From 0bdbe669571f9844ca25d269dedb4a2084f0cf3b Mon Sep 17 00:00:00 2001
From: licjun_aws <licjun@amazon.com>
Date: Thu, 2 Apr 2026 13:00:25 -0700
Subject: [PATCH] fix: restrict cfn-lint schema update to us-east-1 to avoid
 pickle error

cfn-lint -u fails with a multiprocessing pickle error when updating
schemas for all regions. Restricting to us-east-1 avoids the issue
since schema structure validation doesn't require region-specific schemas.

See https://github.com/aws-cloudformation/cfn-lint/issues/4379
---
 bin/run_cfn_lint.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/bin/run_cfn_lint.sh b/bin/run_cfn_lint.sh
index 92c448eac..0ce5bfb3f 100755
--- a/bin/run_cfn_lint.sh
+++ b/bin/run_cfn_lint.sh
@@ -11,10 +11,12 @@ fi
 
 "${VENV}/bin/python" -m pip install cfn-lint --upgrade --quiet
 # update cfn schema with retry logic (can fail due to network issues)
+# --regions us-east-1 avoids a cfn-lint bug where updating all regions causes a
+# multiprocessing pickle error. See https://github.com/aws-cloudformation/cfn-lint/issues/4379
 MAX_RETRIES=3
 RETRY_COUNT=0
 while [ $RETRY_COUNT -lt $MAX_RETRIES ]; do
-    if "${VENV}/bin/cfn-lint" -u; then
+    if "${VENV}/bin/cfn-lint" -u --regions us-east-1; then
         echo "Successfully updated cfn-lint schema"
         break
     else