Using Jammit packages in Jasmine

jasmine.yml

src_files:
  - public/javascripts/lib/jquery/jquery.js

# jammit_packages
#
# See jasmine_config.rb

jammit_packages:
  - head
  - common
  - checkout

jasmine_config.rb

module Jasmine
  class Config
    alias_method :original_src_files, :src_files
    def src_files
      files = original_src_files
      files += pull_from_jammit(jammit_packages)
      match_files(src_dir, files)
    end

    def jammit_packages
      simple_config['jammit_packages'].map(&:to_sym)
    end

    def pull_from_jammit(packages)
      jammit_js = Jammit.packager.instance_variable_get(:@packages)[:js]
      packages.map{ |package| jammit_js[package][:urls].map{ |url| "public" + url } }.compact.flatten
    end
  end
end