api: support listing repository tags (#6656)

Co-authored-by: zhouzhibo <zhouzhibo>
Co-authored-by: Joe Chen <jc@unknwon.io>

1 files changed, 52 insertions, 0 deletions

diff --git a/internal/db/repo_tag.go b/internal/db/repo_tag.go
new file mode 100644
index 00000000..cc6721fc
--- /dev/null
+++ b/internal/db/repo_tag.go
@@ -0,0 +1,52 @@
+// Copyright 2021 The Gogs Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package db
+
+import (
+	"fmt"
+
+	"github.com/gogs/git-module"
+)
+
+type Tag struct {
+	RepoPath string
+	Name     string
+
+	IsProtected bool
+	Commit      *git.Commit
+}
+
+func (ta *Tag) GetCommit() (*git.Commit, error) {
+	gitRepo, err := git.Open(ta.RepoPath)
+	if err != nil {
+		return nil, fmt.Errorf("open repository: %v", err)
+	}
+	return gitRepo.TagCommit(ta.Name)
+}
+
+func GetTagsByPath(path string) ([]*Tag, error) {
+	gitRepo, err := git.Open(path)
+	if err != nil {
+		return nil, fmt.Errorf("open repository: %v", err)
+	}
+
+	names, err := gitRepo.Tags()
+	if err != nil {
+		return nil, fmt.Errorf("list tags")
+	}
+
+	tags := make([]*Tag, len(names))
+	for i := range names {
+		tags[i] = &Tag{
+			RepoPath: path,
+			Name:     names[i],
+		}
+	}
+	return tags, nil
+}
+
+func (repo *Repository) GetTags() ([]*Tag, error) {
+	return GetTagsByPath(repo.RepoPath())
+}