Switch to new auto-update & add linux build

* Remove squirrel hooks (the installing & uninstalling is now
   done by the, er, installer)
 * Switch to electron-auto-update
 * Shorten initial update delay because we no longer need to wait
   for squirrel to release a lock file
 * Change update URLs because windows is now one installer for
   both 32 & 64 bit.
 * Update electron-builder to 10 where NSIS is now the default
   target for Windows.
 * Add linux to the target list, building a deb.
 * Remove sqirrel-specific installation spinner
 * Remove redundant !**/*  from files

electron/src/electron-main.js

@@ -17,13 +17,11 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-// Squirrel on windows starts the app with various flags
-// as hooks to tell us when we've been installed/uninstalled
-// etc.
-const check_squirrel_hooks = require('./squirrelhooks');
-if (check_squirrel_hooks()) return;
-
 const electron = require('electron');
+
+// Auto updater from the 'electron-auto-updater' package for NSIS
+// auto-update support (not the one that comes with electron).
+const autoUpdater = require('electron-auto-updater').autoUpdater;
 const url = require('url');
 
 const VectorMenu = require('./vectormenu');
@@ -45,7 +43,7 @@ const PERMITTED_URL_SCHEMES = [
 ];
 
 const UPDATE_POLL_INTERVAL_MS = 60 * 60 * 1000;
-const INITIAL_UPDATE_DELAY_MS = 30 * 1000;
+const INITIAL_UPDATE_DELAY_MS = 5 * 1000;
 
 let mainWindow = null;
 let appQuitting = false;
@@ -90,12 +88,12 @@ function installUpdate() {
     // for some reason, quitAndInstall does not fire the
     // before-quit event, so we need to set the flag here.
     appQuitting = true;
-    electron.autoUpdater.quitAndInstall();
+    autoUpdater.quitAndInstall();
 }
 
 function pollForUpdates() {
     try {
-        electron.autoUpdater.checkForUpdates();
+        autoUpdater.checkForUpdates();
     } catch (e) {
         console.log("Couldn't check for update", e);
     }
@@ -106,30 +104,19 @@ function startAutoUpdate(update_url) {
         update_url = update_url + '/';
     }
     try {
-        // For reasons best known to Squirrel, the way it checks for updates
-        // is completely different between macOS and windows. On macOS, it
-        // hits a URL that either gives it a 200 with some json or
-        // 204 No Content. On windows it takes a base path and looks for
-        // files under that path.
+        // Since writing, the electron auto update process has changed from being
+        // completely different between platforms to being differently completely
+        // different. On Mac, we set the feed URL here. On Windows, it uses a
+        // yaml file bundled at build time from the 'publish' entry in the
+        // package.json. There is no autoupdate for Linux: it's expected that
+        // the distro will provide it.
         if (process.platform == 'darwin') {
-            // macos only has 64 bit
-            electron.autoUpdater.setFeedURL(update_url + 'macos/');
-        } else if (process.platform == 'win32') {
-            // We split by 32/64 bit too: the builds are different and entirely separate
-            electron.autoUpdater.setFeedURL(update_url + 'win32/' + process.arch + '/');
-        } else {
-            // Squirrel / electron only supports auto-update on these two platforms.
-            // I'm not even going to try to guess which feed style they'd use if they
-            // implemented it on Linux, or if it would be different again.
-            console.log("Auto update not supported on this platform");
+            autoUpdater.setFeedURL(update_url + 'macos/');
         }
         // We check for updates ourselves rather than using 'updater' because we need to
         // do it in the main process (and we don't really need to check every 10 minutes:
         // every hour should be just fine for a desktop app)
         // However, we still let the main window listen for the update events.
-        // We also wait a short time before checking for updates the first time because
-        // of squirrel on windows and it taking a small amount of time to release a
-        // lock file.
         setTimeout(pollForUpdates, INITIAL_UPDATE_DELAY_MS);
         setInterval(pollForUpdates, UPDATE_POLL_INTERVAL_MS);
     } catch (err) {

electron/src/squirrelhooks.js

@@ -1,30 +0,0 @@
-const path = require('path');
-const spawn = require('child_process').spawn;
-const app = require('electron').app;
-
-function run_update_exe(args, done) {
-    const updateExe = path.resolve(path.dirname(process.execPath), '..', 'Update.exe');
-    spawn(updateExe, args, {
-      detached: true
-    }).on('close', done);
-};
-
-function check_squirrel_hooks() {
-    if (process.platform != 'win32') return false;
-
-    const cmd = process.argv[1];
-    const target = path.basename(process.execPath);
-    if (cmd === '--squirrel-install' || cmd === '--squirrel-updated') {
-        run_update_exe(['--createShortcut=' + target + ''], app.quit);
-        return true;
-    } else if (cmd === '--squirrel-uninstall') {
-        run_update_exe(['--removeShortcut=' + target + ''], app.quit);
-        return true;
-    } else if (cmd === '--squirrel-obsolete') {
-        app.quit();
-        return true;
-    }
-    return false;
-}
-
-module.exports = check_squirrel_hooks;

package.json

@@ -35,7 +35,7 @@
     "build:compile": "babel --source-maps -d lib src",
     "build:bundle": "NODE_ENV=production webpack -p --progress",
     "build:bundle:dev": "webpack --optimize-occurence-order --progress",
-    "build:electron": "rimraf electron/dist && npm run clean && npm run build && build -wm --ia32 --x64 && scripts/check-electron.sh",
+    "build:electron": "rimraf electron/dist && npm run clean && npm run build && build -wml --ia32 --x64 && scripts/check-electron.sh",
     "build": "node scripts/babelcheck.js && npm run build:res && npm run build:config && npm run build:emojione && npm run build:css && npm run build:bundle",
     "build:dev": "node scripts/babelcheck.js && npm run build:res && npm run build:config && npm run build:emojione && npm run build:css && npm run build:bundle:dev",
     "dist": "scripts/package.sh",
@@ -58,6 +58,7 @@
     "browser-request": "^0.3.3",
     "classnames": "^2.1.2",
     "draft-js": "^0.8.1",
+    "electron-auto-updater": "^0.6.2",
     "extract-text-webpack-plugin": "^0.9.1",
     "favico.js": "^0.3.10",
     "filesize": "^3.1.2",
@@ -97,7 +98,7 @@
     "catw": "^1.0.1",
     "cpx": "^1.3.2",
     "css-raw-loader": "^0.1.1",
-    "electron-builder": "^7.23.2",
+    "electron-builder": "^10.4.1",
     "emojione": "^2.2.3",
     "expect": "^1.16.0",
     "fs-extra": "^0.30.0",
@@ -134,14 +135,15 @@
     "dereference": true,
     "//files": "We bundle everything, so we only need to include webapp/",
     "files": [
-      "!**/*",
       "electron/src/**",
       "electron/img/**",
+      "node_modules/electron-auto-updater/**",
       "webapp/**",
       "package.json"
     ],
-    "squirrelWindows": {
-      "iconUrl": "https://riot.im/favicon.ico"
+    "linux": {
+      "target": "deb",
+      "maintainer": "support@riot.im"
     }
   },
   "directories": {