Esempio n. 1
0
File: gui.go Progetto: kat-co/juju
// guiVersionAndHash returns the version and the SHA256 hash of the current
// Juju GUI archive.
func guiVersionAndHash(st *state.State, storage binarystorage.Storage) (vers, hash string, err error) {
	currentVers, err := st.GUIVersion()
	if errors.IsNotFound(err) {
		return "", "", errors.NotFoundf("Juju GUI")
	}
	if err != nil {
		return "", "", errors.Annotate(err, "cannot retrieve current GUI version")
	}
	metadata, err := storage.Metadata(currentVers.String())
	if err != nil {
		return "", "", errors.Annotate(err, "cannot retrieve GUI metadata")
	}
	return metadata.Version, metadata.SHA256, nil
}