'empty_line' : '' } ,
+    'chs'    : { 'start' : '-' * 80 , 'line' : '--'   , 'end' : ''    , 'empty_line' : '' } ,
+    'js'     : { 'start' : ''       , 'line' : '//'   , 'end' : ''    , 'empty_line' : '' } ,
+    'ts'     : { 'start' : ''       , 'line' : '//'   , 'end' : ''    , 'empty_line' : '' } ,
+    'tsx'    : { 'start' : ''       , 'line' : '//'   , 'end' : ''    , 'empty_line' : '' } ,
+    'java'   : { 'start' : ''       , 'line' : '//'   , 'end' : ''    , 'empty_line' : '' } ,
+    'scala'  : { 'start' : ''       , 'line' : '//'   , 'end' : ''    , 'empty_line' : '' } ,
+    'rst'    : { 'start' : ''       , 'line' : '..'   , 'end' : ''    , 'empty_line' : '' } ,
+    'tex'    : { 'start' : '%' * 80 , 'line' : '%'    , 'end' : ''    , 'empty_line' : '' } ,
+    'py'     : { 'start' : '#' * 80 , 'line' : '#'    , 'end' : ''    , 'empty_line' : '', 'skip' : '#!' } ,
+    'proto'  : { 'start' : '/*'     , 'line' : '//'   , 'end' : ''    , 'empty_line' : '' } ,
+    'c'      : { 'start' : '/*'     , 'line' : '//'   , 'end' : ''    , 'empty_line' : '' } ,
+    'cpp'    : { 'start' : '/*'     , 'line' : '//'   , 'end' : ''    , 'empty_line' : '' } ,
+    'cc'     : { 'start' : '/*'     , 'line' : '//'   , 'end' : ''    , 'empty_line' : '' } ,
+    'h'      : { 'start' : '/*'     , 'line' : '//'   , 'end' : ''    , 'empty_line' : '' } ,
+    'hpp'    : { 'start' : '/*'     , 'line' : '//'   , 'end' : ''    , 'empty_line' : '' } ,
+    'hh'     : { 'start' : '/*'     , 'line' : '//'   , 'end' : ''    , 'empty_line' : '' } ,
+    'groovy' : { 'start' : '/*'     , 'line' : '//'   , 'end' : ''    , 'empty_line' : '' } ,
+    'sql'    : { 'start' : '/*'     , 'line' : '--'   , 'end' : ''    , 'empty_line' : '' } ,
+    'sh'     : { 'start' : '#' * 80 , 'line' : '#'    , 'end' : ''    , 'empty_line' : '', 'skip' : '#!' } ,
+    'bats'   : { 'start' : '#' * 80 , 'line' : '#'    , 'end' : ''    , 'empty_line' : '', 'skip' : '#!' } ,
+    'html'   : { 'start' : '<!--'   , 'line' : ''     , 'end' : '-->' , 'skip' : '<!' } ,
+    'bat'    : { 'start' : '::'     , 'line' : '::'   , 'end' : ''    , 'empty_line' : '' } ,
+    'cmd'    : { 'start' : '::'     , 'line' : '::'   , 'end' : ''    , 'empty_line' : '' } ,
+    'bazel'  : { 'start' : '#' * 80 , 'line' : '#'    , 'end' : ''    , 'empty_line' : '', 'skip': '#!' } ,
+    'bzl'    : { 'start' : '#' * 80 , 'line' : '#'    , 'end' : ''    , 'empty_line' : '', 'skip': '#!' } ,
+    'rb'     : { 'start' : '#' * 80 , 'line' : '#'    , 'end' : ''    , 'empty_line' : '' } ,
+    'tf'     : { 'start' : '#' * 80 , 'line' : '#'    , 'end' : ''    , 'empty_line' : '' } ,
+    'css'    : { 'start' : '/*'     , 'line' : ''     , 'end' : ' */' } ,
+    'scss'   : { 'start' : '/*'     , 'line' : ''     , 'end' : ' */' } ,
   }
 
 #########################
@@ -127,6 +127,9 @@ def process_file(filename, check_only):
   # Read all lines from the file
   with open(filename, 'r', encoding="UTF-8") as fp:
     lines = fp.readlines()
+  # Pretend that the file has extra empty line at the end to handle files,
+  # which consist only of the copyright notice and nothing else.
+  lines.append('\n')
 
   # Process the file:
   # If we find an existing copyright header with the same starting line
diff --git a/docs/BUILD.bazel b/docs/BUILD.bazel
index ec5f0588e3..6d7cfcbdad 100644
--- a/docs/BUILD.bazel
+++ b/docs/BUILD.bazel
@@ -6,18 +6,37 @@ load("@os_info//:os_info.bzl", "is_linux")
 load("//rules_daml:daml.bzl", "daml_test")
 
 nodejs_binary(
-    name="grunt",
-    data=['@npm//matchdep', '@npm//grunt-cli'],
-    entry_point='grunt-cli/bin/grunt'
+    name = "grunt",
+    data = [
+        "@npm//grunt-cli",
+        "@npm//matchdep",
+    ],
+    entry_point = "grunt-cli/bin/grunt",
 )
 
 genrule(
     name = "theme",
-    srcs = glob(["theme/**"], exclude=["theme/bower_components/**", "theme/node_modules/**", "theme/da_theme/**"]) +
-        ['@npm//browserify', '@npm//grunt-banner', '@npm//grunt-browserify', '@npm//grunt-contrib-clean'
-        , '@npm//grunt-contrib-connect', '@npm//grunt-contrib-copy', '@npm//grunt-contrib-sass', '@npm//grunt-contrib-uglify'
-        , '@npm//grunt-contrib-watch', '@npm//grunt-exec', '@npm//grunt-open', '@npm//matchdep'],
-    tools = ["@sass_nix//:bin/sass", ':grunt'],
+    srcs = glob(
+        ["theme/**"],
+        exclude = [
+            "theme/bower_components/**",
+            "theme/node_modules/**",
+            "theme/da_theme/**",
+        ],
+    ) + [
+        "@npm//browserify",
+        "@npm//grunt-banner",
+        "@npm//grunt-browserify",
+        "@npm//grunt-contrib-clean",
+        "@npm//grunt-contrib-connect",
+        "@npm//grunt-contrib-copy",
+        "@npm//grunt-contrib-sass",
+        "@npm//grunt-contrib-uglify",
+        "@npm//grunt-contrib-watch",
+        "@npm//grunt-exec",
+        "@npm//grunt-open",
+        "@npm//matchdep",
+    ],
     outs = ["da_theme.tar.gz"],
     cmd = """
         cp -rL docs/theme theme
@@ -48,16 +67,21 @@ genrule(
             --sort=name \
             -czf ../$(location da_theme.tar.gz) \
             da_theme
-    """
+    """,
+    tools = [
+        ":grunt",
+        "@sass_nix//:bin/sass",
+    ],
 )
 
 genrule(
     name = "sources",
-    srcs = glob(["source/**"]) +
-        [ "//daml-foundations/daml-ghc:daml-base-rst-docs"
-        , "//ledger-api/grpc-definitions:docs"
-        , "//:LICENSE"
-        , "//:NOTICES"],
+    srcs = glob(["source/**"]) + [
+        "//daml-foundations/daml-ghc:daml-base-rst-docs",
+        "//ledger-api/grpc-definitions:docs",
+        "//:LICENSE",
+        "//:NOTICES",
+    ],
     outs = ["source.tar.gz"],
     cmd = """
         cp -rL docs/source source
@@ -73,16 +97,17 @@ genrule(
         cp -L $(location //:NOTICES) source/NOTICES
 
         tar -zcf $(location source.tar.gz) source
-    """
+    """,
 )
 
 genrule(
     name = "pdf-docs",
-    srcs = glob(["configs/pdf/**", "configs/static/pygments_daml_lexer.py"]) +
-        [":sources"],
-    tools =
-        ["@texlive_nix//:bin/lualatex", "@sphinx_nix//:bin/sphinx-build", "@imagemagick_nix//:bin/convert"] +
-        (["@glibc_locales//:locale-archive"] if is_linux else []),
+    srcs = glob([
+        "configs/pdf/**",
+        "configs/static/pygments_daml_lexer.py",
+    ]) + [
+        ":sources",
+    ],
     outs = ["DigitalAssetSDK.pdf"],
     cmd = ("""
         export LOCALE_ARCHIVE="$$PWD/$(location @glibc_locales//:locale-archive)"
@@ -113,22 +138,28 @@ genrule(
         ../$(location @texlive_nix//:bin/lualatex) -halt-on-error -interaction=batchmode --shell-escape *.tex
 
         # Move output to target
-        mv DigitalAssetSDK.pdf ../$(location DigitalAssetSDK.pdf)"""
+        mv DigitalAssetSDK.pdf ../$(location DigitalAssetSDK.pdf)""",
+    tools =
+        [
+            "@texlive_nix//:bin/lualatex",
+            "@sphinx_nix//:bin/sphinx-build",
+            "@imagemagick_nix//:bin/convert",
+        ] + (["@glibc_locales//:locale-archive"] if is_linux else []),
 )
 
 genrule(
     name = "docs-no-pdf",
-    srcs = glob(["configs/html/**", "configs/static/pygments_daml_lexer.py"]) +
-        [ ":sources"
-        , ":theme"
-        , "//daml-foundations/daml-ghc:daml-base-rst-docs"
-        , "//daml-foundations/daml-ghc:daml-base-hoogle-docs"
-        , "//language-support/java:javadocs"
-        , "//language-support/js/docs"
-        ],
-    tools =
-        ["@sphinx_nix//:bin/sphinx-build"] +
-        (["@glibc_locales//:locale-archive"] if is_linux else []),
+    srcs = glob([
+        "configs/html/**",
+        "configs/static/pygments_daml_lexer.py",
+    ]) + [
+        ":sources",
+        ":theme",
+        "//daml-foundations/daml-ghc:daml-base-rst-docs",
+        "//daml-foundations/daml-ghc:daml-base-hoogle-docs",
+        "//language-support/java:javadocs",
+        "//language-support/js/docs",
+    ],
     outs = ["html-only.tar.gz"],
     cmd = ("""
         export LOCALE_ARCHIVE="$$PWD/$(location @glibc_locales//:locale-archive)"
@@ -168,12 +199,18 @@ genrule(
         cp -rL ../$(location //daml-foundations/daml-ghc:daml-base-hoogle-docs) html/hoogle_db/base.txt
 
         tar -zcf ../$(location html-only.tar.gz) html
-        """
+        """,
+    tools =
+        ["@sphinx_nix//:bin/sphinx-build"] +
+        (["@glibc_locales//:locale-archive"] if is_linux else []),
 )
 
 genrule(
     name = "redirects",
-    srcs = ["redirects.map", "redirect_template.html"],
+    srcs = [
+        "redirects.map",
+        "redirect_template.html",
+    ],
     outs = ["redirects.tar.gz"],
     cmd = """
         mkdir redirects
@@ -188,12 +225,17 @@ genrule(
             fi
         done <docs/redirects.map
         tar -zcf $(location redirects.tar.gz) redirects
-    """
+    """,
 )
 
 genrule(
     name = "docs",
-    srcs = [":docs-no-pdf", ":pdf-docs", ":redirects", "error.html"],
+    srcs = [
+        ":docs-no-pdf",
+        ":pdf-docs",
+        ":redirects",
+        "error.html",
+    ],
     outs = ["html.tar.gz"],
     cmd = """
         tar -zxf $(location :redirects)
@@ -216,10 +258,10 @@ genrule(
         cp -L $(location :pdf-docs) html/_downloads
         tar -zcf $(location html.tar.gz) html
     """.format(
-            """<?xml version='1.0' encoding='UTF-8'?><urlset xmlns='http://www.sitemaps.org/schemas/sitemap/0.9' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd'>""",
-            """<url><loc>%LOC%</loc><lastmod>%DATE%</lastmod><changefreq>daily</changefreq><priority>0.8</priority></url>""",
-            """</urlset>"""
-        )
+        """<?xml version='1.0' encoding='UTF-8'?><urlset xmlns='http://www.sitemaps.org/schemas/sitemap/0.9' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd'>""",
+        """<url><loc>%LOC%</loc><lastmod>%DATE%</lastmod><changefreq>daily</changefreq><priority>0.8</priority></url>""",
+        """</urlset>""",
+    ),
 )
 
 genrule(
@@ -240,16 +282,16 @@ load("//rules_daml:daml.bzl", "daml_compile")
 load("//language-support/java/codegen:codegen.bzl", "dar_to_java")
 
 daml_compile(
-        name = "quickstart-model",
-        main_src = "source/getting-started/quickstart/template-root/daml/Main.daml",
-        srcs = glob(["source/getting-started/quickstart/template-root/**/*.daml"]),
-        target = "1.1",
+    name = "quickstart-model",
+    srcs = glob(["source/getting-started/quickstart/template-root/**/*.daml"]),
+    main_src = "source/getting-started/quickstart/template-root/daml/Main.daml",
+    target = "1.1",
 )
 
 dar_to_java(
     name = "quickstart-model",
     src = "quickstart-model.dar",
-    package_prefix = "com.digitalasset.quickstart.model"
+    package_prefix = "com.digitalasset.quickstart.model",
 )
 
 java_binary(
@@ -258,56 +300,54 @@ java_binary(
     main_class = "com.digitalasset.quickstart.iou.IouMain",
     deps = [
         "//3rdparty/jvm/ch/qos/logback:logback_classic",
+        "//3rdparty/jvm/com/google/code/gson",
+        "//3rdparty/jvm/com/google/guava",
         "//3rdparty/jvm/com/google/protobuf:protobuf_java",
         "//3rdparty/jvm/com/sparkjava:spark_core",
-        "//3rdparty/jvm/com/google/guava:guava",
-        "//3rdparty/jvm/com/google/code/gson:gson",
         "//3rdparty/jvm/io/reactivex/rxjava2:rxjava",
         "//daml-lf/archive:daml_lf_java_proto",
-        "//language-support/java/bindings-rxjava:bindings-rxjava",
         "//language-support/java/bindings:bindings-java",
-    ]
+        "//language-support/java/bindings-rxjava",
+    ],
 )
 
-
-
 daml_test(
     name = "ledger-api-introduction-daml-test",
-    srcs = glob(["source/app-dev/ledger-api-introduction/code-snippets/**/*.daml"])
+    srcs = glob(["source/app-dev/ledger-api-introduction/code-snippets/**/*.daml"]),
 )
 
 daml_test(
     name = "patterns-daml-test",
-    srcs = glob(["source/daml/patterns/daml/**/*.daml"])
+    srcs = glob(["source/daml/patterns/daml/**/*.daml"]),
 )
 
 daml_test(
     name = "daml-studio-daml-test",
-    srcs = glob(["source/daml/daml-studio/daml/**/*.daml"])
+    srcs = glob(["source/daml/daml-studio/daml/**/*.daml"]),
 )
 
 daml_test(
     name = "daml-ref-daml-test",
-    srcs = glob(["source/daml/code-snippets/**/*.daml"]),
     timeout = "long",
+    srcs = glob(["source/daml/code-snippets/**/*.daml"]),
 )
 
 daml_test(
     name = "introduction-daml-test",
-    srcs = glob(["source/getting-started/introduction/code/**/*.daml"])
+    srcs = glob(["source/getting-started/introduction/code/**/*.daml"]),
 )
 
 daml_test(
     name = "quickstart-daml-test",
-    srcs = glob(["source/getting-started/quickstart/template-root/daml/**/*.daml"])
+    srcs = glob(["source/getting-started/quickstart/template-root/daml/**/*.daml"]),
 )
 
 daml_test(
     name = "ledger-model-daml-test",
-    srcs = glob(["source/concepts/ledger-model/daml/**/*.daml"])
+    srcs = glob(["source/concepts/ledger-model/daml/**/*.daml"]),
 )
 
 daml_test(
     name = "java-bindings-docs-daml-test",
-    srcs = glob(["source/app-dev/bindings-java/daml/**/*.daml"])
+    srcs = glob(["source/app-dev/bindings-java/daml/**/*.daml"]),
 )
diff --git a/extractor/BUILD.bazel b/extractor/BUILD.bazel
index 11ac3b54f1..0f852afd05 100644
--- a/extractor/BUILD.bazel
+++ b/extractor/BUILD.bazel
@@ -2,112 +2,111 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_test_suite',
-  'da_scala_library',
-  'da_scala_binary',
+    "//bazel_tools:scala.bzl",
+    "da_scala_binary",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
-
 load(
-  "//rules_daml:daml.bzl",
-  "daml_compile"
+    "//rules_daml:daml.bzl",
+    "daml_compile",
 )
 
 compileDependencies = [
-  # this has to come first other as somehow a different instance of grpc-core.jar
-  '//3rdparty/jvm/io/grpc:grpc_services',
-  '//daml-lf/archive:daml_lf_java_proto',
-  '//daml-lf/archive:daml_lf_archive_scala',
-  '//daml-lf/data',
-  '//daml-lf/interface',
-  '//ledger-api/rs-grpc-bridge',
-  '//ledger-api/rs-grpc-akka',
-  '//language-support/scala/bindings',
-  '//ledger/ledger-api-client',
-  '//3rdparty/jvm/io/netty:netty_tcnative_boringssl_static',
-  '//3rdparty/jvm/com/chuusai:shapeless',
-  '//3rdparty/jvm/org/spire_math:kind_projector',
-  '//3rdparty/jvm/com/github/scopt:scopt',
-  '//3rdparty/jvm/com/lihaoyi:pprint',
-  '//3rdparty/jvm/org/tpolecat:doobie_core',
-  '//3rdparty/jvm/org/tpolecat:doobie_postgres',
-  '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-  '//3rdparty/jvm/org/scalaz:scalaz_core',
-  '//3rdparty/jvm/org/slf4j:slf4j_api',
-  '//3rdparty/jvm/io/circe:circe_core',
-  '//3rdparty/jvm/io/circe:circe_generic',
-  '//3rdparty/jvm/io/circe:circe_parser',
-  '//3rdparty/jvm/io/grpc:grpc_netty',
+    # this has to come first other as somehow a different instance of grpc-core.jar
+    "//3rdparty/jvm/io/grpc:grpc_services",
+    "//daml-lf/archive:daml_lf_java_proto",
+    "//daml-lf/archive:daml_lf_archive_scala",
+    "//daml-lf/data",
+    "//daml-lf/interface",
+    "//ledger-api/rs-grpc-bridge",
+    "//ledger-api/rs-grpc-akka",
+    "//language-support/scala/bindings",
+    "//ledger/ledger-api-client",
+    "//3rdparty/jvm/io/netty:netty_tcnative_boringssl_static",
+    "//3rdparty/jvm/com/chuusai:shapeless",
+    "//3rdparty/jvm/org/spire_math:kind_projector",
+    "//3rdparty/jvm/com/github/scopt:scopt",
+    "//3rdparty/jvm/com/lihaoyi:pprint",
+    "//3rdparty/jvm/org/tpolecat:doobie_core",
+    "//3rdparty/jvm/org/tpolecat:doobie_postgres",
+    "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+    "//3rdparty/jvm/org/scalaz:scalaz_core",
+    "//3rdparty/jvm/org/slf4j:slf4j_api",
+    "//3rdparty/jvm/io/circe:circe_core",
+    "//3rdparty/jvm/io/circe:circe_generic",
+    "//3rdparty/jvm/io/circe:circe_parser",
+    "//3rdparty/jvm/io/grpc:grpc_netty",
 ]
 
 daml_compile(
-  name = "RecordsAndVariants",
-  main_src = "src/test/resources/damls/RecordsAndVariants.daml",
-  target = "1.3",
-  damlc = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated"
+    name = "RecordsAndVariants",
+    damlc = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated",
+    main_src = "src/test/resources/damls/RecordsAndVariants.daml",
+    target = "1.3",
 )
 
 daml_compile(
-  name = "PrimitiveTypes",
-  main_src = "src/test/resources/damls/PrimitiveTypes.daml",
-  target = "1.3",
-  damlc = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated"
+    name = "PrimitiveTypes",
+    damlc = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated",
+    main_src = "src/test/resources/damls/PrimitiveTypes.daml",
+    target = "1.3",
 )
 
 daml_compile(
-  name = "TransactionExample",
-  main_src = "src/test/resources/damls/TransactionExample.daml",
-  target = "1.3",
-  damlc = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated"
+    name = "TransactionExample",
+    damlc = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated",
+    main_src = "src/test/resources/damls/TransactionExample.daml",
+    target = "1.3",
 )
 
 testDependencies = [
-  ':extractor',
-  '//ledger/sandbox:sandbox',
-  '//ledger-api/testing-utils',
-  '//ledger/sandbox:sandbox-scala-tests-lib',
-  '//3rdparty/jvm/org/scalatest:scalatest',
+    ":extractor",
+    "//ledger/sandbox:sandbox",
+    "//ledger-api/testing-utils",
+    "//ledger/sandbox:sandbox-scala-tests-lib",
+    "//3rdparty/jvm/org/scalatest:scalatest",
 ] + compileDependencies
 
 da_scala_library(
-  name = 'extractor',
-  srcs = glob(['src/main/scala/**/*.scala']),
-  resources = glob(['src/main/resources/**/*']),
-  deps = compileDependencies,
-  runtime_deps = [
-    '//3rdparty/jvm/ch/qos/logback:logback_core',
-    '//3rdparty/jvm/ch/qos/logback:logback_classic'
-  ],
+    name = "extractor",
+    srcs = glob(["src/main/scala/**/*.scala"]),
+    resources = glob(["src/main/resources/**/*"]),
+    runtime_deps = [
+        "//3rdparty/jvm/ch/qos/logback:logback_classic",
+        "//3rdparty/jvm/ch/qos/logback:logback_core",
+    ],
+    deps = compileDependencies,
 )
 
 da_scala_binary(
-  name = "extractor-binary",
-  main_class = 'com.digitalasset.extractor.Main',
-  deps = [
-    ":extractor",
-  ],
-  visibility = ["//visibility:public"],
-  tags = ["maven_coordinates=com.digitalasset:extractor:__VERSION__"],
+    name = "extractor-binary",
+    main_class = "com.digitalasset.extractor.Main",
+    tags = ["maven_coordinates=com.digitalasset:extractor:__VERSION__"],
+    visibility = ["//visibility:public"],
+    deps = [
+        ":extractor",
+    ],
 )
 
 da_scala_library(
-  name = "extractor-scala-tests-lib",
-  srcs = glob(['src/test/lib/**/*.scala']),
-  deps = testDependencies
+    name = "extractor-scala-tests-lib",
+    srcs = glob(["src/test/lib/**/*.scala"]),
+    deps = testDependencies,
 )
 
 da_scala_test_suite(
     name = "extractor-scala-tests",
-    srcs = glob(['src/test/suite/**/*.scala']),
-    resources = glob(['src/test/resources/**/*']),
+    size = "small",
+    srcs = glob(["src/test/suite/**/*.scala"]),
     data = [
-        '//extractor:RecordsAndVariants.dalf',
-        '//extractor:PrimitiveTypes.dalf',
-        '//extractor:TransactionExample.dalf',
-        '//daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf'
+        "//daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf",
+        "//extractor:PrimitiveTypes.dalf",
+        "//extractor:RecordsAndVariants.dalf",
+        "//extractor:TransactionExample.dalf",
     ],
+    resources = glob(["src/test/resources/**/*"]),
     deps = [
-        ':extractor-scala-tests-lib'
+        ":extractor-scala-tests-lib",
     ] + testDependencies,
-    size = "small"
 )
diff --git a/fmt.sh b/fmt.sh
index 6f322af61a..3da33eaa89 100755
--- a/fmt.sh
+++ b/fmt.sh
@@ -15,6 +15,7 @@ eval "$(dev-env/bin/dade-assist)"
 is_test=
 scalafmt_args=()
 dade_copyright_arg=update
+buildifier_target=//:buildifier-fix
 
 ## Functions ##
 
@@ -54,6 +55,7 @@ USAGE
       is_test=1
       scalafmt_args+=(--test)
       dade_copyright_arg=check
+      buildifier_target=//:buildifier
       ;;
     *)
       echo "fmt.sh: unknown argument $1" >&2
@@ -81,3 +83,5 @@ trap - EXIT
 # check for scala code style
 run ./scalafmt.sh "${scalafmt_args[@]}"
 
+# check for Bazel build files code formatting
+run bazel run "$buildifier_target"
diff --git a/language-support/codegen-main/BUILD.bazel b/language-support/codegen-main/BUILD.bazel
index eb8dadda19..c58f815de2 100644
--- a/language-support/codegen-main/BUILD.bazel
+++ b/language-support/codegen-main/BUILD.bazel
@@ -3,11 +3,11 @@
 
 load(
     "//bazel_tools:scala.bzl",
-    "da_scala_binary"
+    "da_scala_binary",
 )
 load(
     "@com_github_johnynek_bazel_jar_jar//:jar_jar.bzl",
-    "jar_jar"
+    "jar_jar",
 )
 
 da_scala_binary(
@@ -16,14 +16,14 @@ da_scala_binary(
     main_class = "com.digitalasset.codegen.CodegenMain",
     visibility = ["//visibility:public"],
     deps = [
+        "//3rdparty/jvm/com/typesafe/scala_logging",
         "//language-support/java/codegen:lib",
         "//language-support/scala/codegen:codegen-main",
-        "//3rdparty/jvm/com/typesafe/scala_logging",
     ],
 )
 
 jar_jar(
     name = "codegen-main",
     input_jar = ":codegen-main-bin_deploy.jar",
-    rules = "shade_rule"
-)
\ No newline at end of file
+    rules = "shade_rule",
+)
diff --git a/language-support/java/BUILD.bazel b/language-support/java/BUILD.bazel
index 1c5b28ee21..57f1f662b9 100644
--- a/language-support/java/BUILD.bazel
+++ b/language-support/java/BUILD.bazel
@@ -6,12 +6,12 @@ load("@os_info//:os_info.bzl", "is_windows")
 genrule(
     name = "javadocs",
     srcs = [
-        '//language-support/java/bindings-rxjava:sources',
+        "//language-support/java/bindings-rxjava:sources",
         "//language-support/java/bindings:sources",
-        '//language-support/java/bindings-rxjava:bindings-rxjava',
+        "//language-support/java/bindings-rxjava",
         "//language-support/java/bindings:bindings-java",
-        '//external:jar/org/slf4j/slf4j_api',
-        '//ledger-api/rs-grpc-bridge:rs-grpc-bridge',
+        "//external:jar/org/slf4j/slf4j_api",
+        "//ledger-api/rs-grpc-bridge",
         "//external:jar/io/reactivex/rxjava2/rxjava",
         "//external:jar/com/google/protobuf/protobuf_java",
         "//external:jar/org/pcollections/pcollections",
@@ -22,7 +22,6 @@ genrule(
         "//external:jar/io/netty/netty_handler",
         "//external:jar/com/google/code/findbugs/jsr305",
     ],
-    tools = ["@javadoc_dev_env//:javadoc"],
     outs = ["javadocs.tar.gz"],
     cmd = """
         CP=$(location //external:jar/org/slf4j/slf4j_api)
@@ -44,7 +43,8 @@ genrule(
     """.format(
         delim = "\;" if is_windows else ":",
     ),
+    tools = ["@javadoc_dev_env//:javadoc"],
     visibility = [
-        '//visibility:public',
-    ]
-)
\ No newline at end of file
+        "//visibility:public",
+    ],
+)
diff --git a/language-support/java/bindings-rxjava/BUILD.bazel b/language-support/java/bindings-rxjava/BUILD.bazel
index f131b9bc97..e630485815 100644
--- a/language-support/java/bindings-rxjava/BUILD.bazel
+++ b/language-support/java/bindings-rxjava/BUILD.bazel
@@ -2,37 +2,33 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//bazel_tools:scala.bzl",
-  "da_scala_test_suite",
-  "da_scala_library"
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
-
 load("//bazel_tools:pom_file.bzl", "pom_file")
 
 java_library(
-    name = 'bindings-rxjava',
-
-    srcs = glob(['src/main/java/**/*.java']),
-
+    name = "bindings-rxjava",
+    srcs = glob(["src/main/java/**/*.java"]),
+    tags = ["maven_coordinates=com.daml.ledger:bindings-rxjava:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
     deps = [
-        '//3rdparty/jvm/org/slf4j:slf4j_api',
-        "//3rdparty/jvm/io/reactivex/rxjava2:rxjava",
-        "//3rdparty/jvm/org/pcollections:pcollections",
-        "//3rdparty/jvm/org/checkerframework:checker",
-        "//3rdparty/jvm/io/grpc:grpc_netty",
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
         "//3rdparty/jvm/io/grpc:grpc_core",
+        "//3rdparty/jvm/io/grpc:grpc_netty",
         "//3rdparty/jvm/io/grpc:grpc_protobuf",
         "//3rdparty/jvm/io/grpc:grpc_stub",
-        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
         "//3rdparty/jvm/io/netty:netty_handler",
-        '//ledger-api/rs-grpc-bridge:rs-grpc-bridge',
-        "//language-support/java/bindings:bindings-java"
+        "//3rdparty/jvm/io/reactivex/rxjava2:rxjava",
+        "//3rdparty/jvm/org/checkerframework:checker",
+        "//3rdparty/jvm/org/pcollections",
+        "//3rdparty/jvm/org/slf4j:slf4j_api",
+        "//language-support/java/bindings:bindings-java",
+        "//ledger-api/rs-grpc-bridge",
     ],
-
-    visibility = [
-        '//visibility:public',
-    ],
-    tags = ["maven_coordinates=com.daml.ledger:bindings-rxjava:__VERSION__"],
 )
 
 pom_file(
@@ -41,39 +37,48 @@ pom_file(
 )
 
 testDependencies = [
-        '//3rdparty/jvm/io/grpc:grpc_core',
-        '//3rdparty/jvm/io/grpc:grpc_netty',
-        ":bindings-rxjava",
-        '//3rdparty/jvm/org/slf4j:slf4j_api',
-        '//ledger-api/grpc-definitions:ledger-api-scalapb',
-        '//language-support/java/testkit:testkit',
-        '//ledger-api/rs-grpc-bridge:rs-grpc-bridge',
-        "//3rdparty/jvm/org/scalatest:scalatest",
-        "//3rdparty/jvm/io/reactivex/rxjava2:rxjava",
-        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
-        "//3rdparty/jvm/org/scalacheck:scalacheck",
-        '//3rdparty/jvm/org/reactivestreams:reactive_streams',
-        "//3rdparty/jvm/org/pcollections:pcollections",
-        '//3rdparty/jvm/org/scalactic:scalactic',
-        "//language-support/java/bindings:bindings-java",
-    ]
+    "//3rdparty/jvm/io/grpc:grpc_core",
+    "//3rdparty/jvm/io/grpc:grpc_netty",
+    ":bindings-rxjava",
+    "//3rdparty/jvm/org/slf4j:slf4j_api",
+    "//ledger-api/grpc-definitions:ledger-api-scalapb",
+    "//language-support/java/testkit:testkit",
+    "//ledger-api/rs-grpc-bridge:rs-grpc-bridge",
+    "//3rdparty/jvm/org/scalatest:scalatest",
+    "//3rdparty/jvm/io/reactivex/rxjava2:rxjava",
+    "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+    "//3rdparty/jvm/org/scalacheck:scalacheck",
+    "//3rdparty/jvm/org/reactivestreams:reactive_streams",
+    "//3rdparty/jvm/org/pcollections:pcollections",
+    "//3rdparty/jvm/org/scalactic:scalactic",
+    "//language-support/java/bindings:bindings-java",
+]
 
 da_scala_library(
-  name = "bindings-java-tests-lib",
-  srcs = glob(['src/test/**/*.scala'], exclude = ['src/test/**/*Spec.scala', 'src/test/**/*Test.scala']),
-  deps = testDependencies,
+    name = "bindings-java-tests-lib",
+    srcs = glob(
+        ["src/test/**/*.scala"],
+        exclude = [
+            "src/test/**/*Spec.scala",
+            "src/test/**/*Test.scala",
+        ],
+    ),
+    deps = testDependencies,
 )
 
 da_scala_test_suite(
     name = "bindings-java-tests",
-    srcs = glob(['src/test/**/*Spec.scala', 'src/test/**/*Test.scala']),
+    srcs = glob([
+        "src/test/**/*Spec.scala",
+        "src/test/**/*Test.scala",
+    ]),
     deps = [
         ":bindings-java-tests-lib",
-    ] + testDependencies
+    ] + testDependencies,
 )
 
