class Bundler::CompactIndexClient::Cache

def fetch(remote_path, path, etag_path)
  if already_fetched?(remote_path)
    Bundler::CompactIndexClient.debug { "already fetched #{remote_path}" }
  else
    Bundler::CompactIndexClient.debug { "fetching #{remote_path}" }
    @updater&.update(remote_path, path, etag_path)
  end
  read(path)
end