2 files changed, 33 insertions, 0 deletions
diff --git a/modules/gitrepo/branch.go b/modules/gitrepo/branch.go
index 3336036248..9c4bdc5bdf 100644
--- a/modules/gitrepo/branch.go
+++ b/modules/gitrepo/branch.go
@@ -47,3 +47,21 @@ func GetDefaultBranch(ctx context.Context, repo Repository) (string, error) {
 func GetWikiDefaultBranch(ctx context.Context, repo Repository) (string, error) {
 	return git.GetDefaultBranch(ctx, wikiPath(repo))
 }
+
+// IsReferenceExist returns true if given reference exists in the repository.
+func IsReferenceExist(ctx context.Context, repo Repository, name string) bool {
+	return git.IsReferenceExist(ctx, repoPath(repo), name)
+}
+
+func IsWikiReferenceExist(ctx context.Context, repo Repository, name string) bool {
+	return git.IsReferenceExist(ctx, wikiPath(repo), name)
+}
+
+// IsBranchExist returns true if given branch exists in the repository.
+func IsBranchExist(ctx context.Context, repo Repository, name string) bool {
+	return IsReferenceExist(ctx, repo, git.BranchPrefix+name)
+}
+
+func IsWikiBranchExist(ctx context.Context, repo Repository, name string) bool {
+	return IsWikiReferenceExist(ctx, repo, git.BranchPrefix+name)
+}
diff --git a/modules/gitrepo/tag.go b/modules/gitrepo/tag.go
new file mode 100644
index 0000000000..58ed204a99
--- /dev/null
+++ b/modules/gitrepo/tag.go
@@ -0,0 +1,15 @@
+// Copyright 2025 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package gitrepo
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/modules/git"
+)
+
+// IsTagExist returns true if given tag exists in the repository.
+func IsTagExist(ctx context.Context, repo Repository, name string) bool {
+	return IsReferenceExist(ctx, repo, git.TagPrefix+name)
+}