available?

# File lib/bundler/fetcher/dependency.rb, line 9
      def available?
        @available ||= fetch_uri.scheme != "file" && downloader.fetch(dependency_api_uri)
      rescue NetworkDownError => e
        raise HTTPError, e.message
      rescue AuthenticationRequiredError
        # Fail since we got a 401 from the server.
        raise
      rescue HTTPError
        false
      end