fix: prevent bash set-u failure on empty notes array in alert path

f4c5553c63ad144d3e5571b49eafde78c95075ca · 2026-09-09 04:01:39 -0700 · steve@designerwallcoverings.com

macOS /bin/bash 3.2 + set -u fails on ${notes[*]} when empty.
Change to ${notes[*]:-} so WARN with zero notes emits a valid alert
rather than crashing the alert block. All 8 verification cases pass.
TK-11129

Files touched

M watchdog.sh

Diff

commit f4c5553c63ad144d3e5571b49eafde78c95075ca
Author: steve@designerwallcoverings.com <steve@designerwallcoverings.com>
Date:   Wed Sep 9 04:01:39 2026 -0700

    fix: prevent bash set-u failure on empty notes array in alert path
    
    macOS /bin/bash 3.2 + set -u fails on ${notes[*]} when empty.
    Change to ${notes[*]:-} so WARN with zero notes emits a valid alert
    rather than crashing the alert block. All 8 verification cases pass.
    TK-11129
---
 watchdog.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/watchdog.sh b/watchdog.sh
index de2b5cf..80946b9 100755
--- a/watchdog.sh
+++ b/watchdog.sh
@@ -176,7 +176,7 @@ PREVF="$DATA/.prev_verdict"
 prev=$(cat "$PREVF" 2>/dev/null || echo "")
 echo "$verdict" > "$PREVF"
 if [ "$verdict" != "PASS" ]; then
-  echo "$(now) $verdict :: $head :: ${notes[*]}" >> "$ALERTS"
+  echo "$(now) $verdict :: $head :: ${notes[*]:-}" >> "$ALERTS"
   if [ "$verdict" != "$prev" ]; then
     osascript -e "display notification \"$head\" with title \"exo watchdog: $verdict\"" >/dev/null 2>&1 || true
   fi

← 3610137 auto-data-snapshot: 2026-09-09T03:37:19 (1 data files) — dat · back to Exo Cluster Watchdog · auto-data-snapshot: 2026-09-09T04:09:05 (1 data files) — dat cfdf851 →