-filegroup (
+filegroup(
     name = "sources",
-    srcs = glob(['src/main/java/**/*.java']),
-    visibility = [ '//visibility:public', ],
+    srcs = glob(["src/main/java/**/*.java"]),
+    visibility = ["//visibility:public"],
 )
diff --git a/language-support/java/bindings/BUILD.bazel b/language-support/java/bindings/BUILD.bazel
index c73616101a..aeb5c8d099 100644
--- a/language-support/java/bindings/BUILD.bazel
+++ b/language-support/java/bindings/BUILD.bazel
@@ -2,9 +2,9 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//bazel_tools:scala.bzl",
-  "da_scala_test_suite",
-  "da_scala_library"
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
 load("//bazel_tools:proto.bzl", "proto_gen")
 load("//bazel_tools:java.bzl", "da_java_library")
@@ -12,78 +12,89 @@ load("//bazel_tools:java.bzl", "da_java_library")
 proto_gen(
     name = "ledger-api-java",
     srcs = ["//ledger-api/grpc-definitions:protos"],
-    deps = ['@com_google_protobuf//:empty_proto',
-            '@com_google_protobuf//:timestamp_proto',
-            '@com_google_protobuf//:duration_proto',
-            '@com_google_protobuf//:wrappers_proto',
-            '@com_google_protobuf//:any_proto',
-            '@com_google_protobuf//:descriptor_proto',
-            '@com_github_googleapis_googleapis//google/rpc:status_proto',
-    ],
     plugin_name = "java",
     visibility = [
-        '//visibility:public',
+        "//visibility:public",
+    ],
+    deps = [
+        "@com_github_googleapis_googleapis//google/rpc:status_proto",
+        "@com_google_protobuf//:any_proto",
+        "@com_google_protobuf//:descriptor_proto",
+        "@com_google_protobuf//:duration_proto",
+        "@com_google_protobuf//:empty_proto",
+        "@com_google_protobuf//:timestamp_proto",
+        "@com_google_protobuf//:wrappers_proto",
     ],
 )
 
 proto_gen(
     name = "ledger-api-java-grpc",
     srcs = ["//ledger-api/grpc-definitions:protos"],
-    deps = ['@com_google_protobuf//:empty_proto',
-            '@com_google_protobuf//:timestamp_proto',
-            '@com_google_protobuf//:duration_proto',
-            '@com_google_protobuf//:wrappers_proto',
-            '@com_google_protobuf//:any_proto',
-            '@com_google_protobuf//:descriptor_proto',
-            '@com_github_googleapis_googleapis//google/rpc:status_proto',
-    ],
-    plugin_name = "java-grpc",
     plugin_exec = "@io_grpc_grpc_java//compiler:grpc_java_plugin",
+    plugin_name = "java-grpc",
     visibility = [
-        '//visibility:public',
+        "//visibility:public",
+    ],
+    deps = [
+        "@com_github_googleapis_googleapis//google/rpc:status_proto",
+        "@com_google_protobuf//:any_proto",
+        "@com_google_protobuf//:descriptor_proto",
+        "@com_google_protobuf//:duration_proto",
+        "@com_google_protobuf//:empty_proto",
+        "@com_google_protobuf//:timestamp_proto",
+        "@com_google_protobuf//:wrappers_proto",
     ],
 )
 
 da_java_library(
-    name = 'bindings-java',
-
-    srcs = glob(['src/main/java/**/*.java']) + [':ledger-api-java', ':ledger-api-java-grpc'],
-
-    deps = [
-        "//3rdparty/jvm/org/checkerframework:checker",
-        "//3rdparty/jvm/io/grpc:grpc_stub",
-        "//3rdparty/jvm/io/grpc:grpc_protobuf",
-    ],
-
-    visibility = [
-        '//visibility:public',
+    name = "bindings-java",
+    srcs = glob(["src/main/java/**/*.java"]) + [
+        ":ledger-api-java",
+        ":ledger-api-java-grpc",
     ],
     tags = ["maven_coordinates=com.daml.ledger:bindings-java:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
+    deps = [
+        "//3rdparty/jvm/io/grpc:grpc_protobuf",
+        "//3rdparty/jvm/io/grpc:grpc_stub",
+        "//3rdparty/jvm/org/checkerframework:checker",
+    ],
 )
 
 testDependencies = [
-        ":bindings-java",
-        "//3rdparty/jvm/org/scalatest:scalatest",
-        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
-        "//3rdparty/jvm/org/scalacheck:scalacheck",
-    ]
+    ":bindings-java",
+    "//3rdparty/jvm/org/scalatest:scalatest",
+    "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+    "//3rdparty/jvm/org/scalacheck:scalacheck",
+]
 
 da_scala_library(
-  name = "bindings-java-tests-lib",
-  srcs = glob(['src/test/**/*.scala'], exclude = ['src/test/**/*Spec.scala', 'src/test/**/*Test.scala']),
-  deps = testDependencies,
+    name = "bindings-java-tests-lib",
+    srcs = glob(
+        ["src/test/**/*.scala"],
+        exclude = [
+            "src/test/**/*Spec.scala",
+            "src/test/**/*Test.scala",
+        ],
+    ),
+    deps = testDependencies,
 )
 
 da_scala_test_suite(
     name = "bindings-java-tests",
-    srcs = glob(['src/test/**/*Spec.scala', 'src/test/**/*Test.scala']),
+    srcs = glob([
+        "src/test/**/*Spec.scala",
+        "src/test/**/*Test.scala",
+    ]),
     deps = [
         ":bindings-java-tests-lib",
-    ] + testDependencies
+    ] + testDependencies,
 )
 
-filegroup (
+filegroup(
     name = "sources",
-    srcs = glob(['src/main/java/**/*.java']),
-    visibility = [ '//visibility:public', ],
+    srcs = glob(["src/main/java/**/*.java"]),
+    visibility = ["//visibility:public"],
 )
diff --git a/language-support/java/codegen/BUILD.bazel b/language-support/java/codegen/BUILD.bazel
index ffc4ac9760..4a3e78f579 100644
--- a/language-support/java/codegen/BUILD.bazel
+++ b/language-support/java/codegen/BUILD.bazel
@@ -7,48 +7,47 @@ load(
     "da_scala_library",
     "da_scala_test",
 )
-
 load(
     "//rules_daml:daml.bzl",
     "daml_compile",
 )
-
 load(
     ":codegen.bzl",
     "dar_to_java",
-    "mangle_for_java"
+    "mangle_for_java",
 )
-
 load(
     "@com_github_johnynek_bazel_jar_jar//:jar_jar.bzl",
-    "jar_jar"
+    "jar_jar",
 )
-
 load("//bazel_tools:pom_file.bzl", "pom_file")
 
 da_scala_binary(
     name = "codegen",
+    data = ["//:COMPONENT-VERSION"],
     main_class = "com.digitalasset.daml.lf.codegen.StandaloneMain",
     visibility = ["//visibility:public"],
     deps = [":lib"],
-    data = [ "//:COMPONENT-VERSION" ]
 )
 
 da_scala_library(
     name = "lib",
     srcs = glob(["src/main/**/*.scala"]),
-    resources = ["src/main/resources/logback.xml", "//:COMPONENT-VERSION" ],
+    resources = [
+        "src/main/resources/logback.xml",
+        "//:COMPONENT-VERSION",
+    ],
     visibility = ["//visibility:public"],
     deps = [
         "//3rdparty/jvm/ch/qos/logback:logback_classic",
         "//3rdparty/jvm/com/github/scopt",
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
         "//3rdparty/jvm/com/squareup:javapoet",
         "//3rdparty/jvm/com/typesafe/scala_logging",
         "//3rdparty/jvm/org/scalaz:scalaz_core",
-        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+        "//daml-lf/archive:daml_lf_archive_scala",
         "//daml-lf/archive:daml_lf_java_proto",
         "//daml-lf/data",
-        "//daml-lf/archive:daml_lf_archive_scala",
         "//daml-lf/interface",
         "//language-support/java/bindings:bindings-java",
     ],
@@ -67,7 +66,7 @@ test_deps = [
     "//daml-lf/archive:daml_lf_java_proto",
     "//daml-lf/data",
     "//daml-lf/interface",
-    "//language-support/java/bindings:bindings-java"
+    "//language-support/java/bindings:bindings-java",
 ]
 
 ########################################################
@@ -76,16 +75,16 @@ test_deps = [
 da_scala_test(
     name = "test",
     srcs = glob(["src/test/**/*.scala"]),
+    data = [":test-daml.dar"],
     resource_strip_prefix = "language-support/java/codegen/src/test/resources",
     resources = glob(["src/test/resources/**/*"]),
-    data = [":test-daml.dar"],
     deps = test_deps,
 )
 
 daml_compile(
     name = "test-daml",
     main_src = "src/test/daml/test.daml",
-    target = "1.3"
+    target = "1.3",
 )
 
 jar_jar(
@@ -100,7 +99,11 @@ pom_file(
     target = ":shaded_binary",
 )
 
-daml_lf_target_versions = ["1.0", "1.1", "1.3"]
+daml_lf_target_versions = [
+    "1.0",
+    "1.1",
+    "1.3",
+]
 
 ########################################################
 ####  Integration Tests
@@ -116,8 +119,8 @@ daml_lf_target_versions = ["1.0", "1.1", "1.3"]
     [
         daml_compile(
             name = "integration-tests-model-%s" % target,
-            main_src = "src/it/daml/Lib.daml",
             srcs = glob(["src/it/daml/**/*.daml"]),
+            main_src = "src/it/daml/Lib.daml",
             target = target,
         ),
         dar_to_java(
@@ -127,8 +130,8 @@ daml_lf_target_versions = ["1.0", "1.1", "1.3"]
         dar_to_java(
             name = "integration-tests-model-%s" % target,
             src = ":integration-tests-model-%s.dar" % target,
-            package_prefix = "lf%s" % mangle_for_java(target)
-       )
+            package_prefix = "lf%s" % mangle_for_java(target),
+        ),
     ]
     for target in daml_lf_target_versions
 ]
@@ -136,33 +139,36 @@ daml_lf_target_versions = ["1.0", "1.1", "1.3"]
 [
     java_test(
         name = "integration-tests-%s" % target,
-        srcs = glob(["src/it/java-%s/**/*.java" % target, "src/it/java/**/*.java"]),
+        srcs = glob([
+            "src/it/java-%s/**/*.java" % target,
+            "src/it/java/**/*.java",
+        ]),
         test_class = "com.digitalasset.lf%s.AllTests" % mangle_for_java(target),
         deps = [
             ":integration-tests-model-%s.jar" % target,
             ":integration-tests-model-noprefix-%s.jar" % target,
+            "//3rdparty/jvm/com/google/protobuf:protobuf_java",
             "//3rdparty/jvm/org/junit/jupiter:junit_jupiter_api",
             "//3rdparty/jvm/org/junit/jupiter:junit_jupiter_engine",
             "//3rdparty/jvm/org/junit/platform:junit_platform_runner",
             "//language-support/java/bindings:bindings-java",
-            "//3rdparty/jvm/com/google/protobuf:protobuf_java",
             "//ledger/sandbox:sandbox-scala-tests-lib",
         ],
     )
     for target in daml_lf_target_versions
 ]
 
-
 ########################################################
 ####  Ledger Tests
 ########################################################
 
 daml_compile(
     name = "ledger-tests-model",
-    main_src = "src/ledger-tests/daml/Wolpertinger.daml",
     srcs = glob(["src/ledger-tests/daml/**/*.daml"]),
+    main_src = "src/ledger-tests/daml/Wolpertinger.daml",
     target = "1.1",
 )
+
 dar_to_java(
     name = "ledger-tests-model",
     src = "ledger-tests-model.dar",
@@ -171,6 +177,9 @@ dar_to_java(
 da_scala_test(
     name = "ledger-tests",
     srcs = glob(["src/ledger-tests/scala/**/*.scala"]),
+    data = [
+        ":ledger-tests-model.dar",
+    ],
     resource_strip_prefix = "language-support/java/codegen/src/ledger-tests/resources",
     resources = glob(["src/it/resources/**/*"]),
     deps = test_deps + [
@@ -183,8 +192,4 @@ da_scala_test(
         "//3rdparty/jvm/io/grpc:grpc_stub",
         "//3rdparty/jvm/io/reactivex/rxjava2:rxjava",
     ],
-    data = [
-        ":ledger-tests-model.dar"
-    ]
 )
-
diff --git a/language-support/java/codegen/codegen.bzl b/language-support/java/codegen/codegen.bzl
index ac192dc0f1..c5d310442d 100644
--- a/language-support/java/codegen/codegen.bzl
+++ b/language-support/java/codegen/codegen.bzl
@@ -27,11 +27,11 @@ def dar_to_java(**kwargs):
             $(execpath @local_jdk//:bin/jar) -cf $@ -C {gen_out} .
         """.format(
             gen_in = "$(location %s)=%s" % (dar, package_prefix),
-            gen_out = src_out
+            gen_out = src_out,
         ),
         tools = [
             "//language-support/java/codegen:codegen",
-            "@local_jdk//:bin/jar"
+            "@local_jdk//:bin/jar",
         ],
     )
 
diff --git a/language-support/java/testkit/BUILD.bazel b/language-support/java/testkit/BUILD.bazel
index fd390535f5..b8377c0264 100644
--- a/language-support/java/testkit/BUILD.bazel
+++ b/language-support/java/testkit/BUILD.bazel
@@ -2,22 +2,20 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//bazel_tools:scala.bzl",
-  "da_scala_library"
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
 )
+
 da_scala_library(
-	name = 'testkit',
-
-	srcs = glob(['src/main/scala/**/*.scala']),
-
-	deps = [
-		'//ledger-api/grpc-definitions:ledger-api-scalapb',
-		'//ledger-api/rs-grpc-bridge:rs-grpc-bridge',
-		"//3rdparty/jvm/com/google/code/findbugs:jsr305",
-		"//3rdparty/jvm/io/reactivex/rxjava2:rxjava"
-	],
-
-	visibility = [
-		'//visibility:public',
-	]
-)
\ No newline at end of file
+    name = "testkit",
+    srcs = glob(["src/main/scala/**/*.scala"]),
+    visibility = [
+        "//visibility:public",
+    ],
+    deps = [
+        "//3rdparty/jvm/com/google/code/findbugs:jsr305",
+        "//3rdparty/jvm/io/reactivex/rxjava2:rxjava",
+        "//ledger-api/grpc-definitions:ledger-api-scalapb",
+        "//ledger-api/rs-grpc-bridge",
+    ],
+)
diff --git a/language-support/js/BUILD b/language-support/js/BUILD
index aa787f4d3f..8186a937de 100644
--- a/language-support/js/BUILD
+++ b/language-support/js/BUILD
@@ -7,7 +7,7 @@ nodejs_binary(
         "@npm//grpc-tools",
     ],
     entry_point = "grpc-tools/bin/protoc.js",
-    visibility = ["//language-support/js:__subpackages__"]
+    visibility = ["//language-support/js:__subpackages__"],
 )
 
 nodejs_binary(
@@ -16,7 +16,7 @@ nodejs_binary(
         "@npm//grpc-tools",
     ],
     entry_point = "grpc-tools/bin/protoc_plugin.js",
-    visibility = ["//language-support/js:__subpackages__"]
+    visibility = ["//language-support/js:__subpackages__"],
 )
 
 nodejs_binary(
@@ -25,7 +25,7 @@ nodejs_binary(
         "@npm//grpc_tools_node_protoc_ts",
     ],
     entry_point = "grpc_tools_node_protoc_ts/bin/protoc-gen-ts",
-    visibility = ["//language-support/js:__subpackages__"]
+    visibility = ["//language-support/js:__subpackages__"],
 )
 
 nodejs_binary(
diff --git a/language-support/js/daml-codegen/BUILD b/language-support/js/daml-codegen/BUILD
index 807a650160..b90a5ace80 100644
--- a/language-support/js/daml-codegen/BUILD
+++ b/language-support/js/daml-codegen/BUILD
@@ -8,7 +8,7 @@ ts_config(
 
 filegroup(
     name = "src",
-    srcs = glob(["*.ts"])
+    srcs = glob(["*.ts"]),
 )
 
 # ts_library does not accept arbitrary inputs, so we use a genrule
@@ -43,4 +43,4 @@ genrule(
     tools = [
         "//language-support/js:tsc",
     ],
-)
\ No newline at end of file
+)
diff --git a/language-support/js/daml-grpc/BUILD b/language-support/js/daml-grpc/BUILD
index 63d3ea7266..3c36471355 100644
--- a/language-support/js/daml-grpc/BUILD
+++ b/language-support/js/daml-grpc/BUILD
@@ -5,65 +5,71 @@ load("//bazel_tools:proto.bzl", "proto_gen")
 proto_gen(
     name = "ledger-api-nodejs",
     srcs = ["//ledger-api/grpc-definitions:protos"],
+    plugin_exec = "//language-support/js:grpc_tools_node_protoc_js",
+    plugin_name = "js",
+    plugin_options = [
+        "import_style=commonjs",
+        "binary",
+    ],
     deps = [
-        "@com_google_protobuf//:empty_proto",
-        "@com_google_protobuf//:timestamp_proto",
-        "@com_google_protobuf//:duration_proto",
-        "@com_google_protobuf//:wrappers_proto",
+        "@com_github_googleapis_googleapis//google/rpc:status_proto",
         "@com_google_protobuf//:any_proto",
         "@com_google_protobuf//:descriptor_proto",
-        "@com_github_googleapis_googleapis//google/rpc:status_proto",
+        "@com_google_protobuf//:duration_proto",
+        "@com_google_protobuf//:empty_proto",
+        "@com_google_protobuf//:timestamp_proto",
+        "@com_google_protobuf//:wrappers_proto",
     ],
-    plugin_name = "js",
-    plugin_options = ["import_style=commonjs", "binary"],
-    plugin_exec = "//language-support/js:grpc_tools_node_protoc_js",
 )
 
 proto_gen(
     name = "ledger-api-nodejs-grpc",
     srcs = ["//ledger-api/grpc-definitions:protos"],
+    plugin_exec = "//language-support/js:grpc_tools_node_protoc_js",
+    plugin_name = "grpc",
     deps = [
-        "@com_google_protobuf//:empty_proto",
-        "@com_google_protobuf//:timestamp_proto",
-        "@com_google_protobuf//:duration_proto",
-        "@com_google_protobuf//:wrappers_proto",
+        "@com_github_googleapis_googleapis//google/rpc:status_proto",
         "@com_google_protobuf//:any_proto",
         "@com_google_protobuf//:descriptor_proto",
-        "@com_github_googleapis_googleapis//google/rpc:status_proto",
+        "@com_google_protobuf//:duration_proto",
+        "@com_google_protobuf//:empty_proto",
+        "@com_google_protobuf//:timestamp_proto",
+        "@com_google_protobuf//:wrappers_proto",
     ],
-    plugin_name = "grpc",
-    plugin_exec = "//language-support/js:grpc_tools_node_protoc_js",
 )
 
 proto_gen(
     name = "ledger-api-d.ts",
     srcs = ["//ledger-api/grpc-definitions:protos"],
+    plugin_exec = "//language-support/js:grpc_tools_node_protoc_ts",
+    plugin_name = "ts",
     deps = [
-        "@com_google_protobuf//:empty_proto",
-        "@com_google_protobuf//:timestamp_proto",
-        "@com_google_protobuf//:duration_proto",
-        "@com_google_protobuf//:wrappers_proto",
+        "@com_github_googleapis_googleapis//google/rpc:status_proto",
         "@com_google_protobuf//:any_proto",
         "@com_google_protobuf//:descriptor_proto",
-        "@com_github_googleapis_googleapis//google/rpc:status_proto",
+        "@com_google_protobuf//:duration_proto",
+        "@com_google_protobuf//:empty_proto",
+        "@com_google_protobuf//:timestamp_proto",
+        "@com_google_protobuf//:wrappers_proto",
     ],
-    plugin_name = "ts",
-    plugin_exec = "//language-support/js:grpc_tools_node_protoc_ts",
 )
 
 proto_gen(
     name = "daml_lf_proto-nodejs",
     srcs = ["//daml-lf/archive:daml_lf_proto"],
-    plugin_name = "js",
-    plugin_options = ["import_style=commonjs", "binary"],
     plugin_exec = "//language-support/js:grpc_tools_node_protoc_js",
+    plugin_name = "js",
+    plugin_options = [
+        "import_style=commonjs",
+        "binary",
+    ],
 )
 
 proto_gen(
     name = "daml_lf_proto-d.ts",
     srcs = ["//daml-lf/archive:daml_lf_proto"],
-    plugin_name = "ts",
     plugin_exec = "//language-support/js:grpc_tools_node_protoc_ts",
+    plugin_name = "ts",
 )
 
 proto_gen(
@@ -71,17 +77,20 @@ proto_gen(
     srcs = [
         "@com_github_googleapis_googleapis//google/rpc:status_proto",
     ],
+    plugin_exec = "//language-support/js:grpc_tools_node_protoc_js",
+    plugin_name = "js",
+    plugin_options = [
+        "import_style=commonjs",
+        "binary",
+    ],
     deps = [
-        "@com_google_protobuf//:empty_proto",
-        "@com_google_protobuf//:timestamp_proto",
-        "@com_google_protobuf//:duration_proto",
-        "@com_google_protobuf//:wrappers_proto",
         "@com_google_protobuf//:any_proto",
         "@com_google_protobuf//:descriptor_proto",
+        "@com_google_protobuf//:duration_proto",
+        "@com_google_protobuf//:empty_proto",
+        "@com_google_protobuf//:timestamp_proto",
+        "@com_google_protobuf//:wrappers_proto",
     ],
-    plugin_name = "js",
-    plugin_options = ["import_style=commonjs", "binary"],
-    plugin_exec = "//language-support/js:grpc_tools_node_protoc_js",
 )
 
 proto_gen(
@@ -89,16 +98,16 @@ proto_gen(
     srcs = [
         "@com_github_googleapis_googleapis//google/rpc:status_proto",
     ],
+    plugin_exec = "//language-support/js:grpc_tools_node_protoc_ts",
+    plugin_name = "ts",
     deps = [
-        "@com_google_protobuf//:empty_proto",
-        "@com_google_protobuf//:timestamp_proto",
-        "@com_google_protobuf//:duration_proto",
-        "@com_google_protobuf//:wrappers_proto",
         "@com_google_protobuf//:any_proto",
         "@com_google_protobuf//:descriptor_proto",
+        "@com_google_protobuf//:duration_proto",
+        "@com_google_protobuf//:empty_proto",
+        "@com_google_protobuf//:timestamp_proto",
+        "@com_google_protobuf//:wrappers_proto",
     ],
-    plugin_name = "ts",
-    plugin_exec = "//language-support/js:grpc_tools_node_protoc_ts",
 )
 
 ts_config(
@@ -151,7 +160,7 @@ genrule(
     tools = [
         "//language-support/js:tsc",
     ],
-    visibility = ["//:__subpackages__"]
+    visibility = ["//:__subpackages__"],
 )
 
 # nodejs_test does not support mocha, so we use sh_test
@@ -159,8 +168,8 @@ sh_test(
     name = "test",
     srcs = ["test.sh"],
     data = [
-        ":daml-grpc",
         "test.ts",
+        ":daml-grpc",
         "@nodejs//:node",
         "@npm//@types/chai",
         "@npm//@types/google-protobuf",
diff --git a/language-support/js/daml-ledger/BUILD b/language-support/js/daml-ledger/BUILD
index a90383ae93..d5748efaf0 100644
--- a/language-support/js/daml-ledger/BUILD
+++ b/language-support/js/daml-ledger/BUILD
@@ -9,18 +9,18 @@ ts_config(
 filegroup(
     name = "README",
     srcs = ["README.md"],
-    visibility = ['//language-support/js:__subpackages__'],
+    visibility = ["//language-support/js:__subpackages__"],
 )
 
 filegroup(
     name = "src",
     srcs = glob(["src/**/*.ts"]),
-    visibility = ['//language-support/js:__subpackages__'],
+    visibility = ["//language-support/js:__subpackages__"],
 )
 
 filegroup(
     name = "tests",
-    srcs = glob(["tests/**/*"])
+    srcs = glob(["tests/**/*"]),
 )
 
 # ts_library does not accept arbitrary inputs, so we use a genrule
@@ -51,7 +51,7 @@ genrule(
     tools = [
         "//language-support/js:tsc",
     ],
-    visibility = ["//:__subpackages__"]
+    visibility = ["//:__subpackages__"],
 )
 
