添加当热更新失败后，退出游戏。当再次进入游戏时，清除临时文件

HotUpdateDemo/assets/Script/HotUpdate.js

@@ -29,6 +29,9 @@ cc.Class({
      * @param {*} nextFn 
      */
     init(nextFn, progressFn, failedFn) {
+        //如果之前热更新失败。清除临时文件
+        this.clearHotupdateCacheTemp();
+
         this.nextFn = nextFn;
         this.progressFn = progressFn;
         this.failedFn = failedFn;
@@ -214,7 +217,7 @@ cc.Class({
                 console.log('ERROR_NO_LOCAL_MANIFEST');
                 break;
             case jsb.EventAssetsManager.ERROR_DOWNLOAD_MANIFEST:
-                /*1下载配置文件错误*/
+            /*1下载配置文件错误*/
             case jsb.EventAssetsManager.ERROR_PARSE_MANIFEST:
                 /*2 解析文件错误*/
                 console.log('ERROR_PARSE_MANIFEST');
@@ -256,7 +259,7 @@ cc.Class({
     updateCb: function (event) {
         var needRestart = false;
         var failed = false;
-		var aleardyUpdate = false;
+        var aleardyUpdate = false;
 
         switch (event.getEventCode()) {
             case jsb.EventAssetsManager.ERROR_NO_LOCAL_MANIFEST:
@@ -275,7 +278,7 @@ cc.Class({
             case jsb.EventAssetsManager.ALREADY_UP_TO_DATE:
                 // this.panel.info.string = 'Already up to date with the latest remote version.';
                 failed = true;
-				aleardyUpdate = true;
+                aleardyUpdate = true;
                 break;
             case jsb.EventAssetsManager.UPDATE_FINISHED:
                 // console.log('UPDATE_FINISHED');
@@ -297,7 +300,7 @@ cc.Class({
                 break;
         }
 
-         //下载失败
+        //下载失败
         if (failed) {
             // console.log('Hotupdate failure');
             this.onFailure(ErrCode.updateFailed);
@@ -321,12 +324,19 @@ cc.Class({
         }
     },
 
-    //
+    //清除热更新文件
     clearHotupdateCache() {
         let storagePath = ((jsb.fileUtils ? jsb.fileUtils.getWritablePath() : '/') + this._hotUpdateName);
         jsb.fileUtils.removeDirectory(storagePath);
     },
 
+    //清除临时热更新文件
+    clearHotupdateCacheTemp() {
+        console.log('temp file clear');
+        let storagePath = ((jsb.fileUtils ? jsb.fileUtils.getWritablePath() : '/') + this._hotUpdateName + '_temp');
+        jsb.fileUtils.removeDirectory(storagePath);
+    },
+
     // update (dt) {},
 
     onDestroy() {