pkgs/haskell-modules: expose haddockDir as passthru variable

WIP

If the `hoogle.nix` file wants to have any sane chance of finding haddock
outputs, the packages need to export the haddock folders as an identifier.

A few TODOs still stand, like passing self to the package instead of needing to
pass it to `haddockDir`. Maybe the exported identifier should be integrated into
the fixpoint somehow instead of using `passthru`?
This commit is contained in:
Profpatsch 2017-08-06 21:48:22 +02:00
parent 3f27a36912
commit e9e25ec5fe

View File

@ -79,6 +79,9 @@ let
then "package-db"
else "package-conf";
# the target dir for haddock documentation
docdir = docoutput: docoutput + "/share/doc";
newCabalFileUrl = "http://hackage.haskell.org/package/${pname}-${version}/revision/${revision}.cabal";
newCabalFile = fetchurl {
url = newCabalFileUrl;
@ -112,7 +115,7 @@ let
defaultConfigureFlags = [
"--verbose" "--prefix=$out" "--libdir=\\$prefix/lib/\\$compiler" "--libsubdir=\\$pkgid"
(optionalString enableSeparateDataOutput "--datadir=$data/share/${ghc.name}")
(optionalString enableSeparateDocOutput "--docdir=$doc/share/doc")
(optionalString enableSeparateDocOutput "--docdir=${docdir "$doc"}")
"--with-gcc=$CC" # Clang won't work without that extra information.
"--package-db=$packageConfDir"
(optionalString (enableSharedExecutables && stdenv.isLinux) "--ghc-option=-optl=-Wl,-rpath=$out/lib/${ghc.name}/${pname}-${version}")
@ -332,7 +335,7 @@ stdenv.mkDerivation ({
''}
${optionalString enableSeparateDocOutput ''
for x in $doc/share/doc/html/src/*.html; do
for x in ${docdir "$doc"}/html/src/*.html; do
remove-references-to -t $out $x
done
mkdir -p $doc
@ -348,6 +351,14 @@ stdenv.mkDerivation ({
isHaskellLibrary = hasActiveLibrary;
# TODO: ask why the split outputs are configurable at all?
# TODO: include tests for split if possible
# Given the haskell package, returns
# the directory containing the haddock documentation.
# `null' if no haddock documentation was built.
# TODO: fetch the self from the fixpoint instead
haddockDir = self: if doHaddock then "${docdir self.doc}/html" else null;
env = stdenv.mkDerivation {
name = "interactive-${pname}-${version}-environment";
nativeBuildInputs = [ ghcEnv systemBuildInputs ]
@ -357,6 +368,7 @@ stdenv.mkDerivation ({
shellHook = ''
export NIX_${ghcCommandCaps}="${ghcEnv}/bin/${ghcCommand}"
export NIX_${ghcCommandCaps}PKG="${ghcEnv}/bin/${ghcCommand}-pkg"
# TODO: is this still valid?
export NIX_${ghcCommandCaps}_DOCDIR="${ghcEnv}/share/doc/ghc/html"
export LD_LIBRARY_PATH="''${LD_LIBRARY_PATH:+''${LD_LIBRARY_PATH}:}${
makeLibraryPath (filter (x: !isNull x) systemBuildInputs)