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|
{ stdenv, runCommand, writeText, writeScript, writeScriptBin, ruby, lib
, callPackage, defaultGemConfig, fetchurl, fetchgit, buildRubyGem, buildEnv
, git
, makeWrapper
, bundler
, tree
}@defs:
{ name ? null
, pname ? null
, gemdir ? null
, gemfile ? null
, lockfile ? null
, gemset ? null
, ruby ? defs.ruby
, gemConfig ? defaultGemConfig
, postBuild ? null
, document ? []
, meta ? {}
, groups ? ["default"]
, ignoreCollisions ? false
, ...
}@args:
let
drvName =
if name != null then name
else if pname != null then "${toString pname}-${mainGem.version}"
else throw "bundlerEnv: either pname or name must be set";
mainGem =
if pname == null then null
else gems."${pname}" or (throw "bundlerEnv: gem ${pname} not found");
gemfile' =
if gemfile == null then gemdir + "/Gemfile"
else gemfile;
lockfile' =
if lockfile == null then gemdir + "/Gemfile.lock"
else lockfile;
gemset' =
if gemset == null then gemdir + "/gemset.nix"
else gemset;
importedGemset = import gemset';
filteredGemset = (lib.filterAttrs (name: attrs:
if (builtins.hasAttr "groups" attrs)
then (builtins.any (gemGroup: builtins.any (group: group == gemGroup) groups) attrs.groups)
else true
) importedGemset);
applyGemConfigs = attrs:
(if gemConfig ? "${attrs.gemName}"
then attrs // gemConfig."${attrs.gemName}" attrs
else attrs);
configuredGemset = lib.flip lib.mapAttrs filteredGemset (name: attrs:
applyGemConfigs (attrs // { inherit ruby; gemName = name; })
);
hasBundler = builtins.hasAttr "bundler" filteredGemset;
bundler =
if hasBundler then gems.bundler
else defs.bundler.override (attrs: { inherit ruby; });
gems = lib.flip lib.mapAttrs configuredGemset (name: attrs:
buildRubyGem ((removeAttrs attrs ["source"]) // attrs.source // {
inherit ruby;
gemName = name;
gemPath = map (gemName: gems."${gemName}") (attrs.dependencies or []);
}));
# We have to normalize the Gemfile.lock, otherwise bundler tries to be
# helpful by doing so at run time, causing executables to immediately bail
# out. Yes, I'm serious.
confFiles = runCommand "gemfile-and-lockfile" {} ''
mkdir -p $out
cp ${gemfile'} $out/Gemfile
cp ${lockfile'} $out/Gemfile.lock
'';
envPaths = lib.attrValues gems ++ lib.optional (!hasBundler) bundler;
binPaths = if mainGem != null then [ mainGem ] else envPaths;
bundlerEnv = buildEnv {
inherit ignoreCollisions;
name = drvName;
paths = envPaths;
pathsToLink = [ "/lib" ];
postBuild = ''
${ruby}/bin/ruby ${./gen-bin-stubs.rb} \
"${ruby}/bin/ruby" \
"${confFiles}/Gemfile" \
"$out/${ruby.gemPath}" \
"${bundler}/${ruby.gemPath}" \
${lib.escapeShellArg binPaths} \
${lib.escapeShellArg groups}
'' + lib.optionalString (postBuild != null) postBuild;
meta = { platforms = ruby.meta.platforms; } // meta;
passthru = rec {
inherit ruby bundler gems;
wrappedRuby = stdenv.mkDerivation {
name = "wrapped-ruby-${drvName}";
nativeBuildInputs = [ makeWrapper ];
buildCommand = ''
mkdir -p $out/bin
for i in ${ruby}/bin/*; do
makeWrapper "$i" $out/bin/$(basename "$i") \
--set BUNDLE_GEMFILE ${confFiles}/Gemfile \
--set BUNDLE_PATH ${bundlerEnv}/${ruby.gemPath} \
--set BUNDLE_FROZEN 1 \
--set GEM_HOME ${bundlerEnv}/${ruby.gemPath} \
--set GEM_PATH ${bundlerEnv}/${ruby.gemPath}
done
'';
};
env = let
irbrc = builtins.toFile "irbrc" ''
if !(ENV["OLD_IRBRC"].nil? || ENV["OLD_IRBRC"].empty?)
require ENV["OLD_IRBRC"]
end
require 'rubygems'
require 'bundler/setup'
'';
in stdenv.mkDerivation {
name = "interactive-${drvName}-environment";
nativeBuildInputs = [ wrappedRuby bundlerEnv ];
shellHook = ''
export OLD_IRBRC="$IRBRC"
export IRBRC=${irbrc}
'';
buildCommand = ''
echo >&2 ""
echo >&2 "*** Ruby 'env' attributes are intended for interactive nix-shell sessions, not for building! ***"
echo >&2 ""
exit 1
'';
};
};
};
in
bundlerEnv
|