gitlab: fix evaluation

nixos/modules/services/misc/gitlab.nix

@@ -7,8 +7,10 @@ with lib;
 let
   cfg = config.services.gitlab;
 
-  ruby = pkgs.ruby;
-  rubyLibs = pkgs.rubyLibs;
+  ruby = pkgs.gitlab.ruby;
+  bundler = pkgs.bundler;
+
+  gemHome = "${pkgs.gitlab.env}/${ruby.gemPath}"
 
   databaseYml = ''
     production:
@@ -38,13 +40,14 @@ let
 
   gitlab-runner = pkgs.stdenv.mkDerivation rec {
     name = "gitlab-runner";
-    buildInputs = [ pkgs.gitlab pkgs.rubyLibs.bundler pkgs.makeWrapper ];
+    buildInputs = [ pkgs.gitlab pkgs.bundler pkgs.makeWrapper ];
     phases = "installPhase fixupPhase";
     buildPhase = "";
     installPhase = ''
       mkdir -p $out/bin
-      makeWrapper ${rubyLibs.bundler}/bin/bundle $out/bin/gitlab-runner\
+      makeWrapper ${bundler}/bin/bundle $out/bin/gitlab-runner\
           --set RAKEOPT '"-f ${pkgs.gitlab}/share/gitlab/Rakefile"'\
+          --set GEM_HOME '${gemHome}'\
           --set UNICORN_PATH "${cfg.stateDir}/"\
           --set GITLAB_PATH "${pkgs.gitlab}/share/gitlab/"\
           --set GITLAB_APPLICATION_LOG_PATH "${cfg.stateDir}/log/application.log"\
@@ -172,6 +175,7 @@ in {
       after = [ "network.target" "redis.service" ];
       wantedBy = [ "multi-user.target" ];
       environment.HOME = "${cfg.stateDir}/home";
+      environment.GEM_HOME = gemHome;
       environment.UNICORN_PATH = "${cfg.stateDir}/";
       environment.GITLAB_PATH = "${pkgs.gitlab}/share/gitlab/";
       environment.GITLAB_APPLICATION_LOG_PATH = "${cfg.stateDir}/log/application.log";
@@ -201,7 +205,7 @@ in {
         Group = "gitlab";
         TimeoutSec = "300";
         WorkingDirectory = "${pkgs.gitlab}/share/gitlab";
-        ExecStart="${rubyLibs.bundler}/bin/bundle exec \"sidekiq -q post_receive -q mailer -q system_hook -q project_web_hook -q gitlab_shell -q common -q default -e production -P ${cfg.stateDir}/tmp/sidekiq.pid\"";
+        ExecStart="${bundler}/bin/bundle exec \"sidekiq -q post_receive -q mailer -q system_hook -q project_web_hook -q gitlab_shell -q common -q default -e production -P ${cfg.stateDir}/tmp/sidekiq.pid\"";
       };
     };
 
@@ -209,6 +213,7 @@ in {
       after = [ "network.target" "postgresql.service" "redis.service" ];
       wantedBy = [ "multi-user.target" ];
       environment.HOME = "${cfg.stateDir}/home";
+      environment.GEM_HOME = gemHome;
       environment.UNICORN_PATH = "${cfg.stateDir}/";
       environment.GITLAB_PATH = "${pkgs.gitlab}/share/gitlab/";
       environment.GITLAB_APPLICATION_LOG_PATH = "${cfg.stateDir}/log/application.log";
@@ -263,7 +268,7 @@ in {
 
             # force=yes disables the manual-interaction yes/no prompt
             # which breaks without an stdin.
-            force=yes ${rubyLibs.bundler}/bin/bundle exec rake -f ${pkgs.gitlab}/share/gitlab/Rakefile gitlab:setup RAILS_ENV=production
+            force=yes ${bundler}/bin/bundle exec rake -f ${pkgs.gitlab}/share/gitlab/Rakefile gitlab:setup RAILS_ENV=production
           fi
         fi
 
