107 lines
3.8 KiB
Nix
107 lines
3.8 KiB
Nix
# generic builder for Cabal packages
|
|
|
|
attrs :
|
|
{
|
|
mkDerivation =
|
|
transform :
|
|
let dtransform =
|
|
self : {
|
|
|
|
# pname should be defined by the client to be the package basename
|
|
# version should be defined by the client to be the package version
|
|
|
|
# fname is the internal full name of the package
|
|
fname = "${self.pname}-${self.version}";
|
|
|
|
# name is the external full name of the package; usually we prefix
|
|
# all packages with haskell- to avoid name clashes for libraries;
|
|
# if that is not desired (for applications), name can be set to
|
|
# fname.
|
|
name = "haskell-${self.pname}-ghc${attrs.ghc.ghc.version}-${self.version}";
|
|
|
|
# the default download location for Cabal packages is Hackage,
|
|
# you still have to specify the checksum
|
|
src = attrs.fetchurl {
|
|
url = "http://hackage.haskell.org/packages/archive/${self.pname}/${self.version}/${self.fname}.tar.gz";
|
|
inherit (self) sha256;
|
|
};
|
|
|
|
# default buildInputs are just ghc, if more buildInputs are required
|
|
# buildInputs can be extended by the client by using extraBuildInputs,
|
|
# but often propagatedBuildInputs is preferable anyway
|
|
buildInputs = [attrs.ghc] ++ self.extraBuildInputs;
|
|
extraBuildInputs = [];
|
|
|
|
# we make sure that propagatedBuildInputs is defined, so that we don't
|
|
# have to check for its existence
|
|
propagatedBuildInputs = [];
|
|
|
|
# library directories that have to be added to the Cabal files
|
|
extraLibDirs = [];
|
|
|
|
# compiles Setup and configures
|
|
configurePhase = ''
|
|
eval "$preConfigure"
|
|
|
|
for i in Setup.hs Setup.lhs; do
|
|
test -f $i && ghc --make $i
|
|
done
|
|
|
|
for p in $propagatedBuildNativeInputs; do
|
|
for d in lib{,64}; do
|
|
if [ -e "$p/$d" ]; then
|
|
extraLibDirs="$extraLibDirs --extra-lib-dir=$p/$d"
|
|
fi
|
|
done
|
|
done
|
|
|
|
./Setup configure --verbose --prefix="$out" $extraLibDirs $configureFlags
|
|
|
|
eval "$postConfigure"
|
|
'';
|
|
|
|
# builds via Cabal
|
|
buildPhase = ''
|
|
eval "$preBuild"
|
|
|
|
./Setup build
|
|
|
|
export GHC_PACKAGE_PATH=$(ghc-packages)
|
|
[ -n "$noHadock" ] || ./Setup haddock
|
|
|
|
eval "$postBuild"
|
|
'';
|
|
|
|
# installs via Cabal; creates a registration file for nix-support
|
|
# so that the package can be used in other Haskell-builds; also
|
|
# adds all propagated build inputs to the user environment packages
|
|
installPhase = ''
|
|
eval "$preInstall"
|
|
|
|
./Setup copy
|
|
|
|
ensureDir $out/bin # necessary to get it added to PATH
|
|
|
|
local confDir=$out/lib/ghc-pkgs/ghc-${attrs.ghc.ghc.version}
|
|
local installedPkgConf=$confDir/${self.fname}.installedconf
|
|
local pkgConf=$confDir/${self.fname}.conf
|
|
ensureDir $confDir
|
|
./Setup register --gen-pkg-config=$pkgConf
|
|
if test -f $pkgConf; then
|
|
echo '[]' > $installedPkgConf
|
|
GHC_PACKAGE_PATH=$installedPkgConf ghc-pkg --global register $pkgConf --force
|
|
fi
|
|
|
|
ensureDir $out/nix-support
|
|
ln -s $out/nix-support/propagated-build-native-inputs $out/nix-support/propagated-user-env-packages
|
|
|
|
eval "$postInstall"
|
|
'';
|
|
|
|
# We inherit stdenv and ghc so that they can be used
|
|
# in Cabal derivations.
|
|
inherit (attrs) stdenv ghc;
|
|
};
|
|
in attrs.stdenv.mkDerivation ((rec { f = dtransform f // transform f; }).f);
|
|
}
|