Switch to "type": "module".

Signed-off-by: Anders Kaseorg <anders@zulip.com>

app/main/index.ts

@@ -32,7 +32,7 @@ import {sentryInit} from "./sentry.ts";
 import {setAutoLaunch} from "./startup.ts";
 import {ipcMain, send} from "./typed-ipc-main.ts";
 
-import "gatemaker/electron-setup"; // eslint-disable-line import/no-unassigned-import
+import "gatemaker/electron-setup.js"; // eslint-disable-line import/no-unassigned-import
 
 // eslint-disable-next-line @typescript-eslint/naming-convention
 const {GDK_BACKEND} = process.env;
@@ -87,7 +87,7 @@ function createMainWindow(): BrowserWindow {
     minWidth: 500,
     minHeight: 400,
     webPreferences: {
-      preload: path.join(bundlePath, "renderer.js"),
+      preload: path.join(bundlePath, "renderer.cjs"),
       sandbox: false,
       webviewTag: true,
     },

app/renderer/js/main.ts

@@ -412,7 +412,7 @@ export class ServerManagerView {
           await this.openNetworkTroubleshooting(index);
         },
         onTitleChange: this.updateBadge.bind(this),
-        preload: url.pathToFileURL(path.join(bundlePath, "preload.js")).href,
+        preload: url.pathToFileURL(path.join(bundlePath, "preload.cjs")).href,
         unsupportedMessage: DomainUtil.getUnsupportedMessage(server),
       }),
     });

i18next-parser.config.js

@@ -1,6 +1,4 @@
-"use strict";
-
-module.exports = {
+const config = {
   createOldCatalogs: false,
   defaultValue: (locale, namespace, key, value) =>
     locale === "en" ? key : value,
@@ -15,3 +13,4 @@ module.exports = {
   output: "public/translations/$LOCALE.json",
   sort: (a, b) => (a < b ? -1 : a > b ? 1 : 0),
 };
+export default config;

package.json

@@ -2,7 +2,7 @@
   "name": "zulip",
   "productName": "Zulip",
   "version": "5.12.0",
-  "main": "./dist-electron",
+  "main": "./dist-electron/index.cjs",
   "description": "Zulip Desktop App",
   "license": "Apache-2.0",
   "copyright": "Kandra Labs, Inc.",
@@ -17,6 +17,7 @@
   "bugs": {
     "url": "https://github.com/zulip/zulip-desktop/issues"
   },
+  "type": "module",
   "engines": {
     "node": ">=18"
   },

tests/index.js

@@ -1,12 +1,11 @@
-"use strict";
-const {chan, put, take} = require("medium");
-const test = require("tape");
+import {chan, put, take} from "medium";
+import test from "tape";
 
-const setup = require("./setup.js");
+import * as setup from "./setup.js";
 
 test("app runs", async (t) => {
   t.timeoutAfter(10e3);
-  setup.resetTestDataDir();
+  setup.resetTestDataDirectory();
   const app = await setup.createApp();
   try {
     const windows = chan();

tests/package.json

@@ -1,5 +1,6 @@
 {
   "version": "5.9.3",
   "productName": "ZulipTest",
-  "main": "../dist-electron"
+  "type": "module",
+  "main": "../dist-electron/index.cjs"
 }

tests/setup.js

@@ -1,28 +1,23 @@
-"use strict";
-const fs = require("node:fs");
-const path = require("node:path");
-const process = require("node:process");
+import fs from "node:fs";
+import path from "node:path";
+import process from "node:process";
 
-const {_electron} = require("playwright-core");
+import {_electron} from "playwright-core";
 
-const testsPkg = require("./package.json");
-
-module.exports = {
-  createApp,
-  endTest,
-  resetTestDataDir: resetTestDataDirectory,
-};
+const testsPackage = JSON.parse(
+  fs.readFileSync(new URL("package.json", import.meta.url), "utf8"),
+);
 