@@ -285,7 +290,7 @@ in {
         Group = "gitlab";
         TimeoutSec = "300";
         WorkingDirectory = "${pkgs.gitlab}/share/gitlab";
-        ExecStart="${rubyLibs.bundler}/bin/bundle exec \"unicorn -c ${cfg.stateDir}/config/unicorn.rb -E production\"";
+        ExecStart="${bundler}/bin/bundle exec \"unicorn -c ${cfg.stateDir}/config/unicorn.rb -E production\"";
       };
 
     };

pkgs/applications/version-management/gitlab/Gemfile

@@ -0,0 +1,258 @@
+source "https://rubygems.org"
+
+def darwin_only(require_as)
+  RUBY_PLATFORM.include?('darwin') && require_as
+end
+
+def linux_only(require_as)
+  RUBY_PLATFORM.include?('linux') && require_as
+end
+
+gem "rails", "~> 4.1.0"
+
+# Make links from text
+gem 'rails_autolink', '~> 1.1'
+
+# Default values for AR models
+gem "default_value_for", "~> 3.0.0"
+
+# Supported DBs
+gem "mysql2", group: :mysql
+gem "pg", group: :postgres
+
+# Auth
+gem "devise", '3.2.4'
+gem "devise-async", '0.9.0'
+gem 'omniauth', "~> 1.1.3"
+gem 'omniauth-google-oauth2'
+gem 'omniauth-twitter'
+gem 'omniauth-github'
+gem 'omniauth-shibboleth'
+
+# Extracting information from a git repository
+# Provide access to Gitlab::Git library
+gem "gitlab_git", '7.0.0.rc10'
+
+# Ruby/Rack Git Smart-HTTP Server Handler
+gem 'gitlab-grack', '~> 2.0.0.pre', require: 'grack'
+
+# LDAP Auth
+gem 'gitlab_omniauth-ldap', '1.1.0', require: "omniauth-ldap"
+
+# Git Wiki
+gem 'gollum-lib', '~> 3.0.0'
+
+# Language detection
+gem "gitlab-linguist", "~> 3.0.0", require: "linguist"
+
+# API
+gem "grape", "~> 0.6.1"
+gem "grape-entity", "~> 0.4.2"
+gem 'rack-cors', require: 'rack/cors'
+
+# Format dates and times
+# based on human-friendly examples
+gem "stamp"
+
+# Enumeration fields
+gem 'enumerize'
+
+# Pagination
+gem "kaminari", "~> 0.15.1"
+
+# HAML
+gem "haml-rails"
+
+# Files attachments
+gem "carrierwave"
+
+# Drag and Drop UI
+gem 'dropzonejs-rails'
+
+# for aws storage
+gem "fog", "~> 1.14"
+gem "unf"
+
+# Authorization
+gem "six"
+
+# Seed data
+gem "seed-fu"
+
+# Markup pipeline for GitLab
+gem 'html-pipeline-gitlab', '~> 0.1.0'
+
+# Markdown to HTML
+gem "github-markup"
+
+# Required markup gems by github-markdown
+gem 'redcarpet', '~> 3.1.2'
+gem 'RedCloth'
+gem 'rdoc', '~>3.6'
+gem 'org-ruby', '= 0.9.9'
+gem 'creole', '~>0.3.6'
+gem 'wikicloth', '=0.8.1'
+gem 'asciidoctor', '= 0.1.4'
+
+# Diffs
+gem 'diffy', '~> 3.0.3'
+
+# Application server
+group :unicorn do
+  gem "unicorn", '~> 4.6.3'
+  gem 'unicorn-worker-killer'
+end
+
+# State machine
+gem "state_machine"
+
+# Issue tags
+gem "acts-as-taggable-on"
+
+# Background jobs
+gem 'slim'
+gem 'sinatra', require: nil
+gem 'sidekiq', '2.17.0'
+
+# HTTP requests
+gem "httparty"
+
+# Colored output to console
+gem "colored"
