Add environment variable to disable Google Analytics.

Dockerfile

@@ -1,5 +1,7 @@
 FROM node:latest
 MAINTAINER Alex Kern <alex@kern.io>
+
+ENV DISABLE_GA no
  
 COPY . ./
 RUN npm install && npm run build

lib/components/App.js

@@ -5,9 +5,14 @@ import React from "react";
 import SupportStore from "../stores/SupportStore";
 import { RouteHandler } from "react-router";
 import ga from "react-google-analytics";
-
+ 
-ga("create", "UA-62785624-1", "auto");
+if (process.env.DISABLE_GA != 'yes') {
-ga("send", "pageview");
+  ga("create", "UA-62785624-1", "auto");
+  ga("send", "pageview");
+  console.log("Google Analytics ON");
+}
+else
+  console.log("Google Analytics OFF");
 
 export default class App extends React.Component {
   constructor() {
@@ -89,7 +94,7 @@ export default class App extends React.Component {
             </p>
           </footer>
           <script>FilePizza()</script>
-          <ga.Initializer />
+          { process.env.DISABLE_GA != 'yes' && <ga.Initializer /> }
         </body>
       </html>
     );

package.json

@@ -67,6 +67,9 @@
     "webpack-dev-middleware": "^1.6.1",
     "webrtcsupport": "^2.2.0",
     "winston": "^1.0.1",
-    "xkcd-password": "^1.2.0"
+    "xkcd-password": "^1.2.0",
+    "noop-loader": "*",
+    "null-loader": "*",
+    "stylus": "^0.50.0"
   }
 }

webpack.config.js

@@ -1,4 +1,5 @@
 const nib = require("nib");
+const webpack = require('webpack')
 
 module.exports = {
   entry: "./lib/client",
@@ -26,11 +27,24 @@ module.exports = {
     ]
   },
 
+  plugins: [
+    new webpack.DefinePlugin({
+      'process.env': {
+        'DISABLE_GA': process.env.DISABLE_GA,
+      }
+    })
+  ],
+
   node: {
     fs: "empty"
   },
 
   stylus: {
     use: [nib()]
-  }
+  },
+
+  rules: [{
+    test: /react-google-analytics/,
+    use: process.env.DISABLE_GA ? 'null-loader' : 'noop-loader'
+  }]
 };