func makeNewSnapRevision(orig, new *info, targetDir string, db *asserts.Database) error { a, err := db.Find(asserts.SnapRevisionType, map[string]string{ "snap-sha3-384": orig.digest, }) if err != nil { return err } origSnapRev := a.(*asserts.SnapRevision) headers := map[string]interface{}{ "authority-id": "testrootorg", "snap-sha3-384": new.digest, "snap-id": origSnapRev.SnapID(), "snap-size": fmt.Sprintf("%d", new.size), "snap-revision": fmt.Sprintf("%d", origSnapRev.SnapRevision()+1), "developer-id": origSnapRev.DeveloperID(), "timestamp": time.Now().Format(time.RFC3339), } a, err = db.Sign(asserts.SnapRevisionType, headers, nil, systestkeys.TestStoreKeyID) if err != nil { return err } return writeAssert(a, targetDir) }