 # nodejs_test does not support mocha, so we use sh_test
@@ -59,9 +59,9 @@ sh_test(
     name = "test",
     srcs = ["test.sh"],
     data = [
-        "//language-support/js/daml-grpc",
         ":src",
         ":tests",
+        "//language-support/js/daml-grpc",
         "@nodejs//:node",
         "@npm//@types/chai",
         "@npm//@types/google-protobuf",
diff --git a/language-support/js/docs/BUILD b/language-support/js/docs/BUILD
index d79cf1639f..f1694adc8b 100644
--- a/language-support/js/docs/BUILD
+++ b/language-support/js/docs/BUILD
@@ -1,20 +1,20 @@
 genrule(
     name = "docs",
-    tools = ['@npm//jsdoc/bin:jsdoc'],
     srcs = [
-        '//language-support/js/daml-ledger:src',
-        '//language-support/js/daml-ledger:README',
-        'jsdoc.json',
-        '@npm//ink-docstrap'
+        "//language-support/js/daml-ledger:src",
+        "//language-support/js/daml-ledger:README",
+        "jsdoc.json",
+        "@npm//ink-docstrap",
     ],
-    outs = ['docs.tar.gz'],
+    outs = ["docs.tar.gz"],
     cmd = """
         mv language-support/js/daml-ledger/* .
         ln -s external/npm/node_modules .
         $(execpath @npm//jsdoc/bin:jsdoc) -c $(location jsdoc.json)
         tar czf $@ docs
     """,
+    tools = ["@npm//jsdoc/bin:jsdoc"],
     visibility = [
-        '//:__subpackages__',
-    ]
+        "//:__subpackages__",
+    ],
 )
diff --git a/language-support/scala/bindings-akka-testing/BUILD.bazel b/language-support/scala/bindings-akka-testing/BUILD.bazel
index b9f592ef28..e1eda0d574 100644
--- a/language-support/scala/bindings-akka-testing/BUILD.bazel
+++ b/language-support/scala/bindings-akka-testing/BUILD.bazel
@@ -2,30 +2,30 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_library',
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
 )
 
 da_scala_library(
-  name = 'bindings-akka-testing',
-  deps = [
-    '//3rdparty/jvm/com/typesafe/akka:akka_http',
-    '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-    '//3rdparty/jvm/org/scalatest:scalatest',
-    '//3rdparty/jvm/com/typesafe/scala_logging:scala_logging',
-    '//3rdparty/jvm/ch/qos/logback:logback_classic',
-    '//3rdparty/jvm/org/slf4j:slf4j_api',
-    '//3rdparty/jvm/com/typesafe/akka:akka_slf4j',
-    '//3rdparty/jvm/com/github/pureconfig:pureconfig',
-    '//3rdparty/jvm/com/github/zafarkhaja:java_semver',
-    '//ledger/ledger-api-client',
-    '//ledger-api/rs-grpc-bridge',
-  ],
-  runtime_deps = [],
-  exports = [],
-  visibility = [
-    '//visibility:public',
-  ],
-  srcs = glob(['src/main/scala/**/*.scala']),
-  resources = glob(['src/main/resources/**/*']),
+    name = "bindings-akka-testing",
+    srcs = glob(["src/main/scala/**/*.scala"]),
+    resources = glob(["src/main/resources/**/*"]),
+    visibility = [
+        "//visibility:public",
+    ],
+    exports = [],
+    runtime_deps = [],
+    deps = [
+        "//3rdparty/jvm/ch/qos/logback:logback_classic",
+        "//3rdparty/jvm/com/github/pureconfig",
+        "//3rdparty/jvm/com/github/zafarkhaja:java_semver",
+        "//3rdparty/jvm/com/typesafe/akka:akka_http",
+        "//3rdparty/jvm/com/typesafe/akka:akka_slf4j",
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//3rdparty/jvm/com/typesafe/scala_logging",
+        "//3rdparty/jvm/org/scalatest",
+        "//3rdparty/jvm/org/slf4j:slf4j_api",
+        "//ledger-api/rs-grpc-bridge",
+        "//ledger/ledger-api-client",
+    ],
 )
diff --git a/language-support/scala/bindings-akka/BUILD.bazel b/language-support/scala/bindings-akka/BUILD.bazel
index 92e5fd8dbd..1784994911 100644
--- a/language-support/scala/bindings-akka/BUILD.bazel
+++ b/language-support/scala/bindings-akka/BUILD.bazel
@@ -2,42 +2,46 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_library', 'da_scala_test_suite',
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
 
 da_scala_library(
-  name = 'bindings-akka',
-  deps = [
-    '//3rdparty/jvm/ch/qos/logback:logback_classic',
-    '//language-support/scala/bindings',
-    '//language-support/java/bindings:bindings-java',
-    '//ledger-api/rs-grpc-akka',
-    '//ledger/ledger-api-client',
-    '//3rdparty/jvm/com/github/pureconfig:pureconfig',
-    '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-    '//3rdparty/jvm/com/typesafe/scala_logging:scala_logging',
-    '//3rdparty/jvm/io/netty:netty_tcnative_boringssl_static',
-    '//3rdparty/jvm/io/grpc:grpc_netty',
-    '//3rdparty/jvm/io/netty:netty_handler',
-    '//3rdparty/jvm/org/scalaz:scalaz_core',
-  ],
-  plugins = [
-    '//external:jar/org/spire_math/kind_projector_2_12',
-  ],
-  # TODO SC DEL-6727 for old Identifier field, to be removed when TemplateId.unapply changes back
-  # NOTE(JM): commented out deprecation warnings to get this to compile with the
-  # versions matching sbt. Please reenable when deprecations are fixed.
-  # scalacopts = ['-deprecation', '-Xfatal-warnings'],
-  scalacopts = ['-deprecation:false', '-Xfatal-warnings'],
-  runtime_deps = [],
-  exports = [],
-  visibility = [
-    '//visibility:public',
-  ],
-  srcs = glob(['src/main/**/*.scala']),
-  resources = glob(['src/main/resources/**/*']),
-  tags = ["maven_coordinates=com.daml.scala:bindings-akka:__VERSION__"],
+    name = "bindings-akka",
+    srcs = glob(["src/main/**/*.scala"]),
+    plugins = [
+        "//external:jar/org/spire_math/kind_projector_2_12",
+    ],
+    resources = glob(["src/main/resources/**/*"]),
+    # TODO SC DEL-6727 for old Identifier field, to be removed when TemplateId.unapply changes back
+    # NOTE(JM): commented out deprecation warnings to get this to compile with the
+    # versions matching sbt. Please reenable when deprecations are fixed.
+    # scalacopts = ['-deprecation', '-Xfatal-warnings'],
+    scalacopts = [
+        "-deprecation:false",
+        "-Xfatal-warnings",
+    ],
+    tags = ["maven_coordinates=com.daml.scala:bindings-akka:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
+    exports = [],
+    runtime_deps = [],
+    deps = [
+        "//3rdparty/jvm/ch/qos/logback:logback_classic",
+        "//3rdparty/jvm/com/github/pureconfig",
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//3rdparty/jvm/com/typesafe/scala_logging",
+        "//3rdparty/jvm/io/grpc:grpc_netty",
+        "//3rdparty/jvm/io/netty:netty_handler",
+        "//3rdparty/jvm/io/netty:netty_tcnative_boringssl_static",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//language-support/java/bindings:bindings-java",
+        "//language-support/scala/bindings",
+        "//ledger-api/rs-grpc-akka",
+        "//ledger/ledger-api-client",
+    ],
 )
 
 # Sources that do not define test-cases but utilities
@@ -46,68 +50,70 @@ da_scala_library(
 # Consider moving these files into a separate sub-directory
 # to enable source globbing for them.
 testing_utils = [
-  'src/test/scala/com/digitalasset/ledger/client/binding/SandboxBinding.scala',
+    "src/test/scala/com/digitalasset/ledger/client/binding/SandboxBinding.scala",
 ]
 
 da_scala_library(
-  name = 'bindings-akka-testing',
-  deps = [
-    '//3rdparty/jvm/ch/qos/logback:logback_classic',
-    '//language-support/scala/bindings',
-    '//ledger/ledger-api-client',
-    '//3rdparty/jvm/com/github/pureconfig:pureconfig',
-    '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-    '//3rdparty/jvm/com/typesafe/akka:akka_stream_testkit',
-    '//3rdparty/jvm/com/typesafe/scala_logging:scala_logging',
-    '//3rdparty/jvm/org/scalacheck:scalacheck',
-    '//3rdparty/jvm/org/scalatest:scalatest',
-    '//language-support/scala/bindings-akka-testing',
-    '//language-support/scala/sandbox-control',
-    '//3rdparty/jvm/io/grpc:grpc_netty',
-    '//3rdparty/jvm/io/netty:netty_handler',
-    '//ledger-api/rs-grpc-bridge',
-    ':bindings-akka',
-  ],
-  plugins = [
-    '//external:jar/org/spire_math/kind_projector_2_12',
-  ],
-  runtime_deps = [],
-  exports = [],
-  visibility = [
-    '//visibility:public',
-  ],
-  srcs = testing_utils,
+    name = "bindings-akka-testing",
+    srcs = testing_utils,
+    plugins = [
+        "//external:jar/org/spire_math/kind_projector_2_12",
+    ],
+    visibility = [
+        "//visibility:public",
+    ],
+    exports = [],
+    runtime_deps = [],
+    deps = [
+        ":bindings-akka",
+        "//3rdparty/jvm/ch/qos/logback:logback_classic",
+        "//3rdparty/jvm/com/github/pureconfig",
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream_testkit",
+        "//3rdparty/jvm/com/typesafe/scala_logging",
+        "//3rdparty/jvm/io/grpc:grpc_netty",
+        "//3rdparty/jvm/io/netty:netty_handler",
+        "//3rdparty/jvm/org/scalacheck",
+        "//3rdparty/jvm/org/scalatest",
+        "//language-support/scala/bindings",
+        "//language-support/scala/bindings-akka-testing",
+        "//language-support/scala/sandbox-control",
+        "//ledger-api/rs-grpc-bridge",
+        "//ledger/ledger-api-client",
+    ],
 )
 
 da_scala_test_suite(
-  name = 'tests',
-  deps = [
-    '//3rdparty/jvm/ch/qos/logback:logback_classic',
-    '//language-support/scala/bindings',
-    '//ledger/ledger-api-client',
-    '//ledger-api/rs-grpc-bridge',
-    '//language-support/java/bindings:bindings-java',
-    '//3rdparty/jvm/com/github/pureconfig:pureconfig',
-    '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-    '//3rdparty/jvm/com/typesafe/akka:akka_stream_testkit',
-    '//3rdparty/jvm/com/typesafe/scala_logging:scala_logging',
-    '//3rdparty/jvm/org/scalacheck:scalacheck',
-    '//3rdparty/jvm/org/scalatest:scalatest',
-    '//3rdparty/jvm/org/scalaz:scalaz_core',
-    '//language-support/scala/bindings-akka-testing',
-    '//language-support/scala/sandbox-control',
-    ':bindings-akka',
-    ':bindings-akka-testing',
-  ],
-  runtime_deps = [],
-  visibility = [
-    '//visibility:public',
-  ],
-  srcs = glob([
-    'src/test/**/*.scala'
-  ], exclude = testing_utils
-  ),
-  # NOTE(JM): commented out deprecation warnings to get this to compile with the
-  # versions matching sbt. Please remove when deprecations are fixed.
-  scalacopts = ['-deprecation:false'],
+    name = "tests",
+    srcs = glob(
+        [
+            "src/test/**/*.scala",
+        ],
+        exclude = testing_utils,
+    ),
+    # NOTE(JM): commented out deprecation warnings to get this to compile with the
+    # versions matching sbt. Please remove when deprecations are fixed.
+    scalacopts = ["-deprecation:false"],
+    visibility = [
+        "//visibility:public",
+    ],
+    runtime_deps = [],
+    deps = [
+        ":bindings-akka",
+        ":bindings-akka-testing",
+        "//3rdparty/jvm/ch/qos/logback:logback_classic",
+        "//3rdparty/jvm/com/github/pureconfig",
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream_testkit",
+        "//3rdparty/jvm/com/typesafe/scala_logging",
+        "//3rdparty/jvm/org/scalacheck",
+        "//3rdparty/jvm/org/scalatest",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//language-support/java/bindings:bindings-java",
+        "//language-support/scala/bindings",
+        "//language-support/scala/bindings-akka-testing",
+        "//language-support/scala/sandbox-control",
+        "//ledger-api/rs-grpc-bridge",
+        "//ledger/ledger-api-client",
+    ],
 )
diff --git a/language-support/scala/bindings/BUILD.bazel b/language-support/scala/bindings/BUILD.bazel
index 328e73912b..7e8c625711 100644
--- a/language-support/scala/bindings/BUILD.bazel
+++ b/language-support/scala/bindings/BUILD.bazel
@@ -2,51 +2,59 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//bazel_tools:scala.bzl",
-  "da_scala_test_suite",
-  "da_scala_library"
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
 
 da_scala_library(
-  name = "bindings",
-  srcs = glob(["src/main/**/*.scala"]),
-  deps = [
-    "//ledger-api/grpc-definitions:ledger-api-scalapb",
-    "//3rdparty/jvm/io/grpc:grpc_core",
-    "//3rdparty/jvm/org/scalaz:scalaz_core",
-    "//3rdparty/jvm/com/github/ghik:silencer_lib",
-  ],
-  exports = [
-    "//ledger-api/grpc-definitions:ledger-api-scalapb"
-  ],
-  plugins = [
-    "//external:jar/org/spire_math/kind_projector_2_12",
-    "//external:jar/com/github/ghik/silencer_plugin_2_12",
-  ],
-  # NOTE(JM): commented out deprecation warnings to get this to compile with the
-  # versions matching sbt. Please remove when deprecations are fixed.
-  scalacopts = ["-deprecation", "-Xfatal-warnings:false", "-Xsource:2.13"],
-  visibility = [
-      '//visibility:public',
-  ],
-  tags = ["maven_coordinates=com.daml.scala:bindings:__VERSION__"],
+    name = "bindings",
+    srcs = glob(["src/main/**/*.scala"]),
+    plugins = [
+        "//external:jar/org/spire_math/kind_projector_2_12",
+        "//external:jar/com/github/ghik/silencer_plugin_2_12",
+    ],
+    # NOTE(JM): commented out deprecation warnings to get this to compile with the
+    # versions matching sbt. Please remove when deprecations are fixed.
+    scalacopts = [
+        "-deprecation",
+        "-Xfatal-warnings:false",
+        "-Xsource:2.13",
+    ],
+    tags = ["maven_coordinates=com.daml.scala:bindings:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
+    exports = [
+        "//ledger-api/grpc-definitions:ledger-api-scalapb",
+    ],
+    deps = [
+        "//3rdparty/jvm/com/github/ghik:silencer_lib",
+        "//3rdparty/jvm/io/grpc:grpc_core",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//ledger-api/grpc-definitions:ledger-api-scalapb",
+    ],
 )
 
 da_scala_test_suite(
-  name = "tests",
-  size = "small",
-  srcs = glob(['src/test/**/*.scala']),
-  deps = [
-    ":bindings",
-    "//3rdparty/jvm/org/scalacheck:scalacheck",
-    "//3rdparty/jvm/org/scalaz:scalaz_core",
-    "//3rdparty/jvm/com/chuusai:shapeless",
-    "//3rdparty/jvm/org/scalatest:scalatest",
-  ],
-  plugins = [
-    "//external:jar/org/spire_math/kind_projector_2_12",
-  ],
-  # NOTE(JM): commented out deprecation warnings to get this to compile with the
-  # versions matching sbt. Please remove when deprecations are fixed.
-  scalacopts = ["-deprecation", "-Xfatal-warnings:false", "-Xsource:2.13"],
+    name = "tests",
+    size = "small",
+    srcs = glob(["src/test/**/*.scala"]),
+    plugins = [
+        "//external:jar/org/spire_math/kind_projector_2_12",
+    ],
+    # NOTE(JM): commented out deprecation warnings to get this to compile with the
+    # versions matching sbt. Please remove when deprecations are fixed.
+    scalacopts = [
+        "-deprecation",
+        "-Xfatal-warnings:false",
+        "-Xsource:2.13",
+    ],
+    deps = [
+        ":bindings",
+        "//3rdparty/jvm/com/chuusai:shapeless",
+        "//3rdparty/jvm/org/scalacheck",
+        "//3rdparty/jvm/org/scalatest",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+    ],
 )
diff --git a/language-support/scala/codegen-sample-app/BUILD.bazel b/language-support/scala/codegen-sample-app/BUILD.bazel
index 2a27fc2613..b1c03574e2 100644
--- a/language-support/scala/codegen-sample-app/BUILD.bazel
+++ b/language-support/scala/codegen-sample-app/BUILD.bazel
@@ -2,78 +2,74 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_binary',
-  'da_scala_library',
-  'da_scala_test',
+    "//bazel_tools:scala.bzl",
+    "da_scala_binary",
+    "da_scala_library",
+    "da_scala_test",
 )
 load(
-  '//rules_daml:daml.bzl',
-  'daml_compile',
+    "//rules_daml:daml.bzl",
+    "daml_compile",
 )
 load("@os_info//:os_info.bzl", "is_linux")
 
 daml_compile(
-  name = 'MyMain',
-  main_src = 'src/main/daml/MyMain.daml',
-  target = '1.3',
-  damlc = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated"
+    name = "MyMain",
+    damlc = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated",
+    main_src = "src/main/daml/MyMain.daml",
+    target = "1.3",
 )
 
 genrule(
-  name = 'MyMain-codegen',
-  srcs = [':MyMain'],
-  outs = ['MyMain-codegen-out'],
-  cmd = '$(execpath //language-support/scala/codegen:codegen-main) \
-  --input-file $(location :MyMain.dalf) \
-  --dependencies $(location //daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf) \
-  --package-name com.digitalasset.sample \
-  --output-dir $@',
-  tools = [
-    '//daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf',
-    '//language-support/scala/codegen:codegen-main',
-    ':MyMain.dalf',
-  ],
+    name = "MyMain-codegen",
+    srcs = [":MyMain"],
+    outs = ["MyMain-codegen-out"],
+    cmd = "$(execpath //language-support/scala/codegen:codegen-main)   --input-file $(location :MyMain.dalf)   --dependencies $(location //daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf)   --package-name com.digitalasset.sample   --output-dir $@",
+    tools = [
+        ":MyMain.dalf",
+        "//daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf",
+        "//language-support/scala/codegen:codegen-main",
+    ],
 )
 
 genrule(
-  name = 'MyMain-codegen.srcjar',
-  srcs = [':MyMain-codegen'],
-  outs = ['MyMain-codegen-out.srcjar'],
-  cmd = '$(execpath @local_jdk//:bin/jar) -cf $@ -C $(location :MyMain-codegen) .',
-  tools = [
-    '@local_jdk//:bin/jar',
-  ],
+    name = "MyMain-codegen.srcjar",
+    srcs = [":MyMain-codegen"],
+    outs = ["MyMain-codegen-out.srcjar"],
+    cmd = "$(execpath @local_jdk//:bin/jar) -cf $@ -C $(location :MyMain-codegen) .",
+    tools = [
+        "@local_jdk//:bin/jar",
+    ],
 )
 
 da_scala_library(
-  name = 'daml-lf-codegen-sample-app',
-  srcs = ['MyMain-codegen-out.srcjar'] + glob(['src/main/**/*.scala']),
-  plugins = [
-    # Plugins have to be specified as JARs.
-    '//external:jar/org/spire_math/kind_projector_2_12',
-  ],
-  # Bump stack size to avoid stack overflow in reflection.
-  scalac_jvm_flags = [
-    '-Xmx2G',
-    '-Xss2M',
-  ],
-  visibility = [
-    '//visibility:public',
-  ],
-  exports = [],
-  runtime_deps = [],
-  deps = [
-    '//3rdparty/jvm/ch/qos/logback:logback_classic',
-    '//3rdparty/jvm/com/typesafe/scala_logging:scala_logging',
-    '//3rdparty/jvm/org/scalaz:scalaz_core',
-    '//3rdparty/jvm/org/slf4j:slf4j_api',
-    '//daml-foundations/daml-tools/da-hs-damlc-app',
-    '//language-support/scala/codegen-testing',
-    '//language-support/scala/bindings-akka',
-    '//language-support/scala/bindings',
-    '//ledger/ledger-api-client',
-  ],
+    name = "daml-lf-codegen-sample-app",
+    srcs = ["MyMain-codegen-out.srcjar"] + glob(["src/main/**/*.scala"]),
+    plugins = [
+        # Plugins have to be specified as JARs.
+        "//external:jar/org/spire_math/kind_projector_2_12",
+    ],
+    # Bump stack size to avoid stack overflow in reflection.
+    scalac_jvm_flags = [
+        "-Xmx2G",
+        "-Xss2M",
+    ],
+    visibility = [
+        "//visibility:public",
+    ],
+    exports = [],
+    runtime_deps = [],
+    deps = [
+        "//3rdparty/jvm/ch/qos/logback:logback_classic",
+        "//3rdparty/jvm/com/typesafe/scala_logging",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//3rdparty/jvm/org/slf4j:slf4j_api",
+        "//daml-foundations/daml-tools/da-hs-damlc-app",
+        "//language-support/scala/bindings",
+        "//language-support/scala/bindings-akka",
+        "//language-support/scala/codegen-testing",
+        "//ledger/ledger-api-client",
+    ],
 )
 
 # Sources that do not define test-cases but utilities
@@ -82,74 +78,73 @@ da_scala_library(
 # Consider moving these files into a separate sub-directory
 # to enable source globbing for them.
 testing_utils = [
-  'src/test/scala/com/digitalasset/codegen/util/TestUtil.scala',
+    "src/test/scala/com/digitalasset/codegen/util/TestUtil.scala",
 ]
 
 da_scala_library(
-  name = 'daml-lf-codegen-sample-app-testing',
-  srcs = testing_utils,
-  resources = glob(['src/test/resources/**/*']),
-  scalacopts = ['-Xsource:2.13'],
-  deps = [
-    '//3rdparty/jvm/org/scalacheck:scalacheck',
-    '//3rdparty/jvm/org/scalatest:scalatest',
-    '//3rdparty/jvm/org/scalaz:scalaz_core',
-    '//language-support/scala/bindings-akka',
-    '//language-support/scala/bindings',
-
-    ':daml-lf-codegen-sample-app',
-  ],
+    name = "daml-lf-codegen-sample-app-testing",
+    srcs = testing_utils,
+    resources = glob(["src/test/resources/**/*"]),
+    scalacopts = ["-Xsource:2.13"],
+    deps = [
+        ":daml-lf-codegen-sample-app",
+        "//3rdparty/jvm/org/scalacheck",
+        "//3rdparty/jvm/org/scalatest",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//language-support/scala/bindings",
+        "//language-support/scala/bindings-akka",
+    ],
 )
 
 test_dependencies = [
-  '//3rdparty/jvm/io/spray:spray_json',
-  '//3rdparty/jvm/org/scalacheck:scalacheck',
-  '//3rdparty/jvm/org/scalaz:scalaz_core',
-  '//language-support/scala/codegen-testing',
-  '//language-support/scala/bindings',
-  ':daml-lf-codegen-sample-app',
-  ':daml-lf-codegen-sample-app-testing',
+    "//3rdparty/jvm/io/spray:spray_json",
+    "//3rdparty/jvm/org/scalacheck:scalacheck",
+    "//3rdparty/jvm/org/scalaz:scalaz_core",
+    "//language-support/scala/codegen-testing",
+    "//language-support/scala/bindings",
+    ":daml-lf-codegen-sample-app",
+    ":daml-lf-codegen-sample-app-testing",
 ]
 
 da_scala_test(
-  name = 'tests',
-  size = 'small',
-  srcs = glob(
-    [
-      'src/test/**/*.scala',
-    ],
-    exclude = testing_utils + [
-      'src/test/scala/com/digitalasset/codegen/ScalaCodeGenIT.scala',
-    ],
-  ),
-  scalacopts = ['-Xsource:2.13'],
-  deps = test_dependencies,
+    name = "tests",
+    size = "small",
+    srcs = glob(
+        [
+            "src/test/**/*.scala",
+        ],
+        exclude = testing_utils + [
+            "src/test/scala/com/digitalasset/codegen/ScalaCodeGenIT.scala",
+        ],
+    ),
+    scalacopts = ["-Xsource:2.13"],
+    deps = test_dependencies,
 )
 
 da_scala_test(
-  name = 'ScalaCodeGenIT',
-  size = 'large',
-  timeout = 'moderate',
-  srcs = [
-    'src/test/scala/com/digitalasset/codegen/ScalaCodeGenIT.scala',
-  ],
-  data = [
-    'src/test/resources/logback-sandbox.xml',
-    ':MyMain.dalf',
-    '//daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf',
-    '//ledger/sandbox:sandbox-binary_deploy.jar',
-  ],
-  jvm_flags = [
-    '-Dcom.digitalasset.sandbox.jar=ledger/sandbox/sandbox-binary_deploy.jar',
-  ],
-  scalacopts = ['-Xsource:2.13'],
-  deps = test_dependencies + [
-    '//3rdparty/jvm/com/typesafe/akka:akka_stream_testkit',
-    '//language-support/scala/bindings-akka',
-    '//ledger-api/rs-grpc-bridge:rs-grpc-bridge',
-    '//ledger-api/rs-grpc-akka',
-    '//ledger/ledger-api-client',
-    '//ledger/ledger-api-common',
-    '//ledger/sandbox',
-  ],
+    name = "ScalaCodeGenIT",
+    size = "large",
+    timeout = "moderate",
+    srcs = [
+        "src/test/scala/com/digitalasset/codegen/ScalaCodeGenIT.scala",
+    ],
+    data = [
+        "src/test/resources/logback-sandbox.xml",
+        ":MyMain.dalf",
+        "//daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf",
+        "//ledger/sandbox:sandbox-binary_deploy.jar",
+    ],
+    jvm_flags = [
+        "-Dcom.digitalasset.sandbox.jar=ledger/sandbox/sandbox-binary_deploy.jar",
+    ],
+    scalacopts = ["-Xsource:2.13"],
+    deps = test_dependencies + [
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream_testkit",
+        "//language-support/scala/bindings-akka",
+        "//ledger-api/rs-grpc-bridge:rs-grpc-bridge",
+        "//ledger-api/rs-grpc-akka",
+        "//ledger/ledger-api-client",
+        "//ledger/ledger-api-common",
+        "//ledger/sandbox",
+    ],
 )
diff --git a/language-support/scala/codegen-testing/BUILD.bazel b/language-support/scala/codegen-testing/BUILD.bazel
index 9f3965ab46..9149bf913e 100644
--- a/language-support/scala/codegen-testing/BUILD.bazel
+++ b/language-support/scala/codegen-testing/BUILD.bazel
@@ -2,31 +2,30 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_library',
-  'da_scala_test_suite',
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
 
-
 da_scala_library(
-  name = 'codegen-testing',
-  deps = [
-    '//language-support/scala/bindings',
-    '//ledger/ledger-api-client',
-    '//3rdparty/jvm/org/scalacheck:scalacheck',
-    '//3rdparty/jvm/org/scalaz:scalaz_core',
-    '//3rdparty/jvm/org/scalaz:scalaz_scalacheck_binding',
-  ],
-  plugins = [
-    # Plugins have to be specified as JARs.
-    '//external:jar/org/spire_math/kind_projector_2_12',
-  ],
-  runtime_deps = [],
-  exports = [],
-  visibility = [
-    '//visibility:public',
-  ],
-  srcs = glob(['src/main/**/*.scala']),
+    name = "codegen-testing",
+    srcs = glob(["src/main/**/*.scala"]),
+    plugins = [
+        # Plugins have to be specified as JARs.
+        "//external:jar/org/spire_math/kind_projector_2_12",
+    ],
+    visibility = [
+        "//visibility:public",
+    ],
+    exports = [],
+    runtime_deps = [],
+    deps = [
+        "//3rdparty/jvm/org/scalacheck",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//3rdparty/jvm/org/scalaz:scalaz_scalacheck_binding",
+        "//language-support/scala/bindings",
+        "//ledger/ledger-api-client",
+    ],
 )
 
 # Sources that do not define test-cases but utilities
@@ -35,50 +34,51 @@ da_scala_library(
 # Consider moving these files into a separate sub-directory
 # to enable source globbing for them.
 testing_utils = [
-  'src/test/scala/com/digitalasset/scalatest/CustomMatcher.scala',
-  'src/test/scala/com/digitalasset/ledger/client/binding/encoding/LfTypeEncodingSpec.scala',
-  'src/test/scala/com/digitalasset/ledger/client/binding/EncodingTestUtil.scala',
-  'src/test/scala/com/digitalasset/ledger/client/binding/ValueSpec.scala',
+    "src/test/scala/com/digitalasset/scalatest/CustomMatcher.scala",
+    "src/test/scala/com/digitalasset/ledger/client/binding/encoding/LfTypeEncodingSpec.scala",
+    "src/test/scala/com/digitalasset/ledger/client/binding/EncodingTestUtil.scala",
+    "src/test/scala/com/digitalasset/ledger/client/binding/ValueSpec.scala",
 ]
 
 da_scala_library(
-  name = 'codegen-testing-testing',
-  deps = [
-    '//language-support/scala/bindings',
-    '//ledger/ledger-api-client',
-    '//3rdparty/jvm/org/scalacheck:scalacheck',
-    '//3rdparty/jvm/org/scalatest:scalatest',
-    '//3rdparty/jvm/org/scalaz:scalaz_core',
-    ':codegen-testing',
-  ],
-  plugins = [
-    # Plugins have to be specified as JARs.
-    '//external:jar/org/spire_math/kind_projector_2_12',
-  ],
-  runtime_deps = [],
-  exports = [],
-  visibility = [
-    '//visibility:public',
-  ],
-  srcs = testing_utils,
+    name = "codegen-testing-testing",
+    srcs = testing_utils,
+    plugins = [
+        # Plugins have to be specified as JARs.
+        "//external:jar/org/spire_math/kind_projector_2_12",
+    ],
+    visibility = [
+        "//visibility:public",
+    ],
+    exports = [],
+    runtime_deps = [],
+    deps = [
+        ":codegen-testing",
+        "//3rdparty/jvm/org/scalacheck",
+        "//3rdparty/jvm/org/scalatest",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//language-support/scala/bindings",
+        "//ledger/ledger-api-client",
+    ],
 )
 
 da_scala_test_suite(
-  name = 'tests',
-  size = 'small',
-  deps = [
-    '//3rdparty/jvm/com/chuusai:shapeless',
-    '//language-support/scala/bindings',
-    '//3rdparty/jvm/org/apache/commons:commons_text',
-    '//3rdparty/jvm/org/scalacheck:scalacheck',
-    '//3rdparty/jvm/org/scalatest:scalatest',
-    '//3rdparty/jvm/org/scalaz:scalaz_core',
-    ':codegen-testing',
-    ':codegen-testing-testing',
-  ],
-  srcs = glob([
-    'src/test/**/*.scala'
-  ], exclude = testing_utils
-  ),
+    name = "tests",
+    size = "small",
+    srcs = glob(
+        [
+            "src/test/**/*.scala",
+        ],
+        exclude = testing_utils,
+    ),
+    deps = [
+        ":codegen-testing",
+        ":codegen-testing-testing",
+        "//3rdparty/jvm/com/chuusai:shapeless",
+        "//3rdparty/jvm/org/apache/commons:commons_text",
+        "//3rdparty/jvm/org/scalacheck",
+        "//3rdparty/jvm/org/scalatest",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//language-support/scala/bindings",
+    ],
 )
-
diff --git a/language-support/scala/codegen/BUILD.bazel b/language-support/scala/codegen/BUILD.bazel
index 3f6f973572..b7f6a1fef3 100644
--- a/language-support/scala/codegen/BUILD.bazel
+++ b/language-support/scala/codegen/BUILD.bazel
@@ -2,87 +2,88 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_library',
-  'da_scala_binary',
-  'da_scala_test_suite',
+    "//bazel_tools:scala.bzl",
+    "da_scala_binary",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
 
 common_scalacopts = [
-  '-Xelide-below', 'CONFIG',
+    "-Xelide-below",
+    "CONFIG",
 ]
 
 common_jvm_flags = [
-  '-Xmx2G',
+    "-Xmx2G",
 ]
 
 da_scala_library(
-  name = 'codegen',
-  deps = [
-    '//3rdparty/jvm/com/typesafe/scala_logging:scala_logging',
-    '//3rdparty/jvm/ch/qos/logback:logback_classic',
-    '//3rdparty/jvm/org/slf4j:slf4j_api',
-    '//daml-lf/archive:daml_lf_archive_scala',
-    '//daml-lf/archive:daml_lf_java_proto',
-    '//daml-lf/interface',
-    '//daml-lf/data',
-    '//3rdparty/jvm/org/scalaz:scalaz_core',
-    '//3rdparty/jvm/io/spray:spray_json',
-    '//3rdparty/jvm/com/google/protobuf:protobuf_java'
-  ],
-  scalacopts = common_scalacopts,
-  scalac_jvm_flags = common_jvm_flags,
-  plugins = [
-    # Plugins have to be specified as JARs.
-    '//external:jar/org/spire_math/kind_projector_2_12',
-  ],
-  runtime_deps = [],
-  exports = [],
-  visibility = [
-    '//visibility:public',
-  ],
-  srcs =
-    glob([
-      'src/main/scala/com/digitalasset/codegen/**/*.scala'
+    name = "codegen",
+    srcs =
+        glob(
+            [
+                "src/main/scala/com/digitalasset/codegen/**/*.scala",
+            ],
+            exclude = [
+                "src/main/scala/com/digitalasset/codegen/Main.scala",
+            ],
+        ),
+    plugins = [
+        # Plugins have to be specified as JARs.
+        "//external:jar/org/spire_math/kind_projector_2_12",
+    ],
+    scalac_jvm_flags = common_jvm_flags,
+    scalacopts = common_scalacopts,
+    tags = ["maven_coordinates=com.daml.scala:codegen:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
+    exports = [],
+    runtime_deps = [],
+    deps = [
+        "//3rdparty/jvm/ch/qos/logback:logback_classic",
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+        "//3rdparty/jvm/com/typesafe/scala_logging",
+        "//3rdparty/jvm/io/spray:spray_json",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//3rdparty/jvm/org/slf4j:slf4j_api",
+        "//daml-lf/archive:daml_lf_archive_scala",
+        "//daml-lf/archive:daml_lf_java_proto",
+        "//daml-lf/data",
+        "//daml-lf/interface",
     ],
-    exclude = [
-      'src/main/scala/com/digitalasset/codegen/Main.scala',
-    ]),
-  tags = ["maven_coordinates=com.daml.scala:codegen:__VERSION__"],
 )
 
