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https://github.com/ilyakooo0/ormolu.git
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2c5472944b
GHC 8.10.1 comes with some changes to the AST, which works great for Ormolu, but causes this commit to be a bit large: * Trees That Grow extension points for new constructors are now statically proven to be uninhabited, via noExtCon :: NoExtCon -> a. Thanks to this change I got rid of many notImplemented calls. * LPat constructor is now a lot more usable, so we don't need to use the locatedPat combinator and can remove some boilerplate code. Also it comes with ImportQualifiedPost and StandaloneKindSignatures we should support. I did not implement them in this commit, they'll be merged in later on. It causes one behaviour change, where the ordering of qualified and non-qualified imports of the same module is changed. This is due to our usage of gcompare resulting a different ordering because of the AST change caused by the ImportQualifiedPost extension. I think this is acceptable and we shouldn't try to keep backwards compatibility there. Another behaviour change is that previously HsExpr had a few extra constructors for arrows and patterns used in expression context. Those programs were syntactically incorrect, but refused on a later stage. But we nonetheless formatted those constructs so Ormolu didn't fail there while keeping the source code intact. However, now those constructors are removed, so Ormolu fails with a parse error in this case (same as GHC). I also removed some tests exhibiting this behaviour.
123 lines
2.9 KiB
Nix
123 lines
2.9 KiB
Nix
{ pkgs ? (import ./nix/nixpkgs) }:
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let
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ormoluCompiler = "ghc865";
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source = pkgs.lib.sourceByRegex ./. [
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"^.*\.md$"
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"^app.*$"
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"^data.*$"
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"^ormolu\.cabal$"
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"^src.*$"
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"^tests.*$"
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];
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haskellPackages = pkgs.haskell.packages.${ormoluCompiler}.override {
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overrides = ormoluOverlay;
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};
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ormoluOverlay = self: super: {
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"ormolu" = pkgs.haskell.lib.enableCabalFlag
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(super.callCabal2nix "ormolu" source { }) "dev";
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# Nixpkgs provides ghc-lib-parser-8.8.0.20190424, but we want
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# ghc-lib-parser-8.10.1. We disable Haddock generation because it's way
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# too slow.
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"ghc-lib-parser" = pkgs.haskell.lib.dontHaddock
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(super.callHackageDirect {
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pkg = "ghc-lib-parser";
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ver = "8.10.1.20200324";
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sha256 = "0f2c68fzdj2lw6da2zpx7a0cx631im3kylwd85dzx1npsm1vzlbg";
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} {});
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};
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ormolize = import ./nix/ormolize {
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inherit pkgs;
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inherit haskellPackages;
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};
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# NOTE We have to exclude some directories for some packages because
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# Ormolu needs files to be parsable by Haddock which is not always the
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# case. For example some tests and examples do not parse.
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excludedHackageDirs = {
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"aws" = ["Examples"];
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"distributed-process" = ["benchmarks"];
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"esqueleto" = ["test"];
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"fay" = ["examples"];
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"postgrest" = ["test"];
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};
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ormolizedPackages = doCheck:
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pkgs.lib.mapAttrs (name: p: ormolize {
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package = p;
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inherit doCheck;
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excludedDirs =
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if builtins.hasAttr name excludedHackageDirs
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then excludedHackageDirs.${name}
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else [];
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}) haskellPackages;
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in {
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ormolu = haskellPackages.ormolu;
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ormoluShell = haskellPackages.shellFor {
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packages = ps: [
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ps.ormolu
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];
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buildInputs = [
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haskellPackages.cabal-install
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haskellPackages.ghcid
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];
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};
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withOrmolu = haskellPackages.shellFor {
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packages = ps: [];
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buildInputs = [
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haskellPackages.ormolu
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];
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};
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inherit ormoluOverlay ormoluCompiler;
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hackage = ormolizedPackages false;
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hackageTests = with pkgs.lib; pkgs.recurseIntoAttrs (
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let ps = [
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"QuickCheck"
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"ShellCheck"
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"aeson"
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"attoparsec"
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"aws"
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"capability"
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"cassava"
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"conduit"
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"cryptonite"
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"diagrams-core"
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"distributed-process"
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"esqueleto"
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"fay"
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"hakyll"
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"haxl"
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"hedgehog"
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"hlint"
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"megaparsec"
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"ormolu"
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"optics"
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"postgrest"
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"servant"
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"servant-server"
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"tensorflow"
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"text_1_2_4_0"
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"tls"
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"yesod-core"
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# Comment idempotence issue
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# "Agda"
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# "brick"
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# "hledger"
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# "http-client"
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# "idris"
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# "intero"
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# "leksah"
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# "pandoc"
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# "pipes"
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# "stack"
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# Missing language extension
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# "lens" #fixed in master
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# "purescript"
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];
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in listToAttrs (map (p: nameValuePair p (ormolizedPackages true).${p}) ps)
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);
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}
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