feat(installer): add DMG support for macOS installer

src/electron-forge-install.js

@@ -14,6 +14,7 @@ import semver from 'semver';
 
 import './util/terminate';
 
+import darwinDMGInstaller from './installers/darwin/dmg';
 import darwinZipInstaller from './installers/darwin/zip';
 
 const d = debug('electron-forge:lint');
@@ -72,7 +73,7 @@ const main = async () => {
 
  const installTargets = {
  win32: ['.exe'],
- darwin: ['OSX.zip', 'darwin.zip', 'macOS.zip', 'mac.zip'],
+ darwin: ['OSX.zip', 'darwin.zip', 'macOS.zip', 'mac.zip', '.dmg'],
  linux: ['.rpm', '.deb', '.flatpak'],
  };
 
@@ -130,6 +131,7 @@ const main = async () => {
  },
  darwin: {
  '.zip': darwinZipInstaller,
+ '.dmg': darwinDMGInstaller,
  },
  linux: {
  '.deb': async () => {},

src/installers/darwin/dmg.js

@@ -0,0 +1,14 @@
+import fs from 'fs-promise';
+import opn from 'opn';
+import path from 'path';
+import pify from 'pify';
+import { exec } from 'child_process';
+
+export default async (filePath) => {
+ const DMGPath = path.join(path.dirname(filePath), path.parse(filePath).name);
+ if (await fs.exists(DMGPath)) {
+ await fs.remove(DMGPath);
+ }
+ await pify(exec)(`cp "${filePath}" "${DMGPath}"`);
+ await opn(DMGPath, { wait: false });
+};