M git/diff.go

@@ -47,28 +47,27 @@ if err != nil {
 		return nil, fmt.Errorf("commit object: %w", err)
 	}
 
-	patch := &object.Patch{}
 	commitTree, err := c.Tree()
-	parent := &object.Commit{}
-	if err == nil {
-		parentTree := &object.Tree{}
-		if c.NumParents() != 0 {
-			parent, err = c.Parents().Next()

… preview truncated