snapshot of https://github.com/go-gitea/gitea.git (main, 2026-09-15; blobs > 131072B omitted)

modules/git/repo_commitgraph_gogit.go

@@ -0,0 +1,38 @@
+// Copyright 2019 The Gitea Authors.
+// All rights reserved.
+// SPDX-License-Identifier: MIT
+
+//go:build gogit
+
+package git
+
+import (
+	"os"
+	"path/filepath"
+
+	"gitea.dev/modules/git/gitrepo"
+	"gitea.dev/modules/log"
+
+	commitgraph "github.com/go-git/go-git/v5/plumbing/format/commitgraph/v2"
+	cgobject "github.com/go-git/go-git/v5/plumbing/object/commitgraph"
+)
+
+// CommitNodeIndex returns the index for walking commit graph
+func (repo *Repository) CommitNodeIndex() (_ cgobject.CommitNodeIndex, closer func()) {
+	indexPath := filepath.Join(gitrepo.RepoLocalPath(repo), "objects", "info", "commit-graph")
+	file, err := os.Open(indexPath)
+	if err == nil {
+		var index commitgraph.Index
+		index, err = commitgraph.OpenFileIndex(file)
+		if err == nil {
+			return cgobject.NewGraphCommitNodeIndex(index, repo.gogitRepo.Storer), func() { _ = file.Close() }
+		}
+		_ = file.Close()
+	}
+
+	if !os.IsNotExist(err) {
+		log.Warn("Unable to read commit-graph for %s: %v", repo.LogString(), err)
+	}
+
+	return cgobject.NewObjectCommitNodeIndex(repo.gogitRepo.Storer), func() {}
+}