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28 files changed+159−53
since splitsnapshots
unifiedsplit
.buildkite/pipeline.yml+2−2 .github/workflows/binaries.yml+39 .github/workflows/build.sh+7 CHANGELOG.md+8 README.md+18−9 app/Main.hs+10−6 data/examples/declaration/signature/type/infix-promoted-type-constructor-out.hs−1 data/examples/declaration/signature/type/unrelated-out.hs+4 data/examples/declaration/signature/type/unrelated.hs+4 data/examples/declaration/value/function/implicit-params-out.hs+1 data/examples/declaration/value/function/implicit-params.hs+2 data/examples/other/argument-comment-out.hs−1 data/examples/other/cpp/separation-2b-out.hs−1 default.nix+7−10 expected-failures/Agda.txt+1−1 expected-failures/esqueleto.txt+1−1 expected-failures/hlint.txt+11 expected-failures/intero.txt+1−1 expected-failures/pandoc.txt+1−1 expected-failures/postgrest.txt+5 expected-failures/purescript.txt+2−2 expected-failures/tensorflow.txt+7 nix/nixpkgs/default.nix+7−3 ormolu.cabal+4−4 shell.nix+3−1 src/Ormolu/Printer/Meat/Declaration.hs+14−4 src/Ormolu/Printer/Meat/Declaration.hs-boot−1 src/Ormolu/Printer/Meat/Declaration/Value.hs-boot−4
.buildkite/pipeline.yml+2−2
@@ -3,9 +3,9 @@ steps:
33 command: |
44 nix-build --keep-going --no-out-link --argstr ormoluCompiler ghc865
55 timeout: 100
6− - label: Build and test with GHC 8.8.3
6+ - label: Build and test with GHC 8.8.4
77 command: |
8− nix-build --keep-going --no-out-link --argstr ormoluCompiler ghc883
8+ nix-build --keep-going --no-out-link --argstr ormoluCompiler ghc884
99 timeout: 100
1010 - label: Build and test with GHC 8.10.1
1111 command: |
.github/workflows/binaries.ymlnew file+39
@@ -0,0 +1,39 @@
1+name: Build binaries
2+on:
3+ release:
4+ types: [published]
5+jobs:
6+ build:
7+ strategy:
8+ fail-fast: false
9+ matrix:
10+ os: [ubuntu-latest, macOS-latest, windows-latest]
11+ runs-on: ${{ matrix.os }}
12+ steps:
13+ - uses: actions/checkout@v2
14+ - uses: actions/setup-haskell@v1
15+ if: runner.os != 'Linux'
16+ with:
17+ ghc-version: '8.10.1'
18+ cabal-version: '3.2'
19+ - name: Build Linux binary
20+ if: runner.os == 'Linux'
21+ run: |
22+ docker run \
23+ -v $(pwd):/mnt -w /mnt \
24+ utdemir/ghc-musl:v14-ghc8101 \
25+ bash .github/workflows/build.sh
26+ - name: Build ${{ runner.os }} binary
27+ if: runner.os != 'Linux'
28+ shell: bash
29+ run: |
30+ cabal build exe:ormolu
31+ cp $(find dist-newstyle \( -name ormolu -o -name ormolu.exe \) -type f) ormolu
32+ - uses: actions/upload-release-asset@v1
33+ env:
34+ GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
35+ with:
36+ upload_url: ${{ github.event.release.upload_url }}
37+ asset_path: ormolu
38+ asset_name: ormolu-${{ runner.os }}
39+ asset_content_type: application/octet-stream
.github/workflows/build.shnew file+7
@@ -0,0 +1,7 @@
1+set -e
2+
3+cabal update
4+cabal build exe:ormolu --enable-executable-static --ghc-options="-split-sections"
5+
6+cp $(find dist-newstyle -name ormolu -type f) .
7+strip -s ormolu
CHANGELOG.md+8
@@ -1,3 +1,8 @@
1+## Unreleased
2+
3+* Ormolu no longer overwrites already formatted files. [PR
4+ 649](https://github.com/tweag/ormolu/pull/649).
5+
16## Ormolu 0.1.2.0
27
38* Fixed the bug when comments in different styles got glued together after
@@ -6,6 +11,9 @@
611* Added `-i` as a shortcut for `--mode inplace`. [Issue
712 467](https://github.com/tweag/ormolu/issues/467).