 da_scala_binary(
-  name = 'codegen-main',
-  deps = [
-    ':codegen',
-    '//3rdparty/jvm/com/github/scopt:scopt',
-  ],
-  main_class = 'com.digitalasset.codegen.Main',
-  srcs = [
-    'src/main/scala/com/digitalasset/codegen/Main.scala'
-  ],
-  visibility = [
-    '//visibility:public',
-  ],
-  tags = ["maven_coordinates=com.daml.scala:codegen-main:__VERSION__"],
+    name = "codegen-main",
+    srcs = [
+        "src/main/scala/com/digitalasset/codegen/Main.scala",
+    ],
+    main_class = "com.digitalasset.codegen.Main",
+    tags = ["maven_coordinates=com.daml.scala:codegen-main:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
+    deps = [
+        ":codegen",
+        "//3rdparty/jvm/com/github/scopt",
+    ],
 )
 
 da_scala_test_suite(
-  name = "tests",
-  size = "small",
-  srcs = glob(['src/test/scala/**/*.scala']),
-  deps = [
-    ':codegen',
-
-    '//daml-lf/archive:daml_lf_archive_scala',
-    '//daml-lf/interface',
-    '//daml-lf/data',
-
-    '//3rdparty/jvm/org/scalacheck:scalacheck',
-    '//3rdparty/jvm/org/scalatest:scalatest',
-    '//3rdparty/jvm/org/mockito:mockito_core',
-    '//3rdparty/jvm/org/scalaz:scalaz_core'
-  ],
-  scalacopts = common_scalacopts,
-  jvm_flags = common_jvm_flags,
+    name = "tests",
+    size = "small",
+    srcs = glob(["src/test/scala/**/*.scala"]),
+    jvm_flags = common_jvm_flags,
+    scalacopts = common_scalacopts,
+    deps = [
+        ":codegen",
+        "//3rdparty/jvm/org/mockito:mockito_core",
+        "//3rdparty/jvm/org/scalacheck",
+        "//3rdparty/jvm/org/scalatest",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//daml-lf/archive:daml_lf_archive_scala",
+        "//daml-lf/data",
+        "//daml-lf/interface",
+    ],
 )
diff --git a/language-support/scala/sandbox-control/BUILD.bazel b/language-support/scala/sandbox-control/BUILD.bazel
index 6a760fc9df..1558b6d42b 100644
--- a/language-support/scala/sandbox-control/BUILD.bazel
+++ b/language-support/scala/sandbox-control/BUILD.bazel
@@ -1,39 +1,42 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load('//bazel_tools:scala.bzl', 'da_scala_library')
-load('//bazel_tools/java_testing:java_test_suite.bzl', 'java_test_suite')
+load("//bazel_tools:scala.bzl", "da_scala_library")
+load("//bazel_tools/java_testing:java_test_suite.bzl", "java_test_suite")
 
 da_scala_library(
-  name = 'sandbox-control',
-  deps = [
-    '//3rdparty/jvm/commons_io:commons_io',
-    '//3rdparty/jvm/com/typesafe/scala_logging:scala_logging',
-  ],
-  runtime_deps = [],
-  exports = [],
-  visibility = [
-    '//visibility:public',
-  ],
-  data = [
-    '//daml-foundations/daml-ghc/package-database:gen-daml-prim.dar',
-  ],
-  srcs = glob(['src/main/scala/**/*.scala', 'src/main/java/**/*.java']),
+    name = "sandbox-control",
+    srcs = glob([
+        "src/main/scala/**/*.scala",
+        "src/main/java/**/*.java",
+    ]),
+    data = [
+        "//daml-foundations/daml-ghc/package-database:gen-daml-prim.dar",
+    ],
+    visibility = [
+        "//visibility:public",
+    ],
+    exports = [],
+    runtime_deps = [],
+    deps = [
+        "//3rdparty/jvm/com/typesafe/scala_logging",
+        "//3rdparty/jvm/commons_io",
+    ],
 )
 
 java_test_suite(
-  name = 'tests',
-  deps = [
-    ':sandbox-control',
-    '//3rdparty/jvm/com/github/stefanbirkner:system_rules',
-    '//3rdparty/jvm/junit:junit',
-    '//3rdparty/jvm/org/hamcrest:hamcrest_all',
-    '//3rdparty/jvm/org/junit/jupiter:junit_jupiter_api',
-    '//3rdparty/jvm/org/junit/jupiter:junit_jupiter_engine',
-    '//3rdparty/jvm/org/junit/platform:junit_platform_runner',
-  ],
-  strip = 'src/test/java/',
-  srcs = glob([
-    'src/test/java/**/*.java',
-  ]),
+    name = "tests",
+    srcs = glob([
+        "src/test/java/**/*.java",
+    ]),
+    strip = "src/test/java/",
+    deps = [
+        ":sandbox-control",
+        "//3rdparty/jvm/com/github/stefanbirkner:system_rules",
+        "//3rdparty/jvm/junit",
+        "//3rdparty/jvm/org/hamcrest:hamcrest_all",
+        "//3rdparty/jvm/org/junit/jupiter:junit_jupiter_api",
+        "//3rdparty/jvm/org/junit/jupiter:junit_jupiter_engine",
+        "//3rdparty/jvm/org/junit/platform:junit_platform_runner",
+    ],
 )
diff --git a/ledger-api/BUILD.bazel b/ledger-api/BUILD.bazel
index 294e79d843..c6eb2558a6 100644
--- a/ledger-api/BUILD.bazel
+++ b/ledger-api/BUILD.bazel
@@ -1,3 +1,2 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
-
diff --git a/ledger-api/grpc-definitions/BUILD.bazel b/ledger-api/grpc-definitions/BUILD.bazel
index 7eaa0069d6..cfc2d6bdb4 100644
--- a/ledger-api/grpc-definitions/BUILD.bazel
+++ b/ledger-api/grpc-definitions/BUILD.bazel
@@ -7,81 +7,79 @@ load("//bazel_tools:pom_file.bzl", "pom_file")
 load("@io_bazel_rules_scala//scala:scala.bzl", "scala_library")
 
 proto_library(
-     name = 'protos',
-     proto_source_root = 'ledger-api/grpc-definitions',
-     srcs = glob(["**/*.proto"]),
-     deps = ['@com_google_protobuf//:empty_proto',
-            '@com_google_protobuf//:timestamp_proto',
-            '@com_google_protobuf//:duration_proto',
-            '@com_google_protobuf//:wrappers_proto',
-            '@com_google_protobuf//:any_proto',
-            '@com_google_protobuf//:descriptor_proto',
-            '@com_github_googleapis_googleapis//google/rpc:status_proto'
-    ],
+    name = "protos",
+    srcs = glob(["**/*.proto"]),
+    proto_source_root = "ledger-api/grpc-definitions",
     visibility = [
-        '//visibility:public',
-    ]
+        "//visibility:public",
+    ],
+    deps = [
+        "@com_github_googleapis_googleapis//google/rpc:status_proto",
+        "@com_google_protobuf//:any_proto",
+        "@com_google_protobuf//:descriptor_proto",
+        "@com_google_protobuf//:duration_proto",
+        "@com_google_protobuf//:empty_proto",
+        "@com_google_protobuf//:timestamp_proto",
+        "@com_google_protobuf//:wrappers_proto",
+    ],
 )
 
 pkg_tar(
-    name = 'ledger-api-protos',
-    strip_prefix = './',
-    srcs = glob(['**/*.proto']),
-    extension = 'tar.gz',
+    name = "ledger-api-protos",
+    srcs = glob(["**/*.proto"]),
+    extension = "tar.gz",
+    strip_prefix = "./",
     visibility = [
-        '//visibility:public',
-    ]
+        "//visibility:public",
+    ],
 )
 
 # FIXME(#448): This has the same contents as `:ledger-api-protos` but a
 # directory structure which is suitable for the SDK.
 pkg_tar(
-    name = 'ledger-api-protos-tarball',
-    strip_prefix = './',
-    package_dir = 'grpc-definitions',
-    srcs = glob(['**/*.proto']),
-    extension = 'tar.gz',
+    name = "ledger-api-protos-tarball",
+    srcs = glob(["**/*.proto"]),
+    extension = "tar.gz",
+    package_dir = "grpc-definitions",
+    strip_prefix = "./",
     visibility = [
-        '//visibility:public',
-    ]
+        "//visibility:public",
+    ],
 )
 
 proto_gen(
     name = "ledger-api-scalapb-sources",
     srcs = [":protos"],
-    deps = [
-        '@com_google_protobuf//:empty_proto',
-        '@com_google_protobuf//:timestamp_proto',
-        '@com_google_protobuf//:duration_proto',
-        '@com_google_protobuf//:wrappers_proto',
-        '@com_google_protobuf//:any_proto',
-        '@com_google_protobuf//:descriptor_proto',
-        '@com_github_googleapis_googleapis//google/rpc:status_proto',
-        '@com_github_googleapis_googleapis//google/rpc:code_proto',
-    ],
-    plugin_name = "scalapb",
     plugin_exec = "//scala-protoc-plugins/scalapb:protoc-gen-scalapb",
+    plugin_name = "scalapb",
     plugin_options = ["grpc"],
     visibility = [
-        '//visibility:public',
+        "//visibility:public",
+    ],
+    deps = [
+        "@com_github_googleapis_googleapis//google/rpc:code_proto",
+        "@com_github_googleapis_googleapis//google/rpc:status_proto",
+        "@com_google_protobuf//:any_proto",
+        "@com_google_protobuf//:descriptor_proto",
+        "@com_google_protobuf//:duration_proto",
+        "@com_google_protobuf//:empty_proto",
+        "@com_google_protobuf//:timestamp_proto",
+        "@com_google_protobuf//:wrappers_proto",
     ],
 )
 
 scalapb_deps = [
-    '//3rdparty/jvm/com/thesamet/scalapb:scalapb_runtime',
-    '//3rdparty/jvm/com/thesamet/scalapb:scalapb_runtime_grpc',
-    '//3rdparty/jvm/com/thesamet/scalapb:lenses',
-    '//3rdparty/jvm/com/google/protobuf:protobuf_java',
-    '//3rdparty/jvm/io/grpc:grpc_stub',
-    '//3rdparty/jvm/io/grpc:grpc_protobuf',
+    "//3rdparty/jvm/com/thesamet/scalapb:scalapb_runtime",
+    "//3rdparty/jvm/com/thesamet/scalapb:scalapb_runtime_grpc",
+    "//3rdparty/jvm/com/thesamet/scalapb:lenses",
+    "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+    "//3rdparty/jvm/io/grpc:grpc_stub",
+    "//3rdparty/jvm/io/grpc:grpc_protobuf",
 ]
 
 scala_library(
     name = "ledger-api-scalapb",
-    srcs = [':ledger-api-scalapb-sources'],
-    deps = scalapb_deps + [':google-rpc-scalapb'],
-    exports = scalapb_deps + [':google-rpc-scalapb'],
-    visibility = ['//visibility:public', ],
+    srcs = [":ledger-api-scalapb-sources"],
     tags = [
         "maven_coordinates=com.digitalasset.ledger-api.grpc-definitions:ledger-api-scalapb:__VERSION__",
         # the bazel rules depend on the source .proto files, which we do not release.
@@ -89,6 +87,9 @@ scala_library(
         # deps.
         "only_external_deps",
     ],
+    visibility = ["//visibility:public"],
+    exports = scalapb_deps + [":google-rpc-scalapb"],
+    deps = scalapb_deps + [":google-rpc-scalapb"],
 )
 
 pom_file(
@@ -99,62 +100,65 @@ pom_file(
 proto_gen(
     name = "google-rpc-sources",
     srcs = [
-        '@com_github_googleapis_googleapis//google/rpc:status_proto',
-        '@com_github_googleapis_googleapis//google/rpc:code_proto',
+        "@com_github_googleapis_googleapis//google/rpc:code_proto",
+        "@com_github_googleapis_googleapis//google/rpc:status_proto",
     ],
-    deps = [
-        '@com_google_protobuf//:any_proto',
-    ],
-    plugin_name = "scalapb",
     plugin_exec = "//scala-protoc-plugins/scalapb:protoc-gen-scalapb",
+    plugin_name = "scalapb",
     plugin_options = ["grpc"],
     visibility = [
-        '//visibility:public',
+        "//visibility:public",
+    ],
+    deps = [
+        "@com_google_protobuf//:any_proto",
     ],
 )
 
 scala_library(
     name = "google-rpc-scalapb",
-    srcs = [':google-rpc-sources'],
-    deps = scalapb_deps,
-    exports = scalapb_deps,
-    visibility = ['//visibility:public', ],
+    srcs = [":google-rpc-sources"],
     tags = ["maven_coordinates=com.digitalasset.ledger-api.grpc-definitions:ledger-api-scalapb:__VERSION__"],
+    visibility = ["//visibility:public"],
+    exports = scalapb_deps,
+    deps = scalapb_deps,
 )
 
 proto_gen(
     name = "ledger-api-docs",
-    srcs = [':protos'],
-    deps = [
-        '@com_google_protobuf//:empty_proto',
-        '@com_google_protobuf//:timestamp_proto',
-        '@com_google_protobuf//:duration_proto',
-        '@com_google_protobuf//:wrappers_proto',
-        '@com_google_protobuf//:any_proto',
-        '@com_google_protobuf//:descriptor_proto',
-        '@com_github_googleapis_googleapis//google/rpc:status_proto',
-        '@com_github_googleapis_googleapis//google/rpc:code_proto',
-    ],
-    plugin_name = "doc",
+    srcs = [":protos"],
     plugin_exec = "@com_github_pseudomuto_protoc_gen_doc//cmd/protoc-gen-doc:protoc-gen-doc",
+    plugin_name = "doc",
+    plugin_options = [
+        "ledger-api/grpc-definitions/rst_mmd.tmpl",
+        "docs.rst",
+    ],
     # this is _slightly_ hacky. we need to include the markdown template in the plugin_runfiles
     # and refer to the file with a workspace relative path in plugin_options
     plugin_runfiles = ["rst_mmd.tmpl"],
-    plugin_options = ["ledger-api/grpc-definitions/rst_mmd.tmpl", "docs.rst"],
     visibility = [
-        '//visibility:public',
+        "//visibility:public",
+    ],
+    deps = [
+        "@com_github_googleapis_googleapis//google/rpc:code_proto",
+        "@com_github_googleapis_googleapis//google/rpc:status_proto",
+        "@com_google_protobuf//:any_proto",
+        "@com_google_protobuf//:descriptor_proto",
+        "@com_google_protobuf//:duration_proto",
+        "@com_google_protobuf//:empty_proto",
+        "@com_google_protobuf//:timestamp_proto",
+        "@com_google_protobuf//:wrappers_proto",
     ],
 )
 
 genrule(
-    name = 'docs',
-    srcs = [':ledger-api-docs'],
-    tools = ["post-process.sh"],
-    outs = ['proto-docs.rst'],
+    name = "docs",
+    srcs = [":ledger-api-docs"],
+    outs = ["proto-docs.rst"],
     cmd = """
         unzip -q $(location :ledger-api-docs)
         $(location post-process.sh)
         mv docs.rst '$@'
     """,
-    visibility = ['//visibility:public', ],
+    tools = ["post-process.sh"],
+    visibility = ["//visibility:public"],
 )
diff --git a/ledger-api/perf-testing/BUILD.bazel b/ledger-api/perf-testing/BUILD.bazel
index 571e0cd3bb..d0b45e08e7 100644
--- a/ledger-api/perf-testing/BUILD.bazel
+++ b/ledger-api/perf-testing/BUILD.bazel
@@ -2,20 +2,20 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//bazel_tools:scala.bzl",
-  "da_scala_library"
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
 )
 
 da_scala_library(
     name = "perf-testing",
-    srcs = glob(['src/**/*.scala']),
-    deps = [
-        '//ledger-api/testing-utils:testing-utils',
-        "//3rdparty/jvm/com/storm_enroute:scalameter",
-        '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-        '//3rdparty/jvm/org/slf4j:slf4j_api',
-    ],
+    srcs = glob(["src/**/*.scala"]),
     visibility = [
-        '//visibility:public',
-    ]
-)
\ No newline at end of file
+        "//visibility:public",
+    ],
+    deps = [
+        "//3rdparty/jvm/com/storm_enroute:scalameter",
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//3rdparty/jvm/org/slf4j:slf4j_api",
+        "//ledger-api/testing-utils",
+    ],
+)
diff --git a/ledger-api/rs-grpc-akka/BUILD.bazel b/ledger-api/rs-grpc-akka/BUILD.bazel
index a1afbf7fac..c241b6870a 100644
--- a/ledger-api/rs-grpc-akka/BUILD.bazel
+++ b/ledger-api/rs-grpc-akka/BUILD.bazel
@@ -1,71 +1,77 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load("//bazel_tools:scala.bzl", "da_scala_library", "da_scala_test_suite", "da_scala_binary")
+load("//bazel_tools:scala.bzl", "da_scala_binary", "da_scala_library", "da_scala_test_suite")
 
 da_scala_library(
-    name = 'rs-grpc-akka',
-
-    srcs = glob(['src/main/scala/**/*.scala']),
-
-    deps = [
-        '//ledger-api/rs-grpc-bridge:rs-grpc-bridge',
-        '//3rdparty/jvm/io/grpc:grpc_stub',
-        '//3rdparty/jvm/org/slf4j:slf4j_api',
-        '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-        '//3rdparty/jvm/com/typesafe/akka:akka_slf4j',
-    ],
-
-    visibility = [
-        '//visibility:public',
-    ],
+    name = "rs-grpc-akka",
+    srcs = glob(["src/main/scala/**/*.scala"]),
     tags = ["maven_coordinates=com.digitalasset.ledger-api:rs-grpc-akka:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
+    deps = [
+        "//3rdparty/jvm/com/typesafe/akka:akka_slf4j",
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//3rdparty/jvm/io/grpc:grpc_stub",
+        "//3rdparty/jvm/org/slf4j:slf4j_api",
+        "//ledger-api/rs-grpc-bridge",
+    ],
 )
 
 testDependencies = [
-    '//3rdparty/jvm/io/grpc:grpc_netty',
-    '//3rdparty/jvm/io/grpc:grpc_stub',
-    ':rs-grpc-akka',
-    '//ledger-api/testing-utils:testing-utils',
-    '//ledger-api/sample-service:sample-service',
-    '//ledger-api/rs-grpc-bridge:rs-grpc-bridge',
-    '//ledger-api/rs-grpc-bridge:rs-grpc-bridge-test',
-    '//3rdparty/jvm/org/scalatest:scalatest',
-    '//3rdparty/jvm/ch/qos/logback:logback_classic',
-    '//3rdparty/jvm/com/typesafe/akka:akka_stream_testkit',
+    "//3rdparty/jvm/io/grpc:grpc_netty",
+    "//3rdparty/jvm/io/grpc:grpc_stub",
+    ":rs-grpc-akka",
+    "//ledger-api/testing-utils:testing-utils",
+    "//ledger-api/sample-service:sample-service",
+    "//ledger-api/rs-grpc-bridge:rs-grpc-bridge",
+    "//ledger-api/rs-grpc-bridge:rs-grpc-bridge-test",
+    "//3rdparty/jvm/org/scalatest:scalatest",
+    "//3rdparty/jvm/ch/qos/logback:logback_classic",
+    "//3rdparty/jvm/com/typesafe/akka:akka_stream_testkit",
     "//3rdparty/jvm/com/google/protobuf:protobuf_java",
     "//3rdparty/jvm/org/awaitility:awaitility",
-    '//3rdparty/jvm/com/thesamet/scalapb:scalapb_runtime_grpc',
+    "//3rdparty/jvm/com/thesamet/scalapb:scalapb_runtime_grpc",
 ]
 
 da_scala_library(
-  name = "rs-grpc-akka-tests-lib",
-  srcs = glob(['src/test/**/*.scala'], exclude = ['src/test/**/*Spec.scala', 'src/test/**/*Test.scala']),
-  deps = testDependencies,
+    name = "rs-grpc-akka-tests-lib",
+    srcs = glob(
+        ["src/test/**/*.scala"],
+        exclude = [
+            "src/test/**/*Spec.scala",
+            "src/test/**/*Test.scala",
+        ],
+    ),
+    deps = testDependencies,
 )
 
 da_scala_test_suite(
     name = "rs-grpc-akka-tests",
-    srcs = glob(['src/test/**/*Spec.scala', 'src/test/**/*Test.scala']),
+    srcs = glob([
+        "src/test/**/*Spec.scala",
+        "src/test/**/*Test.scala",
+    ]),
     deps = [
         ":rs-grpc-akka-tests-lib",
-    ] + testDependencies
+    ] + testDependencies,
 )
 
 da_scala_binary(
     name = "rs-grpc-akka-perf",
-    srcs = glob(['src/perf/**/*.scala']),
+    srcs = glob(["src/perf/**/*.scala"]),
     main_class = "com.digitalasset.grpc.adapter.ServerStreamingBenchmark",
     deps = [
-        '//3rdparty/jvm/io/grpc:grpc_core',
-        ':rs-grpc-akka',
-        ':rs-grpc-akka-tests-lib',
-        '//ledger-api/perf-testing:perf-testing',
-        '//ledger-api/testing-utils:testing-utils',
-        '//ledger-api/sample-service:sample-service',
-        '//ledger-api/rs-grpc-bridge:rs-grpc-bridge',
+        ":rs-grpc-akka",
+        ":rs-grpc-akka-tests-lib",
         "//3rdparty/jvm/com/storm_enroute:scalameter",
-        '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-        '//3rdparty/jvm/com/thesamet/scalapb:scalapb_runtime_grpc',
-    ]
+        "//3rdparty/jvm/com/thesamet/scalapb:scalapb_runtime_grpc",
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//3rdparty/jvm/io/grpc:grpc_core",
+        "//ledger-api/perf-testing",
+        "//ledger-api/rs-grpc-bridge",
+        "//ledger-api/sample-service",
+        "//ledger-api/testing-utils",
+    ],
 )
diff --git a/ledger-api/rs-grpc-bridge/BUILD.bazel b/ledger-api/rs-grpc-bridge/BUILD.bazel
index 389b8a7349..5efa39b0cb 100644
--- a/ledger-api/rs-grpc-bridge/BUILD.bazel
+++ b/ledger-api/rs-grpc-bridge/BUILD.bazel
@@ -5,42 +5,38 @@ load("//bazel_tools:scala.bzl", "da_scala_library")
 load("//bazel_tools:java.bzl", "da_java_library")
 
 da_java_library(
-    name = 'rs-grpc-bridge',
-
-    srcs = glob(['src/main/java/**/*.java']),
-
-    deps = [
-        '//3rdparty/jvm/org/slf4j:slf4j_api',
-        '//3rdparty/jvm/io/grpc:grpc_stub',
-        "//3rdparty/jvm/com/google/code/findbugs:jsr305",
-        '//3rdparty/jvm/org/reactivestreams:reactive_streams',
-    ],
-
-    visibility = [
-        '//visibility:public',
-    ],
+    name = "rs-grpc-bridge",
+    srcs = glob(["src/main/java/**/*.java"]),
     tags = ["maven_coordinates=com.digitalasset.ledger-api:rs-grpc-bridge:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
+    deps = [
+        "//3rdparty/jvm/com/google/code/findbugs:jsr305",
+        "//3rdparty/jvm/io/grpc:grpc_stub",
+        "//3rdparty/jvm/org/reactivestreams:reactive_streams",
+        "//3rdparty/jvm/org/slf4j:slf4j_api",
+    ],
 )
 
-
 da_scala_library(
-    name = 'rs-grpc-bridge-test',
-
-    srcs = glob(['src/test/java/**/*.java', 'src/test/scala/**/*.scala']),
-
-    resources = glob(["src/test/resources/**/*"]),
+    name = "rs-grpc-bridge-test",
+    srcs = glob([
+        "src/test/java/**/*.java",
+        "src/test/scala/**/*.scala",
+    ]),
     resource_strip_prefix = "ledger-api/rs-grpc-bridge/src/test/resources",
-    deps = [
-        ':rs-grpc-bridge',
-        '//3rdparty/jvm/org/slf4j:slf4j_api',
-        '//3rdparty/jvm/io/grpc:grpc_stub',
-        "//3rdparty/jvm/com/google/code/findbugs:jsr305",
-        '//3rdparty/jvm/org/reactivestreams:reactive_streams',
-        '//3rdparty/jvm/org/reactivestreams:reactive_streams_tck',
-        "//3rdparty/jvm/org/scalatest:scalatest",
-    ],
-
+    resources = glob(["src/test/resources/**/*"]),
     visibility = [
-        '//visibility:public',
-    ]
+        "//visibility:public",
+    ],
+    deps = [
+        ":rs-grpc-bridge",
+        "//3rdparty/jvm/com/google/code/findbugs:jsr305",
+        "//3rdparty/jvm/io/grpc:grpc_stub",
+        "//3rdparty/jvm/org/reactivestreams:reactive_streams",
+        "//3rdparty/jvm/org/reactivestreams:reactive_streams_tck",
+        "//3rdparty/jvm/org/scalatest",
+        "//3rdparty/jvm/org/slf4j:slf4j_api",
+    ],
 )
diff --git a/ledger-api/sample-service/BUILD.bazel b/ledger-api/sample-service/BUILD.bazel
index 13c7ddcd21..08d710643b 100644
--- a/ledger-api/sample-service/BUILD.bazel
+++ b/ledger-api/sample-service/BUILD.bazel
@@ -13,41 +13,41 @@ proto_library(
 proto_gen(
     name = "sample-service-scalapb-sources",
     srcs = [":sample-service-proto"],
-    plugin_name = "scalapb",
     plugin_exec = "//scala-protoc-plugins/scalapb:protoc-gen-scalapb",
+    plugin_name = "scalapb",
     plugin_options = ["grpc"],
     visibility = [
-        '//visibility:public',
-    ]
+        "//visibility:public",
+    ],
 )
 
 scalapb_deps = [
-    '//3rdparty/jvm/com/thesamet/scalapb:scalapb_runtime',
-    '//3rdparty/jvm/com/thesamet/scalapb:scalapb_runtime_grpc',
-    '//3rdparty/jvm/com/google/protobuf:protobuf_java',
-    '//3rdparty/jvm/io/grpc:grpc_stub',
-    '//3rdparty/jvm/io/grpc:grpc_protobuf',
-    '//3rdparty/jvm/com/thesamet/scalapb:lenses',
+    "//3rdparty/jvm/com/thesamet/scalapb:scalapb_runtime",
+    "//3rdparty/jvm/com/thesamet/scalapb:scalapb_runtime_grpc",
+    "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+    "//3rdparty/jvm/io/grpc:grpc_stub",
+    "//3rdparty/jvm/io/grpc:grpc_protobuf",
+    "//3rdparty/jvm/com/thesamet/scalapb:lenses",
 ]
 
 scala_library(
     name = "sample-service-scalapb",
     srcs = [":sample-service-scalapb-sources"],
-    deps = scalapb_deps
+    deps = scalapb_deps,
 )
 
 da_scala_library(
     name = "sample-service",
-    srcs = glob(['src/**/*.scala']),
+    srcs = glob(["src/**/*.scala"]),
+    visibility = [
+        "//visibility:public",
+    ],
     exports = [
-        ':sample-service-scalapb'
+        ":sample-service-scalapb",
     ],
     deps = [
-        ':sample-service-scalapb',
+        ":sample-service-scalapb",
         "//3rdparty/jvm/org/scalatest:scalatest",
-        '//ledger-api/testing-utils:testing-utils',
+        "//ledger-api/testing-utils:testing-utils",
     ] + scalapb_deps,
-    visibility = [
-        '//visibility:public',
-    ]
-)
\ No newline at end of file
+)
diff --git a/ledger-api/testing-utils/BUILD.bazel b/ledger-api/testing-utils/BUILD.bazel
index 2fe259f1d4..f3d8766dc7 100644
--- a/ledger-api/testing-utils/BUILD.bazel
+++ b/ledger-api/testing-utils/BUILD.bazel
@@ -2,22 +2,22 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//bazel_tools:scala.bzl",
-  "da_scala_library"
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
 )
 
 da_scala_library(
     name = "testing-utils",
-    srcs = glob(['src/**/*.scala']),
+    srcs = glob(["src/**/*.scala"]),
+    tags = ["maven_coordinates=com.digitalasset.ledger-api:testing-utils:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
     deps = [
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
         "//3rdparty/jvm/io/grpc:grpc_core",
         "//3rdparty/jvm/io/grpc:grpc_netty",
-        '//ledger-api/grpc-definitions:ledger-api-scalapb',
-        "//3rdparty/jvm/org/scalatest:scalatest",
-        '//3rdparty/jvm/com/typesafe/akka:akka_stream',
+        "//3rdparty/jvm/org/scalatest",
+        "//ledger-api/grpc-definitions:ledger-api-scalapb",
     ],
-    visibility = [
-        '//visibility:public',
-    ],
-    tags = ["maven_coordinates=com.digitalasset.ledger-api:testing-utils:__VERSION__"],
 )
diff --git a/ledger/api-server-damlonx/BUILD.bazel b/ledger/api-server-damlonx/BUILD.bazel
index ac061f9763..6f48ef252d 100644
--- a/ledger/api-server-damlonx/BUILD.bazel
+++ b/ledger/api-server-damlonx/BUILD.bazel
@@ -2,51 +2,42 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_library',
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
 )
 
