Method SubFetch

pkg/blob/fetcher.go:66–66

SubFetch returns part of a blob. The caller must close the returned io.ReadCloser. The Reader may return fewer than 'length' bytes. Callers should check. The returned error should be: ErrNegativeSubFetch if any of offset or length is negative, or os.ErrNotExist if the blob doesn't exist, or ErrOutOf

(ctx context.Context, ref Ref, offset, length int64)

	// the size of the blob. If the error is ErrUnimplemented, the caller should
	// treat this Fetcher as if it doesn't implement SubFetcher.
	SubFetch(ctx context.Context, ref Ref, offset, length int64) (io.ReadCloser, error)
}

func NewSerialFetcher(fetchers ...Fetcher) Fetcher {