136 lines
3.5 KiB
Nix
136 lines
3.5 KiB
Nix
{ lib, ruby, rubygemsFun, fetchurl, makeWrapper, git } @ defs:
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lib.makeOverridable (
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{ name
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, ruby ? defs.ruby
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, rubygems ? (rubygemsFun ruby)
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, stdenv ? ruby.stdenv
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, namePrefix ? "${ruby.name}" + "-"
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, buildInputs ? []
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, doCheck ? false
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, dontBuild ? true
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, meta ? {}
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, gemPath ? []
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, ...} @ attrs:
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stdenv.mkDerivation (attrs // {
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inherit ruby rubygems;
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inherit doCheck;
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buildInputs = [ ruby rubygems makeWrapper git ] ++ buildInputs;
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name = namePrefix + name;
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src = if attrs ? src
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then attrs.src
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else fetchurl {
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url = "http://rubygems.org/downloads/${attrs.name}.gem";
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inherit (attrs) sha256;
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};
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phases = [ "unpackPhase" "patchPhase" "buildPhase" "checkPhase" "installPhase" "fixupPhase" ];
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# The source is expected to either be a gem package or a directory.
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#
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# - Gem packages are already built, so they don't even need to be unpacked.
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# They will skip the buildPhase.
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# - A directory containing the sources will need to go through all of the
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# usual phases.
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unpackPhase= ''
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gemRegex="\.gem"
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if [[ $src =~ $gemRegex ]]
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then
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runHook preUnpack
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echo "source is a gem package, won't unpack"
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gempkg=$src
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dontBuild=1
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runHook postUnpack
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else
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# Fall back to the original thing for everything else.
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unpackPhase
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fi
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'';
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checkPhase = "true";
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buildPhase = ''
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runHook preBuild
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# TODO: Investigate. The complete working tree is touched by fetchgit.
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if [ -d .git ]; then
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git reset
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fi
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gemspec=$(find . -name '*.gemspec')
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echo "found the following gemspecs:"
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echo "$gemspec"
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gemspec=$(echo "$gemspec" | head -n1)
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echo "building $gemspec"
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exec 3>&1
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output=$(gem build $gemspec | tee >(cat - >&3))
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exec 3>&-
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gempkg=$(echo "$output" | grep -oP 'File: \K(.*)')
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echo "gem package built: $gempkg"
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runHook postBuild
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'';
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installPhase = ''
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runHook preInstall
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# NOTE: This does NOT build the unpacked gem, but installs $src directly.
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# Gems that have not been downloaded from rubygems.org may need a
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# separate buildPhase.
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# --ignore-dependencies is necessary as rubygems otherwise always
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# connects to the repository, thus breaking pure builds.
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GEM_HOME=$out/${ruby.gemPath} \
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gem install \
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--local \
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--force \
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--http-proxy "http://nodtd.invalid" \
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--ignore-dependencies \
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--build-root "/" \
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--backtrace \
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$gempkg $gemFlags -- $buildFlags
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# Yes, we really do need the $out/${ruby.gemPath}/cache.
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# This is very important in order for many parts of RubyGems/Bundler to not blow up.
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# See https://github.com/bundler/bundler/issues/3327
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mkdir -p $out/bin
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for prog in $out/${ruby.gemPath}/gems/*/bin/*; do
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makeWrapper $prog $out/bin/$(basename $prog) \
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--prefix GEM_PATH : "$out/${ruby.gemPath}:$GEM_PATH" \
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--prefix RUBYLIB : "${rubygems}/lib" \
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$extraWrapperFlags ''${extraWrapperFlagsArray[@]}
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done
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#--prefix RUBYOPT rubygems \
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# looks like useless files which break build repeatability and consume space
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rm -fv $out/${ruby.gemPath}/doc/*/*/created.rid || true
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rm -fv $out/${ruby.gemPath}/gems/*/ext/*/mkmf.log || true
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mkdir -p $out/nix-support
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cat > $out/nix-support/setup-hook <<EOF
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if [[ "\$GEM_PATH" != *$out* ]]; then
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addToSearchPath GEM_PATH $out/${ruby.gemPath}
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fi
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EOF
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runHook postInstall
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'';
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propagatedBuildInputs = gemPath;
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propagatedUserEnvPkgs = gemPath;
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passthru.isRubyGem = true;
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inherit meta;
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})
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)
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