fix touch method

lib/scripts.js

@@ -14,3 +14,4 @@ const RedisScript = (scriptName) => {
 }
 
 module.exports.ParityDel = RedisScript('parityDel');
+module.exports.ParityRelock = RedisScript('parityRelock');

lib/warlock.js

@@ -1,10 +1,11 @@
 const UUID = require('uuid');
-const { ParityDel } = require('./scripts');
+const { ParityDel, ParityRelock } = require('./scripts');
 
 module.exports = function (redis) {
   const warlock = {};
 
   const parityDel = ParityDel(redis);
+  const parityRelock = ParityRelock(redis);
 
   warlock.makeKey = function (key) {
     return `${key}:lock`;
@@ -87,23 +88,24 @@ module.exports = function (redis) {
     tryLock();
   };
 
-  warlock.touch = function(key, id, ttl, cb) {
-    cb = cb || function (){};
-
+  warlock.touch = async (key, id, ttl, cb) => {
     if (typeof key !== 'string') {
-      return cb(new Error('lock key must be string'));
+      const e = new Error('lock key must be string');
+      e.id = id;
+      e.key = key;
+      e.ttl = ttl;
+      if (!cb) throw e;
+      return cb(e);
     }
 
-    scripty.loadScriptFile(
-      'parityRelock',
-      __dirname + '/lua/parityRelock.lua',
-      function (err, parityRelock) {
-        if (err) { return cb(err); }
-        return parityRelock.run(3, warlock.makeKey(key), ttl, id, cb);
-      }
-    );
+    try {
+      const result = await parityRelock(3, warlock.makeKey(key), ttl, id);
+      return cb ? cb(null, result) : result;
+    } catch (e) {
+      if (!cb) throw e;
+      return cb(e);
+    }
   };
 
-
   return warlock;
 };