1 files changed, 30 insertions, 0 deletions
diff --git a/services/repository/cache.go b/services/repository/cache.go
new file mode 100644
index 0000000..b0811a9
--- /dev/null
+++ b/services/repository/cache.go
@@ -0,0 +1,30 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repository
+
+import (
+	"context"
+
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/cache"
+	"code.gitea.io/gitea/modules/git"
+)
+
+// CacheRef cachhe last commit information of the branch or the tag
+func CacheRef(ctx context.Context, repo *repo_model.Repository, gitRepo *git.Repository, fullRefName git.RefName) error {
+	commit, err := gitRepo.GetCommit(fullRefName.String())
+	if err != nil {
+		return err
+	}
+
+	if gitRepo.LastCommitCache == nil {
+		commitsCount, err := cache.GetInt64(repo.GetCommitsCountCacheKey(fullRefName.ShortName(), true), commit.CommitsCount)
+		if err != nil {
+			return err
+		}
+		gitRepo.LastCommitCache = git.NewLastCommitCache(commitsCount, repo.FullName(), gitRepo, cache.GetCache())
+	}
+
+	return commit.CacheCommit(ctx)
+}