 da_scala_library(
-  name = 'api-server-damlonx',
-  srcs = glob(['src/main/scala/**/*.scala']),
-  resources = glob(['src/main/resources/**/*']),
-  deps = [
-    '//3rdparty/jvm/io/grpc:grpc_services',
-
-    '//ledger/participant-state',
-    '//ledger/participant-state-index',
-
-    '//ledger-api/rs-grpc-bridge',
-    '//ledger-api/rs-grpc-akka',
-
-    '//language-support/scala/bindings',
-
-    '//ledger/ledger-api-akka',
-    '//ledger/ledger-api-scala-logging',
-    '//ledger/ledger-api-domain',
-    '//ledger/ledger-api-common',
-    '//ledger/ledger-api-client',
-
-    '//daml-lf/transaction',
-    '//daml-lf/data',
-    '//daml-lf/lfpackage',
-    '//daml-lf/archive:daml_lf_java_proto',
-    '//daml-lf/archive:daml_lf_archive_scala',
-    '//daml-lf/engine',
-    '//daml-lf/interpreter',
-
-    '//3rdparty/jvm/org/slf4j:slf4j_api',
-    '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-    '//3rdparty/jvm/com/google/protobuf:protobuf_java',
-    '//3rdparty/jvm/org/scalaz:scalaz_core',
-    "//3rdparty/jvm/io/grpc:grpc_netty",
-    "//3rdparty/jvm/io/netty:netty_handler",
-
-
-  ],
-  runtime_deps = [],
-  visibility = [
-    '//visibility:public',
-  ],
+    name = "api-server-damlonx",
+    srcs = glob(["src/main/scala/**/*.scala"]),
+    resources = glob(["src/main/resources/**/*"]),
+    visibility = [
+        "//visibility:public",
+    ],
+    runtime_deps = [],
+    deps = [
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//3rdparty/jvm/io/grpc:grpc_netty",
+        "//3rdparty/jvm/io/grpc:grpc_services",
+        "//3rdparty/jvm/io/netty:netty_handler",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//3rdparty/jvm/org/slf4j:slf4j_api",
+        "//daml-lf/archive:daml_lf_archive_scala",
+        "//daml-lf/archive:daml_lf_java_proto",
+        "//daml-lf/data",
+        "//daml-lf/engine",
+        "//daml-lf/interpreter",
+        "//daml-lf/lfpackage",
+        "//daml-lf/transaction",
+        "//language-support/scala/bindings",
+        "//ledger-api/rs-grpc-akka",
+        "//ledger-api/rs-grpc-bridge",
+        "//ledger/ledger-api-akka",
+        "//ledger/ledger-api-client",
+        "//ledger/ledger-api-common",
+        "//ledger/ledger-api-domain",
+        "//ledger/ledger-api-scala-logging",
+        "//ledger/participant-state",
+        "//ledger/participant-state-index",
+    ],
 )
-
diff --git a/ledger/api-server-damlonx/reference/BUILD.bazel b/ledger/api-server-damlonx/reference/BUILD.bazel
index 8c6f2b77e6..6546e21690 100644
--- a/ledger/api-server-damlonx/reference/BUILD.bazel
+++ b/ledger/api-server-damlonx/reference/BUILD.bazel
@@ -2,35 +2,32 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_binary',
+    "//bazel_tools:scala.bzl",
+    "da_scala_binary",
 )
 
 da_scala_binary(
-  name = 'reference',
-  srcs = glob(['src/main/scala/**/*.scala']),
-  resources = glob(['src/main/resources/**/*']),
-  main_class = 'com.daml.ledger.api.server.damlonx.reference.ReferenceServer',
-  deps = [
-    '//ledger/api-server-damlonx',
-    '//ledger/participant-state',
-    '//ledger/participant-state/reference',
-    '//ledger/participant-state-index',
-    '//ledger/participant-state-index/reference',
-    '//ledger/ledger-api-common:ledger-api-common',
-    '//language-support/scala/bindings',
-
-    '//daml-lf/data',
-    '//daml-lf/lfpackage',
-    '//daml-lf/archive:daml_lf_java_proto',
-    '//daml-lf/archive:daml_lf_archive_scala',
-
-    '//3rdparty/jvm/org/slf4j:slf4j_api',
-    '//3rdparty/jvm/com/typesafe/akka:akka_stream',
+    name = "reference",
+    srcs = glob(["src/main/scala/**/*.scala"]),
+    main_class = "com.daml.ledger.api.server.damlonx.reference.ReferenceServer",
+    resources = glob(["src/main/resources/**/*"]),
+    runtime_deps = [
+        "//3rdparty/jvm/ch/qos/logback:logback_classic",
+        "//3rdparty/jvm/ch/qos/logback:logback_core",
+    ],
+    deps = [
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//3rdparty/jvm/org/slf4j:slf4j_api",
+        "//daml-lf/archive:daml_lf_archive_scala",
+        "//daml-lf/archive:daml_lf_java_proto",
+        "//daml-lf/data",
+        "//daml-lf/lfpackage",
+        "//language-support/scala/bindings",
+        "//ledger/api-server-damlonx",
+        "//ledger/ledger-api-common",
+        "//ledger/participant-state",
+        "//ledger/participant-state-index",
+        "//ledger/participant-state-index/reference",
+        "//ledger/participant-state/reference",
     ],
-
-  runtime_deps = [
-    '//3rdparty/jvm/ch/qos/logback:logback_core',
-    '//3rdparty/jvm/ch/qos/logback:logback_classic'
-  ],
 )
diff --git a/ledger/backend-api/BUILD.bazel b/ledger/backend-api/BUILD.bazel
index ba6e27fd0a..0b2d6192f8 100644
--- a/ledger/backend-api/BUILD.bazel
+++ b/ledger/backend-api/BUILD.bazel
@@ -2,30 +2,28 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_test_suite',
-  'da_scala_library'
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
 
 da_scala_library(
-  name = 'backend-api',
-  srcs = glob(['src/main/scala/**/*.scala']),
-  resources = glob(['src/main/resources/**/*']),
-  deps = [
-    '//daml-lf/transaction',
-    '//daml-lf/data',
-    '//daml-lf/lfpackage',
-    '//daml-lf/archive:daml_lf_java_proto',
-    '//daml-lf/archive:daml_lf_archive_scala',
-
-    '//3rdparty/jvm/org/slf4j:slf4j_api',
-    '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-    '//3rdparty/jvm/com/google/protobuf:protobuf_java',
-  ],
-  runtime_deps = [],
-  visibility = [
-    '//visibility:public',
-  ],
-  tags = ["maven_coordinates=com.digitalasset.ledger:ledger-backend-api:__VERSION__"],
+    name = "backend-api",
+    srcs = glob(["src/main/scala/**/*.scala"]),
+    resources = glob(["src/main/resources/**/*"]),
+    tags = ["maven_coordinates=com.digitalasset.ledger:ledger-backend-api:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
+    runtime_deps = [],
+    deps = [
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//3rdparty/jvm/org/slf4j:slf4j_api",
+        "//daml-lf/archive:daml_lf_archive_scala",
+        "//daml-lf/archive:daml_lf_java_proto",
+        "//daml-lf/data",
+        "//daml-lf/lfpackage",
+        "//daml-lf/transaction",
+    ],
 )
-
diff --git a/ledger/ledger-api-akka/BUILD.bazel b/ledger/ledger-api-akka/BUILD.bazel
index b4ab18ae89..0acf525338 100644
--- a/ledger/ledger-api-akka/BUILD.bazel
+++ b/ledger/ledger-api-akka/BUILD.bazel
@@ -6,32 +6,32 @@ load("//bazel_tools:proto.bzl", "proto_gen")
 
 proto_gen(
     name = "ledger-api-akka-srcs",
-    srcs = ['//ledger-api/grpc-definitions:protos'],
+    srcs = ["//ledger-api/grpc-definitions:protos"],
+    plugin_exec = "//scala-protoc-plugins/scala-akka:protoc-gen-scala-akka",
+    plugin_name = "scala-akka",
     deps = [
-        '@com_google_protobuf//:empty_proto',
-        '@com_google_protobuf//:timestamp_proto',
-        '@com_google_protobuf//:duration_proto',
-        '@com_google_protobuf//:wrappers_proto',
-        '@com_google_protobuf//:any_proto',
-        '@com_google_protobuf//:descriptor_proto',
-        '@com_github_googleapis_googleapis//google/rpc:status_proto',
+        "@com_github_googleapis_googleapis//google/rpc:status_proto",
+        "@com_google_protobuf//:any_proto",
+        "@com_google_protobuf//:descriptor_proto",
+        "@com_google_protobuf//:duration_proto",
+        "@com_google_protobuf//:empty_proto",
+        "@com_google_protobuf//:timestamp_proto",
+        "@com_google_protobuf//:wrappers_proto",
     ],
-    plugin_name = 'scala-akka',
-    plugin_exec = '//scala-protoc-plugins/scala-akka:protoc-gen-scala-akka',
 )
 
 da_scala_library(
     name = "ledger-api-akka",
     srcs = [":ledger-api-akka-srcs"],
-    deps = [
-        "//ledger-api/grpc-definitions:ledger-api-scalapb",
-        "//ledger-api/rs-grpc-akka:rs-grpc-akka",
-        "//ledger-api/rs-grpc-bridge:rs-grpc-bridge",
-        '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-        '//3rdparty/jvm/io/grpc:grpc_stub',
-    ],
-    visibility = [
-        '//visibility:public',
-    ],
     tags = ["maven_coordinates=com.digitalasset.ledger-api:ledger-api-akka:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
+    deps = [
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//3rdparty/jvm/io/grpc:grpc_stub",
+        "//ledger-api/grpc-definitions:ledger-api-scalapb",
+        "//ledger-api/rs-grpc-akka",
+        "//ledger-api/rs-grpc-bridge",
+    ],
 )
diff --git a/ledger/ledger-api-client/BUILD.bazel b/ledger/ledger-api-client/BUILD.bazel
index 1652b3a740..102f68f6bb 100644
--- a/ledger/ledger-api-client/BUILD.bazel
+++ b/ledger/ledger-api-client/BUILD.bazel
@@ -2,40 +2,40 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_test_suite',
-  'da_scala_library'
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
 
 da_scala_library(
-  name = 'ledger-api-client',
-  srcs = glob(['src/main/scala/**/*.scala']),
-  deps = [
-    '//ledger-api/rs-grpc-bridge',
-    '//ledger-api/rs-grpc-akka',
-    '//language-support/scala/bindings',
-    '//3rdparty/jvm/org/slf4j:slf4j_api',
-    '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-    "//3rdparty/jvm/io/grpc:grpc_netty",
-    "//3rdparty/jvm/io/netty:netty_handler",
-	],
-  visibility = [
-		'//visibility:public',
-  ],
-  tags = ["maven_coordinates=com.digitalasset.ledger:ledger-api-client:__VERSION__"],
+    name = "ledger-api-client",
+    srcs = glob(["src/main/scala/**/*.scala"]),
+    tags = ["maven_coordinates=com.digitalasset.ledger:ledger-api-client:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
+    deps = [
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//3rdparty/jvm/io/grpc:grpc_netty",
+        "//3rdparty/jvm/io/netty:netty_handler",
+        "//3rdparty/jvm/org/slf4j:slf4j_api",
+        "//language-support/scala/bindings",
+        "//ledger-api/rs-grpc-akka",
+        "//ledger-api/rs-grpc-bridge",
+    ],
 )
 
 da_scala_test_suite(
-    name = 'ledger-api-client-tests',
-    srcs = glob(['src/test/suite/**/*.scala']),
+    name = "ledger-api-client-tests",
+    srcs = glob(["src/test/suite/**/*.scala"]),
     deps = [
-        ':ledger-api-client',
-        '//ledger-api/testing-utils',
-        '//ledger-api/rs-grpc-bridge',
-        '//ledger-api/rs-grpc-akka',
-        '//language-support/scala/bindings',
-        '//3rdparty/jvm/org/scalatest:scalatest',
-        '//3rdparty/jvm/org/awaitility:awaitility',
-        '//3rdparty/jvm/com/typesafe/akka:akka_stream_testkit',
-    ]
+        ":ledger-api-client",
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream_testkit",
+        "//3rdparty/jvm/org/awaitility",
+        "//3rdparty/jvm/org/scalatest",
+        "//language-support/scala/bindings",
+        "//ledger-api/rs-grpc-akka",
+        "//ledger-api/rs-grpc-bridge",
+        "//ledger-api/testing-utils",
+    ],
 )
diff --git a/ledger/ledger-api-common/BUILD.bazel b/ledger/ledger-api-common/BUILD.bazel
index c17a4c76f6..21c215d45f 100644
--- a/ledger/ledger-api-common/BUILD.bazel
+++ b/ledger/ledger-api-common/BUILD.bazel
@@ -2,81 +2,81 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_test_suite',
-  'da_scala_library'
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
 
 da_scala_library(
-  name = 'ledger-api-common',
-  srcs = glob(['src/main/scala/**/*.scala']),
-  deps = [
-    '//daml-lf/engine',
-    '//daml-lf/interpreter',
-    '//daml-lf/data',
-    '//daml-lf/transaction',
-    '//daml-lf/lfpackage',
-    '//daml-lf/archive:daml_lf_java_proto',
-    '//daml-lf/archive:daml_lf_archive_scala',
-    '//ledger-api/rs-grpc-bridge',
-    '//ledger-api/rs-grpc-akka',
-    '//ledger/ledger-api-scala-logging',
-    '//ledger/ledger-api-akka',
-    '//language-support/scala/bindings',
-    '//ledger/ledger-api-domain:ledger-api-domain',
-    '//ledger/ledger-api-client:ledger-api-client',
-    '//ledger/backend-api:backend-api',
-    '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-    '//3rdparty/jvm/com/google/guava:guava',
-    '//3rdparty/jvm/com/typesafe/scala_logging:scala_logging',
-    '//3rdparty/jvm/org/slf4j:slf4j_api',
-    '//3rdparty/jvm/io/grpc:grpc_services',
-    '//3rdparty/jvm/io/zipkin/brave:brave',
-    '//3rdparty/jvm/com/github/blemale:scaffeine',
-    '//3rdparty/jvm/org/scalaz:scalaz_core',
-    "//3rdparty/jvm/com/github/ghik:silencer_lib",
-  ],
-  plugins = [
-    '//external:jar/org/spire_math/kind_projector_2_12',
-    "//external:jar/com/github/ghik/silencer_plugin_2_12",
-  ],
-  visibility = [
-    '//visibility:public',
-  ],
-  tags = ["maven_coordinates=com.digitalasset.ledger:ledger-api-common:__VERSION__"],
+    name = "ledger-api-common",
+    srcs = glob(["src/main/scala/**/*.scala"]),
+    plugins = [
+        "//external:jar/org/spire_math/kind_projector_2_12",
+        "//external:jar/com/github/ghik/silencer_plugin_2_12",
+    ],
+    tags = ["maven_coordinates=com.digitalasset.ledger:ledger-api-common:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
+    deps = [
+        "//3rdparty/jvm/com/github/blemale:scaffeine",
+        "//3rdparty/jvm/com/github/ghik:silencer_lib",
+        "//3rdparty/jvm/com/google/guava",
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//3rdparty/jvm/com/typesafe/scala_logging",
+        "//3rdparty/jvm/io/grpc:grpc_services",
+        "//3rdparty/jvm/io/zipkin/brave",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//3rdparty/jvm/org/slf4j:slf4j_api",
+        "//daml-lf/archive:daml_lf_archive_scala",
+        "//daml-lf/archive:daml_lf_java_proto",
+        "//daml-lf/data",
+        "//daml-lf/engine",
+        "//daml-lf/interpreter",
+        "//daml-lf/lfpackage",
+        "//daml-lf/transaction",
+        "//language-support/scala/bindings",
+        "//ledger-api/rs-grpc-akka",
+        "//ledger-api/rs-grpc-bridge",
+        "//ledger/backend-api",
+        "//ledger/ledger-api-akka",
+        "//ledger/ledger-api-client",
+        "//ledger/ledger-api-domain",
+        "//ledger/ledger-api-scala-logging",
+    ],
 )
 
 testDependencies = [
-  ':ledger-api-common',
-  '//daml-lf/data',
-  '//daml-lf/transaction',
-  '//daml-lf/engine',
-  '//daml-lf/lfpackage',
-  '//language-support/scala/bindings',
-  '//ledger-api/testing-utils',
-  '//ledger-api/rs-grpc-bridge',
-  '//ledger-api/rs-grpc-akka',
-  '//ledger/ledger-api-domain:ledger-api-domain',
-  '//daml-lf/archive:daml_lf_archive_scala',
-  '//ledger/ledger-api-client:ledger-api-client',
-  '//3rdparty/jvm/org/scalatest:scalatest',
-  '//3rdparty/jvm/org/awaitility:awaitility',
-  '//3rdparty/jvm/com/typesafe/akka:akka_stream_testkit',
-  '//3rdparty/jvm/com/typesafe/scala_logging:scala_logging',
-  '//3rdparty/jvm/org/scalaz:scalaz_core',
-  '//3rdparty/jvm/io/zipkin/brave:brave',
+    ":ledger-api-common",
+    "//daml-lf/data",
+    "//daml-lf/transaction",
+    "//daml-lf/engine",
+    "//daml-lf/lfpackage",
+    "//language-support/scala/bindings",
+    "//ledger-api/testing-utils",
+    "//ledger-api/rs-grpc-bridge",
+    "//ledger-api/rs-grpc-akka",
+    "//ledger/ledger-api-domain:ledger-api-domain",
+    "//daml-lf/archive:daml_lf_archive_scala",
+    "//ledger/ledger-api-client:ledger-api-client",
+    "//3rdparty/jvm/org/scalatest:scalatest",
+    "//3rdparty/jvm/org/awaitility:awaitility",
+    "//3rdparty/jvm/com/typesafe/akka:akka_stream_testkit",
+    "//3rdparty/jvm/com/typesafe/scala_logging:scala_logging",
+    "//3rdparty/jvm/org/scalaz:scalaz_core",
+    "//3rdparty/jvm/io/zipkin/brave:brave",
 ]
 
 da_scala_library(
-  name = "ledger-api-common-scala-tests-lib",
-  srcs = glob(['src/test/lib/**/*.scala']),
-  deps = testDependencies,
+    name = "ledger-api-common-scala-tests-lib",
+    srcs = glob(["src/test/lib/**/*.scala"]),
+    deps = testDependencies,
 )
 
 da_scala_test_suite(
     name = "ledger-api-common-scala-tests",
-    srcs = glob(['src/test/suite/**/*.scala']),
+    srcs = glob(["src/test/suite/**/*.scala"]),
     deps = [
         ":ledger-api-common-scala-tests-lib",
-    ] + testDependencies
+    ] + testDependencies,
 )
diff --git a/ledger/ledger-api-domain/BUILD.bazel b/ledger/ledger-api-domain/BUILD.bazel
index b83b40f57a..b65f25ec8b 100644
--- a/ledger/ledger-api-domain/BUILD.bazel
+++ b/ledger/ledger-api-domain/BUILD.bazel
@@ -2,33 +2,39 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_library'
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
 )
 
 da_scala_library(
-  name = 'ledger-api-domain',
-  srcs = glob(['src/main/scala/**/*.scala']),
-  deps = [
-        '//daml-lf/data',
-		'//3rdparty/jvm/org/scalaz:scalaz_core',		
-		'//3rdparty/jvm/io/zipkin/brave:brave',
-	],
-  visibility = [
-		'//visibility:public',
-  ],
-  tags = ["maven_coordinates=com.digitalasset.ledger:ledger-api-domain:__VERSION__"],
-)
-
-da_scala_library(
-  name = "ledger-api-domain-tests-lib",
-  srcs = glob(['src/test/**/*.scala'], exclude = ['src/test/**/*Spec.scala', 'src/test/**/*Test.scala']),
-  deps = [
-    ':ledger-api-domain',
-    '//daml-lf/data',
-    '//3rdparty/jvm/org/scalaz:scalaz_core'
+    name = "ledger-api-domain",
+    srcs = glob(["src/main/scala/**/*.scala"]),
+    tags = ["maven_coordinates=com.digitalasset.ledger:ledger-api-domain:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
+    deps = [
+        "//3rdparty/jvm/io/zipkin/brave",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//daml-lf/data",
+    ],
+)
+
+da_scala_library(
+    name = "ledger-api-domain-tests-lib",
+    srcs = glob(
+        ["src/test/**/*.scala"],
+        exclude = [
+            "src/test/**/*Spec.scala",
+            "src/test/**/*Test.scala",
+        ],
+    ),
+    visibility = [
+        "//visibility:public",
+    ],
+    deps = [
+        ":ledger-api-domain",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//daml-lf/data",
     ],
-  visibility = [
-		'//visibility:public',
-  ]
 )
diff --git a/ledger/ledger-api-integration-tests/BUILD.bazel b/ledger/ledger-api-integration-tests/BUILD.bazel
index ba4fb14f84..3ce59ca61a 100644
--- a/ledger/ledger-api-integration-tests/BUILD.bazel
+++ b/ledger/ledger-api-integration-tests/BUILD.bazel
@@ -2,71 +2,71 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  "//rules_daml:daml.bzl",
-  "daml_compile"
+    "//rules_daml:daml.bzl",
+    "daml_compile",
 )
-
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_test_suite',
-  'da_scala_library',
-  'da_scala_binary'
+    "//bazel_tools:scala.bzl",
+    "da_scala_binary",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
 
 dependencies = [
-  '//daml-lf/scenario-interpreter',
-  '//daml-lf/transaction',
-  '//daml-lf/engine',
-  '//daml-lf/data',
-  '//daml-lf/lfpackage',
-  '//daml-lf/archive:daml_lf_java_proto',
-  '//daml-lf/archive:daml_lf_archive_scala',
-  '//daml-lf/interpreter',
-  '//ledger-api/testing-utils',
-  '//ledger-api/rs-grpc-bridge',
-  '//ledger-api/rs-grpc-akka',
-  '//ledger/ledger-api-scala-logging',
-  '//language-support/scala/bindings',
-  '//ledger/ledger-api-domain:ledger-api-domain',
-  '//ledger/ledger-api-common:ledger-api-common',
-  '//ledger/ledger-api-client:ledger-api-client',
-  '//ledger/sandbox:sandbox',
-  '//ledger/sandbox:sandbox-scala-tests-lib',
-  '//3rdparty/jvm/com/google/guava:guava',
-  '//3rdparty/jvm/io/grpc:grpc_services',
-  '//3rdparty/jvm/com/typesafe/scala_logging:scala_logging',
-  '//3rdparty/jvm/org/slf4j:slf4j_api',
-  '//3rdparty/jvm/org/scalaz:scalaz_core',
-  '//3rdparty/jvm/org/scalaz:scalaz_concurrent',
-  '//3rdparty/jvm/io/netty:netty_codec_http2',
-  "//3rdparty/jvm/io/grpc:grpc_netty",
-  "//3rdparty/jvm/io/netty:netty_handler",
-  '//3rdparty/jvm/com/github/scopt:scopt',
-  '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-  '//3rdparty/jvm/io/grpc:grpc_core',
-  '//3rdparty/jvm/org/scalatest:scalatest'
- ]
+    "//daml-lf/scenario-interpreter",
+    "//daml-lf/transaction",
+    "//daml-lf/engine",
+    "//daml-lf/data",
+    "//daml-lf/lfpackage",
+    "//daml-lf/archive:daml_lf_java_proto",
+    "//daml-lf/archive:daml_lf_archive_scala",
+    "//daml-lf/interpreter",
+    "//ledger-api/testing-utils",
+    "//ledger-api/rs-grpc-bridge",
+    "//ledger-api/rs-grpc-akka",
+    "//ledger/ledger-api-scala-logging",
+    "//language-support/scala/bindings",
+    "//ledger/ledger-api-domain:ledger-api-domain",
+    "//ledger/ledger-api-common:ledger-api-common",
+    "//ledger/ledger-api-client:ledger-api-client",
+    "//ledger/sandbox:sandbox",
+    "//ledger/sandbox:sandbox-scala-tests-lib",
+    "//3rdparty/jvm/com/google/guava:guava",
+    "//3rdparty/jvm/io/grpc:grpc_services",
+    "//3rdparty/jvm/com/typesafe/scala_logging:scala_logging",
+    "//3rdparty/jvm/org/slf4j:slf4j_api",
+    "//3rdparty/jvm/org/scalaz:scalaz_core",
+    "//3rdparty/jvm/org/scalaz:scalaz_concurrent",
+    "//3rdparty/jvm/io/netty:netty_codec_http2",
+    "//3rdparty/jvm/io/grpc:grpc_netty",
+    "//3rdparty/jvm/io/netty:netty_handler",
+    "//3rdparty/jvm/com/github/scopt:scopt",
+    "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+    "//3rdparty/jvm/io/grpc:grpc_core",
+    "//3rdparty/jvm/org/scalatest:scalatest",
+]
 
 da_scala_library(
-  name = 'ledger-api-integration-tests-lib',
-  srcs = glob(['src/test/lib/**/*.scala']),
-  deps = dependencies + [
-    '//daml-lf/testing-tools'
-  ],
-  visibility = [
-    '//visibility:public',
-  ]
+    name = "ledger-api-integration-tests-lib",
+    srcs = glob(["src/test/lib/**/*.scala"]),
+    visibility = [
+        "//visibility:public",
+    ],
+    deps = dependencies + [
+        "//daml-lf/testing-tools",
+    ],
 )
 
 da_scala_test_suite(
-  name = "ledger-api-integration-tests",
-  srcs = glob(['src/test/itsuite/**/*.scala']),
-  data = [
-      '//daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf',
-      '//ledger/sandbox:Test.dalf'],
-  deps = [
-    ':ledger-api-integration-tests-lib'
-  ] + dependencies
+    name = "ledger-api-integration-tests",
+    srcs = glob(["src/test/itsuite/**/*.scala"]),
+    data = [
+        "//daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf",
+        "//ledger/sandbox:Test.dalf",
+    ],
+    deps = [
+        ":ledger-api-integration-tests-lib",
+    ] + dependencies,
 )
 
 # A standalone semantic test runner.
@@ -75,48 +75,47 @@ da_scala_test_suite(
 #
 # This is used to test new ledger backend implementations.
 da_scala_binary(
-  name = "semantic-test-runner",
-  srcs = [
-    'src/main/scala/com/digitalasset/platform/semantictest/StandaloneSemanticTestRunner.scala',
-  ],
-  main_class = 'com.digitalasset.platform.semantictest.StandaloneSemanticTestRunner',
-  deps = dependencies + [
-    ':ledger-api-integration-tests-lib',
-    '//daml-lf/testing-tools'
-  ],
-  tags = [
-      "maven_coordinates=com.digitalasset.ledger:semantic-test-runner:__VERSION__",
-      # We release this as a fat jar so this tag ensures that the dependencies in the generated
-      # POM file are set correctly.
-      "fat_jar",
-  ],
+    name = "semantic-test-runner",
+    srcs = [
+        "src/main/scala/com/digitalasset/platform/semantictest/StandaloneSemanticTestRunner.scala",
+    ],
+    main_class = "com.digitalasset.platform.semantictest.StandaloneSemanticTestRunner",
+    tags = [
+        "maven_coordinates=com.digitalasset.ledger:semantic-test-runner:__VERSION__",
+        # We release this as a fat jar so this tag ensures that the dependencies in the generated
+        # POM file are set correctly.
+        "fat_jar",
+    ],
+    deps = dependencies + [
+        ":ledger-api-integration-tests-lib",
+        "//daml-lf/testing-tools",
+    ],
 )
 
 da_scala_test_suite(
-  name = "ledger-api-semantic-tests",
-  srcs = glob(['src/test/semanticsuite/**/*.scala']),
-  data = [
-    '//daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf',
-    ':SemanticTests.dalf'
-  ],
-  deps = [
-    ':ledger-api-integration-tests-lib',
-    '//daml-lf/testing-tools'
-  ] + dependencies
+    name = "ledger-api-semantic-tests",
+    srcs = glob(["src/test/semanticsuite/**/*.scala"]),
+    data = [
+        ":SemanticTests.dalf",
+        "//daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf",
+    ],
+    deps = [
+        ":ledger-api-integration-tests-lib",
+        "//daml-lf/testing-tools",
+    ] + dependencies,
 )
 
-
 TEST_FILES = [
-  "SemanticTests"
+    "SemanticTests",
 ]
 
