From 2a93f0626e2046c5ecba2445e8ead019734e9e3e Mon Sep 17 00:00:00 2001
From: AztecBot <tech@aztec-labs.com>
Date: Wed, 4 Mar 2026 18:37:01 +0000
Subject: [PATCH] fix: handle unbound variable in check_doc_references.sh

The FILE_TO_DOCS_MAP associative array access on line 235 fails with
'set -u' (nounset) when the key doesn't exist yet. Using ${...:-}
provides a default empty value to prevent the error.
---
 docs/scripts/check_doc_references.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/scripts/check_doc_references.sh b/docs/scripts/check_doc_references.sh
index cf69741956e1..036ab53d4309 100755
--- a/docs/scripts/check_doc_references.sh
+++ b/docs/scripts/check_doc_references.sh
@@ -232,7 +232,7 @@ while IFS= read -r ref_file; do
     while IFS='|' read -r src_file doc_file; do
       if [[ "$src_file" == "$ref_file" ]]; then
         # Store in associative array (append to existing value if key exists)
-        if [[ -n "${FILE_TO_DOCS_MAP[$ref_file]}" ]]; then
+        if [[ -n "${FILE_TO_DOCS_MAP[$ref_file]:-}" ]]; then
           FILE_TO_DOCS_MAP[$ref_file]="${FILE_TO_DOCS_MAP[$ref_file]}|${doc_file}"
         else
           FILE_TO_DOCS_MAP[$ref_file]="$doc_file"