+
+# GitLab settings
+gem 'settingslogic'
+
+# Misc
+gem "foreman"
+gem 'version_sorter'
+
+# Cache
+gem "redis-rails"
+
+# Campfire integration
+gem 'tinder', '~> 1.9.2'
+
+# HipChat integration
+gem "hipchat", "~> 0.14.0"
+
+# Flowdock integration
+gem "gitlab-flowdock-git-hook", "~> 0.4.2"
+
+# Gemnasium integration
+gem "gemnasium-gitlab-service", "~> 0.2"
+
+# Slack integration
+gem "slack-notifier", "~> 0.3.2"
+
+# d3
+gem "d3_rails", "~> 3.1.4"
+
+# underscore-rails
+gem "underscore-rails", "~> 1.4.4"
+
+# Sanitize user input
+gem "sanitize", '~> 2.0'
+
+# Protect against bruteforcing
+gem "rack-attack"
+
+# Ace editor
+gem 'ace-rails-ap'
+
+# Keyboard shortcuts
+gem 'mousetrap-rails'
+
+# Semantic UI Sass for Sidebar
+gem 'semantic-ui-sass', '~> 0.16.1.0'
+
+gem "sass-rails", '~> 4.0.2'
+gem "coffee-rails"
+gem "uglifier"
+gem "therubyracer"
+gem 'turbolinks'
+gem 'jquery-turbolinks'
+
+gem 'select2-rails'
+gem 'jquery-atwho-rails', "~> 0.3.3"
+gem "jquery-rails"
+gem "jquery-ui-rails"
+gem "jquery-scrollto-rails"
+gem "raphael-rails", "~> 2.1.2"
+gem 'bootstrap-sass', '~> 3.0'
+gem "font-awesome-rails", '~> 4.2'
+gem "gitlab_emoji", "~> 0.0.1.1"
+gem "gon", '~> 5.0.0'
+gem 'nprogress-rails'
+gem 'request_store'
+gem "virtus"
+
+group :development do
+  gem "annotate", "~> 2.6.0.beta2"
+  gem "letter_opener"
+  gem 'quiet_assets', '~> 1.0.1'
+  gem 'rack-mini-profiler', require: false
+
+  # Better errors handler
+  gem 'better_errors'
+  gem 'binding_of_caller'
+
+  gem 'rails_best_practices'
+
+  # Docs generator
+  gem "sdoc"
+
+  # thin instead webrick
+  gem 'thin'
+end
+
+group :development, :test do
+  gem 'coveralls', require: false
+  # gem 'rails-dev-tweaks'
+  gem 'spinach-rails'
+  gem "rspec-rails"
+  gem "capybara", '~> 2.2.1'
+  gem "pry"
+  gem "awesome_print"
+  gem "database_cleaner"
+  gem "launchy"
+  gem 'factory_girl_rails'
+
+  # Prevent occasions where minitest is not bundled in packaged versions of ruby (see #3826)
+  gem 'minitest', '~> 5.3.0'
+
+  # Generate Fake data
+  gem "ffaker"
+
+  # Guard
+  gem 'guard-rspec'
+  gem 'guard-spinach'
+
+  # Notification
+  gem 'rb-fsevent', require: darwin_only('rb-fsevent')
+  gem 'growl',      require: darwin_only('growl')
+  gem 'rb-inotify', require: linux_only('rb-inotify')
+
+  # PhantomJS driver for Capybara
+  gem 'poltergeist', '~> 1.5.1'
+
+  gem 'jasmine', '2.0.2'
+
+  gem "spring", '1.1.3'
+  gem "spring-commands-rspec", '1.0.1'
+  gem "spring-commands-spinach", '1.0.0'
+end
+
+group :test do
+  gem "simplecov", require: false
+  gem "shoulda-matchers", "~> 2.1.0"
+  gem 'email_spec'
+  gem "webmock"
+  gem 'test_after_commit'
+end
+
+group :production do
+  gem "gitlab_meta", '7.0'
+end
+
+gem "newrelic_rpm"

