1 files changed, 30 insertions, 0 deletions
diff --git a/cmd/gitaly-git2go/commit/update_file.go b/cmd/gitaly-git2go/commit/update_file.go
new file mode 100644
index 000000000..cea5d629b
--- /dev/null
+++ b/cmd/gitaly-git2go/commit/update_file.go
@@ -0,0 +1,30 @@
+//go:build static && system_libgit2
+
+package commit
+
+import (
+	git "github.com/libgit2/git2go/v33"
+	"gitlab.com/gitlab-org/gitaly/v15/internal/git2go"
+)
+
+func applyUpdateFile(action git2go.UpdateFile, index *git.Index) error {
+	entry, err := index.EntryByPath(action.Path, 0)
+	if err != nil {
+		if git.IsErrorCode(err, git.ErrorCodeNotFound) {
+			return git2go.FileNotFoundError(action.Path)
+		}
+
+		return err
+	}
+
+	oid, err := git.NewOid(action.OID)
+	if err != nil {
+		return err
+	}
+
+	return index.Add(&git.IndexEntry{
+		Path: action.Path,
+		Mode: entry.Mode,
+		Id:   oid,
+	})
+}