diff options
Diffstat (limited to 'pkgs/development/interpreters/ruby/build-ruby-gem/nix-bundle-install.rb')
-rw-r--r-- | pkgs/development/interpreters/ruby/build-ruby-gem/nix-bundle-install.rb | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/pkgs/development/interpreters/ruby/build-ruby-gem/nix-bundle-install.rb b/pkgs/development/interpreters/ruby/build-ruby-gem/nix-bundle-install.rb new file mode 100644 index 000000000000..647b83b52c38 --- /dev/null +++ b/pkgs/development/interpreters/ruby/build-ruby-gem/nix-bundle-install.rb @@ -0,0 +1,153 @@ +require 'rbconfig' +require 'bundler/vendored_thor' +require 'bundler' +require 'rubygems/command' +require 'fileutils' +require 'pathname' +require 'tmpdir' + +# Options: +# +# name - the gem name +# uri - git repo uri +# repo - path to local checkout +# ref - the commit hash +# version - gem version +# build-flags - build arguments + +ruby = File.join(ENV["ruby"], "bin", RbConfig::CONFIG['ruby_install_name']) +out = ENV["out"] +bin_dir = File.join(ENV["out"], "bin") + +name = ARGV[0] +uri = ARGV[1] +REPO = ARGV[2] +ref = ARGV[3] +version = ARGV[4] +build_flags = ARGV[5] + +# options to pass to bundler +options = { + "name" => name, + "uri" => uri, + "ref" => ref, + "version" => version, +} + +# Monkey-patch Bundler to use our local checkout. +# I wish we didn't have to do this, but bundler does not expose an API to do +# these kinds of things. +Bundler.module_eval do + def self.requires_sudo? + false + end + + def self.root + # we don't have a Gemfile, so it doesn't make sense to try to make paths + # relative to the (non existent) parent directory thereof, so we give a + # nonsense path here. + Pathname.new("/no-root-path") + end + + def self.bundle_path + Pathname.new(ENV["GEM_HOME"]) + end + + def self.locked_gems + nil + end +end + +Bundler::Source::Git.class_eval do + def allow_git_ops? + true + end +end + +Bundler::Source::Git::GitProxy.class_eval do + def checkout + unless path.exist? + FileUtils.mkdir_p(path.dirname) + FileUtils.cp_r(File.join(REPO, ".git"), path) + system("chmod -R +w #{path}") + end + end + + def copy_to(destination, submodules=false) + unless File.exist?(destination.join(".git")) + FileUtils.mkdir_p(destination.dirname) + FileUtils.cp_r(REPO, destination) + system("chmod -R +w #{destination}") + end + end +end + +# UI +verbose = false +no_color = false +Bundler.ui = Bundler::UI::Shell.new({"no-color" => no_color}) +Bundler.ui.level = "debug" if verbose + +# Install +source = Bundler::Source::Git.new(options) +spec = source.specs.search_all(name).first +Bundler.rubygems.with_build_args [build_flags] do + source.install(spec) +end + +msg = spec.post_install_message +if msg + Bundler.ui.confirm "Post-install message from #{name}:" + Bundler.ui.info msg +end + +# Write out the binstubs +if spec.executables.any? + FileUtils.mkdir_p(bin_dir) + spec.executables.each do |exe| + wrapper = File.join(bin_dir, exe) + File.open(wrapper, "w") do |f| + stub = generate_stub(spec.name, exe) + f.write(<<-EOF) +#!#{ruby} +# +# This file was generated by Nix. +# +# The application '#{exe}' is installed as part of a gem, and +# this file is here to facilitate running it. +# + +require 'rubygems' +require 'bundler/setup' + +load Gem.bin_path(#{spec.name.inspect}, #{exe.inspect}) +EOF + end + + FileUtils.chmod("+x", wrapper) + end +end + +# Write out metadata +meta = "#{out}/nix-support/gem-meta" +FileUtils.mkdir_p(meta) +FileUtils.ln_s(spec.loaded_from.to_s, "#{meta}/spec") +File.open("#{meta}/name", "w") do |f| + f.write spec.name +end +File.open("#{meta}/install-path", "w") do |f| + f.write source.install_path.to_s +end +File.open("#{meta}/require-paths", "w") do |f| + f.write spec.require_paths.join(" ") +end +File.open("#{meta}/executables", "w") do |f| + f.write spec.executables.join(" ") +end + +# make the lib available during bundler/git installs +File.open("#{out}/nix-support/setup-hook", "a") do |f| + spec.require_paths.each do |dir| + f.puts("addToSearchPath RUBYLIB #{source.install_path}/#{dir}") + end +end |