pkgs/applications/version-management/gitlab/Gemfile.lock

@@ -281,6 +281,7 @@ GEM
       addressable (~> 2.3)
     letter_opener (1.1.2)
       launchy (~> 2.2)
+    libv8 (3.16.14.3)
     listen (2.3.1)
       celluloid (>= 0.15.2)
       rb-fsevent (>= 0.9.3)
@@ -297,6 +298,7 @@ GEM
     multi_json (1.10.1)
     multi_xml (0.5.5)
     multipart-post (1.2.0)
+    mysql2 (0.3.16)
     net-ldap (0.7.0)
     net-scp (1.1.2)
       net-ssh (>= 2.6.5)
@@ -420,6 +422,7 @@ GEM
       redis-store (~> 1.1.0)
     redis-store (1.1.4)
       redis (>= 2.2)
+    ref (1.0.5)
     request_store (1.0.5)
     require_all (1.3.2)
     rest-client (1.6.7)
@@ -518,6 +521,9 @@ GEM
     term-ansicolor (1.2.2)
       tins (~> 0.8)
     test_after_commit (0.2.2)
+    therubyracer (0.12.0)
+      libv8 (~> 3.16.14.0)
+      ref
     thin (1.6.1)
       daemons (>= 1.0.9)
       eventmachine (>= 1.0.0)
@@ -691,6 +697,7 @@ DEPENDENCIES
   stamp
   state_machine
   test_after_commit
+  therubyracer
   thin
   tinder (~> 1.9.2)
   turbolinks

pkgs/applications/version-management/gitlab/README

@@ -1,5 +0,0 @@
-to regenerate Gemfile.nix and Gemfile.lock you need to
-
-  % nix-build bootstrap.nix
-  % cp result/Gemfile.nix ./
-  % cp result/Gemfile.lock ./

pkgs/applications/version-management/gitlab/bootstrap.nix

@@ -1,45 +0,0 @@
-{ pkgs ? import <nixpkgs> {}
-}:
-
-with pkgs;
-
-let
-
-in stdenv.mkDerivation rec {
-  version = "7.4.2";
-  name = "gitlab-${version}";
-  __noChroot = true;
-  src = fetchurl {
-    url = "https://github.com/gitlabhq/gitlabhq/archive/v${version}.zip";
-    sha256 = "01iplkpa4scr0wcap6vjrc960dj15z4ciclaqswj0sz5hrp9glw6";
-  };
-  buildInputs = [
-    ruby rubyLibs.bundler libiconv libxslt libxml2 pkgconfig
-    libffi postgresql which stdenv unzip
-  ];
-  installPhase = ''
-    unset http_proxy
-    unset ftp_proxy
-
-    cp -R . $out
-    cp ${./generate_nix_requirements.rb} $out/generate_nix_requirements.rb
-    cd $out
-
-    cat > config/database.yml <<EOF
-    production:
-      adapter: postgresql
-    EOF
-
-    substituteInPlace Gemfile --replace 'gem "therubyracer"' ""
-
-    bundle config --local build.nokogiri --use-system-libraries \
-      --with-iconv-dir=${libiconv} \
-      --with-xslt-dir=${libxslt} \
-      --with-xml2-dir=${libxml2} \
-      --with-pkg-config \
-      --with-pg-config=${postgresql}/bin/pg_config
-
-    HOME="/tmp/gitlab-${version}" ruby generate_nix_requirements.rb
-    rm -R /tmp/gems
-  '';
-}

pkgs/applications/version-management/gitlab/default.nix

@@ -1,41 +1,54 @@
-{ stdenv, fetchurl, ruby, rubyLibs, libiconv, libxslt, libxml2, pkgconfig, libffi, postgresql, libyaml, ncurses, curl, openssh, redis, zlib, icu, checkinstall, logrotate, docutils, cmake, git, gdbm, readline, unzip, gnumake, which, tzdata, nodejs }:
+{ stdenv, lib, bundler, fetchgit, bundlerEnv, defaultGemConfig, libiconv, ruby
+, tzdata, git
+}:
 
