# File lib/bundler_ext/bundler_ext.rb, line 7
  def self.parse_from_gemfile(gemfile,*groups)
    ENV['BUNDLE_GEMFILE'] = gemfile
    extra_groups = ENV['BUNDLER_EXT_GROUPS']
    extra_groups.split(/\s/).each {|g| groups << g.to_sym} if extra_groups
    all_groups = false
    all_groups = true if groups.size == 1 and groups.include?(:all) and not extra_groups
    groups.map! { |g| g.to_sym }
    g = Bundler::Dsl.evaluate(gemfile,'foo',true)
    list = []
    g.dependencies.each do |dep|
      if ((groups & dep.groups).any? || all_groups) && dep.current_platform?
        Array(dep.autorequire || dep.name).each do |file|
          list << file
        end
      end
    end
    list
  end