Initial local backup snapshot

scripts/maintenance-flag.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+TARGET="${1:-status}"
+FLAG_PATH="${MAINTENANCE_FLAG_PATH:-$(pwd)/uploads/system/maintenance.flag}"
+
+mkdir -p "$(dirname "$FLAG_PATH")"
+
+case "$TARGET" in
+  on|enable)
+    touch "$FLAG_PATH"
+    echo "maintenance=on ($FLAG_PATH)"
+    ;;
+  off|disable)
+    rm -f "$FLAG_PATH"
+    echo "maintenance=off ($FLAG_PATH)"
+    ;;
+  status)
+    if [[ -f "$FLAG_PATH" ]]; then
+      echo "maintenance=on ($FLAG_PATH)"
+    else
+      echo "maintenance=off ($FLAG_PATH)"
+    fi
+    ;;
+  *)
+    echo "Usage: ./scripts/maintenance-flag.sh [on|off|status]" >&2
+    exit 1
+    ;;
+esac