Issue 4670 - Add a new build type for Gecko-based WebExtensions

templates/geckoInfo.js.tmpl

Index: templates/geckoInfo.js.tmpl
===================================================================
new file mode 100644
--- /dev/null
+++ b/templates/geckoInfo.js.tmpl
@@ -0,0 +1,28 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+(function() {
+  let info = require.scopes.info = {
+    addonName: {{ metadata.get('general', 'basename')|json }},
+    addonVersion: {{ version|json }},
+
+    application: "unknown",
+    applicationVersion: "0",
+
+    platform: "gecko",
+    platformVersion: "0"
+  };
+
+  let match = /\brv:(\d+(?:\.\d+)?)\b/.exec(navigator.userAgent);
+  if (match)
+    info.platformVersion = match[1];
+
+  browser.runtime.getBrowserInfo().then(function(browserInfo)
+  {
+    info.application = browserInfo.name.toLowerCase();
+    info.applicationVersion = browserInfo.version;
+  });
+})();