mirror of
https://github.com/NixOS/nixpkgs.git
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fced35fa44
Don't default `doCheck` to false, and use the default set of phases so the phases list does not need to be overriden in order to add checkPhase or installCheckPhase.
220 lines
6.0 KiB
Nix
220 lines
6.0 KiB
Nix
# This builds gems in a way that is compatible with bundler.
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#
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# Bundler installs gems from git sources _very_ differently from how RubyGems
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# installes gem packages, though they both install gem packages similarly.
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#
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# We monkey-patch Bundler to remove any impurities and then drive its internals
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# to install git gems.
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#
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# For the sake of simplicity, gem packages are installed with the standard `gem`
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# program.
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#
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# Note that bundler does not support multiple prefixes; it assumes that all
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# gems are installed in a common prefix, and has no support for specifying
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# otherwise. Therefore, if you want to be able to use the resulting derivations
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# with bundler, you need to create a symlink forrest first, which is what
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# `bundlerEnv` does for you.
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#
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# Normal gem packages can be used outside of bundler; a binstub is created in
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# $out/bin.
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{ lib, fetchurl, fetchgit, makeWrapper, git, darwin
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, ruby, bundler
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} @ defs:
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lib.makeOverridable (
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{ name ? null
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, gemName
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, version ? null
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, type ? "gem"
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, document ? [] # e.g. [ "ri" "rdoc" ]
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, platform ? "ruby"
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, ruby ? defs.ruby
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, stdenv ? ruby.stdenv
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, namePrefix ? (let
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rubyName = builtins.parseDrvName ruby.name;
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in "${rubyName.name}${rubyName.version}-")
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, buildInputs ? []
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, meta ? {}
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, patches ? []
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, gemPath ? []
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, dontStrip ? true
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# Assume we don't have to build unless strictly necessary (e.g. the source is a
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# git checkout).
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# If you need to apply patches, make sure to set `dontBuild = false`;
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, dontBuild ? true
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, propagatedBuildInputs ? []
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, propagatedUserEnvPkgs ? []
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, buildFlags ? []
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, passthru ? {}
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, ...} @ attrs:
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let
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src = attrs.src or (
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if type == "gem" then
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fetchurl {
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urls = map (
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remote: "${remote}/gems/${gemName}-${version}.gem"
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) (attrs.source.remotes or [ "https://rubygems.org" ]);
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inherit (attrs.source) sha256;
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}
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else if type == "git" then
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fetchgit {
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inherit (attrs.source) url rev sha256 fetchSubmodules;
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leaveDotGit = true;
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}
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else if type == "url" then
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fetchurl attrs.source
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else
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throw "buildRubyGem: don't know how to build a gem of type \"${type}\""
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);
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documentFlag =
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if document == []
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then "-N"
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else "--document ${lib.concatStringsSep "," document}";
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in
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stdenv.mkDerivation ((builtins.removeAttrs attrs ["source"]) // {
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inherit ruby;
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inherit dontBuild;
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inherit dontStrip;
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inherit type;
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buildInputs = [
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ruby makeWrapper
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] ++ lib.optionals (type == "git") [ git ]
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++ lib.optionals (type != "gem") [ bundler ]
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++ lib.optional stdenv.isDarwin darwin.libobjc
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++ buildInputs;
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#name = builtins.trace (attrs.name or "no attr.name" ) "${namePrefix}${gemName}-${version}";
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name = attrs.name or "${namePrefix}${gemName}-${version}";
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inherit src;
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unpackPhase = attrs.unpackPhase or ''
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runHook preUnpack
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if [[ -f $src && $src == *.gem ]]; then
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if [[ -z "$dontBuild" ]]; then
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# we won't know the name of the directory that RubyGems creates,
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# so we'll just use a glob to find it and move it over.
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gempkg="$src"
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sourceRoot=source
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gem unpack $gempkg --target=container
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cp -r container/* $sourceRoot
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rm -r container
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# copy out the original gemspec, for convenience during patching /
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# overrides.
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gem specification $gempkg --ruby > original.gemspec
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gemspec=$(readlink -f .)/original.gemspec
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else
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gempkg="$src"
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fi
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else
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# Fall back to the original thing for everything else.
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dontBuild=""
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preUnpack="" postUnpack="" unpackPhase
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fi
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runHook postUnpack
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'';
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buildPhase = attrs.buildPhase or ''
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runHook preBuild
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if [[ "$type" == "gem" ]]; then
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if [[ -z "$gemspec" ]]; then
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gemspec="$(find . -name '*.gemspec')"
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echo "found the following gemspecs:"
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echo "$gemspec"
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gemspec="$(echo "$gemspec" | head -n1)"
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fi
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exec 3>&1
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output="$(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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fi
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runHook postBuild
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'';
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# Note:
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# We really do need to keep 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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installPhase = attrs.installPhase or ''
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runHook preInstall
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export GEM_HOME=$out/${ruby.gemPath}
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mkdir -p $GEM_HOME
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echo "buildFlags: $buildFlags"
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${lib.optionalString (type == "url") ''
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ruby ${./nix-bundle-install.rb} \
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"path" \
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'${gemName}' \
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'${version}' \
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'${lib.escapeShellArgs buildFlags}'
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''}
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${lib.optionalString (type == "git") ''
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ruby ${./nix-bundle-install.rb} \
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"git" \
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'${gemName}' \
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'${version}' \
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'${lib.escapeShellArgs buildFlags}' \
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'${attrs.source.url}' \
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'${src}' \
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'${attrs.source.rev}'
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''}
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${lib.optionalString (type == "gem") ''
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if [[ -z "$gempkg" ]]; then
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echo "failure: \$gempkg path unspecified" 1>&2
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exit 1
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elif [[ ! -f "$gempkg" ]]; then
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echo "failure: \$gempkg path invalid" 1>&2
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exit 1
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fi
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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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--install-dir "$GEM_HOME" \
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--build-root '/' \
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--backtrace \
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--no-env-shebang \
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${documentFlag} \
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$gempkg $gemFlags -- $buildFlags
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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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# write out metadata and binstubs
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spec=$(echo $out/${ruby.gemPath}/specifications/*.gemspec)
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ruby ${./gem-post-build.rb} "$spec"
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''}
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runHook postInstall
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'';
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propagatedBuildInputs = gemPath ++ propagatedBuildInputs;
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propagatedUserEnvPkgs = gemPath ++ propagatedUserEnvPkgs;
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passthru = passthru // { isRubyGem = true; };
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inherit meta;
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})
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)
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