Fully notarize universal dmg instead of stapling

ts/scripts/notarize-universal-dmg.ts

@@ -0,0 +1,68 @@
+// Copyright 2022 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import type { BuildResult } from 'electron-builder';
+
+import { notarize } from 'electron-notarize';
+
+import * as packageJson from '../../package.json';
+
+/* eslint-disable no-console */
+
+export async function afterAllArtifactBuild({
+  platformToTargets,
+  artifactPaths,
+}: BuildResult): Promise<void> {
+  const platforms = Array.from(platformToTargets.keys()).map(
+    platform => platform.name
+  );
+  if (platforms.length !== 1) {
+    console.log(`notarize: Skipping, too many platforms ${platforms}`);
+    return;
+  }
+
+  if (platforms[0] !== 'mac') {
+    console.log(`notarize: Skipping, platform is ${platforms[0]}`);
+    return;
+  }
+
+  const appBundleId = packageJson.build.appId;
+  if (!appBundleId) {
+    throw new Error(
+      'appBundleId must be provided in package.json: build.appId'
+    );
+  }
+
+  const appleId = process.env.APPLE_USERNAME;
+  if (!appleId) {
+    console.warn(
+      'appleId must be provided in environment variable APPLE_USERNAME'
+    );
+    return;
+  }
+
+  const appleIdPassword = process.env.APPLE_PASSWORD;
+  if (!appleIdPassword) {
+    console.warn(
+      'appleIdPassword must be provided in environment variable APPLE_PASSWORD'
+    );
+    return;
+  }
+
+  const artifactsToStaple = artifactPaths.filter(artifactPath =>
+    /^.*mac-universal.*\.dmg$/.test(artifactPath)
+  );
+  if (artifactsToStaple.length !== 1) {
+    console.log(`notarize: Skipping, too many dmgs ${artifactsToStaple}`);
+    return;
+  }
+
+  const [dmgPath] = artifactsToStaple;
+  console.log(`Notarizing dmg: ${dmgPath}`);
+  await notarize({
+    appBundleId,
+    appPath: dmgPath,
+    appleId,
+    appleIdPassword,
+  });
+}