Move git references checking to gitrepo packages to reduce expose of repository path (#33891)

modules/git/repo_tag.go

@@ -5,7 +5,6 @@
 package git
 
 import (
-	"context"
 	"fmt"
 	"io"
 	"strings"
@@ -17,11 +16,6 @@ import (
 // TagPrefix tags prefix path on the repository
 const TagPrefix = "refs/tags/"
 
-// IsTagExist returns true if given tag exists in the repository.
-func IsTagExist(ctx context.Context, repoPath, name string) bool {
-	return IsReferenceExist(ctx, repoPath, TagPrefix+name)
-}
-
 // CreateTag create one tag in the repository
 func (repo *Repository) CreateTag(name, revision string) error {
 	_, _, err := NewCommand("tag").AddDashesAndList(name, revision).RunStdString(repo.Ctx, &RunOpts{Dir: repo.Path})

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)
+}

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)
+}