class Bundler::Plugin::DSL

def source(source, *args, &blk)
  options = args.last.is_a?(Hash) ? args.pop.dup : {}
  options = normalize_hash(options)
  return super unless options.key?("type")
  plugin_name = "bundler-source-#{options["type"]}"
  return if @dependencies.any? {|d| d.name == plugin_name }
  plugin(plugin_name)
  @inferred_plugins << plugin_name
end