 [
-  daml_compile(
-      name = name
-    , main_src = "src/test/semanticsuite/daml/%s.daml" % name
-    , visibility = ["//visibility:public"]
-    , target = "1.3"
-    , damlc = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated"
-  )
-  for name in TEST_FILES
+    daml_compile(
+        name = name,
+        damlc = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated",
+        main_src = "src/test/semanticsuite/daml/%s.daml" % name,
+        target = "1.3",
+        visibility = ["//visibility:public"],
+    )
+    for name in TEST_FILES
 ]
diff --git a/ledger/ledger-api-scala-logging/BUILD.bazel b/ledger/ledger-api-scala-logging/BUILD.bazel
index 60c80b14db..76b2f5d91a 100644
--- a/ledger/ledger-api-scala-logging/BUILD.bazel
+++ b/ledger/ledger-api-scala-logging/BUILD.bazel
@@ -6,37 +6,37 @@ load("//bazel_tools:proto.bzl", "proto_gen")
 
 proto_gen(
     name = "ledger-api-scala-logging-srcs",
-    srcs = ['//ledger-api/grpc-definitions:protos'],
+    srcs = ["//ledger-api/grpc-definitions:protos"],
+    plugin_exec = "//scala-protoc-plugins/scala-logging:protoc-gen-scala-logging",
+    plugin_name = "scala-logging",
     deps = [
-        '@com_google_protobuf//:empty_proto',
-        '@com_google_protobuf//:timestamp_proto',
-        '@com_google_protobuf//:duration_proto',
-        '@com_google_protobuf//:wrappers_proto',
-        '@com_google_protobuf//:any_proto',
-        '@com_google_protobuf//:descriptor_proto',
-        '@com_github_googleapis_googleapis//google/rpc:status_proto',
+        "@com_github_googleapis_googleapis//google/rpc:status_proto",
+        "@com_google_protobuf//:any_proto",
+        "@com_google_protobuf//:descriptor_proto",
+        "@com_google_protobuf//:duration_proto",
+        "@com_google_protobuf//:empty_proto",
+        "@com_google_protobuf//:timestamp_proto",
+        "@com_google_protobuf//:wrappers_proto",
     ],
-    plugin_name = 'scala-logging',
-    plugin_exec = '//scala-protoc-plugins/scala-logging:protoc-gen-scala-logging',
 )
 
 da_scala_library(
     name = "ledger-api-scala-logging",
-    srcs = [":ledger-api-scala-logging-srcs"] + glob(['src/main/scala/**/*.scala']),
-    deps = [
-        "//scala-protoc-plugins/scala-logging:scala-logging-lib",
-        "//ledger-api/grpc-definitions:ledger-api-scalapb",
-        '//3rdparty/jvm/org/slf4j:slf4j_api',
-        '//3rdparty/jvm/io/grpc:grpc_stub',
-    ],
-    visibility = [
-        '//visibility:public',
-    ],
+    srcs = [":ledger-api-scala-logging-srcs"] + glob(["src/main/scala/**/*.scala"]),
     tags = ["maven_coordinates=com.digitalasset.ledger-api:ledger-api-scala-logging:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
+    deps = [
+        "//3rdparty/jvm/io/grpc:grpc_stub",
+        "//3rdparty/jvm/org/slf4j:slf4j_api",
+        "//ledger-api/grpc-definitions:ledger-api-scalapb",
+        "//scala-protoc-plugins/scala-logging:scala-logging-lib",
+    ],
 )
 
 testDependencies = [
-    '//3rdparty/jvm/io/grpc:grpc_stub',
+    "//3rdparty/jvm/io/grpc:grpc_stub",
     "//ledger-api/grpc-definitions:ledger-api-scalapb",
     "//scala-protoc-plugins/scala-logging:scala-logging-lib",
     ":ledger-api-scala-logging",
@@ -46,13 +46,16 @@ testDependencies = [
 
 da_scala_library(
     name = "ledger-api-scala-logging-test-lib",
-    srcs = glob(['src/test/scala/**/*.scala'], exclude = ['src/test/scala/**/*Test.scala']),
+    srcs = glob(
+        ["src/test/scala/**/*.scala"],
+        exclude = ["src/test/scala/**/*Test.scala"],
+    ),
+    resources = ["src/test/resources/logback-test.xml"],
     deps = testDependencies,
-    resources = ["src/test/resources/logback-test.xml"]
 )
 
 da_scala_test_suite(
     name = "ledger-api-scala-logging-test",
-    srcs = glob(['src/test/scala/**/*Test.scala']),
-    deps = [':ledger-api-scala-logging-test-lib'] + testDependencies
+    srcs = glob(["src/test/scala/**/*Test.scala"]),
+    deps = [":ledger-api-scala-logging-test-lib"] + testDependencies,
 )
diff --git a/ledger/ledger-api-server-example/BUILD.bazel b/ledger/ledger-api-server-example/BUILD.bazel
index 1930f271f6..4aa8d353db 100644
--- a/ledger/ledger-api-server-example/BUILD.bazel
+++ b/ledger/ledger-api-server-example/BUILD.bazel
@@ -14,12 +14,12 @@ da_scala_binary(
     scalacopts = [],
     deps = [
         "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//3rdparty/jvm/io/grpc:grpc_netty",
+        "//3rdparty/jvm/io/netty:netty_handler",
         "//3rdparty/jvm/org/reactivestreams:reactive_streams",
         "//3rdparty/jvm/org/scalaz:scalaz_concurrent",
         "//3rdparty/jvm/org/scalaz:scalaz_core",
         "//3rdparty/jvm/org/slf4j:slf4j_api",
-        '//3rdparty/jvm/io/netty:netty_handler',
-        '//3rdparty/jvm/io/grpc:grpc_netty',
         "//daml-lf/archive:daml_lf_archive_scala",
         "//daml-lf/archive:daml_lf_java_proto",
         "//daml-lf/data",
@@ -29,15 +29,15 @@ da_scala_binary(
         "//daml-lf/transaction",
         "//daml-lf/transaction/src/main/protobuf:transaction_java_proto",
         "//daml-lf/transaction/src/main/protobuf:value_java_proto",
+        "//language-support/scala/bindings",
         "//ledger-api/rs-grpc-akka",
         "//ledger-api/rs-grpc-bridge",
-        "//ledger/ledger-api-akka",
-        "//language-support/scala/bindings",
-        "//ledger/ledger-api-scala-logging",
         "//ledger/backend-api",
+        "//ledger/ledger-api-akka",
         "//ledger/ledger-api-client",
         "//ledger/ledger-api-common",
         "//ledger/ledger-api-domain",
+        "//ledger/ledger-api-scala-logging",
         "//ledger/sandbox",
     ],
 )
diff --git a/ledger/participant-state-index/BUILD.bazel b/ledger/participant-state-index/BUILD.bazel
index 35bbfae5cd..6ff9836994 100644
--- a/ledger/participant-state-index/BUILD.bazel
+++ b/ledger/participant-state-index/BUILD.bazel
@@ -2,28 +2,25 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_test_suite',
-  'da_scala_library'
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
 
 da_scala_library(
-  name = 'participant-state-index',
-  srcs = glob(['src/main/scala/**/*.scala']),
-  resources = glob(['src/main/resources/**/*']),
-  deps = [
-    '//daml-lf/transaction',
-    '//daml-lf/data',
-    '//daml-lf/archive:daml_lf_java_proto',
-
-    '//ledger/participant-state',
-    '//ledger/ledger-api-domain',
-
-    '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-  ],
-  runtime_deps = [],
-  visibility = [
-    '//visibility:public',
-  ],
+    name = "participant-state-index",
+    srcs = glob(["src/main/scala/**/*.scala"]),
+    resources = glob(["src/main/resources/**/*"]),
+    visibility = [
+        "//visibility:public",
+    ],
+    runtime_deps = [],
+    deps = [
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//daml-lf/archive:daml_lf_java_proto",
+        "//daml-lf/data",
+        "//daml-lf/transaction",
+        "//ledger/ledger-api-domain",
+        "//ledger/participant-state",
+    ],
 )
-
diff --git a/ledger/participant-state-index/reference/BUILD.bazel b/ledger/participant-state-index/reference/BUILD.bazel
index c13d5e333e..89706f84a4 100644
--- a/ledger/participant-state-index/reference/BUILD.bazel
+++ b/ledger/participant-state-index/reference/BUILD.bazel
@@ -2,38 +2,34 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_test_suite',
-  'da_scala_library'
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
 
 da_scala_library(
-  name = 'reference',
-  srcs = glob(['src/main/scala/**/*.scala']),
-  resources = glob(['src/main/resources/**/*']),
-  deps = [
-    '//ledger/participant-state',
-    '//ledger/participant-state-index',
-
-    '//ledger/ledger-api-common',
-    '//ledger/ledger-api-domain',
-
-    '//daml-lf/transaction',
-    '//daml-lf/data',
-    '//daml-lf/lfpackage',
-    '//daml-lf/archive:daml_lf_java_proto',
-    '//daml-lf/archive:daml_lf_archive_scala',
-    '//daml-lf/engine',
-    '//daml-lf/interpreter',
-
-    '//3rdparty/jvm/org/slf4j:slf4j_api',
-    '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-    '//3rdparty/jvm/com/google/protobuf:protobuf_java',
-    '//3rdparty/jvm/org/scalaz:scalaz_core'
-  ],
-  runtime_deps = [],
-  visibility = [
-    '//visibility:public',
-  ],
+    name = "reference",
+    srcs = glob(["src/main/scala/**/*.scala"]),
+    resources = glob(["src/main/resources/**/*"]),
+    visibility = [
+        "//visibility:public",
+    ],
+    runtime_deps = [],
+    deps = [
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//3rdparty/jvm/org/slf4j:slf4j_api",
+        "//daml-lf/archive:daml_lf_archive_scala",
+        "//daml-lf/archive:daml_lf_java_proto",
+        "//daml-lf/data",
+        "//daml-lf/engine",
+        "//daml-lf/interpreter",
+        "//daml-lf/lfpackage",
+        "//daml-lf/transaction",
+        "//ledger/ledger-api-common",
+        "//ledger/ledger-api-domain",
+        "//ledger/participant-state",
+        "//ledger/participant-state-index",
+    ],
 )
-
diff --git a/ledger/participant-state/BUILD.bazel b/ledger/participant-state/BUILD.bazel
index 3cebe3535d..88f070b60c 100644
--- a/ledger/participant-state/BUILD.bazel
+++ b/ledger/participant-state/BUILD.bazel
@@ -2,24 +2,23 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_test_suite',
-  'da_scala_library'
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
 
 da_scala_library(
-  name = 'participant-state',
-  srcs = glob(['src/main/scala/**/*.scala']),
-  resources = glob(['src/main/resources/**/*']),
-  deps = [
-    '//daml-lf/transaction',
-    '//daml-lf/data',
-    '//daml-lf/archive:daml_lf_java_proto',
-    '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-  ],
-  runtime_deps = [],
-  visibility = [
-    '//visibility:public',
-  ],
+    name = "participant-state",
+    srcs = glob(["src/main/scala/**/*.scala"]),
+    resources = glob(["src/main/resources/**/*"]),
+    visibility = [
+        "//visibility:public",
+    ],
+    runtime_deps = [],
+    deps = [
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//daml-lf/archive:daml_lf_java_proto",
+        "//daml-lf/data",
+        "//daml-lf/transaction",
+    ],
 )
-
diff --git a/ledger/participant-state/reference/BUILD.bazel b/ledger/participant-state/reference/BUILD.bazel
index 313196f269..c02fc56537 100644
--- a/ledger/participant-state/reference/BUILD.bazel
+++ b/ledger/participant-state/reference/BUILD.bazel
@@ -2,41 +2,38 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_test_suite',
-  'da_scala_library'
+    "//bazel_tools:scala.bzl",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
 
 da_scala_library(
-  name = 'reference',
-  srcs = glob(['src/main/scala/**/*.scala']),
-  resources = glob(['src/main/resources/**/*']),
-  deps = [
-    '//daml-lf/archive:daml_lf_archive_scala',
-    '//daml-lf/archive:daml_lf_java_proto',
-    '//daml-lf/data',
-    '//daml-lf/engine',
-    '//daml-lf/interpreter',
-    '//daml-lf/lfpackage',
-    '//daml-lf/transaction',
-    '//daml-lf/transaction/src/main/protobuf:value_java_proto',
-    '//daml-lf/transaction/src/main/protobuf:transaction_java_proto',
-    '//daml-lf/transaction/src/main/protobuf:blindinginfo_java_proto',
-
-    '//ledger/participant-state',
-    '//ledger/ledger-api-domain',
-    '//ledger/ledger-api-common',
-    '//ledger/ledger-api-client',
-    '//language-support/scala/bindings',
-
-    '//3rdparty/jvm/org/scalaz:scalaz_core',
-    '//3rdparty/jvm/org/slf4j:slf4j_api',
-    '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-    '//3rdparty/jvm/com/google/protobuf:protobuf_java',
-  ],
-  runtime_deps = [],
-  visibility = [
-    '//visibility:public',
-  ],
+    name = "reference",
+    srcs = glob(["src/main/scala/**/*.scala"]),
+    resources = glob(["src/main/resources/**/*"]),
+    visibility = [
+        "//visibility:public",
+    ],
+    runtime_deps = [],
+    deps = [
+        "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+        "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+        "//3rdparty/jvm/org/scalaz:scalaz_core",
+        "//3rdparty/jvm/org/slf4j:slf4j_api",
+        "//daml-lf/archive:daml_lf_archive_scala",
+        "//daml-lf/archive:daml_lf_java_proto",
+        "//daml-lf/data",
+        "//daml-lf/engine",
+        "//daml-lf/interpreter",
+        "//daml-lf/lfpackage",
+        "//daml-lf/transaction",
+        "//daml-lf/transaction/src/main/protobuf:blindinginfo_java_proto",
+        "//daml-lf/transaction/src/main/protobuf:transaction_java_proto",
+        "//daml-lf/transaction/src/main/protobuf:value_java_proto",
+        "//language-support/scala/bindings",
+        "//ledger/ledger-api-client",
+        "//ledger/ledger-api-common",
+        "//ledger/ledger-api-domain",
+        "//ledger/participant-state",
+    ],
 )
-
diff --git a/ledger/sandbox-perf/BUILD.bazel b/ledger/sandbox-perf/BUILD.bazel
index 875e7b352d..59cba88105 100644
--- a/ledger/sandbox-perf/BUILD.bazel
+++ b/ledger/sandbox-perf/BUILD.bazel
@@ -2,62 +2,65 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_benchmark_jmh',
-  'da_scala_library'
+    "//bazel_tools:scala.bzl",
+    "da_scala_benchmark_jmh",
+    "da_scala_library",
 )
-
 load(
-  "//rules_daml:daml.bzl",
-  "daml_compile"
+    "//rules_daml:daml.bzl",
+    "daml_compile",
 )
 
 dependencies = [
-  '//ledger-api/testing-utils',
-  '//ledger-api/rs-grpc-bridge',
-  '//ledger-api/rs-grpc-akka',
-  '//language-support/scala/bindings',
-  '//daml-lf/scenario-interpreter',
-  '//daml-lf/transaction',
-  '//daml-lf/engine',
-  '//daml-lf/data',
-  '//daml-lf/lfpackage',
-  '//daml-lf/archive:daml_lf_java_proto',
-  '//daml-lf/archive:daml_lf_archive_scala',
-  '//daml-lf/interpreter',
-  '//ledger/ledger-api-integration-tests:ledger-api-integration-tests-lib',
-  '//ledger/sandbox',
-  '//ledger/sandbox:sandbox-scala-tests-lib',
-  '//ledger/ledger-api-common',
-  '//ledger/ledger-api-client',
-  '//3rdparty/jvm/com/google/protobuf:protobuf_java',
-  '//3rdparty/jvm/org/scalaz:scalaz_core',
-  '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-  '//3rdparty/jvm/com/typesafe/akka:akka_actor'
+    "//ledger-api/testing-utils",
+    "//ledger-api/rs-grpc-bridge",
+    "//ledger-api/rs-grpc-akka",
+    "//language-support/scala/bindings",
+    "//daml-lf/scenario-interpreter",
+    "//daml-lf/transaction",
+    "//daml-lf/engine",
+    "//daml-lf/data",
+    "//daml-lf/lfpackage",
+    "//daml-lf/archive:daml_lf_java_proto",
+    "//daml-lf/archive:daml_lf_archive_scala",
+    "//daml-lf/interpreter",
+    "//ledger/ledger-api-integration-tests:ledger-api-integration-tests-lib",
+    "//ledger/sandbox",
+    "//ledger/sandbox:sandbox-scala-tests-lib",
+    "//ledger/ledger-api-common",
+    "//ledger/ledger-api-client",
+    "//3rdparty/jvm/com/google/protobuf:protobuf_java",
+    "//3rdparty/jvm/org/scalaz:scalaz_core",
+    "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+    "//3rdparty/jvm/com/typesafe/akka:akka_actor",
 ]
 
 da_scala_library(
-  name = 'sandbox-perf-lib',
-  srcs = glob(['src/perf/lib/**/*.scala']),
-  deps = [
-    '//external:io_bazel_rules_scala/dependency/jmh/jmh_core'
-  ] + dependencies,
-  visibility = ['//visibility:public']
+    name = "sandbox-perf-lib",
+    srcs = glob(["src/perf/lib/**/*.scala"]),
+    visibility = ["//visibility:public"],
+    deps = [
+        "//external:io_bazel_rules_scala/dependency/jmh/jmh_core",
+    ] + dependencies,
 )
 
 daml_compile(
-  name = "LargeTransaction", 
-  main_src = "src/perf/resources/damls/LargeTransaction.daml",
-  target = "1.3",
-  visibility = ['//visibility:public']
+    name = "LargeTransaction",
+    main_src = "src/perf/resources/damls/LargeTransaction.daml",
+    target = "1.3",
+    visibility = ["//visibility:public"],
 )
 
 da_scala_benchmark_jmh(
-  name = 'sandbox-perf',
-  srcs = glob(['src/perf/benches/**/*.scala']),
-  data = ['//daml-foundations/daml-ghc/package-database:daml-prim-1.3.dalf', '//ledger/sandbox:Test.dalf', '//ledger/sandbox-perf:LargeTransaction.dalf'],
-  deps = [
-    ':sandbox-perf-lib'
-  ] + dependencies,
-  visibility = ['//visibility:public']
+    name = "sandbox-perf",
+    srcs = glob(["src/perf/benches/**/*.scala"]),
+    data = [
+        "//daml-foundations/daml-ghc/package-database:daml-prim-1.3.dalf",
+        "//ledger/sandbox:Test.dalf",
+        "//ledger/sandbox-perf:LargeTransaction.dalf",
+    ],
+    visibility = ["//visibility:public"],
+    deps = [
+        ":sandbox-perf-lib",
+    ] + dependencies,
 )
diff --git a/ledger/sandbox/BUILD.bazel b/ledger/sandbox/BUILD.bazel
index 4d854ee21f..4c1e333569 100644
--- a/ledger/sandbox/BUILD.bazel
+++ b/ledger/sandbox/BUILD.bazel
@@ -2,90 +2,90 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_test_suite',
-  'da_scala_library',
-  'da_scala_binary',
+    "//bazel_tools:scala.bzl",
+    "da_scala_binary",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
-
 load(
-  "//rules_daml:daml.bzl",
-  "daml_compile"
+    "//rules_daml:daml.bzl",
+    "daml_compile",
 )
-
 load("//bazel_tools:pom_file.bzl", "pom_file")
-
 load("@os_info//:os_info.bzl", "is_darwin")
 
 compileDependencies = [
-  # this has to come first other as somehow a different instance of grpc-core.jar
-  '//3rdparty/jvm/io/grpc:grpc_services',
-  '//daml-lf/scenario-interpreter',
-  '//daml-lf/transaction',
-  '//daml-lf/engine',
-  '//daml-lf/data',
-  '//daml-lf/lfpackage',
-  '//daml-lf/archive:daml_lf_java_proto',
-  '//daml-lf/archive:daml_lf_archive_scala',
-  '//daml-lf/interpreter',
-  '//daml-lf/transaction/src/main/protobuf:value_java_proto',
-  '//daml-lf/transaction/src/main/protobuf:transaction_java_proto',
-  '//ledger-api/rs-grpc-bridge',
-  '//ledger-api/rs-grpc-akka',
-  '//ledger/ledger-api-akka',
-  '//ledger/ledger-api-scala-logging',
-  '//language-support/scala/bindings',
-  '//ledger/ledger-api-domain:ledger-api-domain',
-  '//ledger/ledger-api-common:ledger-api-common',
-  '//ledger/ledger-api-client:ledger-api-client',
-  '//ledger/backend-api',
-  '//3rdparty/jvm/com/typesafe/scala_logging:scala_logging',
-  '//3rdparty/jvm/org/slf4j:slf4j_api',
-  '//3rdparty/jvm/org/scalaz:scalaz_core',
-  '//3rdparty/jvm/org/scalaz:scalaz_concurrent',
-  '//3rdparty/jvm/io/netty:netty_codec_http2',
-  '//3rdparty/jvm/io/netty:netty_tcnative_boringssl_static',
-  "//3rdparty/jvm/io/grpc:grpc_netty",
-  "//3rdparty/jvm/io/netty:netty_handler",
-  '//3rdparty/jvm/com/github/scopt:scopt',
-  '//3rdparty/jvm/com/typesafe/akka:akka_stream',
-  '//3rdparty/jvm/com/google/guava:guava',
-  '//3rdparty/jvm/org/postgresql:postgresql',
-  '//3rdparty/jvm/com/zaxxer:HikariCP',
-  '//3rdparty/jvm/org/flywaydb:flyway_core',
-  '//3rdparty/jvm/com/typesafe/play:anorm',
-  '//3rdparty/jvm/com/typesafe/play:anorm_akka'
+    # this has to come first other as somehow a different instance of grpc-core.jar
+    "//3rdparty/jvm/io/grpc:grpc_services",
+    "//daml-lf/scenario-interpreter",
+    "//daml-lf/transaction",
+    "//daml-lf/engine",
+    "//daml-lf/data",
+    "//daml-lf/lfpackage",
+    "//daml-lf/archive:daml_lf_java_proto",
+    "//daml-lf/archive:daml_lf_archive_scala",
+    "//daml-lf/interpreter",
+    "//daml-lf/transaction/src/main/protobuf:value_java_proto",
+    "//daml-lf/transaction/src/main/protobuf:transaction_java_proto",
+    "//ledger-api/rs-grpc-bridge",
+    "//ledger-api/rs-grpc-akka",
+    "//ledger/ledger-api-akka",
+    "//ledger/ledger-api-scala-logging",
+    "//language-support/scala/bindings",
+    "//ledger/ledger-api-domain:ledger-api-domain",
+    "//ledger/ledger-api-common:ledger-api-common",
+    "//ledger/ledger-api-client:ledger-api-client",
+    "//ledger/backend-api",
+    "//3rdparty/jvm/com/typesafe/scala_logging:scala_logging",
+    "//3rdparty/jvm/org/slf4j:slf4j_api",
+    "//3rdparty/jvm/org/scalaz:scalaz_core",
+    "//3rdparty/jvm/org/scalaz:scalaz_concurrent",
+    "//3rdparty/jvm/io/netty:netty_codec_http2",
+    "//3rdparty/jvm/io/netty:netty_tcnative_boringssl_static",
+    "//3rdparty/jvm/io/grpc:grpc_netty",
+    "//3rdparty/jvm/io/netty:netty_handler",
+    "//3rdparty/jvm/com/github/scopt:scopt",
+    "//3rdparty/jvm/com/typesafe/akka:akka_stream",
+    "//3rdparty/jvm/com/google/guava:guava",
+    "//3rdparty/jvm/org/postgresql:postgresql",
+    "//3rdparty/jvm/com/zaxxer:HikariCP",
+    "//3rdparty/jvm/org/flywaydb:flyway_core",
+    "//3rdparty/jvm/com/typesafe/play:anorm",
+    "//3rdparty/jvm/com/typesafe/play:anorm_akka",
 ]
 
 da_scala_library(
-  name = 'sandbox',
-  srcs = glob(['src/main/scala/**/*.scala']),
-  resources = glob(['src/main/resources/**/*']) + [
-    '//:COMPONENT-VERSION'
-  ],
-  deps = compileDependencies,
-  runtime_deps = [
-    '//3rdparty/jvm/ch/qos/logback:logback_core',
-    '//3rdparty/jvm/ch/qos/logback:logback_classic'
-  ],
-  visibility = [
-    '//visibility:public',
-  ],
-  tags = ["maven_coordinates=com.digitalasset.platform:sandbox:__VERSION__"],
+    name = "sandbox",
+    srcs = glob(["src/main/scala/**/*.scala"]),
+    resources = glob(["src/main/resources/**/*"]) + [
+        "//:COMPONENT-VERSION",
+    ],
+    tags = ["maven_coordinates=com.digitalasset.platform:sandbox:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
+    runtime_deps = [
+        "//3rdparty/jvm/ch/qos/logback:logback_classic",
+        "//3rdparty/jvm/ch/qos/logback:logback_core",
+    ],
+    deps = compileDependencies,
 )
 
 da_scala_binary(
-  name = "sandbox-binary",
-  main_class = 'com.digitalasset.platform.sandbox.SandboxMain',
-  deps = [
-    ":sandbox",
-  ],
-  visibility = ['//visibility:public'],
+    name = "sandbox-binary",
+    main_class = "com.digitalasset.platform.sandbox.SandboxMain",
+    visibility = ["//visibility:public"],
+    deps = [
+        ":sandbox",
+    ],
 )
 
 genrule(
     name = "sandbox-tarball",
-    srcs = [":sandbox-binary_deploy.jar", "//:component-version"],
+    srcs = [
+        ":sandbox-binary_deploy.jar",
+        "//:component-version",
+    ],
     outs = ["sandbox-tarball.tar.gz"],
     cmd = """
         VERSION=$$(cat $(location //:component-version))
@@ -93,7 +93,7 @@ genrule(
         cp -L $(location :sandbox-binary_deploy.jar) sandbox/sandbox-$$VERSION.jar
         tar zcf $@ sandbox
     """,
-    visibility = [ '//visibility:public']
+    visibility = ["//visibility:public"],
 )
 
 # The sole purpose of this rule is to get the sandbox.jar with version 0.0.0.
@@ -106,42 +106,45 @@ genrule(
         cp -L $(location :sandbox-binary_deploy.jar) sandbox/sandbox-0.0.0.jar
         tar zcf $@ sandbox
     """,
-    visibility = ['//visibility:public']
+    visibility = ["//visibility:public"],
 )
 
 daml_compile(
-  name = "Test",
-  main_src = "src/test/resources/damls/Test.daml",
-  target = "1.3",
-  damlc = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated",
-  visibility = ['//visibility:public'],
+    name = "Test",
+    damlc = "//daml-foundations/daml-tools/da-hs-damlc-app:da-hs-damlc-app-deprecated",
+    main_src = "src/test/resources/damls/Test.daml",
+    target = "1.3",
+    visibility = ["//visibility:public"],
 )
 
 #TODO: generate dynamic BuildInfo.scala
 
 testDependencies = [
-  ':sandbox',
-  '//ledger-api/testing-utils',
-  '//3rdparty/jvm/org/scalatest:scalatest',
-  '//3rdparty/jvm/org/scalacheck:scalacheck',
-  '//3rdparty/jvm/org/awaitility:awaitility',
-  '//3rdparty/jvm/commons_io:commons_io'
+    ":sandbox",
+    "//ledger-api/testing-utils",
+    "//3rdparty/jvm/org/scalatest:scalatest",
+    "//3rdparty/jvm/org/scalacheck:scalacheck",
+    "//3rdparty/jvm/org/awaitility:awaitility",
+    "//3rdparty/jvm/commons_io:commons_io",
 ] + compileDependencies
 
 da_scala_library(
-  name = "sandbox-scala-tests-lib",
-  srcs = glob(['src/test/lib/**/*.scala']),
-  deps = testDependencies,
-  visibility = ['//visibility:public']
+    name = "sandbox-scala-tests-lib",
+    srcs = glob(["src/test/lib/**/*.scala"]),
+    visibility = ["//visibility:public"],
+    deps = testDependencies,
 )
 
 da_scala_test_suite(
     name = "sandbox-scala-tests",
     srcs = glob(
-        ['src/test/suite/**/*.scala'],
+        ["src/test/suite/**/*.scala"],
     ),
-    resources = glob(['src/test/resources/**/*']),
-    data = ['//ledger/sandbox:Test.dalf', '//daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf'],
+    data = [
+        "//daml-foundations/daml-ghc/package-database/deprecated:daml-prim-1.3.dalf",
+        "//ledger/sandbox:Test.dalf",
+    ],
+    resources = glob(["src/test/resources/**/*"]),
     deps = [
         ":sandbox-scala-tests-lib",
     ] + testDependencies,
diff --git a/libs-haskell/bazel-runfiles/BUILD.bazel b/libs-haskell/bazel-runfiles/BUILD.bazel
index 88e07bc4ec..4a4c809fb2 100644
--- a/libs-haskell/bazel-runfiles/BUILD.bazel
+++ b/libs-haskell/bazel-runfiles/BUILD.bazel
@@ -4,15 +4,15 @@
 load("//bazel_tools:haskell.bzl", "da_haskell_library")
 
 da_haskell_library(
-  name = "bazel-runfiles",
-  srcs = glob(["src/DA/Bazel/Runfiles.hs"]),
-  src_strip_prefix = "src",
-  deps = [],
-  hazel_deps = [
-    "base",
-    "directory",
-    "filepath",
-    "transformers",
-  ],
-  visibility = ['//visibility:public'],
+    name = "bazel-runfiles",
+    srcs = glob(["src/DA/Bazel/Runfiles.hs"]),
+    hazel_deps = [
+        "base",
+        "directory",
+        "filepath",
+        "transformers",
+    ],
+    src_strip_prefix = "src",
+    visibility = ["//visibility:public"],
+    deps = [],
 )
diff --git a/libs-haskell/da-hs-base/BUILD.bazel b/libs-haskell/da-hs-base/BUILD.bazel
index d9bdf6e5be..8df3b8b729 100644
--- a/libs-haskell/da-hs-base/BUILD.bazel
+++ b/libs-haskell/da-hs-base/BUILD.bazel
@@ -5,11 +5,7 @@ load("//bazel_tools:haskell.bzl", "da_haskell_library", "da_haskell_test")
 
 da_haskell_library(
     name = "da-hs-base",
-    src_strip_prefix = "src",
     srcs = glob(["src/**/*.hs"]),
-    deps = [
-        "//daml-assistant:daml-project-config",
-    ],
     hazel_deps = [
         "aeson",
         "aeson-pretty",
@@ -49,24 +45,28 @@ da_haskell_library(
         "unordered-containers",
         "vector",
     ],
+    src_strip_prefix = "src",
     visibility = ["//visibility:public"],
+    deps = [
+        "//daml-assistant:daml-project-config",
+    ],
 )
 
 da_haskell_test(
     name = "da-hs-base-tests",
     srcs = glob(["tests/**/*.hs"]),
-    deps = [
-           ":da-hs-base",
-    ],
     hazel_deps = [
-         "aeson",
-         "managed",
-         "tasty",
-         "base",
-         "directory",
-         "tasty-hunit",
-         "text",
+        "aeson",
+        "managed",
+        "tasty",
+        "base",
+        "directory",
+        "tasty-hunit",
+        "text",
     ],
-    visibility = ["//visibility:public"],
     main_function = "DataLimit.main",
+    visibility = ["//visibility:public"],
+    deps = [
+        ":da-hs-base",
+    ],
 )
diff --git a/libs-haskell/da-hs-json-rpc/BUILD.bazel b/libs-haskell/da-hs-json-rpc/BUILD.bazel
index 3bfdecc451..06fa10f1b6 100644
--- a/libs-haskell/da-hs-json-rpc/BUILD.bazel
+++ b/libs-haskell/da-hs-json-rpc/BUILD.bazel
@@ -1,33 +1,33 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load ("//bazel_tools:haskell.bzl", "da_haskell_library")
+load("//bazel_tools:haskell.bzl", "da_haskell_library")
 