 let
-  gemspec = map (gem: fetchurl { url=gem.url; sha256=gem.hash; }) (import ./Gemfile.nix);
-
-
-in stdenv.mkDerivation rec {
-  version = "7.4.2";
-  name = "gitlab-${version}";
-
-  src = fetchurl {
-    url = "https://github.com/gitlabhq/gitlabhq/archive/v${version}.zip";
-    sha256 = "01iplkpa4scr0wcap6vjrc960dj15z4ciclaqswj0sz5hrp9glw6";
+  gitlab = fetchgit {
+    url = "https://github.com/gitlabhq/gitlabhq.git";
+    rev = "477743a154e85c411e8a533980abce460b5669fc";
+    fetchSubmodules = false;
+    sha256 = "0jl1w9d46v8hc27h9s380ha07m3fd2zpflj4q9vywwcf570ahj7x";
   };
 
-  buildInputs = [
-    ruby rubyLibs.bundler libyaml gdbm readline ncurses curl openssh redis zlib
-    postgresql libxslt libxml2 pkgconfig libffi icu checkinstall logrotate docutils nodejs
-    git unzip gnumake which cmake
-  ];
+  env = bundlerEnv {
+    name = "gitlab";
+    inherit ruby;
+    gemfile = ./Gemfile;
+    lockfile = ./Gemfile.lock;
+    gemset = ./gemset.nix;
+    meta = with lib; {
+      homepage = http://www.gitlab.com/;
+      platforms = platforms.linux;
+      maintainers = [ ];
+      license = licenses.mit;
+    };
+  };
 
-  # cmake is required by a build depdenceny, not the main binary:
-  dontUseCmakeConfigure = true;
+in
 
+stdenv.mkDerivation rec {
+  name = "gitlab-${version}";
+  version = "7.4.2";
+  buildInputs = [ ruby bundler tzdata git ];
+  unpackPhase = ''
+    runHook preUnpack
+    cp -r ${gitlab}/* .
+    chmod -R +w .
+    cp ${./Gemfile} Gemfile
+    cp ${./Gemfile.lock} Gemfile.lock
+    runHook postUnpack
+  '';
   patches = [
     ./remove-hardcoded-locations.patch
   ];
   postPatch = ''
+    # For reasons I don't understand "bundle exec" ignores the
+    # RAILS_ENV causing tests to be executed that fail because we're
+    # not installing development and test gems above. Deleting the
+    # tests works though.:
+    rm lib/tasks/test.rake
+
     mv config/gitlab.yml.example config/gitlab.yml
-  '';
-
-  installPhase = ''
-    mkdir -p $out/share/gitlab
-    cp -R . $out/share/gitlab
-    cd $out/share/gitlab
-
-    export HOME=$(pwd)
-    export GITLAB_EMAIL_FROM="required@to-make-it-work.org"
 
