__init__.py 文件源码

def list_checkpoints(self, path):
        """Return a list of checkpoints for a given file"""
        cp = self._get_checkpoint_path(None, path)
        bucket_name, bucket_path = self.parent._parse_path(cp)
        try:
            bucket = self.parent._get_bucket(bucket_name)
            it = bucket.list_blobs(prefix=bucket_path, delimiter="/",
                                   max_results=self.parent.max_list_size)
            checkpoints = [{
                "id": os.path.splitext(file.path)[0][-36:],
                "last_modified": file.updated,
            } for file in islice(it, self.parent.max_list_size)]
        except NotFound:
            return []
        checkpoints.sort(key=lambda c: c["last_modified"], reverse=True)
        self.log.debug("list_checkpoints: %s: %s", path, checkpoints)
        return checkpoints