Fix deleted branch isn't removed when push the branch again (#9516)

models/branches.go

@@ -525,6 +525,12 @@ func (deletedBranch *DeletedBranch) LoadUser() {
 	deletedBranch.DeletedBy = user
 }
 
+// RemoveDeletedBranch removes all deleted branches
+func RemoveDeletedBranch(repoID int64, branch string) error {
+	_, err := x.Where("repo_id=? AND name=?", repoID, branch).Delete(new(DeletedBranch))
+	return err
+}
+
 // RemoveOldDeletedBranches removes old deleted branches
 func RemoveOldDeletedBranches(ctx context.Context) {
 	// Nothing to do for shutdown or terminate

modules/repofiles/update.go

@@ -520,6 +520,12 @@ func PushUpdates(repo *models.Repository, optsList []*PushUpdateOptions) error {
 			}
 		}
 
+		if opts.NewCommitID != git.EmptySHA {
+			if err = models.RemoveDeletedBranch(repo.ID, opts.Branch); err != nil {
+				log.Error("models.RemoveDeletedBranch %s/%s failed: %v", repo.ID, opts.Branch, err)
+			}
+		}
+
 		log.Trace("TriggerTask '%s/%s' by %s", repo.Name, opts.Branch, pusher.Name)
 
 		go pull_service.AddTestPullRequestTask(pusher, repo.ID, opts.Branch, true)