-da_haskell_library (
-  name = "da-hs-json-rpc"
-  , src_strip_prefix = "src"
-  , srcs = glob (["src/**/*.hs"])
-  , deps = [
-      "//libs-haskell/da-hs-base"
-  ]
-  , hazel_deps = [
-      "aeson",
-      "attoparsec",
-      "base",
-      "bytestring",
-      "conduit",
-      "containers",
-      "deepseq",
-      "hashable",
-      "lifted-async",
-      "mtl",
-      "QuickCheck",
-      "stm",
-      "stm-conduit",
-      "text",
-      "transformers",
-      "unordered-containers",
-      "vector",
-  ]
-  , visibility = ["//visibility:public"]
+da_haskell_library(
+    name = "da-hs-json-rpc",
+    srcs = glob(["src/**/*.hs"]),
+    hazel_deps = [
+        "aeson",
+        "attoparsec",
+        "base",
+        "bytestring",
+        "conduit",
+        "containers",
+        "deepseq",
+        "hashable",
+        "lifted-async",
+        "mtl",
+        "QuickCheck",
+        "stm",
+        "stm-conduit",
+        "text",
+        "transformers",
+        "unordered-containers",
+        "vector",
+    ],
+    src_strip_prefix = "src",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//libs-haskell/da-hs-base",
+    ],
 )
diff --git a/libs-haskell/da-hs-language-server/BUILD.bazel b/libs-haskell/da-hs-language-server/BUILD.bazel
index df1e4b779a..cc8ddf6f0c 100644
--- a/libs-haskell/da-hs-language-server/BUILD.bazel
+++ b/libs-haskell/da-hs-language-server/BUILD.bazel
@@ -1,31 +1,31 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load ("//bazel_tools:haskell.bzl", "da_haskell_library")
+load("//bazel_tools:haskell.bzl", "da_haskell_library")
 
-da_haskell_library (
-  name = "da-hs-language-server"
-  , src_strip_prefix = "src"
-  , srcs = glob (["src/**/*.hs"])
-  , deps = [
-      "//libs-haskell/da-hs-base"
-    , "//libs-haskell/da-hs-pretty"
-    , "//libs-haskell/da-hs-json-rpc"
-  ]
-  , hazel_deps = [
-      "aeson",
-      "attoparsec",
-      "base",
-      "bytestring",
-      "conduit",
-      "conduit-extra",
-      "containers",
-      "exceptions",
-      "mtl",
-      "scientific",
-      "stm",
-      "template-haskell",
-      "text",
-  ]
-  , visibility = ["//visibility:public"]
+da_haskell_library(
+    name = "da-hs-language-server",
+    srcs = glob(["src/**/*.hs"]),
+    hazel_deps = [
+        "aeson",
+        "attoparsec",
+        "base",
+        "bytestring",
+        "conduit",
+        "conduit-extra",
+        "containers",
+        "exceptions",
+        "mtl",
+        "scientific",
+        "stm",
+        "template-haskell",
+        "text",
+    ],
+    src_strip_prefix = "src",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//libs-haskell/da-hs-base",
+        "//libs-haskell/da-hs-json-rpc",
+        "//libs-haskell/da-hs-pretty",
+    ],
 )
diff --git a/libs-haskell/da-hs-pretty/BUILD.bazel b/libs-haskell/da-hs-pretty/BUILD.bazel
index 61d75430da..5e7163ade6 100644
--- a/libs-haskell/da-hs-pretty/BUILD.bazel
+++ b/libs-haskell/da-hs-pretty/BUILD.bazel
@@ -3,22 +3,22 @@
 
 load("//bazel_tools:haskell.bzl", "da_haskell_library")
 
-da_haskell_library (
-    name = "da-hs-pretty"
-  , src_strip_prefix = "src"
-  , srcs = glob (["src/**/*.hs"])
-  , deps = [
-      "//libs-haskell/da-hs-base"
-    , "//libs-haskell/prettyprinter-syntax"
-  ]
-  , hazel_deps = [
-      "ansi-terminal",
-      "base",
-      "base64-bytestring",
-      "blaze-html",
-      "bytestring",
-      "pretty",
-      "text",
-    ]
-  , visibility = ["//visibility:public"]
-  )
+da_haskell_library(
+    name = "da-hs-pretty",
+    srcs = glob(["src/**/*.hs"]),
+    hazel_deps = [
+        "ansi-terminal",
+        "base",
+        "base64-bytestring",
+        "blaze-html",
+        "bytestring",
+        "pretty",
+        "text",
+    ],
+    src_strip_prefix = "src",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//libs-haskell/da-hs-base",
+        "//libs-haskell/prettyprinter-syntax",
+    ],
+)
diff --git a/libs-haskell/prettyprinter-syntax/BUILD.bazel b/libs-haskell/prettyprinter-syntax/BUILD.bazel
index 1d8de647a0..d9f850348b 100644
--- a/libs-haskell/prettyprinter-syntax/BUILD.bazel
+++ b/libs-haskell/prettyprinter-syntax/BUILD.bazel
@@ -5,7 +5,6 @@ load("//bazel_tools:haskell.bzl", "da_haskell_library")
 
 da_haskell_library(
     name = "prettyprinter-syntax",
-    src_strip_prefix = "src",
     srcs = glob(["src/**/*.hs"]),
     hazel_deps = [
         "base",
@@ -13,5 +12,6 @@ da_haskell_library(
         "prettyprinter-ansi-terminal",
         "text",
     ],
+    src_strip_prefix = "src",
     visibility = ["//visibility:public"],
 )
diff --git a/navigator/BUILD.bazel b/navigator/BUILD.bazel
index c87ef890ab..9e78972b47 100644
--- a/navigator/BUILD.bazel
+++ b/navigator/BUILD.bazel
@@ -2,6 +2,6 @@
 # SPDX-License-Identifier: Apache-2.0
 
 alias(
-  name = "navigator-binary",
-  actual = "//navigator/backend:navigator-binary",
+    name = "navigator-binary",
+    actual = "//navigator/backend:navigator-binary",
 )
diff --git a/navigator/backend/BUILD.bazel b/navigator/backend/BUILD.bazel
index cfc10bb2dd..8a38d0d72c 100644
--- a/navigator/backend/BUILD.bazel
+++ b/navigator/backend/BUILD.bazel
@@ -2,18 +2,19 @@
 # SPDX-License-Identifier: Apache-2.0
 
 load(
-  '//bazel_tools:scala.bzl',
-  'da_scala_library',
-  'da_scala_binary',
-  'da_scala_test_suite',
+    "//bazel_tools:scala.bzl",
+    "da_scala_binary",
+    "da_scala_library",
+    "da_scala_test_suite",
 )
 
 common_scalacopts = [
-  '-Xelide-below', 'CONFIG',
+    "-Xelide-below",
+    "CONFIG",
 ]
 
 common_jvm_flags = [
-  '-Xmx2G',
+    "-Xmx2G",
 ]
 
 # All frontend resource files.
@@ -21,134 +22,143 @@ common_jvm_flags = [
 # a java_import, so that it is a valid target for the 'resources' property of
 # scala_binary.
 java_import(
-  name = "frontend-resources",
-  jars = [
-    "//navigator/frontend:frontend.jar",
-  ],
+    name = "frontend-resources",
+    jars = [
+        "//navigator/frontend:frontend.jar",
+    ],
 )
 
 # Version file, as a top level resources.
 java_library(
-  name = "version-resource",
-  resources = [
-    '//:component-version',
-  ],
+    name = "version-resource",
+    resources = [
+        "//:component-version",
+    ],
 )
 
 # Revision file, as a top level resources.
 java_library(
-  name = "revision-resource",
-  resources = [
-    '//:git-revision',
-  ],
+    name = "revision-resource",
+    resources = [
+        "//:git-revision",
+    ],
 )
 
 # Fake git revision, using SHA-1 of the empty string
 # Used in tests, to make sure we don't rerun tests on every commit.
 genrule(
-  name = "test-revision",
-  srcs = [],
-  outs = [".git-revision"],
-  cmd = "echo \"da39a3ee5e6b4b0d3255bfef95601890afd80709\" > \"$@\"",
+    name = "test-revision",
+    srcs = [],
+    outs = [".git-revision"],
+    cmd = "echo \"da39a3ee5e6b4b0d3255bfef95601890afd80709\" > \"$@\"",
 )
 
 # Fake git revision file, as a top level resource.
 # Used in tests, to make sure we don't rerun tests on every commit.
 java_library(
-  name = "test-revision-resource",
-  resources = [
-    ':test-revision',
-  ],
-  resource_strip_prefix = "navigator/backend"
+    name = "test-revision-resource",
+    resource_strip_prefix = "navigator/backend",
+    resources = [
+        ":test-revision",
+    ],
 )
 
 # Static backend resources.
 java_library(
-  name = "backend-resources",
-  resources = glob(["src/main/resources/**/*"]),
+    name = "backend-resources",
+    resources = glob(["src/main/resources/**/*"]),
 )
 
 compileDependencies = [
-  '//daml-lf/archive:daml_lf_archive_scala',
-  '//daml-lf/archive:daml_lf_java_proto',
-  '//daml-lf/data',
-  '//daml-lf/interface',
-  '//ledger-api/rs-grpc-bridge',
-  '//ledger-api/rs-grpc-akka',
-  '//language-support/scala/bindings',
-  '//ledger/ledger-api-client',
-  '//3rdparty/jvm/com/github/pureconfig:pureconfig',
-  '//3rdparty/jvm/com/github/scopt:scopt',
-  '//3rdparty/jvm/com/typesafe/akka:akka_http',
-  '//3rdparty/jvm/com/typesafe/akka:akka_http_spray_json',
-  '//3rdparty/jvm/com/typesafe/akka:akka_slf4j',
-  '//3rdparty/jvm/ch/qos/logback:logback_classic',
-  '//3rdparty/jvm/com/typesafe/scala_logging',
-  '//3rdparty/jvm/io/netty:netty_tcnative_boringssl_static',
-  '//3rdparty/jvm/io/netty:netty_handler',
-  '//3rdparty/jvm/io/grpc:grpc_netty',
-  '//3rdparty/jvm/org/sangria_graphql:sangria',
-  '//3rdparty/jvm/org/sangria_graphql:sangria_spray_json',
-  '//3rdparty/jvm/org/scalaz:scalaz_core',
-  '//3rdparty/jvm/org/jline:jline',
-  '//3rdparty/jvm/org/jline:jline_reader',
-  '//3rdparty/jvm/org/scala_lang/modules:scala_parser_combinators',
-  '//3rdparty/jvm/org/gnieh:diffson_spray_json',
-  '//3rdparty/jvm/org/tpolecat:doobie_core',
-  '//3rdparty/jvm/org/xerial:sqlite_jdbc',
+    "//daml-lf/archive:daml_lf_archive_scala",
+    "//daml-lf/archive:daml_lf_java_proto",
+    "//daml-lf/data",
+    "//daml-lf/interface",
+    "//ledger-api/rs-grpc-bridge",
+    "//ledger-api/rs-grpc-akka",
+    "//language-support/scala/bindings",
+    "//ledger/ledger-api-client",
+    "//3rdparty/jvm/com/github/pureconfig:pureconfig",
+    "//3rdparty/jvm/com/github/scopt:scopt",
+    "//3rdparty/jvm/com/typesafe/akka:akka_http",
+    "//3rdparty/jvm/com/typesafe/akka:akka_http_spray_json",
+    "//3rdparty/jvm/com/typesafe/akka:akka_slf4j",
+    "//3rdparty/jvm/ch/qos/logback:logback_classic",
+    "//3rdparty/jvm/com/typesafe/scala_logging",
+    "//3rdparty/jvm/io/netty:netty_tcnative_boringssl_static",
+    "//3rdparty/jvm/io/netty:netty_handler",
+    "//3rdparty/jvm/io/grpc:grpc_netty",
+    "//3rdparty/jvm/org/sangria_graphql:sangria",
+    "//3rdparty/jvm/org/sangria_graphql:sangria_spray_json",
+    "//3rdparty/jvm/org/scalaz:scalaz_core",
+    "//3rdparty/jvm/org/jline:jline",
+    "//3rdparty/jvm/org/jline:jline_reader",
+    "//3rdparty/jvm/org/scala_lang/modules:scala_parser_combinators",
+    "//3rdparty/jvm/org/gnieh:diffson_spray_json",
+    "//3rdparty/jvm/org/tpolecat:doobie_core",
+    "//3rdparty/jvm/org/xerial:sqlite_jdbc",
 ]
 
 testDependencies = [
-  ':navigator-library',
-  '//3rdparty/jvm/com/typesafe/akka:akka_http_testkit',
-  '//3rdparty/jvm/org/scalatest:scalatest',
-  '//3rdparty/jvm/org/slf4j:slf4j_simple',
+    ":navigator-library",
+    "//3rdparty/jvm/com/typesafe/akka:akka_http_testkit",
+    "//3rdparty/jvm/org/scalatest:scalatest",
+    "//3rdparty/jvm/org/slf4j:slf4j_simple",
 ] + compileDependencies
 
 da_scala_library(
-  name = 'navigator-library',
-  deps = compileDependencies,
-  srcs = glob([
-    'src/main/scala/com/digitalasset/navigator/**/*.scala'
-  ]),
+    name = "navigator-library",
+    srcs = glob([
+        "src/main/scala/com/digitalasset/navigator/**/*.scala",
+    ]),
+    deps = compileDependencies,
 )
 
 da_scala_library(
-  name = "navigator-tests-library",
-  srcs = glob(['src/test/**/*.scala'], exclude = ['src/test/**/*Spec.scala', 'src/test/**/*Test.scala']),
-  deps = testDependencies,
+    name = "navigator-tests-library",
+    srcs = glob(
+        ["src/test/**/*.scala"],
+        exclude = [
+            "src/test/**/*Spec.scala",
+            "src/test/**/*Test.scala",
+        ],
+    ),
+    deps = testDependencies,
 )
 
 da_scala_binary(
-  name = 'navigator-binary',
-  deps = [
-    ':navigator-library',
-    ':frontend-resources',
-    ':version-resource',
-    ':revision-resource',
-    ':backend-resources',
-  ],
-  main_class = 'com.digitalasset.navigator.NavigatorBackend',
-  visibility = [
-    '//visibility:public',
-  ],
-  tags = ["maven_coordinates=com.digitalasset:navigator:__VERSION__"],
+    name = "navigator-binary",
+    main_class = "com.digitalasset.navigator.NavigatorBackend",
+    tags = ["maven_coordinates=com.digitalasset:navigator:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
+    deps = [
+        ":backend-resources",
+        ":frontend-resources",
+        ":navigator-library",
+        ":revision-resource",
+        ":version-resource",
+    ],
 )
 
 # Static test resources.
 java_library(
-  name = "test-resources",
-  resources = glob(["src/test/resources/**/*"]),
+    name = "test-resources",
+    resources = glob(["src/test/resources/**/*"]),
 )
 
 da_scala_test_suite(
-  name = "navigator-scala-tests",
-  srcs = glob(['src/test/**/*Spec.scala', 'src/test/**/*Test.scala']),
-  deps = [
-      ":navigator-tests-library",
-      ":test-resources",
-      ':version-resource',
-      ":test-revision-resource",
-  ] + testDependencies,
-  size = "small"
+    name = "navigator-scala-tests",
+    size = "small",
+    srcs = glob([
+        "src/test/**/*Spec.scala",
+        "src/test/**/*Test.scala",
+    ]),
+    deps = [
+        ":navigator-tests-library",
+        ":test-resources",
+        ":version-resource",
+        ":test-revision-resource",
+    ] + testDependencies,
 )
diff --git a/navigator/frontend/BUILD.bazel b/navigator/frontend/BUILD.bazel
index 0e0aa7a603..e294f9b80d 100644
--- a/navigator/frontend/BUILD.bazel
+++ b/navigator/frontend/BUILD.bazel
@@ -4,8 +4,8 @@
 load("@build_bazel_rules_nodejs//:defs.bzl", "nodejs_binary")
 
 filegroup(
-  name = "src",
-  srcs = glob(["src/**"]),
+    name = "src",
+    srcs = glob(["src/**"]),
 )
 
 # TODO: Set up a target for generating GraphQL query definition files.
@@ -38,39 +38,34 @@ filegroup(
 # "@navigator_frontend_deps//webpack/bin:webpack" target, so we need to create
 # a custom node.js binary that has access to all plugins loaded by webpack at runtime.
 nodejs_binary(
-  name = "webpack",
-  entry_point = "webpack/bin/webpack.js",
-  node_modules = "@navigator_frontend_deps//:node_modules",
-  # The webpack build step requires almost all of the node_modules dependencies
-  # data = [
-  #  ...
-  # ],
+    name = "webpack",
+    entry_point = "webpack/bin/webpack.js",
+    node_modules = "@navigator_frontend_deps//:node_modules",
+    # The webpack build step requires almost all of the node_modules dependencies
+    # data = [
+    #  ...
+    # ],
 )
 
 # Builds the frontend single page application and bundles all output files
 # (HTML + JavaScript + CSS + images) in a .tgz or .jar archive.
 genrule(
-  name = "frontend",
-  outs = [
-    "frontend.tgz",
-    "frontend.jar",
-  ],
-  srcs = [
-    "webpack.config.js",
-    "declarations.d.ts",
-    "tsconfig.json",
-    "tslint.json",
-    "package.json",
-    ".modernizrrc",
-    ":src",
-    "@navigator_frontend_deps//:node_modules",
-  ],
-  tools = [
-    "@bazel_tools//tools/jdk:current_java_runtime",
-    ":webpack",
-  ],
-  toolchains = ["@bazel_tools//tools/jdk:current_java_runtime"],
-  cmd = """
+    name = "frontend",
+    srcs = [
+        "webpack.config.js",
+        "declarations.d.ts",
+        "tsconfig.json",
+        "tslint.json",
+        "package.json",
+        ".modernizrrc",
+        ":src",
+        "@navigator_frontend_deps//:node_modules",
+    ],
+    outs = [
+        "frontend.tgz",
+        "frontend.jar",
+    ],
+    cmd = """
     # Working directories
     export IN="$$(pwd)/$(@D)/in"
     export OUT="$$(pwd)/$(@D)/out"
@@ -109,7 +104,12 @@ genrule(
     echo "Packaging result from $$OUT to $(@D)/frontend.jar"
     $(JAVABASE)/bin/jar c0Mf "$(@D)/frontend.jar" -C $$OUT .
   """,
-  visibility = [
-    '//navigator:__subpackages__',
-  ],
+    toolchains = ["@bazel_tools//tools/jdk:current_java_runtime"],
+    tools = [
+        ":webpack",
+        "@bazel_tools//tools/jdk:current_java_runtime",
+    ],
+    visibility = [
+        "//navigator:__subpackages__",
+    ],
 )
diff --git a/navigator/integration-test/BUILD.bazel b/navigator/integration-test/BUILD.bazel
index 3d614c1e1b..6e6497170d 100644
--- a/navigator/integration-test/BUILD.bazel
+++ b/navigator/integration-test/BUILD.bazel
@@ -1,28 +1,29 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load ('//bazel_tools:scala.bzl', 'da_scala_binary')
+load("//bazel_tools:scala.bzl", "da_scala_binary")
 
 da_scala_binary(
-  name = 'navigatortest-jar',
-  deps = [
-      '//3rdparty/jvm/ch/qos/logback:logback_classic',
-      '//3rdparty/jvm/com/github/scopt',
-      '//3rdparty/jvm/io/circe:circe_core',
-      '//3rdparty/jvm/io/circe:circe_generic',
-      '//3rdparty/jvm/io/circe:circe_parser',
-      '//3rdparty/jvm/org/seleniumhq/selenium:selenium_java',
-      '//3rdparty/jvm/org/scalatest:scalatest',
-      '//3rdparty/jvm/com/typesafe/scala_logging:scala_logging',
-      '//ledger/sandbox:sandbox',
-      '//daml-foundations/daml-tools/damlc-jar:damlc_library_jar',
-  ],
-  main_class = "com.digitalasset.navigator.test.Main",
-  srcs = glob(
-    [
-      'src/**/*.scala'
-    ]),
-  resources = ["src/main/resources/Main.daml"],
-  resource_strip_prefix = "navigator/integration-test/src/main/resources/",
-  visibility = ['//visibility:public']
+    name = "navigatortest-jar",
+    srcs = glob(
+        [
+            "src/**/*.scala",
+        ],
+    ),
+    main_class = "com.digitalasset.navigator.test.Main",
+    resource_strip_prefix = "navigator/integration-test/src/main/resources/",
+    resources = ["src/main/resources/Main.daml"],
+    visibility = ["//visibility:public"],
+    deps = [
+        "//3rdparty/jvm/ch/qos/logback:logback_classic",
+        "//3rdparty/jvm/com/github/scopt",
+        "//3rdparty/jvm/com/typesafe/scala_logging",
+        "//3rdparty/jvm/io/circe:circe_core",
+        "//3rdparty/jvm/io/circe:circe_generic",
+        "//3rdparty/jvm/io/circe:circe_parser",
+        "//3rdparty/jvm/org/scalatest",
+        "//3rdparty/jvm/org/seleniumhq/selenium:selenium_java",
+        "//daml-foundations/daml-tools/damlc-jar:damlc_library_jar",
+        "//ledger/sandbox",
+    ],
 )
diff --git a/nix/third-party/gRPC-haskell/BUILD.bazel b/nix/third-party/gRPC-haskell/BUILD.bazel
index 4692e6135b..1b4011d0aa 100644
--- a/nix/third-party/gRPC-haskell/BUILD.bazel
+++ b/nix/third-party/gRPC-haskell/BUILD.bazel
@@ -1,60 +1,58 @@
-load("//bazel_tools:haskell.bzl", "da_haskell_library", "da_haskell_binary", "da_haskell_test")
+load("//bazel_tools:haskell.bzl", "da_haskell_binary", "da_haskell_library", "da_haskell_test")
 
 da_haskell_library(
-  name = "grpc-haskell",
-  srcs = glob(["src/**/*.hs"]),
-  src_strip_prefix = "src",
-  deps = [
-    "//nix/third-party/proto3-suite:proto3-suite",
-    "//nix/third-party/proto3-wire:proto3-wire",
-    "//nix/third-party/gRPC-haskell/core:grpc-haskell-core",
-  ],
-  hazel_deps = [
-    "base",
-    "bytestring",
-    "async",
-  ],
-  visibility = ["//visibility:public"]
+    name = "grpc-haskell",
+    srcs = glob(["src/**/*.hs"]),
+    hazel_deps = [
+        "base",
+        "bytestring",
+        "async",
+    ],
+    src_strip_prefix = "src",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//nix/third-party/gRPC-haskell/core:grpc-haskell-core",
+        "//nix/third-party/proto3-suite",
+        "//nix/third-party/proto3-wire",
+    ],
 )
 
 da_haskell_binary(
-  name = "hellos-server",
-  srcs = glob(['examples/hellos/hellos-server/*.hs']),
-  src_strip_prefix = 'examples/hellos/hellos-server',
-  deps = [
-    "//nix/third-party/proto3-suite:proto3-suite",
-    "//nix/third-party/proto3-wire:proto3-wire",
-    "//nix/third-party/gRPC-haskell/core:grpc-haskell-core",
-    ":grpc-haskell"
-  ],
-  hazel_deps = [
-    "base",
-    "async",
-    "bytestring",
-    "containers",
-    "text",
-    "transformers"
-  ]
+    name = "hellos-server",
+    srcs = glob(["examples/hellos/hellos-server/*.hs"]),
+    hazel_deps = [
+        "base",
+        "async",
+        "bytestring",
+        "containers",
+        "text",
+        "transformers",
+    ],
+    src_strip_prefix = "examples/hellos/hellos-server",
+    deps = [
+        ":grpc-haskell",
+        "//nix/third-party/gRPC-haskell/core:grpc-haskell-core",
+        "//nix/third-party/proto3-suite",
+        "//nix/third-party/proto3-wire",
+    ],
 )
 
-
 da_haskell_binary(
-  name = "hellos-client",
-  srcs = glob(['examples/hellos/hellos-client/*.hs']),
-  src_strip_prefix = 'examples/hellos/hellos-client',
-  deps = [
-    "//nix/third-party/proto3-suite:proto3-suite",
-    "//nix/third-party/proto3-wire:proto3-wire",
-    "//nix/third-party/gRPC-haskell/core:grpc-haskell-core",
-    ":grpc-haskell"
-  ],
-  hazel_deps = [
-    "base",
-    "async",
-    "bytestring",
-    "containers",
-    "text",
-    "transformers"
-  ]
+    name = "hellos-client",
+    srcs = glob(["examples/hellos/hellos-client/*.hs"]),
+    hazel_deps = [
+        "base",
+        "async",
+        "bytestring",
+        "containers",
+        "text",
+        "transformers",
+    ],
+    src_strip_prefix = "examples/hellos/hellos-client",
+    deps = [
+        ":grpc-haskell",
+        "//nix/third-party/gRPC-haskell/core:grpc-haskell-core",
+        "//nix/third-party/proto3-suite",
+        "//nix/third-party/proto3-wire",
+    ],
 )
-
diff --git a/nix/third-party/gRPC-haskell/core/BUILD.bazel b/nix/third-party/gRPC-haskell/core/BUILD.bazel
index fbe59b8a5d..e0801ac3a5 100644
--- a/nix/third-party/gRPC-haskell/core/BUILD.bazel
+++ b/nix/third-party/gRPC-haskell/core/BUILD.bazel
@@ -1,69 +1,72 @@
-load("//bazel_tools:haskell.bzl",
-  "da_haskell_library", "da_haskell_binary", "da_haskell_test",
-  "c2hs_suite"
+load(
+    "//bazel_tools:haskell.bzl",
+    "c2hs_suite",
+    "da_haskell_binary",
+    "da_haskell_library",
+    "da_haskell_test",
 )
 load(
-  "@io_tweag_rules_haskell//haskell:haskell.bzl",
-  "haskell_cc_import"
+    "@io_tweag_rules_haskell//haskell:haskell.bzl",
+    "haskell_cc_import",
 )
 load("//bazel_tools:fat_cc_library.bzl", "fat_cc_library")
 
 c2hs_suite(
-  name = "grpc-haskell-core",
-  srcs = [
-    "src/Network/GRPC/Unsafe/Constants.hsc"
-  ] + glob(["src/**/*.hs"]),
+    name = "grpc-haskell-core",
+    srcs = [
+        "src/Network/GRPC/Unsafe/Constants.hsc",
+    ] + glob(["src/**/*.hs"]),
+    c2hs_src_strip_prefix = "src",
 
