Fix: Replace unsupported restic flags for 0.18.1 compatibilityv1.2

- Replace --lock-retry-after and --lock-stale-timeout with --retry-lock
- Fix shell script quoting issues (SC2086, SC2046)
- All tests passing: local, remote, lint, format

1 files changed, 4 insertions, 8 deletions

diff --git a/restic_backup.sh b/restic_backup.sh
index cc749e6..b68d299 100755
--- a/restic_backup.sh
+++ b/restic_backup.sh
@@ -37,28 +37,25 @@ restic backup \
 	--exclude-file "${CONFIG_DIR}/excludes" \
 	--password-file "${RESTIC_PASSWORD_FILE}" \
 	--option rclone.timeout=20m \
-	--lock-retry-after 5m \
-	--lock-stale-timeout 24h \
+	--retry-lock 5m \
 	--tag daily || {
 	echo "Error: Restic backup failed." >&2
 	notify "Restic Backup ($(whoami)@$(hostname))" "Backup phase failed!" 8
 	exit 1
 }
 
-
 # Prune old snapshots - only on specific hours to avoid conflicts
 HOUR=$(date +%H)
 # Only prune between 2-4 AM to reduce multi-device conflicts
-if [ $HOUR -ge 2 ] && [ $HOUR -lt 4 ]; then
+if [ "$HOUR" -ge 2 ] && [ "$HOUR" -lt 4 ]; then
 	# Add random delay to stagger multiple devices
-	sleep $(shuf -i 0-1800 -n 1)  # 0-30 minutes random delay
+	sleep "$(shuf -i 0-1800 -n 1)" # 0-30 minutes random delay
 	echo "Applying Restic retention policy and pruning old snapshots..."
 	restic forget \
 		--repo "${RESTIC_REPOSITORY}" \
 		--password-file "${RESTIC_PASSWORD_FILE}" \
 		--option rclone.timeout=20m \
-		--lock-retry-after 5m \
-		--lock-stale-timeout 24h \
+		--retry-lock 5m \
 		--keep-daily 7 \
 		--keep-weekly 4 \
 		--keep-monthly 6 \
@@ -72,5 +69,4 @@ else
 	echo "Skipping prune - only running between 2-4 AM to avoid multi-device conflicts"
 fi
 
-
 echo "--- Restic Backup finished at $(date) ---"