From fd55beb6188350974afd93dfffcef973ebdad6e8 Mon Sep 17 00:00:00 2001
From: Runxi Yu
Date: Sat, 21 Feb 2026 20:40:05 +0800
Subject: objectstore/packed: Don't use full delta reconstruction just to read
 headers

---
 objectstore/packed/entry_parse.go | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'objectstore/packed/entry_parse.go')

diff --git a/objectstore/packed/entry_parse.go b/objectstore/packed/entry_parse.go
index 69ef80e6..56287386 100644
--- a/objectstore/packed/entry_parse.go
+++ b/objectstore/packed/entry_parse.go
@@ -56,6 +56,12 @@ func parseEntryMeta(pack *packFile, algo objectid.Algorithm, offset uint64) (ent
 			return zero, fmt.Errorf("objectstore/packed: pack %q has invalid ofs-delta base", pack.name)
 		}
 		meta.baseOfs = offset - entry.OfsBaseDistance
+	case objecttype.TypeCommit, objecttype.TypeTree, objecttype.TypeBlob, objecttype.TypeTag:
+		// Base object types do not have delta base metadata.
+	case objecttype.TypeInvalid, objecttype.TypeFuture:
+		return zero, fmt.Errorf("objectstore/packed: pack %q has unsupported entry type %d", pack.name, meta.ty)
+	default:
+		return zero, fmt.Errorf("objectstore/packed: pack %q has unsupported entry type %d", pack.name, meta.ty)
 	}
 	return meta, nil
 }
-- 
cgit v1.3.1-10-gc9f91