Merge 1219e59 into 29905ad

package.json

@@ -55,6 +55,7 @@
     "nwmatcher": "1.3.6",
     "phantomjs-prebuilt": "2.1.14",
     "svgo": "0.7.2",
+    "sw-precache-webpack-plugin": "0.11.4",
     "swagger-parser": "3.4.1",
     "tslint": "5.3.2",
     "webpack-dev-server": "2.4.1",

templates/zerver/home.html

@@ -134,5 +134,6 @@ <h4>{{ _('Nobody has talked about that yet!') }}</h4>
 {% include "zerver/message_history.html" %}
 {% include "zerver/delete_message.html" %}
 {% include "zerver/compose.html" %}
+{% include "zerver/service_worker.html" %}
 <div id="notifications-area">
 </div>

templates/zerver/service_worker.html

@@ -0,0 +1,10 @@
+<script>
+if ('serviceWorker' in navigator) {
+  window.addEventListener('load', function() {
+    navigator.serviceWorker.register('/static/webpack-bundles/zulip-sw.js')
+    .catch(function(err) {
+      console.log('ServiceWorker registration failed: ', err);
+    });
+  });
+}
+</script>

tools/webpack.config.ts

@@ -1,6 +1,7 @@
 import { resolve } from 'path';
 import * as BundleTracker from 'webpack-bundle-tracker';
 import * as webpack from 'webpack';
+import * as SWPrecacheWebpackPlugin from 'sw-precache-webpack-plugin';
 
 const assets = require('./webpack.assets.json');
 
@@ -11,8 +12,18 @@ interface Config extends webpack.Configuration {
   }
 }
 
+const SW_PRECACHE_CONFIG = {
+  minify: true,
+  cacheId: 'zulip-sw',
+  filename: 'zulip-sw.js',
+  staticFileGlobs: ['*.js', '*.css'],
+  mergeStaticsConfig: true,
+  staticFileGlobsIgnorePatterns: [/.*\.html/, /.*\.map/],
+}; 
+
 export default (env?: string) : Config => {
     const production: boolean = env === "production";
+
     let config: Config = {
         context: resolve(__dirname, "../"),
         entry: assets,
@@ -125,5 +136,7 @@ export default (env?: string) : Config => {
             },
         };
     }
+
+    config.plugins.push(new SWPrecacheWebpackPlugin(SW_PRECACHE_CONFIG));
     return config;
 };