class Bundler::Fetcher::Dependency

def dependency_specs(gem_names)
  Bundler.ui.debug "Query Gemcutter Dependency Endpoint API: #{gem_names.join(',')}"
  gem_list = []
  deps_list = []
  gem_names.each_slice(Source::Rubygems::API_REQUEST_SIZE) do |names|
    marshalled_deps = downloader.fetch dependency_api_uri(names)
    gem_list += Bundler.load_marshal(marshalled_deps)
  end
  spec_list = gem_list.map do |s|
    dependencies = s[:dependencies].map do |name, requirement|
      dep = well_formed_dependency(name, requirement.split(", "))
      deps_list << dep.name
      dep
    end
    [s[:name], Gem::Version.new(s[:number]), s[:platform], dependencies]
  end
  [spec_list, deps_list.uniq]
end