-  # NOTE(JM): Order matters, later .chs files can import earlier ones.
-  c2hs_srcs = [
-    "src/Network/GRPC/Unsafe/Time.chs",
-    "src/Network/GRPC/Unsafe/ChannelArgs.chs",
-    "src/Network/GRPC/Unsafe/Slice.chs",
-    "src/Network/GRPC/Unsafe/ByteBuffer.chs",
-    "src/Network/GRPC/Unsafe/Metadata.chs",
-    "src/Network/GRPC/Unsafe/Op.chs",
-    "src/Network/GRPC/Unsafe.chs",
-    "src/Network/GRPC/Unsafe/Security.chs"
-  ],
-  c2hs_src_strip_prefix = "src",
-  deps = [
-      ":fat_cbits",
-      "//nix/third-party/proto3-suite",
-      "//nix/third-party/proto3-wire",
-  ],
-  compiler_flags = ["-XCPP"],
-  hazel_deps = [
-    "async",
-    "base",
-    "bytestring",
-    "clock",
-    "containers",
-    "managed",
-    "pipes",
-    "safe",
-    "sorted-list",
-    "stm",
-    "tasty",
-    "tasty-hunit",
-    "tasty-quickcheck",
-    "transformers",
-    "vector",
-  ],
-  visibility = ["//visibility:public"],
+    # NOTE(JM): Order matters, later .chs files can import earlier ones.
+    c2hs_srcs = [
+        "src/Network/GRPC/Unsafe/Time.chs",
+        "src/Network/GRPC/Unsafe/ChannelArgs.chs",
+        "src/Network/GRPC/Unsafe/Slice.chs",
+        "src/Network/GRPC/Unsafe/ByteBuffer.chs",
+        "src/Network/GRPC/Unsafe/Metadata.chs",
+        "src/Network/GRPC/Unsafe/Op.chs",
+        "src/Network/GRPC/Unsafe.chs",
+        "src/Network/GRPC/Unsafe/Security.chs",
+    ],
+    compiler_flags = ["-XCPP"],
+    hazel_deps = [
+        "async",
+        "base",
+        "bytestring",
+        "clock",
+        "containers",
+        "managed",
+        "pipes",
+        "safe",
+        "sorted-list",
+        "stm",
+        "tasty",
+        "tasty-hunit",
+        "tasty-quickcheck",
+        "transformers",
+        "vector",
+    ],
+    visibility = ["//visibility:public"],
+    deps = [
+        ":fat_cbits",
+        "//nix/third-party/proto3-suite",
+        "//nix/third-party/proto3-wire",
+    ],
 )
 
 cc_library(
-  name = "cbits",
-  srcs = glob(["cbits/*.c"]),
-  hdrs = glob(["include/*.h"]),
-  includes = ["include/"],
-  deps = [
-    "@com_github_grpc_grpc//:grpc",
-  ],
-  visibility = ["//visibility:public"],
+    name = "cbits",
+    srcs = glob(["cbits/*.c"]),
+    hdrs = glob(["include/*.h"]),
+    includes = ["include/"],
+    visibility = ["//visibility:public"],
+    deps = [
+        "@com_github_grpc_grpc//:grpc",
+    ],
 )
 
 fat_cc_library(
     name = "fat_cbits",
-    input_lib = ":cbits"
+    input_lib = ":cbits",
 )
diff --git a/nix/third-party/proto3-suite/BUILD.bazel b/nix/third-party/proto3-suite/BUILD.bazel
index cccaf0a057..0373f1133b 100644
--- a/nix/third-party/proto3-suite/BUILD.bazel
+++ b/nix/third-party/proto3-suite/BUILD.bazel
@@ -1,89 +1,93 @@
-load("//bazel_tools:haskell.bzl", "da_haskell_library", "da_haskell_binary", "da_haskell_test")
+load("//bazel_tools:haskell.bzl", "da_haskell_binary", "da_haskell_library", "da_haskell_test")
 
 da_haskell_library(
-  name = 'proto3-suite',
-  srcs = glob(['src/**/*.hs']),
-  src_strip_prefix = 'src',
-  deps = [
-    '//nix/third-party/proto3-wire:proto3-wire'
-  ],
-  hazel_deps = [
-    'aeson',
-    'aeson-pretty',
-    'attoparsec',
-    'base',
-    'base64-bytestring',
-    'bytestring',
-    'containers',
-    'deepseq',
-    'directory',
-    'filepath',
-    'foldl',
-    'haskell-src',
-    'lens',
-    'mtl',
-    'neat-interpolation',
-    'parsec',
-    'parsers',
-    'pretty',
-    'pretty-show',
-    'QuickCheck',
-    'safe',
-    'semigroups',
-    'swagger2',
-    'system-filepath',
-    'text',
-    'transformers',
-    'turtle',
-    'vector',
-  ],
-  visibility = ["//visibility:public"]
+    name = "proto3-suite",
+    srcs = glob(["src/**/*.hs"]),
+    hazel_deps = [
+        "aeson",
+        "aeson-pretty",
+        "attoparsec",
+        "base",
+        "base64-bytestring",
+        "bytestring",
+        "containers",
+        "deepseq",
+        "directory",
+        "filepath",
+        "foldl",
+        "haskell-src",
+        "lens",
+        "mtl",
+        "neat-interpolation",
+        "parsec",
+        "parsers",
+        "pretty",
+        "pretty-show",
+        "QuickCheck",
+        "safe",
+        "semigroups",
+        "swagger2",
+        "system-filepath",
+        "text",
+        "transformers",
+        "turtle",
+        "vector",
+    ],
+    src_strip_prefix = "src",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//nix/third-party/proto3-wire",
+    ],
 )
 
 da_haskell_test(
-  name = 'test',
-  srcs = glob(['tests/Main.hs', 'tests/Arb*.hs', 'tests/Test*.hs']),
-  data = glob(['test-files/*']),
-  src_strip_prefix = 'test',
-  deps = [
-    ':proto3-suite',
-    '//nix/third-party/proto3-wire:proto3-wire'
-  ],
-  hazel_deps = [
-    'base',
-    'QuickCheck',
-    'aeson',
-    'attoparsec',
-    'directory',
-    'base64-bytestring',
-    'bytestring',
-    'cereal',
-    'pretty-show',
-    'semigroups',
-    'tasty',
-    'tasty-hunit',
-    'tasty-quickcheck',
-    'text',
-    'transformers',
-    'turtle',
-    'vector'
-  ],
-  visibility = ["//visibility:public"]
+    name = "test",
+    srcs = glob([
+        "tests/Main.hs",
+        "tests/Arb*.hs",
+        "tests/Test*.hs",
+    ]),
+    data = glob(["test-files/*"]),
+    hazel_deps = [
+        "base",
+        "QuickCheck",
+        "aeson",
+        "attoparsec",
+        "directory",
+        "base64-bytestring",
+        "bytestring",
+        "cereal",
+        "pretty-show",
+        "semigroups",
+        "tasty",
+        "tasty-hunit",
+        "tasty-quickcheck",
+        "text",
+        "transformers",
+        "turtle",
+        "vector",
+    ],
+    src_strip_prefix = "test",
+    visibility = ["//visibility:public"],
+    deps = [
+        ":proto3-suite",
+        "//nix/third-party/proto3-wire",
+    ],
 )
 
 da_haskell_binary(
-  name = 'compile-proto-file',
-  srcs = glob(['tools/compile-proto-file/*.hs']),
-  src_strip_prefix = 'tools/compile-proto-file',
-  hazel_deps = [
-    'base',
-    'turtle',
-    'text',
-    'optparse-generic',
-    'system-filepath'
-  ],
-  deps = [
-    ':proto3-suite'
-  ],
-  visibility = ["//visibility:public"],
+    name = "compile-proto-file",
+    srcs = glob(["tools/compile-proto-file/*.hs"]),
+    hazel_deps = [
+        "base",
+        "turtle",
+        "text",
+        "optparse-generic",
+        "system-filepath",
+    ],
+    src_strip_prefix = "tools/compile-proto-file",
+    visibility = ["//visibility:public"],
+    deps = [
+        ":proto3-suite",
+    ],
 )
diff --git a/nix/third-party/proto3-wire/BUILD.bazel b/nix/third-party/proto3-wire/BUILD.bazel
index af3f95f56f..d7dac38967 100644
--- a/nix/third-party/proto3-wire/BUILD.bazel
+++ b/nix/third-party/proto3-wire/BUILD.bazel
@@ -1,38 +1,39 @@
 load("//bazel_tools:haskell.bzl", "da_haskell_library", "da_haskell_test")
+
 da_haskell_library(
-  name = 'proto3-wire',
-  srcs = glob(['src/**/*.hs']),
-  src_strip_prefix = 'src',
-  hazel_deps = [
-    'base',
-    'bytestring',
-    'containers',
-    'deepseq',
-    'hashable',
-    'safe',
-    'text',
-    'unordered-containers',
-    'QuickCheck'
-  ],
-  visibility = ["//visibility:public"]
+    name = "proto3-wire",
+    srcs = glob(["src/**/*.hs"]),
+    hazel_deps = [
+        "base",
+        "bytestring",
+        "containers",
+        "deepseq",
+        "hashable",
+        "safe",
+        "text",
+        "unordered-containers",
+        "QuickCheck",
+    ],
+    src_strip_prefix = "src",
+    visibility = ["//visibility:public"],
 )
 
 da_haskell_test(
- name = 'test',
- srcs = glob(['test/*.hs']),
- src_strip_prefix = 'test',
- deps = [':proto3-wire'],
- hazel_deps = [
-    'base',
-    'bytestring',
-    'directory',
-    'hashable',
-    'text',
-    'QuickCheck',
-    'cereal',
-    'tasty',
-    'tasty-hunit',
-    'tasty-quickcheck'
- ],
- visibility = ["//visibility:public"]
+    name = "test",
+    srcs = glob(["test/*.hs"]),
+    hazel_deps = [
+        "base",
+        "bytestring",
+        "directory",
+        "hashable",
+        "text",
+        "QuickCheck",
+        "cereal",
+        "tasty",
+        "tasty-hunit",
+        "tasty-quickcheck",
+    ],
+    src_strip_prefix = "test",
+    visibility = ["//visibility:public"],
+    deps = [":proto3-wire"],
 )
diff --git a/notices-gen/BUILD.bazel b/notices-gen/BUILD.bazel
index 832ca21d08..975dd8bbb7 100644
--- a/notices-gen/BUILD.bazel
+++ b/notices-gen/BUILD.bazel
@@ -1,13 +1,11 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load ("//bazel_tools:haskell.bzl", "da_haskell_binary")
+load("//bazel_tools:haskell.bzl", "da_haskell_binary")
 
 da_haskell_binary(
     name = "notices-gen",
     srcs = glob(["src/**/*.hs"]),
-    src_strip_prefix = "src",
-    deps = [],
     hazel_deps = [
         "base",
         "bytestring",
@@ -17,5 +15,7 @@ da_haskell_binary(
         "process",
         "xml",
     ],
+    src_strip_prefix = "src",
     visibility = ["//visibility:public"],
+    deps = [],
 )
diff --git a/pipeline/samples/bazel/haskell/BUILD b/pipeline/samples/bazel/haskell/BUILD
index 36db4e1bf7..aa698d8975 100644
--- a/pipeline/samples/bazel/haskell/BUILD
+++ b/pipeline/samples/bazel/haskell/BUILD
@@ -1,21 +1,24 @@
-load("@io_tweag_rules_haskell//haskell:haskell.bzl",
-     "haskell_binary",
-     "haskell_import",
-     "haskell_library",
+load(
+    "@io_tweag_rules_haskell//haskell:haskell.bzl",
+    "haskell_binary",
+    "haskell_import",
+    "haskell_library",
 )
 load("@ai_formation_hazel//:hazel.bzl", "hazel_library")
 
 haskell_import(name = "base")
 
-
 haskell_binary(
-  name = "hello",
-  srcs = ["Hello.hs"],
-  deps = [":base"],
+    name = "hello",
+    srcs = ["Hello.hs"],
+    deps = [":base"],
 )
 
 haskell_library(
-  name = "sop-example",
-  srcs = ["SOP.hs"],
-  deps = [":base", hazel_library("generics-sop")],
+    name = "sop-example",
+    srcs = ["SOP.hs"],
+    deps = [
+        ":base",
+        hazel_library("generics-sop"),
+    ],
 )
diff --git a/pipeline/samples/bazel/java/BUILD b/pipeline/samples/bazel/java/BUILD
index a2a89a8f5a..a6a852d66f 100644
--- a/pipeline/samples/bazel/java/BUILD
+++ b/pipeline/samples/bazel/java/BUILD
@@ -33,8 +33,8 @@ java_test(
     srcs = ["src/test/java/com/example/myproject/TestHello.java"],
     test_class = "com.example.myproject.TestHello",
     deps = [
+        "//3rdparty/jvm/junit",
         "//pipeline/samples/bazel/java:hello-lib",
-        "//3rdparty/jvm/junit:junit",
     ],
 )
 
@@ -43,7 +43,7 @@ java_test(
     srcs = ["src/test/java/com/example/myproject/TestCustomGreeting.java"],
     test_class = "com.example.myproject.TestCustomGreeting",
     deps = [
+        "//3rdparty/jvm/junit",
         "//pipeline/samples/bazel/java:custom-greeting",
-        "//3rdparty/jvm/junit:junit",
     ],
-)
\ No newline at end of file
+)
diff --git a/pipeline/samples/bazel/scala/BUILD b/pipeline/samples/bazel/scala/BUILD
index 864ef64f19..12ae0556cb 100644
--- a/pipeline/samples/bazel/scala/BUILD
+++ b/pipeline/samples/bazel/scala/BUILD
@@ -1,6 +1,6 @@
 package(default_visibility = ["//visibility:public"])
 
-load('@io_bazel_rules_scala//scala:scala.bzl', 'scala_library', 'scala_binary', 'scala_test')
+load("@io_bazel_rules_scala//scala:scala.bzl", "scala_binary", "scala_library", "scala_test")
 
 filegroup(
     name = "greeting",
@@ -8,9 +8,9 @@ filegroup(
 )
 
 scala_binary(
-  name = "hello-world",
-  main_class = "com.example.myproject.Greeter",
-  runtime_deps = [":hello-lib"],
+    name = "hello-world",
+    main_class = "com.example.myproject.Greeter",
+    runtime_deps = [":hello-lib"],
 )
 
 scala_library(
@@ -34,8 +34,8 @@ scala_test(
     name = "hello",
     srcs = ["src/test/scala/com/example/myproject/TestHello.scala"],
     deps = [
+        "//3rdparty/jvm/org/scalatest",
         "//pipeline/samples/bazel/scala:hello-lib",
-        "//3rdparty/jvm/org/scalatest:scalatest",
     ],
 )
 
@@ -43,7 +43,7 @@ scala_test(
     name = "custom",
     srcs = ["src/test/scala/com/example/myproject/TestCustomGreeting.scala"],
     deps = [
+        "//3rdparty/jvm/org/scalatest",
         "//pipeline/samples/bazel/scala:custom-greeting",
-        "//3rdparty/jvm/org/scalatest:scalatest",
     ],
 )
diff --git a/pipeline/samples/bazel/scala/jmh/BUILD b/pipeline/samples/bazel/scala/jmh/BUILD
index afebe19c91..d58c757be9 100644
--- a/pipeline/samples/bazel/scala/jmh/BUILD
+++ b/pipeline/samples/bazel/scala/jmh/BUILD
@@ -2,10 +2,9 @@ load(
     "@io_bazel_rules_scala//jmh:jmh.bzl",
     "scala_benchmark_jmh",
 )
-
 load(
     "//bazel_tools:scala.bzl",
-    "da_scala_library"
+    "da_scala_library",
 )
 
 java_library(
diff --git a/release/BUILD.bazel b/release/BUILD.bazel
index 00ebe45cbf..dcd4e4a43b 100644
--- a/release/BUILD.bazel
+++ b/release/BUILD.bazel
@@ -1,13 +1,11 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load ("//bazel_tools:haskell.bzl", "da_haskell_binary")
+load("//bazel_tools:haskell.bzl", "da_haskell_binary")
 
 da_haskell_binary(
     name = "release",
     srcs = glob(["src/**/*.hs"]),
-    src_strip_prefix = "src",
-    deps = [],
     hazel_deps = [
         "ansi-terminal",
         "base",
@@ -36,7 +34,9 @@ da_haskell_binary(
         "mtl",
         "xml-conduit",
     ],
+    src_strip_prefix = "src",
     visibility = ["//visibility:public"],
+    deps = [],
 )
 
 # NOTE(MH): This tarball contains only metadata for an SDK release. The SDK
@@ -51,7 +51,7 @@ genrule(
         "//:component-version",
         "//:git-revision",
         "//:CHANGELOG",
-        "sdk.yaml"
+        "sdk.yaml",
     ],
     outs = ["sdk-metadata-tarball.tar.gz"],
     cmd = """
diff --git a/rules_daml/BUILD.bazel b/rules_daml/BUILD.bazel
index 802152df8e..73b299b1a8 100644
--- a/rules_daml/BUILD.bazel
+++ b/rules_daml/BUILD.bazel
@@ -2,21 +2,22 @@
 # SPDX-License-Identifier: Apache-2.0
 
 # Export Bazel sources for Bazel API docs.
-exports_files(["daml.bzl"], visibility = ["//bazel_tools/docs:__pkg__"])
+exports_files(
+    ["daml.bzl"],
+    visibility = ["//bazel_tools/docs:__pkg__"],
+)
 
 load("@io_bazel_rules_scala//scala:scala.bzl", "scala_binary")
 load("//rules_daml:daml.bzl", "daml_sandbox_version")
 
 alias(
-  name = "damli",
-  actual = "//daml-foundations/daml-tools/da-hs-damli-app:damli",
-  visibility = ['//visibility:public'],
+    name = "damli",
+    actual = "//daml-foundations/daml-tools/da-hs-damli-app:damli",
+    visibility = ["//visibility:public"],
 )
 
 alias(
-  name = "codegen",
-  actual = "//language-support/scala/codegen:codegen-main",
-  visibility = ['//visibility:public'],
+    name = "codegen",
+    actual = "//language-support/scala/codegen:codegen-main",
+    visibility = ["//visibility:public"],
 )
-
-
diff --git a/rules_daml/daml.bzl b/rules_daml/daml.bzl
index 68435bfdb3..68a58e4657 100644
--- a/rules_daml/daml.bzl
+++ b/rules_daml/daml.bzl
@@ -3,10 +3,10 @@
 
 load("@bazel_skylib//lib:paths.bzl", "paths")
 
-daml_provider = provider(doc='DAML provider', fields = {
-    'dalf': 'The DAML-LF file.',
-    'dar': 'The packaged archive.',
-    'srcjar': 'The generated Scala sources as srcjar.',
+daml_provider = provider(doc = "DAML provider", fields = {
+    "dalf": "The DAML-LF file.",
+    "dar": "The packaged archive.",
+    "srcjar": "The generated Scala sources as srcjar.",
 })
 
 def _daml_impl_compile_dalf(ctx):
@@ -46,6 +46,7 @@ def _daml_impl_package_dar(ctx):
 def _daml_impl_generate_scala(ctx):
     # Declare Scala source directory
     scala_dir = ctx.actions.declare_directory("%s_scala" % ctx.attr.name)
+
     # Call codegen
     gen_args = ctx.actions.args()
     gen_args.add("--input-file")
@@ -64,6 +65,7 @@ def _daml_impl_generate_scala(ctx):
         executable = ctx.executable._codegen,
         use_default_shell_env = True,
     )
+
     # Call jar to create srcjar
     jar_args = ctx.actions.args()
     jar_args.add("cf")
@@ -83,6 +85,7 @@ def _daml_impl(ctx):
     _daml_impl_compile_dalf(ctx)
     _daml_impl_package_dar(ctx)
     _daml_impl_generate_scala(ctx)
+
     # DAML provider
     daml = daml_provider(
         dalf = ctx.outputs.dalf,
@@ -102,10 +105,10 @@ def _daml_outputs_impl(name):
         for (k, v) in patterns.items()
     }
 
-
 def _daml_compile_impl(ctx):
     _daml_impl_compile_dalf(ctx)
     _daml_impl_package_dar(ctx)
+
     # DAML provider
     daml = daml_provider(
         dalf = ctx.outputs.dalf,
@@ -119,7 +122,7 @@ def _daml_compile_outputs_impl(name):
         "dar": "{name}.dar",
     }
     return {
-        k: v.format( name = name)
+        k: v.format(name = name)
         for (k, v) in patterns.items()
     }
 
@@ -131,15 +134,14 @@ daml_compile = rule(
         "main_src": attr.label(
             allow_single_file = [".daml"],
             mandatory = True,
-            doc = "The main DAML file that will be passed to the compiler."
+            doc = "The main DAML file that will be passed to the compiler.",
         ),
         "srcs": attr.label_list(
             allow_files = [".daml"],
             default = [],
-            doc = "Other DAML files that compilation depends on."
+            doc = "Other DAML files that compilation depends on.",
         ),
-
-        "target": attr.string(doc="DAML-LF version to output"),
+        "target": attr.string(doc = "DAML-LF version to output"),
         "damlc": attr.label(
             executable = True,
             cfg = "host",
@@ -169,24 +171,23 @@ def _daml_test_impl(ctx):
     return [DefaultInfo(runfiles = runfiles)]
 
 daml_test = rule(
-      implementation = _daml_test_impl,
-      attrs = {
-          "srcs": attr.label_list(
-              allow_files = [".daml"],
-              default = [],
-              doc = "DAML source files to test."
-          ),
-          "damlc": attr.label(
-              executable = True,
-              cfg = "host",
-              allow_files = True,
-              default = Label("//daml-foundations/daml-tools/da-hs-damlc-app"),
-          ),
-      },
-      test = True,
+    implementation = _daml_test_impl,
+    attrs = {
+        "srcs": attr.label_list(
+            allow_files = [".daml"],
+            default = [],
+            doc = "DAML source files to test.",
+        ),
+        "damlc": attr.label(
+            executable = True,
+            cfg = "host",
+            allow_files = True,
+            default = Label("//daml-foundations/daml-tools/da-hs-damlc-app"),
+        ),
+    },
+    test = True,
 )
 
-
 # Going forward this rule should be refactored by the DAML team and the
 # codegen parts should be separated into its own rule.
 daml = rule(
@@ -195,20 +196,20 @@ daml = rule(
         "main_src": attr.label(
             allow_single_file = [".daml"],
             mandatory = True,
-            doc = "The main DAML file that will be passed to the compiler."
+            doc = "The main DAML file that will be passed to the compiler.",
         ),
         "srcs": attr.label_list(
             allow_files = [".daml"],
             default = [],
-            doc = "Other DAML files that compilation depends on."
+            doc = "Other DAML files that compilation depends on.",
         ),
-        "target": attr.string(doc="DAML-LF version to output"),
-        "package": attr.string(mandatory=True, doc="Package name e.g. com.digitalasset.mypackage."),
+        "target": attr.string(doc = "DAML-LF version to output"),
+        "package": attr.string(mandatory = True, doc = "Package name e.g. com.digitalasset.mypackage."),
         "damlc": attr.label(
             executable = True,
             cfg = "host",
             allow_files = True,
-            default = Label("//daml-foundations/daml-tools/damlc-jar:damlc_jar")
+            default = Label("//daml-foundations/daml-tools/damlc-jar:damlc_jar"),
         ),
         "_codegen": attr.label(
             executable = True,
@@ -220,7 +221,7 @@ daml = rule(
             executable = True,
             cfg = "host",
             allow_single_file = True,
-            default = Label ("@bazel_tools//tools/jdk:jar")
+            default = Label("@bazel_tools//tools/jdk:jar"),
         ),
     },
     executable = False,
@@ -249,7 +250,6 @@ Example:
   The generated DAR file is available under the label `:example.dar`.
 """
 
-
 _daml_binary_script_template = """
 #!/usr/bin/env sh
 {java} -jar {sandbox} $@ {dar}
diff --git a/scala-protoc-plugins/scala-akka/BUILD.bazel b/scala-protoc-plugins/scala-akka/BUILD.bazel
index 98f7e76220..71d1db81ed 100644
--- a/scala-protoc-plugins/scala-akka/BUILD.bazel
+++ b/scala-protoc-plugins/scala-akka/BUILD.bazel
@@ -1,7 +1,7 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load("//bazel_tools:scala.bzl", "da_scala_library", "da_scala_binary")
+load("//bazel_tools:scala.bzl", "da_scala_binary", "da_scala_library")
 
 da_scala_binary(
     name = "compiler_plugin",
@@ -13,8 +13,8 @@ da_scala_binary(
     ],
     deps = [
         "//3rdparty/jvm/com/google/protobuf:protobuf_java",
-        '//3rdparty/jvm/com/thesamet/scalapb:protoc_bridge',
-        '//3rdparty/jvm/com/thesamet/scalapb:compilerplugin',
+        "//3rdparty/jvm/com/thesamet/scalapb:compilerplugin",
+        "//3rdparty/jvm/com/thesamet/scalapb:protoc_bridge",
     ],
 )
 
diff --git a/scala-protoc-plugins/scala-logging/BUILD.bazel b/scala-protoc-plugins/scala-logging/BUILD.bazel
index c6e43da762..e677596471 100644
--- a/scala-protoc-plugins/scala-logging/BUILD.bazel
+++ b/scala-protoc-plugins/scala-logging/BUILD.bazel
@@ -1,7 +1,7 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load("//bazel_tools:scala.bzl", "da_scala_library", "da_scala_binary")
+load("//bazel_tools:scala.bzl", "da_scala_binary", "da_scala_library")
 
 da_scala_binary(
     name = "compiler_plugin",
@@ -13,26 +13,25 @@ da_scala_binary(
     ],
     deps = [
         "//3rdparty/jvm/com/google/protobuf:protobuf_java",
-        '//3rdparty/jvm/com/thesamet/scalapb:protoc_bridge',
-        '//3rdparty/jvm/com/thesamet/scalapb:compilerplugin',
+        "//3rdparty/jvm/com/thesamet/scalapb:compilerplugin",
+        "//3rdparty/jvm/com/thesamet/scalapb:protoc_bridge",
     ],
 )
 
 da_scala_library(
     name = "scala-logging-lib",
     srcs = glob(["lib/*.scala"]),
+    tags = ["maven_coordinates=com.digitalasset.ledger-api:scala-logging-lib:__VERSION__"],
+    visibility = [
+        "//visibility:public",
+    ],
     deps = [
         "//3rdparty/jvm/io/grpc:grpc_core",
         "//3rdparty/jvm/io/grpc:grpc_stub",
-        '//3rdparty/jvm/org/slf4j:slf4j_api',
+        "//3rdparty/jvm/org/slf4j:slf4j_api",
     ],
-    visibility = [
-        '//visibility:public',
-    ],
-    tags = ["maven_coordinates=com.digitalasset.ledger-api:scala-logging-lib:__VERSION__"],
 )
 
-
 # From https://github.com/stackb/rules_proto/blob/3f890f5d6774bd74df28e89b20f34155dfe77732/scala/BUILD.bazel#L78-L97
 # Curiously this didn't work
 #
diff --git a/scala-protoc-plugins/scalapb/BUILD.bazel b/scala-protoc-plugins/scalapb/BUILD.bazel
index 54378012c9..44251abc4a 100644
--- a/scala-protoc-plugins/scalapb/BUILD.bazel
+++ b/scala-protoc-plugins/scalapb/BUILD.bazel
@@ -1,7 +1,7 @@
 # Copyright (c) 2019 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-load("//bazel_tools:scala.bzl", "da_scala_library", "da_scala_binary")
+load("//bazel_tools:scala.bzl", "da_scala_binary", "da_scala_library")
 
 da_scala_binary(
     name = "compiler_plugin",
@@ -13,8 +13,8 @@ da_scala_binary(
     ],
     deps = [
         "//3rdparty/jvm/com/google/protobuf:protobuf_java",
-        '//3rdparty/jvm/com/thesamet/scalapb:protoc_bridge',
-        '//3rdparty/jvm/com/thesamet/scalapb:compilerplugin',
+        "//3rdparty/jvm/com/thesamet/scalapb:compilerplugin",
+        "//3rdparty/jvm/com/thesamet/scalapb:protoc_bridge",
     ],
 )
 
diff --git a/sdk/BUILD.bazel b/sdk/BUILD.bazel
index 4718934070..4731086e24 100644
--- a/sdk/BUILD.bazel
+++ b/sdk/BUILD.bazel
@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 filegroup(
-  name = "sdk-templates",
-  srcs = glob(["templates/**"]),
-  visibility = ["//sdk:__subpackages__"],
+    name = "sdk-templates",
+    srcs = glob(["templates/**"]),
+    visibility = ["//sdk:__subpackages__"],
 )
diff --git a/sdk/releases/BUILD.bazel b/sdk/releases/BUILD.bazel
index 4e99144cc8..4d5c4e20da 100644
--- a/sdk/releases/BUILD.bazel
+++ b/sdk/releases/BUILD.bazel
@@ -4,13 +4,13 @@
 # Export the test runner and test cases so that they can be used
 # from the release tests.
 genrule(
-  name = 'test',
-  outs = ['test.sh'],
-  srcs = ['scripts/test.sh'],
-  cmd = '''
+    name = "test",
+    srcs = ["scripts/test.sh"],
+    outs = ["test.sh"],
+    cmd = """
     OUT=$$(dirname $(location test.sh))
     cp $(SRCS) $$OUT
     chmod +x $$OUT
-  ''',
-  visibility = ['//visibility:public']
+  """,
+    visibility = ["//visibility:public"],
 )
diff --git a/sdk/releases/HEAD/BUILD.bazel b/sdk/releases/HEAD/BUILD.bazel
index 08484a0525..3b220c8be5 100644
--- a/sdk/releases/HEAD/BUILD.bazel
+++ b/sdk/releases/HEAD/BUILD.bazel
@@ -2,17 +2,17 @@
 # SPDX-License-Identifier: Apache-2.0
 
 genrule(
-  name = 'head-components-tarball',
-  outs = ['head-components.tar.gz'],
-  srcs = [
-    '//daml-foundations/daml-tools/da-hs-damlc-app:damlc-dist',
-    '//daml-foundations/daml-tools/daml-extension:dist',
-    '//ledger/sandbox:sandbox-head-tarball',
-    '//navigator/backend:navigator-binary_deploy.jar',
-    '//extractor:extractor-binary_deploy.jar',
-    'sdk.yaml'
-  ],
-  cmd = '''
+    name = "head-components-tarball",
+    srcs = [
+        "//daml-foundations/daml-tools/da-hs-damlc-app:damlc-dist",
+        "//daml-foundations/daml-tools/daml-extension:dist",
+        "//ledger/sandbox:sandbox-head-tarball",
+        "//navigator/backend:navigator-binary_deploy.jar",
+        "//extractor:extractor-binary_deploy.jar",
+        "sdk.yaml",
+    ],
+    outs = ["head-components.tar.gz"],
+    cmd = '''
     OUT="head-components"
     mkdir -p $${OUT}
     chmod +x $$OUT
@@ -61,20 +61,17 @@ genrule(
     # tar everything up
     tar czf $@ $${OUT}
   ''',
-  visibility = ['//visibility:public']
+    visibility = ["//visibility:public"],
 )
 
- # create a tarball containing a home directory setup for testing the sdk
+# create a tarball containing a home directory setup for testing the sdk
 genrule(
-  name = 'test_home_tarball',
-  outs = ['test_home.tar.gz'],
-  srcs = [
-   ':head-components-tarball',
-  ],
-  tools = [
-   '//da-assistant:da',
-  ],
-  cmd = '''
+    name = "test_home_tarball",
+    srcs = [
+        ":head-components-tarball",
+    ],
+    outs = ["test_home.tar.gz"],
+    cmd = '''
     # Set up an alternative home directory
     TEST_HOME="test_home"
     PACKAGES_DIR="$$TEST_HOME/.da/packages"
@@ -98,26 +95,29 @@ EOF
 
     tar czf $@ $$TEST_HOME
     '''.format(version = "0.0.0"),
+    tools = [
+        "//da-assistant:da",
+    ],
 )
 
 # Test the sdk. The browserstack credentials need to be specified on the command line via bazel
 # //sdk/releases:test_release.sh --test-arg=<user> --test-arg=<pass>
 sh_test(
- name = 'tests',
- srcs = ['//sdk/releases:test.sh'],
- data = [
-  ':test_home_tarball',
-  '//da-assistant:da',
-  '//navigator/integration-test:navigatortest-jar.jar',
-  '@bazel_tools//tools/jdk:current_java_runtime'
- ],
- toolchains = ["@bazel_tools//tools/jdk:current_java_runtime"],
- args = [
-   '$(location :test_home_tarball)',
-   "0.0.0",
-   '$(location //da-assistant:da)',
-   '$(JAVABASE)/bin/jar',
-   '$(location //navigator/integration-test:navigatortest-jar.jar)'
- ],
- timeout = "long",
+    name = "tests",
+    timeout = "long",
+    srcs = ["//sdk/releases:test.sh"],
+    args = [
+        "$(location :test_home_tarball)",
+        "0.0.0",
+        "$(location //da-assistant:da)",
+        "$(JAVABASE)/bin/jar",
+        "$(location //navigator/integration-test:navigatortest-jar.jar)",
+    ],
+    data = [
+        ":test_home_tarball",
+        "//da-assistant:da",
+        "//navigator/integration-test:navigatortest-jar.jar",
+        "@bazel_tools//tools/jdk:current_java_runtime",
+    ],
+    toolchains = ["@bazel_tools//tools/jdk:current_java_runtime"],
 )