docker_image_.py 文件源码

def blob_size(self, digest):
    """The byte size of the raw blob."""
    suffix = 'blobs/' + digest
    if isinstance(self._name, docker_name.Repository):
      suffix = '{repository}/{suffix}'.format(
          repository=self._name.repository,
          suffix=suffix)

    resp, unused_content = self._transport.Request(
        '{scheme}://{registry}/v2/{suffix}'.format(
            scheme=docker_http.Scheme(self._name.registry),
            registry=self._name.registry,
            suffix=suffix),
        method='HEAD',
        accepted_codes=[httplib.OK])

    return int(resp['content-length'])

  # Large, do not memoize.