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|
{ stdenv, runCommand, ruby, lib
, defaultGemConfig, buildRubyGem, buildEnv
, makeWrapper
, bundler
}@defs:
{
drvName
, pname
, gemfile
, lockfile
, gemset
, ruby ? defs.ruby
, gemConfig ? defaultGemConfig
, postBuild ? null
, document ? []
, meta ? {}
, groups ? ["default"]
, ignoreCollisions ? false
, ...
}@args:
with (import ./functions.nix);
let
mainGem = gems."${pname}" or (throw "bundlerEnv: gem ${pname} not found");
importedGemset = import gemset;
filteredGemset = lib.filterAttrs (name: attrs: platformMatches attrs && groupMatches attrs) importedGemset;
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: buildGem name attrs);
copyIfBundledByPath = { bundledByPath ? false, ...}@main:
(if bundledByPath then ''
cp -a ${gemdir}/* $out/
'' else ""
);
maybeCopyAll = main: if main == null then "" else copyIfBundledByPath main;
# 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
${maybeCopyAll mainGem}
cp ${gemfile} $out/Gemfile || ls -l $out/Gemfile
cp ${lockfile} $out/Gemfile.lock || ls -l $out/Gemfile.lock
'';
buildGem = name: attrs: (
let
gemAttrs = composeGemAttrs gems name attrs;
in
if gemAttrs.type == "path" then
pathDerivation gemAttrs
else
buildRubyGem gemAttrs
);
envPaths = lib.attrValues gems ++ lib.optional (!hasBundler) bundler;
# binPaths = if mainGem != null then [ mainGem ] else envPaths;
in
buildEnv {
inherit ignoreCollisions;
name = drvName;
paths = envPaths;
pathsToLink = [ "/lib" ];
postBuild = genStubsScript defs // args // {
inherit confFiles bundler;
binPaths = envPaths;
} + lib.optionalString (postBuild != null) postBuild;
meta = { platforms = ruby.meta.platforms; } // meta;
passthru = rec {
inherit ruby bundler gems;
wrappedRuby = stdenv.mkDerivation {
name = "wrapped-ruby-${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 = "${drvName}-interactive-environment";
nativeBuildInputs = [ wrappedRuby bundlerEnv ];
shellHook = ''
export OLD_IRBRC="$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
'';
};
};
}
|