1 files changed, 28 insertions, 0 deletions
diff --git a/cmd/gitaly-git2go/util.go b/cmd/gitaly-git2go/util.go
new file mode 100644
index 000000000..7a94371c3
--- /dev/null
+++ b/cmd/gitaly-git2go/util.go
@@ -0,0 +1,28 @@
+//go:build static && system_libgit2
+
+package main
+
+import (
+	"fmt"
+
+	git "github.com/libgit2/git2go/v33"
+)
+
+func lookupCommit(repo *git.Repository, ref string) (*git.Commit, error) {
+	object, err := repo.RevparseSingle(ref)
+	if err != nil {
+		return nil, fmt.Errorf("lookup commit %q: %w", ref, err)
+	}
+
+	peeled, err := object.Peel(git.ObjectCommit)
+	if err != nil {
+		return nil, fmt.Errorf("lookup commit %q: peel: %w", ref, err)
+	}
+
+	commit, err := peeled.AsCommit()
+	if err != nil {
+		return nil, fmt.Errorf("lookup commit %q: as commit: %w", ref, err)
+	}
+
+	return commit, nil
+}