package sync import ( "io" "os" "time" ) type Object struct { Path string IsDir bool Size int64 Modified time.Time ETag string } type Target interface { Inventory() ([]*Object, error) Mkdir(path string) error ReadStream(path string) (io.ReadCloser, error) WriteStream(path string, stream io.Reader, mode os.FileMode) error SetModificationTime(path string, mtime time.Time) error }