class Bundler::Fetcher::CompactIndex

def fetch_spec(spec)
  spec -= [nil, "ruby", ""]
  contents = compact_index_client.spec(*spec)
  return nil if contents.nil?
  contents.unshift(spec.first)
  contents[3].map! {|d| Gem::Dependency.new(*d) }
  EndpointSpecification.new(*contents)
end