813
14+* Improved grouping of top-level declarations. [Issue
15+ 466](https://github.com/tweag/ormolu/issues/466).
16+
917## Ormolu 0.1.1.0
1018
1119* Imports in a import lists are now normalized: duplicate imports are
README.md+18−9
@@ -22,7 +22,7 @@ the following goals in mind:
2222* That formatting style aims to result in minimal diffs while still
2323 remaining very close to “conventional” Haskell formatting people use.
2424* Choose a style compatible with modern dialects of Haskell. As new Haskell
25− extensions enter broad use, we may change the style to accomodate them.
25+ extensions enter broad use, we may change the style to accommodate them.
2626* Idempotence: formatting already formatted code doesn't change it.
2727* Be well-tested and robust to the point that it can be used in large
2828 projects without exposing unfortunate, disappointing bugs here and there.
@@ -130,14 +130,6 @@ independent top-level definitions.
130130 criterion than just being valid Haskell modules.
131131* Various minor idempotence issues, most of them are related to comments.
132132
133−## Editor integration
134−
135−We know of the following editor integrations:
136−
137−* [Emacs][emacs-package]
138−* [VS Code][vs-code-plugin]
139−* vim: [neoformat][neoformat], [vim-ormolu][vim-ormolu]
140−
141133## Running on Hackage
142134
143135It's possible to try Ormolu on arbitrary packages from Hackage. For that
@@ -152,6 +144,22 @@ also contain formatted `.hs` files for inspection and original inputs with
152144`.hs-original` extension (those are with CPP dropped, exactly what is fed
153145into Ormolu).
154146
147+## Editor integration
148+
149+We know of the following editor integrations:
150+
151+* [Emacs][emacs-package]
152+* [VS Code][vs-code-plugin]
153+* vim: [neoformat][neoformat], [vim-ormolu][vim-ormolu]
154+
155+## Arch Linux
156+
157+To install Ormolu on Arch Linux, one can use [the package on AUR][aur]:
158+
159+```console
160+yay -S ormolu
161+```
162+
155163## Contributing
156164
157165See [CONTRIBUTING.md][contributing].
@@ -170,3 +178,4 @@ Copyright © 2018–present Tweag I/O
170178[vs-code-plugin]: https://marketplace.visualstudio.com/items?itemName=sjurmillidahl.ormolu-vscode
171179[vim-ormolu]: https://github.com/sdiehl/vim-ormolu
172180[neoformat]: https://github.com/sbdchd/neoformat
181+[aur]: https://aur.archlinux.org/packages/ormolu
app/Main.hs+10−6
@@ -61,15 +61,19 @@ formatOne mode config = \case
6161 -- 101 is different from all the other exit codes we already use.
6262 exitWith (ExitFailure 101)
6363 Just inputFile -> do
64− r <- ormoluFile config inputFile
64+ originalInput <- TIO.readFile inputFile
65+ formattedInput <- ormoluFile config inputFile
6566 case mode of
6667 Stdout ->
67− TIO.putStr r
68− InPlace ->
69− TIO.writeFile inputFile r
68+ TIO.putStr formattedInput
69+ InPlace -> do
70+ -- Only write when the contents have changed, in order to avoid
71+ -- updating the modified timestamp if the file was already correctly
72+ -- formatted.
73+ when (formattedInput /= originalInput) $
74+ TIO.writeFile inputFile formattedInput
7075 Check -> do
71− r' <- TIO.readFile inputFile
72− when (r /= r') $
76+ when (formattedInput /= originalInput) $
7377 -- 100 is different to all the other exit code that are emitted
7478 -- either from an 'OrmoluException' or from 'error' and
7579 -- 'notImplemented'.
