feat(maker): add the deb maker for the linux target

Requires the app's "description" to be non-blank.

package.json

@@ -58,6 +58,7 @@
     "colors": "^1.1.2",
     "commander": "^2.9.0",
     "debug": "^2.3.3",
+    "electron-installer-debian": "^0.4.0",
     "electron-installer-dmg": "^0.1.2",
     "electron-packager": "^8.3.0",
     "electron-winstaller": "^2.5.0",

src/makers/linux/deb.js

@@ -0,0 +1,19 @@
+import installer from 'electron-installer-debian';
+import path from 'path';
+import pify from 'pify';
+
+import { ensureFile } from '../../util/ensure-output';
+
+export default async (dir, appName, forgeConfig) => {
+  const outPath = path.resolve(dir, '../make/debian');
+
+  await ensureFile(outPath);
+  const debianDefaults = {
+    arch: process.arch, // DOES NOT WORK WITH ARM
+    dest: outPath,
+    src: dir,
+  };
+  const debianConfig = Object.assign({}, forgeConfig.electronInstallerDebian, debianDefaults);
+
+  await pify(installer)(debianConfig);
+};

tmpl/package.json

@@ -2,7 +2,7 @@
   "name": "",
   "productName": "",
   "version": "1.0.0",
-  "description": "",
+  "description": "My Electron application description",
   "main": "src/index.js",
   "scripts": {
     "start": "electron-forge start"