forked from mirrors/nixpkgs
2862d272a6
The function "callHackage <name> <version>" generates build instructions for
the requested library version on-the-fly. All of Hackage is available. Note:
this code is brand-new, experimental, and it might change in the future. Don't
base production code on this feature yet.
Example usage:
$ nix-shell -p 'haskellPackages.callHackage "cpphs" "1.19.3" {}' --run "cpphs --version"
cpphs 1.19.3
$ nix-shell -p 'haskellPackages.ghcWithPackages (self: [(self.callHackage "hsdns" "1.6.1" {})])' --run "ghc-pkg list hsdns"
/nix/store/p6r81k2vb2pzy4wcvri6z9m492i0hg63-ghc-8.0.1/lib/ghc-8.0.1/package.conf.d
hsdns-1.6.1
88 lines
2.7 KiB
Nix
88 lines
2.7 KiB
Nix
{ pkgs, stdenv, ghc
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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;
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inherit (import ./lib.nix { inherit pkgs; }) hackage2nix;
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haskellPackages = self:
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let
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mkDerivation = 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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inherit (self) ghc jailbreak-cabal;
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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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overrideCabal = drv: f: drv.override (args: args // {
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mkDerivation = drv: args.mkDerivation (drv // f drv);
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});
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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.gnome // 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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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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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 { inherit packages; };
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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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in
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fix'
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(extends overrides
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(extends packageSetConfig
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(extends compilerConfig
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(extends commonConfiguration haskellPackages))))
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