data/examples/declaration/signature/type/infix-promoted-type-constructor-out.hs−1
@@ -1,3 +1,2 @@
11fun1 :: Def ('[Ref s (Stored Uint32), IBool] 'T.:-> IBool)
2−
32fun2 :: Def ('[Ref s (Stored Uint32), IBool] ':-> IBool)
data/examples/declaration/signature/type/unrelated-out.hsnew file+4
@@ -0,0 +1,4 @@
1+clientFunc1 :: SomeType1
2+clientFunc2 :: SomeType2
3+clientFunc3 :: SomeType3
4+clientFunc1 :<|> clientFunc2 :<|> clientFunc3 = hoistClient foo bar baz
data/examples/declaration/signature/type/unrelated.hsnew file+4
@@ -0,0 +1,4 @@
1+clientFunc1 :: SomeType1
2+clientFunc2 :: SomeType2
3+clientFunc3 :: SomeType3
4+clientFunc1 :<|> clientFunc2 :<|> clientFunc3 = hoistClient foo bar baz
data/examples/declaration/value/function/implicit-params-out.hs+1
@@ -1,6 +1,7 @@
11{-# LANGUAGE ImplicitParams #-}
22
33sortBy :: (a -> a -> Bool) -> [a] -> [a]
4+sortBy = undefined
45
56sort :: (?cmp :: a -> a -> Bool) => [a] -> [a]
67sort = sortBy ?cmp
data/examples/declaration/value/function/implicit-params.hs+2
@@ -1,6 +1,8 @@
11{-# LANGUAGE ImplicitParams #-}
22sortBy :: (a -> a -> Bool) -> [a] -> [a]
33
4+sortBy = undefined
5+
46sort :: (?cmp :: a -> a -> Bool) => [a] -> [a]
57sort = sortBy ?cmp
68
data/examples/other/argument-comment-out.hs−1
@@ -9,7 +9,6 @@ foo ::
99 -- | Foo
1010 Int ->
1111 Int
12−
1312foo ::
1413 Foo a =>
1514 -- | Foo
data/examples/other/cpp/separation-2b-out.hs−1
@@ -1,5 +1,4 @@
11ffff, ffffffff :: Natural
2−
32#ifdef HASKELL_ZIP_DEV_MODE
43ffff = 200
54ffffffff = 5000
default.nix+7−10
@@ -1,5 +1,6 @@
1−{ pkgs ? (import ./nix/nixpkgs)
2−, ormoluCompiler ? "ghc883" # the shell doesn't work with ghc8101 yet
1+{ pkgs ? (import ./nix/nixpkgs { inherit system; })
2+, system ? builtins.currentSystem
3+, ormoluCompiler ? "ghc884" # the shell doesn't work with ghc8101 yet
34}:
45
56let
@@ -16,12 +17,6 @@ let
1617 };
1718 ormoluOverlay = self: super: {
1819 "ormolu" = super.callCabal2nixWithOptions "ormolu" source "-fdev" { };
19− "ghc-lib-parser" = pkgs.haskell.lib.dontHaddock
20− (super.callHackageDirect {
21− pkg = "ghc-lib-parser";
22− ver = "8.10.1.20200412";
23− sha256 = "sha256-EjMzp8xRT3xVFKDI1fAfopkylGB0hv35Av2+uZeETRU=";
24− } {});
2520 };
2621 ormolize = import ./nix/ormolize {
2722 inherit pkgs;
@@ -33,14 +28,16 @@ let
3328 "distributed-process"
3429 "esqueleto"
3530 "fay"
31+ "hlint"
3632 "idris"
3733 "intero"
3834 "leksah"
39− "lens"
4035 "pandoc"
4136 "pipes"
37+ "postgrest"
4238 "purescript"
43− ];
39+ "tensorflow"
40+ ] ++ (if ormoluCompiler == "ghc8101" then [] else ["lens"]);
4441 ormolizedPackages = doCheck:
4542 pkgs.lib.mapAttrs (name: p: ormolize {
4643 package = p;
expected-failures/Agda.txt+1−1
@@ -1,5 +1,5 @@
11Formatting is not idempotent:
2− dist/build/Agda/Syntax/Parser/Lexer.hs<rendered>:1597:17
2+ dist/build/Agda/Syntax/Parser/Lexer.hs<rendered>:1602:17
33 before: " = (check_ac"
44 after: " =\n "
55Please, consider reporting the bug.
expected-failures/esqueleto.txt+1−1
@@ -3,5 +3,5 @@ The GHC parser (in Haddock mode) failed:
33 lexical error in string/character literal at character 's'
44
55The GHC parser (in Haddock mode) failed:
6− test/PostgreSQL/Test.hs:510:9-41
6+ test/PostgreSQL/Test.hs:562:9-41
77 parse error on input `-- | Check the result is not null'
expected-failures/hlint.txtnew file+11
@@ -0,0 +1,11 @@
1+Formatting is not idempotent:
2+ src/Extension.hs<rendered>:19:22
3+ before: "DoRec , -} Recursive"
4+ after: "DoRec , -}\n "
5+Please, consider reporting the bug.