     # required for some gems:
     cat > config/database.yml <<EOF
@@ -47,41 +60,17 @@ in stdenv.mkDerivation rec {
         username: gitlab
         encoding: utf8
     EOF
-
-    mkdir -p vendor/cache
-    ${stdenv.lib.concatStrings (map (gem: "ln -s ${gem} vendor/cache/${gem.name};") gemspec)}
-
-    cp ${./Gemfile.lock} Gemfile.lock
-    substituteInPlace Gemfile --replace 'gem "therubyracer"' ""
-
-    bundle config build.nokogiri \
-      --use-system-libraries \
-      --with-xslt-dir=${libxslt} \
-      --with-xml2-dir=${libxml2} \
-      --with-pkg-config=${pkgconfig}/bin/pkg-config \
-      --with-pg-config=${postgresql}/bin/pg_config
-
-    # See https://github.com/gitlabhq/gitlab-public-wiki/wiki/Trouble-Shooting-Guide:
-    bundle install -j4 --verbose --local --deployment --without development test mysql
-
-    # Fix timezone data directory
-    substituteInPlace $out/share/gitlab/vendor/bundle/ruby/*/gems/tzinfo-*/lib/tzinfo/zoneinfo_data_source.rb \
-      --replace "/etc/zoneinfo" "${tzdata}/share/zoneinfo"
-
-    # For reasons I don't understand "bundle exec" ignores the
-    # RAILS_ENV causing tests to be executed that fail because we're
-    # not installing development and test gems above. Deleting the
-    # tests works though.:
-    rm $out/share/gitlab/lib/tasks/test.rake
-
-    # Assets
+  '';
+  buildPhase = ''
+    export GEM_HOME=${env}/${ruby.gemPath}
     bundle exec rake assets:precompile RAILS_ENV=production
   '';
-
-  meta = with stdenv.lib; {
-    homepage = http://www.gitlab.com/;
-    platforms = platforms.linux;
-    maintainers = [ ];
-    license = licenses.mit;
+  installPhase = ''
+    mkdir -p $out/share
+    cp -r . $out/share/gitlab
+  '';
+  passthru = {
+    inherit env;
+    inherit ruby;
   };
 }

pkgs/applications/version-management/gitlab/generate_nix_requirements.rb

@@ -1,56 +0,0 @@
-#!/usr/bin/env ruby
-
-require 'rubygems'
-require 'bundler'
-require 'fileutils'
-require 'net/http'
-require 'net/https'
-require 'uri'
-
-TMP_DIR = "/tmp/gems"
-
-FileUtils.rm_rf(TMP_DIR) if File.exists?(TMP_DIR)
-FileUtils.mkdir TMP_DIR
-
-GEMSERVER = "http://rubygems.org"
-
-# inspect Gemfile.lock
-lockfile = Bundler::LockfileParser.new(Bundler.read_file("Gemfile.lock"))
-
-to_mirror = {}
-
-uri = URI(GEMSERVER)
-http = Net::HTTP.new(uri.host, uri.port)
-http.use_ssl = uri.scheme == 'https'
-
-requirements = {}
-
-lockfile.specs.each do |s|
-  possible_gem_name = "#{s.name}-#{s.version.to_s}.gem"
-
-  Dir.chdir TMP_DIR do
-    filename = `gem fetch #{s.name} -v #{s.version.to_s}`.split()[1]
-    hash = `sha256sum #{filename}.gem`
-    url = "#{GEMSERVER}/downloads/#{filename}.gem"
-    puts url
-    requirements[s.name] = { :version => s.version.to_s, 
-                             :hash => hash.split().first,
-                             :url => url,}
-    
-  end
-end
-
-filename = 'Gemfile.nix'
-
-File.open(filename, 'w') do |file|
-  file.puts "["
-  requirements.each do |name, info|
-    file.puts "{"
-    file.puts ['name = ', '"', name, '";'].join('')
-    file.puts ['hash = ', '"', info[:hash], '";'].join('')
-    file.puts ['url = ', '"', info[:url], '";'].join('')
-    file.puts ['version = ', '"', info[:version], '";'].join('')
-    file.puts "}"
-  end
-  file.puts "]"
-end

pkgs/development/interpreters/ruby/bundler-env/default-gem-config.nix

@@ -18,16 +18,26 @@
 # (to make gems behave if necessary).
 
