124 lines
4.5 KiB
Nix
124 lines
4.5 KiB
Nix
{ pkgs, stdenv, ghc, all-cabal-hashes
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, compilerConfig ? (self: super: {})
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, packageSetConfig ? (self: super: {})
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, overrides ? (self: super: {})
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}:
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let
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inherit (stdenv.lib) fix' extends makeOverridable makeExtensible;
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inherit (import ./lib.nix { inherit pkgs; }) overrideCabal;
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haskellPackages = self:
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let
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mkDerivationImpl = pkgs.callPackage ./generic-builder.nix {
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inherit stdenv;
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inherit (pkgs) fetchurl pkgconfig glibcLocales coreutils gnugrep gnused;
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jailbreak-cabal = if (self.ghc.cross or null) != null
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then self.ghc.bootPkgs.jailbreak-cabal
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else self.jailbreak-cabal;
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inherit (self) ghc;
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hscolour = overrideCabal self.hscolour (drv: {
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isLibrary = false;
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doHaddock = false;
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hyperlinkSource = false; # Avoid depending on hscolour for this build.
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postFixup = "rm -rf $out/lib $out/share $out/nix-support";
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});
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cpphs = overrideCabal (self.cpphs.overrideScope (self: super: {
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mkDerivation = drv: super.mkDerivation (drv // {
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enableSharedExecutables = false;
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enableSharedLibraries = false;
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doHaddock = false;
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useCpphs = false;
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});
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})) (drv: {
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isLibrary = false;
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postFixup = "rm -rf $out/lib $out/share $out/nix-support";
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});
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};
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mkDerivation = makeOverridable mkDerivationImpl;
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callPackageWithScope = scope: drv: args: (stdenv.lib.callPackageWith scope drv args) // {
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overrideScope = f: callPackageWithScope (mkScope (fix' (extends f scope.__unfix__))) drv args;
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};
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mkScope = scope: pkgs // pkgs.xorg // pkgs.gnome2 // scope;
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defaultScope = mkScope self;
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callPackage = drv: args: callPackageWithScope defaultScope drv args;
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withPackages = packages: callPackage ./with-packages-wrapper.nix {
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inherit (self) llvmPackages;
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haskellPackages = self;
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inherit packages;
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};
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haskellSrc2nix = { name, src, sha256 ? null }:
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let
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sha256Arg = if isNull sha256 then "--sha256=" else ''--sha256="${sha256}"'';
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in pkgs.stdenv.mkDerivation {
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name = "cabal2nix-${name}";
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buildInputs = [ pkgs.cabal2nix ];
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phases = ["installPhase"];
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LANG = "en_US.UTF-8";
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LOCALE_ARCHIVE = pkgs.lib.optionalString pkgs.stdenv.isLinux "${pkgs.glibcLocales}/lib/locale/locale-archive";
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installPhase = ''
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export HOME="$TMP"
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mkdir -p "$out"
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cabal2nix --compiler=${self.ghc.name} --system=${stdenv.system} ${sha256Arg} "${src}" > "$out/default.nix"
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'';
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};
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hackage2nix = name: version: haskellSrc2nix {
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name = "${name}-${version}";
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sha256 = ''$(sed -e 's/.*"SHA256":"//' -e 's/".*$//' "${all-cabal-hashes}/${name}/${version}/${name}.json")'';
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src = "${all-cabal-hashes}/${name}/${version}/${name}.cabal";
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};
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in
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import ./hackage-packages.nix { inherit pkgs stdenv callPackage; } self // {
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inherit mkDerivation callPackage;
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callHackage = name: version: self.callPackage (hackage2nix name version);
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# Creates a Haskell package from a source package by calling cabal2nix on the source.
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callCabal2nix = name: src: args:
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let
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# Filter out files other than the cabal file. This ensures
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# that we don't create new derivations even when the cabal
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# file hasn't changed.
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justCabal = builtins.filterSource (path: type: pkgs.lib.hasSuffix ".cabal" path) src;
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drv = self.callPackage (haskellSrc2nix { inherit name; src = justCabal; }) args;
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in overrideCabal drv (drv': { inherit src; }); # Restore the desired src.
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ghcWithPackages = selectFrom: withPackages (selectFrom self);
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ghcWithHoogle = selectFrom:
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let
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packages = selectFrom self;
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hoogle = callPackage ./hoogle.nix {
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inherit packages;
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};
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in withPackages (packages ++ [ hoogle ]);
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ghc = ghc // {
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withPackages = self.ghcWithPackages;
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withHoogle = self.ghcWithHoogle;
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};
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};
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commonConfiguration = import ./configuration-common.nix { inherit pkgs; };
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nixConfiguration = import ./configuration-nix.nix { inherit pkgs; };
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in
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makeExtensible
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(extends overrides
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(extends packageSetConfig
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(extends compilerConfig
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(extends commonConfiguration
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(extends nixConfiguration haskellPackages)))))
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