default.nix

   1 { pkgs ? import <nixpkgs> {}
   2 , ghc ? null # "ghc8102"
   3 , withHoogle ? false
   4 }:
   5 let
   6   haskellPackages =
   7     if ghc == null
   8     then pkgs.haskellPackages
   9     else pkgs.haskell.packages.${ghc};
  10   hs = haskellPackages.extend (with pkgs.haskell.lib;
  11     hself: hsuper: {
  12       /*
  13       mkDerivation = drv: hsuper.mkDerivation (
  14         # There is no much cache for other ghc,
  15         # hence build as little as possible.
  16         drv // pkgs.lib.optionalAttrs (ghc != null) {
  17           enableLibraryProfiling = false;
  18           doHaddock = false;
  19           doBenchmark = false;
  20           doCoverage = false;
  21           doHoogle = false;
  22           #doCheck = false;
  23           # Enable check here so that symantic-parser.getCabalDeps contains testHaskellDepends,
  24           # which are needed in the shell to run:
  25           # cabal repl --enable-tests symantic-parser-test
  26           # Wrapping symantic-parser in a doCheck (hence using overrideCabal) would not work.
  27           # And I have no idea why the version suffix must also be included.
  28           doCheck = builtins.match "symantic-parser.*" drv.pname != null;
  29         }
  30       );
  31       */
  32       /*
  33       symantic-base = hself.callCabal2nix "symantic-base" (pkgs.fetchgit {
  34         url = "git://git.sourcephile.fr/haskell/symantic-base";
  35         sha256 = "sha256-I636Kl+S93BDX1xrEMQdf217pLeT6FeF4BBpj83sEgQ=";
  36       }) {};
  37       */
  38       symantic-parser = enableExecutableProfiling (doCheck (
  39         hself.callCabal2nix "symantic-parser" ./. {}));
  40     } //
  41     packageSourceOverrides {
  42       # symantic-parser = ./.;
  43     } hself hsuper
  44   );
  45 in hs.symantic-parser // {
  46   shell = hs.shellFor {
  47     packages = p: [ p.symantic-parser ];
  48     nativeBuildInputs = [
  49       hs.cabal-install
  50       hs.haskell-language-server
  51       hs.hpc
  52     ];
  53     buildInputs = [
  54       #hs.ghcid
  55       #hs.ormolu
  56       hs.hlint
  57       #pkgs.nixpkgs-fmt
  58     ];
  59     inherit withHoogle;
  60   };
  61 }