updating latest

gulpfile.js

@@ -0,0 +1,20 @@
+const webpack = require("webpack");
+const webpackConfig = require("./webpack.prod");
+
+function buildTheme(cb) {
+  return new Promise((resolve, reject) => {
+    webpack(webpackConfig, (err, stats) => {
+      if (err) {
+        return reject(err);
+      }
+      if (stats.hasErrors()) {
+        return reject(new Error(stats.compilation.errors.join("\n")));
+      }
+      resolve();
+    });
+  });
+}
+
+module.exports = {
+  buildTheme: buildTheme,
+};