Fix bug in travis CI (#80)

Author: kazuhitoyokoi

Gruntfile.js

@@ -103,8 +103,11 @@ module.exports = function (grunt) {
             generateNode_lowerCase: {
                 command: 'node bin/node-red-nodegen.js samples/lower-case.js -o ./nodegen'
             },
+            getSwagger_swaggerPetstore: {
+                command: 'node bin/getswagger.js'
+            },
             generateNode_swaggerPetstore: {
-                command: 'node bin/node-red-nodegen.js http://petstore.swagger.io/v2/swagger.json -o ./nodegen'
+                command: 'node bin/node-red-nodegen.js samples/swagger.json -o ./nodegen'
             }
         },
         simplemocha: {

bin/getswagger.js

@@ -0,0 +1,34 @@
+#!/usr/bin/env node
+
+/**
+ * Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+var fs = require('fs');
+var request = require('request');
+
+request("http://petstore.swagger.io/v2/swagger.json", function (error, response, body) {
+    if (!error) {
+        try {
+            var swagger = JSON.parse(body);
+            swagger.schemes = ["http"];
+            fs.writeFileSync(__dirname + "/../samples/swagger.json", JSON.stringify(swagger));
+        } catch (error2) {
+            console.error(error2);
+        }
+    } else {
+        console.error(error);
+    }
+});