From 3e5c15c17253031c88111d15ff05007c349ba593 Mon Sep 17 00:00:00 2001
From: Nicholas Dudfield <ndudfield@gmail.com>
Date: Thu, 30 Oct 2025 09:25:21 +0700
Subject: [PATCH] fix(cache): handle empty cache gracefully in [ci-clear-cache]

When [ci-clear-cache] is used but no cache exists yet, grep returns
exit code 1 which causes script failure with set -e.

Add || echo "0" to handle case where no deltas exist to delete.
---
 .github/actions/xahau-actions-cache-restore/action.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/actions/xahau-actions-cache-restore/action.yml b/.github/actions/xahau-actions-cache-restore/action.yml
index 712dae303..37daea123 100644
--- a/.github/actions/xahau-actions-cache-restore/action.yml
+++ b/.github/actions/xahau-actions-cache-restore/action.yml
@@ -106,7 +106,7 @@ runs:
 
           # Delete all delta layers for this key
           echo "Deleting all delta layers matching: ${CACHE_KEY}-delta-*"
-          DELTA_COUNT=$(aws s3 ls "s3://${S3_BUCKET}/" --region "${S3_REGION}" | grep "${CACHE_KEY}-delta-" | wc -l)
+          DELTA_COUNT=$(aws s3 ls "s3://${S3_BUCKET}/" --region "${S3_REGION}" | grep "${CACHE_KEY}-delta-" | wc -l || echo "0")
           if [ "${DELTA_COUNT}" -gt 0 ]; then
             aws s3 rm "s3://${S3_BUCKET}/" --recursive \
               --exclude "*" \