storage

type DirStorage struct {
	Dir       string
	PathDepth uint8
	DirPerm   os.FileMode
	FilePerm  os.FileMode
}

type Storage interface {
	OpenRead(contentHash string, rng *utils.Range) (rc io.ReadCloser, err error)
	Write(r io.Reader, maxSize int64) (exists bool, contentHash string, size int64, err error)
	Check(contentHash string) (exists bool, err error)
}