From c00304fd39b2fa444cd67bad3f3ddf05c363644f Mon Sep 17 00:00:00 2001
From: Kohei Tokunaga <ktokunaga.mail@gmail.com>
Date: Fri, 13 Dec 2024 23:05:37 +0900
Subject: [PATCH] Call callback only for unlazied contents

Signed-off-by: Kohei Tokunaga <ktokunaga.mail@gmail.com>
---
 cache/refs.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cache/refs.go b/cache/refs.go
index 235fa0c66c44..ad5edf5c6b16 100644
--- a/cache/refs.go
+++ b/cache/refs.go
@@ -848,6 +848,11 @@ func getBlobWithCompression(ctx context.Context, cs content.Store, desc ocispecs
 }
 
 func walkBlob(ctx context.Context, cs content.Store, desc ocispecs.Descriptor, f func(ocispecs.Descriptor) bool) error {
+	if _, err := cs.Info(ctx, desc.Digest); errors.Is(err, cerrdefs.ErrNotFound) {
+		return nil // this blob doesn't exist in the content store. Don't call the callback.
+	} else if err != nil {
+		return err
+	}
 	if !f(desc) {
 		return nil
 	}