require 'rbconfig' require 'rubygems' require 'rubygems/specification' require 'fileutils' # args/settings out = ENV["out"] ruby = ARGV[0] gemfile = ARGV[1] bundle_path = ARGV[2] bundler_gem_path = ARGV[3] paths = ARGV[4].split groups = ARGV[5].split # generate binstubs FileUtils.mkdir_p("#{out}/bin") paths.each do |path| next unless File.directory?("#{path}/nix-support/gem-meta") name = File.read("#{path}/nix-support/gem-meta/name") executables = File.read("#{path}/nix-support/gem-meta/executables").split executables.each do |exe| File.open("#{out}/bin/#{exe}", "w") do |f| 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. # ENV["BUNDLE_GEMFILE"] = #{gemfile.dump} ENV["BUNDLE_PATH"] = #{bundle_path.dump} ENV['BUNDLE_FROZEN'] = '1' Gem.use_paths(#{bundler_gem_path.dump}, ENV["GEM_PATH"]) require 'bundler' Bundler.setup(#{groups.map(&:dump).join(', ')}) load Gem.bin_path(#{name.dump}, #{exe.dump}) EOF FileUtils.chmod("+x", "#{out}/bin/#{exe}") end end end