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

Author: lunny

models/branches.go

@@ -480,6 +480,12 @@ 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() {
 	log.Trace("Doing: DeletedBranchesCleanup")

modules/repofiles/update.go

@@ -453,10 +453,15 @@ func PushUpdate(repo *models.Repository, branch string, opts models.PushUpdateOp
 			}
 		}
 	} else if !isDelRef {
+		branchName := opts.RefFullName[len(git.BranchPrefix):]
+		if err = models.RemoveDeletedBranch(repo.ID, branchName); err != nil {
+			log.Error("models.RemoveDeletedBranch %s/%s failed: %v", repo.ID, branchName, err)
+		}
+
 		// If is branch reference
 
 		// Clear cache for branch commit count
-		cache.Remove(repo.GetCommitsCountCacheKey(opts.RefFullName[len(git.BranchPrefix):], true))
+		cache.Remove(repo.GetCommitsCountCacheKey(branchName, true))
 
 		newCommit, err := gitRepo.GetCommit(opts.NewCommitID)
 		if err != nil {