# File lib/meez/meez.rb, line 35
  def self.add_gem(cookbook_path, name, version = nil)
    puts "adding #{name} gem to Gemfile"
    if version
      append_file(File.join(cookbook_path, 'Gemfile'), "gem '#{name}', '#{version}'")
    else
      append_file(File.join(cookbook_path, 'Gemfile'), "gem '#{name}'")
    end
  end