From ca719713fc0899440823796aaf8c2cbd88707728 Mon Sep 17 00:00:00 2001
From: Runxi Yu
Date: Thu, 5 Mar 2026 21:21:22 +0800
Subject: format/pack/ingest: Fix exhaustive

---
 format/pack/ingest/ingest_test.go |  2 +-
 format/pack/ingest/resolve.go     | 10 ++++++++++
 format/pack/ingest/stream_scan.go |  7 +++++++
 3 files changed, 18 insertions(+), 1 deletion(-)

(limited to 'format')

diff --git a/format/pack/ingest/ingest_test.go b/format/pack/ingest/ingest_test.go
index 35f19b43..0e51e0fd 100644
--- a/format/pack/ingest/ingest_test.go
+++ b/format/pack/ingest/ingest_test.go
@@ -15,7 +15,7 @@ import (
 )
 
 func fixtureAlgorithmDir(algo objectid.Algorithm) string {
-	switch algo {
+	switch algo { //nolint:exhaustive
 	case objectid.AlgorithmSHA1:
 		return "sha1"
 	case objectid.AlgorithmSHA256:
diff --git a/format/pack/ingest/resolve.go b/format/pack/ingest/resolve.go
index e357e1aa..2347dbd5 100644
--- a/format/pack/ingest/resolve.go
+++ b/format/pack/ingest/resolve.go
@@ -129,6 +129,16 @@ func resolveRecord(state *ingestState, idx int, visiting map[int]struct{}) (obje
 		} else {
 			return objecttype.TypeInvalid, nil, errExternalThinBase
 		}
+	case objecttype.TypeInvalid,
+		objecttype.TypeCommit,
+		objecttype.TypeTree,
+		objecttype.TypeBlob,
+		objecttype.TypeTag,
+		objecttype.TypeFuture:
+		return objecttype.TypeInvalid, nil, &ErrMalformedPackEntry{
+			Offset: record.offset,
+			Reason: "unsupported delta type",
+		}
 	default:
 		return objecttype.TypeInvalid, nil, &ErrMalformedPackEntry{
 			Offset: record.offset,
diff --git a/format/pack/ingest/stream_scan.go b/format/pack/ingest/stream_scan.go
index 97bb0ae8..56ee5d55 100644
--- a/format/pack/ingest/stream_scan.go
+++ b/format/pack/ingest/stream_scan.go
@@ -161,6 +161,13 @@ func scanOneEntry(state *ingestState, startOffset uint64) (uint64, error) {
 			baseObject: record.baseObject,
 			recordIdx:  recordIdx,
 		})
+	case objecttype.TypeInvalid,
+		objecttype.TypeCommit,
+		objecttype.TypeTree,
+		objecttype.TypeBlob,
+		objecttype.TypeTag,
+		objecttype.TypeFuture:
+	default:
 	}
 
 	return endOffset, nil
-- 
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