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126 lines
3.5 KiB
Nix
126 lines
3.5 KiB
Nix
# Install not only the Hoogle library and executable, but also a local Hoogle
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# database which provides "Source" links to all specified 'packages' -- or the
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# current Haskell Platform if no custom package set is provided.
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#
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# It is intended to be used in config.nix similarly to:
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#
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# { packageOverrides = pkgs: rec {
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#
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# haskellPackages =
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# let callPackage = pkgs.lib.callPackageWith haskellPackages;
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# in pkgs.recurseIntoAttrs (pkgs.haskellPackages.override {
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# extension = self: super: {
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# hoogleLocal = pkgs.haskellPackages.hoogleLocal.override {
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# packages = with pkgs.haskellPackages; [
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# mmorph
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# monadControl
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# ];
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# };
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# };
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# });
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# }}
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#
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# This will build mmorph and monadControl, and have the hoogle installation
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# refer to their documentation via symlink so they are not garbage collected.
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{ lib, stdenv, hoogle, rehoo
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, ghc, packages ? [ ghc.ghc ]
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}:
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let
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inherit (stdenv.lib) optional;
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wrapper = ./hoogle-local-wrapper.sh;
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in
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stdenv.mkDerivation {
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name = "hoogle-local-0.1";
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buildInputs = [hoogle rehoo];
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phases = [ "buildPhase" ];
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docPackages = (lib.closePropagation packages);
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buildPhase = ''
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if [ -z "$docPackages" ]; then
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echo "ERROR: The packages attribute has not been set"
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exit 1
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fi
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mkdir -p $out/share/doc/hoogle
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function import_dbs() {
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find $1 -name '*.txt' | while read f; do
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newname=$(basename "$f" | tr '[:upper:]' '[:lower:]')
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if [[ -f $f && ! -f ./$newname ]]; then
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cp -p $f "./$newname"
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hoogle convert -d "$(dirname $f)" "./$newname"
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fi
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done
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}
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echo importing builtin packages
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for docdir in ${ghc}/share/doc/ghc*/html/libraries/*; do
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if [[ -d $docdir ]]; then
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import_dbs $docdir
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ln -sfn $docdir $out/share/doc/hoogle
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fi
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done
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echo importing other packages
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for i in $docPackages; do
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if [[ ! $i == $out ]]; then
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for docdir in $i/share/doc/*-ghc-*/* $i/share/doc/*; do
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name=`basename $docdir`
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docdir=$docdir/html
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if [[ -d $docdir ]]; then
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import_dbs $docdir
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ln -sfn $docdir $out/share/doc/hoogle/$name
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fi
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done
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fi
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done
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echo building hoogle database
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# FIXME: rehoo is marked as depricated on Hackage
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chmod 644 *.hoo *.txt
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rehoo -j$NIX_BUILD_CORES -c64 .
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mv default.hoo .x
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rm -fr downloads *.dep *.txt *.hoo
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mv .x $out/share/doc/hoogle/default.hoo
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echo building haddock index
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# adapted from GHC's gen_contents_index
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cd $out/share/doc/hoogle
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args=
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for hdfile in `ls -1 */*.haddock | grep -v '/ghc\.haddock' | sort`
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do
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name_version=`echo "$hdfile" | sed 's#/.*##'`
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args="$args --read-interface=$name_version,$hdfile"
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done
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${ghc}/bin/haddock --gen-index --gen-contents -o . \
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-t "Haskell Hierarchical Libraries" \
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-p ${ghc}/share/doc/ghc*/html/libraries/prologue.txt \
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$args
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echo finishing up
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mkdir -p $out/bin
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substitute ${wrapper} $out/bin/hoogle \
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--subst-var out --subst-var-by shell ${stdenv.shell} \
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--subst-var-by hoogle ${hoogle}
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chmod +x $out/bin/hoogle
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'';
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passthru = {
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isHaskellLibrary = false; # for the filter in ./with-packages-wrapper.nix
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};
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meta = {
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description = "A local Hoogle database";
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platforms = ghc.meta.platforms;
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hydraPlatforms = with stdenv.lib.platforms; none;
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maintainers = with stdenv.lib.maintainers; [ ttuegel ];
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};
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}
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