From 9ef659a016d4ffeac931291984a4c71f9527a747 Mon Sep 17 00:00:00 2001
From: Runxi Yu
Date: Fri, 14 Nov 2025 00:00:00 +0000
Subject: Read types and sizes without inflating entire object

---
 obj.go | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'obj.go')

diff --git a/obj.go b/obj.go
index 5ce639f9..d3d69c25 100644
--- a/obj.go
+++ b/obj.go
@@ -117,3 +117,22 @@ func (repo *Repository) ReadObject(id Hash) (Object, error) {
 	}
 	return obj, err
 }
+
+// ReadObjectTypeSize reports the object type and size without inflating the body.
+func (repo *Repository) ReadObjectTypeSize(id Hash) (ObjType, int64, error) {
+	ty, size, err := repo.looseTypeSize(id)
+	if err == nil {
+		return ty, size, nil
+	}
+	if !errors.Is(err, ErrNotFound) {
+		return ObjInvalid, 0, err
+	}
+	loc, err := repo.packIndexFind(id)
+	if err != nil {
+		if errors.Is(err, ErrNotFound) {
+			return ObjInvalid, 0, ErrInvalidObject
+		}
+		return ObjInvalid, 0, err
+	}
+	return repo.packTypeSizeAtLocation(loc, nil)
+}
-- 
cgit v1.3.1-10-gc9f91