assets/ -> resources/assets/

resources/assets/build/util/addHotMiddleware.js

@@ -0,0 +1,16 @@
+/**
+ * Loop through webpack entry
+ * and add the hot middleware
+ * @param  {Object} entry webpack entry
+ * @return {Object} entry with hot middleware
+ */
+module.exports = (entry) => {
+  const results = {};
+  const hotMiddlewareScript = 'webpack-hot-middleware/client?timeout=20000&reload=true';
+
+  Object.keys(entry).forEach((name) => {
+    results[name] = Array.isArray(entry[name]) ? entry[name].slice(0) : [entry[name]];
+    results[name].unshift(hotMiddlewareScript);
+  });
+  return results;
+};