 { lib, fetchurl, writeScript, ruby, libxml2, libxslt, python, stdenv, which
-, libiconv, postgresql, v8, v8_3_16_14, clang, sqlite, zlib, imagemagick, pkgconfig
-, ncurses, xapian, gpgme, utillinux, fetchpatch, tzdata
+, libiconv, postgresql, v8, v8_3_16_14, clang, sqlite, zlib, imagemagick
+, pkgconfig , ncurses, xapian, gpgme, utillinux, fetchpatch, tzdata, icu, libffi
+, cmake, libssh2, openssl, mysql
 }:
 
 let
   v8 = v8_3_16_14;
+  mysql = (import <nixpkgs> {}).mysql;
 
 in
 
 {
+  charlock_holmes = attrs: {
+    buildInputs = [ which icu ];
+  };
+
+  ffi = attrs: {
+    buildInputs = [ libffi pkgconfig ];
+  };
+
   gpgme = attrs: {
     buildInputs = [ gpgme ];
   };
@@ -46,6 +56,10 @@ in
     ];
   };
 
+  mysql2 = attrs: {
+    buildInputs = [ mysql zlib openssl ];
+  };
+
   ncursesw = attrs: {
     buildInputs = [ ncurses ];
     buildFlags = [
@@ -77,6 +91,10 @@ in
     buildInputs = [ imagemagick pkgconfig ];
   };
 
+  rugged = attrs: {
+    buildInputs = [ cmake pkgconfig openssl libssh2 zlib ];
+  };
+
   sqlite3 = attrs: {
     buildFlags = [
       "--with-sqlite3-include=${sqlite}/include"
@@ -103,10 +121,10 @@ in
     ];
   };
 
-  tzdata = attrs: {
+  tzinfo = attrs: {
     postPatch = ''
       substituteInPlace lib/tzinfo/zoneinfo_data_source.rb \
-        --replace "/etc/zoneinfo" "${tzdata}/share/zoneinfo"
+        --replace "/usr/share/zoneinfo" "${tzdata}/share/zoneinfo"
     '';
   };
 

pkgs/development/interpreters/ruby/bundler-env/default.nix

@@ -8,6 +8,7 @@
 
 { name, gemset, gemfile, lockfile, ruby ? defs.ruby, gemConfig ? defaultGemConfig
 , enableParallelBuilding ? false # TODO: this might not work, given the env-var shinanigans.
+, postInstall ? null
 , documentation ? false
 , meta ? {}
 }@args:
@@ -108,7 +109,7 @@ let
               FileUtils.cp(patched_package.spec.file_name, out)
             ''}
           else
-            cp -r . out
+            cp -r . $out
           fi
 
           runHook postInstall
@@ -273,13 +274,13 @@ stdenv.mkDerivation {
     export NIX_BUNDLER_GEMPATH=${bundler}/${ruby.gemPath}
 
     export GEM_HOME=$out/${ruby.gemPath}
-    export GEM_PATH=$GEM_HOME
+    export GEM_PATH=$NIX_BUNDLER_GEMPATH:$GEM_HOME
     mkdir -p $GEM_HOME
 
     ${allBuildFlags}
-    #export
 
     mkdir gems
+    cp ${bundler}/${bundler.ruby.gemPath}/cache/bundler-*.gem gems
     ${copyGems}
 
     ${lib.optionalString (!documentation) ''
@@ -295,8 +296,13 @@ stdenv.mkDerivation {
     cp ${./monkey_patches.rb} monkey_patches.rb
     export RUBYOPT="-rmonkey_patches.rb -I $(pwd -P)"
     bundler install --frozen --binstubs ${lib.optionalString enableParallelBuilding "--jobs $NIX_BUILD_CORES"}
+    RUBYOPT=""
+
+    runHook postInstall
   '';
 
+  inherit postInstall;
+
   passthru = {
     inherit ruby;
     inherit bundler;

pkgs/top-level/all-packages.nix

@@ -1316,9 +1316,10 @@ let
   gifsicle = callPackage ../tools/graphics/gifsicle { };
 
   # Evaluation broken by recent ruby changes.
-  # gitlab = callPackage ../applications/version-management/gitlab {
-  #  libiconv = libiconvOrLibc;
-  # };
+  gitlab = callPackage ../applications/version-management/gitlab {
+    libiconv = libiconvOrLibc;
+    ruby = ruby_2_1_3;
+  };
 
   # Evaluation broken by recent ruby changes.
   # gitlab-shell = callPackage ../applications/version-management/gitlab-shell { };