haskellPackages.shellFor: Clean and fixup
- Now correctly sets NIX_GHC* env vars
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@ -259,20 +259,46 @@ in package-set { inherit pkgs stdenv callPackage; } self // {
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shellFor = { packages, withHoogle ? false, ... } @ args:
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let
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selected = packages self;
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packageInputs = builtins.map getBuildInputs selected;
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haskellInputs =
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builtins.filter
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(input: pkgs.lib.all (p: input.outPath != p.outPath) selected)
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(pkgs.lib.concatMap (p: p.haskellBuildInputs) packageInputs);
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packageInputs = map getBuildInputs selected;
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name = if pkgs.lib.length selected == 1
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then "ghc-shell-for-${(pkgs.lib.head selected).name}"
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else "ghc-shell-for-packages";
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# If `packages = [ a b ]` and `a` depends on `b`, don't build `b`,
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# because cabal will end up ignoring that built version, assuming
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# new-style commands.
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haskellInputs = pkgs.lib.filter
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(input: pkgs.lib.all (p: input.outPath != p.outPath) selected)
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(pkgs.lib.concatMap (p: p.haskellBuildInputs) packageInputs);
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systemInputs = pkgs.lib.concatMap (p: p.systemBuildInputs) packageInputs;
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withPackages = if withHoogle then self.ghcWithHoogle else self.ghcWithPackages;
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ghcEnv = withPackages (p: haskellInputs);
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nativeBuildInputs = pkgs.lib.concatMap (p: p.nativeBuildInputs) selected;
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ghcCommand' = if ghc.isGhcjs or false then "ghcjs" else "ghc";
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ghcCommand = "${ghc.targetPrefix}${ghcCommand'}";
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ghcCommandCaps= pkgs.lib.toUpper ghcCommand';
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mkDrvArgs = builtins.removeAttrs args ["packages" "withHoogle"];
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in pkgs.stdenv.mkDerivation (mkDrvArgs // {
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name = "ghc-shell-for-packages";
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nativeBuildInputs = [(withPackages (_: haskellInputs))] ++ mkDrvArgs.nativeBuildInputs or [];
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name = mkDrvArgs.name or name;
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buildInputs = systemInputs ++ mkDrvArgs.buildInputs or [];
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nativeBuildInputs = [ ghcEnv ] ++ nativeBuildInputs ++ mkDrvArgs.nativeBuildInputs or [];
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phases = ["installPhase"];
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installPhase = "echo $nativeBuildInputs $buildInputs > $out";
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LANG = "en_US.UTF-8";
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LOCALE_ARCHIVE = pkgs.lib.optionalString (stdenv.hostPlatform.libc == "glibc") "${buildPackages.glibcLocales}/lib/locale/locale-archive";
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"NIX_${ghcCommandCaps}" = "${ghcEnv}/bin/${ghcCommand}";
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"NIX_${ghcCommandCaps}PKG" = "${ghcEnv}/bin/${ghcCommand}-pkg";
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# TODO: is this still valid?
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"NIX_${ghcCommandCaps}_DOCDIR" = "${ghcEnv}/share/doc/ghc/html";
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"NIX_${ghcCommandCaps}_LIBDIR" = if ghc.isHaLVM or false
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then "${ghcEnv}/lib/HaLVM-${ghc.version}"
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else "${ghcEnv}/lib/${ghcCommand}-${ghc.version}";
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});
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ghc = ghc // {
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