6+
7+Formatting is not idempotent:
8+ src/Hint/Bracket.hs<rendered>:249:50
9+ before: "\" x y [r]) {ideaSpan"
10+ after: "\" x y [r])\n "
11+Please, consider reporting the bug.
expected-failures/intero.txt+1−1
@@ -1,5 +1,5 @@
11Formatting is not idempotent:
2− src/InteractiveUI.hs<rendered>:3757:33
2+ src/InteractiveUI.hs<rendered>:3748:33
33 before: "text \"Try\" <+> doWha"
44 after: "text \"Try\"\n "
55Please, consider reporting the bug.
expected-failures/pandoc.txt+1−1
@@ -3,7 +3,7 @@ The GHC parser (in Haddock mode) failed:
33 parse error on input `import'
44
55Formatting is not idempotent:
6− src/Text/Pandoc/Readers/Vimwiki.hs<rendered>:615:19
6+ src/Text/Pandoc/Readers/Vimwiki.hs<rendered>:613:19
77 before: ".softbreak <$ endlin"
88 after: ".softbreak\n <$ en"
99Please, consider reporting the bug.
expected-failures/postgrest.txtnew file+5
@@ -0,0 +1,5 @@
1+Formatting is not idempotent:
2+ src/PostgREST/DbRequestBuilder.hs<rendered>:149:24
3+ before: " || -- clients"
4+ after: " || ( origin ="
5+Please, consider reporting the bug.
expected-failures/purescript.txt+2−2
@@ -1,10 +1,10 @@
11The GHC parser (in Haddock mode) failed:
2− src/Language/PureScript/AST/Declarations.hs:478:1-17
2+ src/Language/PureScript/AST/Declarations.hs:479:1-17
33 Invalid type signature: pattern ValueDecl :: ...
44Perhaps you meant to use PatternSynonyms?
55
66The GHC parser (in Haddock mode) failed:
7− src/Language/PureScript/AST/SourcePos.hs:101:1-22
7+ src/Language/PureScript/AST/SourcePos.hs:99:1-22
88 Invalid type signature: pattern NullSourceSpan :: ...
99Perhaps you meant to use PatternSynonyms?
1010
expected-failures/tensorflow.txtnew file+7
@@ -0,0 +1,7 @@
1+The GHC parser (in Haddock mode) failed:
2+ tensorflow-mnist/app/Main.hs:50:13-14
3+ parse error on input `->'
4+
5+The GHC parser (in Haddock mode) failed:
6+ tensorflow-ops/tests/RegressionTest.hs:3:1-6
7+ parse error on input `import'
nix/nixpkgs/default.nix+7−3
@@ -1,9 +1,13 @@
1+{ system ? builtins.currentSystem }:
12let
2− rev = "807ca93fadd5197c2260490de0c76e500562dc05";
3− sha256 = "10yq8bnls77fh3pk5chkkb1sv5lbdgyk1rr2v9xn71rr1k2x563p";
3+ rev = "32b46dd897ab2143a609988a04d87452f0bbef59";
4+ sha256 = "1gzfrpjnr1bz9zljsyg3a4zrhk8r927sz761mrgcg56dwinkhpjk";
45 nixpkgs = builtins.fetchTarball {
56 url = "https://github.com/NixOS/nixpkgs/archive/${rev}.tar.gz";
67 inherit sha256;
78 };
8− pkgs = import nixpkgs { config.allowUnfree = true; };
9+ pkgs = import nixpkgs {
10+ inherit system;
11+ config.allowUnfree = true;
12+ };
913in pkgs
ormolu.cabal+4−4
@@ -1,10 +1,10 @@
11cabal-version: 1.18
22name: ormolu
3−version: 0.1.1.0
3+version: 0.1.2.0
44license: BSD3
55license-file: LICENSE.md
66maintainer: Mark Karpov <mark.karpov@tweag.io>
7−tested-with: ghc ==8.6.5 ghc ==8.8.3 ghc ==8.10.1
7+tested-with: ghc ==8.6.5 ghc ==8.8.4 ghc ==8.10.1
88homepage: https://github.com/tweag/ormolu
99bug-reports: https://github.com/tweag/ormolu/issues
