Function FetchFile

pkg/files/files.go:26–39

Fetchfile gets the content of a file from the given offset using a remote reader.

(r reader.Reader, name string, offset int64, count int)

// Fetchfile gets the content of a file from the given offset using a remote reader.
func FetchFile(r reader.Reader, name string, offset int64, count int) ([]byte, error) {
	d := make([]byte, count)
	l := r.Log().With().Str("name", name).Int64("offset", offset).Int("count", count).Logger()
	l.Debug().Msg("fetch file start")

	_, err := r.PreadRemote(d, offset)
	if err != nil && err != io.EOF {
		l.Error().Err(err).Msg("fetch file error")
		return nil, err
	}

	l.Debug().Msg("fetch file stop")
	return d, nil
}