feat(v1): add module nodejs-package-json

v1/nix/modules/drv-parts/nodejs-package-json/default.nix

@@ -0,0 +1,70 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  l = lib // builtins;
+  cfg = config.nodejs-package-json;
+
+  writers = import ../../../pkgs/writers {
+    inherit lib;
+    inherit
+      (config.deps)
+      bash
+      coreutils
+      gawk
+      path
+      writeScript
+      writeScriptBin
+      ;
+  };
+
+  npmArgs = l.concatStringsSep " " (map (arg: "'${arg}'") cfg.npmArgs);
+in {
+  imports = [
+    ./interface.nix
+    ../nodejs-package-lock
+    ../lock
+  ];
+  config = {
+    deps = {nixpkgs, ...}:
+      l.mapAttrs (_: l.mkDefault) {
+        inherit
+          (nixpkgs)
+          bash
+          coreutils
+          gawk
+          path
+          writeScript
+          writeScriptBin
+          ;
+        inherit (nixpkgs.nodePackages) npm;
+      };
+
+    lock.fields.package-lock.script =
+      writers.writePureShellScript
+      (with config.deps; [
+        coreutils
+        npm
+      ])
+      ''
+        source=${cfg.source}
+
+        pushd $TMPDIR
+
+        cp -r $source/* ./
+        chmod -R +w ./
+        rm -f package-lock.json
+        npm install --package-lock-only ${npmArgs}
+
+        mv package-lock.json $out
+
+        popd
+      '';
+
+    nodejs-package-lock = {
+      packageLockFile = null;
+      packageLock = l.mkForce config.lock.content.package-lock;
+    };
+  };
+}

v1/nix/modules/drv-parts/nodejs-package-json/interface.nix

@@ -0,0 +1,24 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  l = lib // builtins;
+  t = l.types;
+in {
+  imports = [
+    ../nodejs-package-lock/interface.nix
+  ];
+  options.nodejs-package-json = l.mapAttrs (_: l.mkOption) {
+    source = {
+      type = t.either t.path t.package;
+      description = "Source of the package";
+      default = config.mkDerivation.src;
+    };
+    npmArgs = {
+      type = t.listOf t.str;
+      description = "extra arguments to pass to 'npm install'";
+      default = [];
+    };
+  };
+}

v1/nix/modules/drv-parts/nodejs-package-lock/default.nix

@@ -45,6 +45,9 @@ in {
   nodejs-package-lock = {
     inherit dreamLock;
     packageJson = l.fromJSON (l.readFile cfg.packageJsonFile);
-    packageLock = l.fromJSON (l.readFile cfg.packageLockFile);
+    packageLock =
+      if cfg.packageLockFile != null
+      then l.fromJSON (l.readFile cfg.packageLockFile)
+      else lib.mkDefault {};
   };
 }

v1/nix/modules/drvs/prettier-no-lock/default.nix

@@ -0,0 +1,32 @@
+{
+  lib,
+  config,
+  ...
+}: let
+  l = lib // builtins;
+in {
+  imports = [
+    ../../drv-parts/nodejs-package-json
+    ../../drv-parts/nodejs-granular
+  ];
+
+  mkDerivation = {
+    src = config.deps.fetchFromGitHub {
+      owner = "prettier";
+      repo = "prettier";
+      rev = config.version;
+      sha256 = "sha256-gHFzUjTHsEcxTJtFflqSOCthKW4Wa+ypuTeGxodmh0o=";
+    };
+  };
+
+  deps = {nixpkgs, ...}: {
+    inherit
+      (nixpkgs)
+      fetchFromGitHub
+      stdenv
+      ;
+  };
+
+  name = l.mkForce "prettier";
+  version = l.mkForce "2.8.7";
+}