1010synopsis: A formatter for Haskell source code
@@ -119,7 +119,7 @@ library
119119 base >=4.12 && <5.0,
120120 bytestring >=0.2 && <0.11,
121121 containers >=0.5 && <0.7,
122− dlist >=0.8 && <0.9,
122+ dlist >=0.8 && <2.0,
123123 exceptions >=0.6 && <0.11,
124124 ghc-lib-parser >=8.10 && <8.11,
125125 mtl >=2.0 && <3.0,
@@ -144,7 +144,7 @@ executable ormolu
144144 base >=4.12 && <5.0,
145145 ghc-lib-parser >=8.10 && <8.11,
146146 gitrev >=1.3 && <1.4,
147− optparse-applicative >=0.14 && <0.16,
147+ optparse-applicative >=0.14 && <0.17,
148148 ormolu -any,
149149 text >=0.2 && <1.3
150150
shell.nix+3−1
@@ -1,3 +1,5 @@
1−{ pkgs ? (import ./nix/nixpkgs) }:
1+{ pkgs ? (import ./nix/nixpkgs { inherit system; })
2+, system ? builtins.currentSystem
3+}:
24
35(import ./default.nix { inherit pkgs; }).dev.ormoluShell
src/Ormolu/Printer/Meat/Declaration.hs+14−4
@@ -85,9 +85,6 @@ isDocumented = any (isHaddock . unLoc)
8585 isHaddock _ = False
8686
8787-- | Group relevant declarations together.
88−--
89−-- Add a declaration to a group iff it is relevant to either the first or
90−-- the preceding declaration in the group.
9188groupDecls :: [LHsDecl GhcPs] -> [NonEmpty (LHsDecl GhcPs)]
9289groupDecls [] = []
9390groupDecls (l@(L _ DocNext) : xs) =
@@ -100,7 +97,8 @@ groupDecls (header : xs) =
10097 let (grp, rest) = flip span (zip (header : xs) xs) $ \(previous, current) ->
10198 let relevantToHdr = groupedDecls header current
10299 relevantToPrev = groupedDecls previous current
103− in relevantToHdr || relevantToPrev
100+ isDeclSeries = declSeries previous current
101+ in isDeclSeries || relevantToHdr || relevantToPrev
104102 in (header :| map snd grp) : groupDecls (map snd rest)
105103
106104p_hsDecl :: FamilyStyle -> HsDecl GhcPs -> R ()
@@ -197,6 +195,18 @@ groupedDecls (L l_x x') (L l_y y') =
197195 (_, DocPrev) -> True
198196 _ -> False
199197
198+-- | Detect declaration series that should not have blanks between them.
199+declSeries ::
200+ LHsDecl GhcPs ->
201+ LHsDecl GhcPs ->
202+ Bool
203+declSeries (L _ x) (L _ y) =
204+ case (x, y) of
205+ ( SigD NoExtField (TypeSig NoExtField _ _),
206+ SigD NoExtField (TypeSig NoExtField _ _)
207+ ) -> True
208+ _ -> False
209+
200210intersects :: Ord a => [a] -> [a] -> Bool
201211intersects a b = go (sort a) (sort b)
202212 where
src/Ormolu/Printer/Meat/Declaration.hs-boot−1
@@ -9,5 +9,4 @@ import Ormolu.Printer.Combinators
99import Ormolu.Printer.Meat.Common
1010
1111p_hsDecls :: FamilyStyle -> [LHsDecl GhcPs] -> R ()
12−
1312p_hsDeclsRespectGrouping :: FamilyStyle -> [LHsDecl GhcPs] -> R ()
src/Ormolu/Printer/Meat/Declaration/Value.hs-boot−4
@@ -11,11 +11,7 @@ import GHC
1111import Ormolu.Printer.Combinators
1212
1313p_valDecl :: HsBindLR GhcPs GhcPs -> R ()
14−
1514p_pat :: Pat GhcPs -> R ()
16−
1715p_hsExpr :: HsExpr GhcPs -> R ()
18−
1916p_hsSplice :: HsSplice GhcPs -> R ()
20−
2117p_stringLit :: String -> R ()