 // Runs Zulip Desktop.
 // Returns a promise that resolves to an Electron Application once the app has loaded.
-function createApp() {
+export function createApp() {
   return _electron.launch({
-    args: [path.join(__dirname)], // Ensure this dir has a package.json file with a 'main' entry point
+    args: [import.meta.dirname], // Ensure this dir has a package.json file with a 'main' entry point
   });
 }
 
 // Quit the app, end the test
-async function endTest(app) {
+export async function endTest(app) {
   await app.close();
 }
 
@@ -52,11 +47,11 @@ function getAppDataDirectory() {
   }
 
   console.log("Detected App Data Dir base:", base);
-  return path.join(base, testsPkg.productName);
+  return path.join(base, testsPackage.productName);
 }
 
 // Resets the test directory, containing domain.json, window-state.json, etc
-function resetTestDataDirectory() {
+export function resetTestDataDirectory() {
   const appDataDirectory = getAppDataDirectory();
   fs.rmSync(appDataDirectory, {force: true, recursive: true});
 }

tests/test-add-organization.js

@@ -1,12 +1,11 @@
-"use strict";
-const {chan, put, take} = require("medium");
-const test = require("tape");
+import {chan, put, take} from "medium";
+import test from "tape";
 
-const setup = require("./setup.js");
+import * as setup from "./setup.js";
 
 test("add-organization", async (t) => {
   t.timeoutAfter(50e3);
-  setup.resetTestDataDir();
+  setup.resetTestDataDirectory();
   const app = await setup.createApp();
   try {
     const windows = chan();

tests/test-new-organization.js

@@ -1,14 +1,13 @@
-"use strict";
-const {chan, put, take} = require("medium");
-const test = require("tape");
+import {chan, put, take} from "medium";
+import test from "tape";
 
-const setup = require("./setup.js");
+import * as setup from "./setup.js";
 
 // Create new org link should open in the default browser [WIP]
 
 test("new-org-link", async (t) => {
   t.timeoutAfter(50e3);
-  setup.resetTestDataDir();
+  setup.resetTestDataDirectory();
   const app = await setup.createApp();
   try {
     const windows = chan();

vite.config.ts

@@ -1,7 +1,5 @@
 /* eslint-disable @typescript-eslint/naming-convention */
 
-import * as path from "node:path";
-
 import {defineConfig} from "vite";
 import electron from "vite-plugin-electron";
 
@@ -9,14 +7,20 @@ export default defineConfig({
   plugins: [
     electron([
       {
+        vite: {
+          build: {
+            lib: {
               entry: {
                 index: "app/main",
               },
-        vite: {
-          build: {
+              formats: ["cjs"],
+            },
             sourcemap: true,
             rollupOptions: {
               external: ["electron", /^electron\//, /^gatemaker\//],
+              output: {
+                entryFileNames: "[name].cjs",
+              },
             },
             ssr: true,
           },
@@ -31,27 +35,39 @@ export default defineConfig({
         },
       },
       {
+        vite: {
+          build: {
+            lib: {
               entry: {
                 preload: "app/renderer/js/preload.ts",
               },
-        vite: {
-          build: {
+              formats: ["cjs"],
+            },
             sourcemap: "inline",
             rollupOptions: {
               external: ["electron", /^electron\//],
+              output: {
+                entryFileNames: "[name].cjs",
+              },
             },
           },
         },
       },
       {
+        vite: {
+          build: {
+            lib: {
               entry: {
                 renderer: "app/renderer/js/main.ts",
               },
-        vite: {
-          build: {
+              formats: ["cjs"],
+            },
             sourcemap: true,
             rollupOptions: {
               external: ["electron", /^electron\//],
+              output: {
+                entryFileNames: "[name].cjs",
+              },
             },
           },
           resolve: {
@@ -68,10 +84,10 @@ export default defineConfig({
     sourcemap: true,
     rollupOptions: {
       input: {
-        renderer: path.join(__dirname, "app/renderer/main.html"),
-        network: path.join(__dirname, "app/renderer/network.html"),
-        about: path.join(__dirname, "app/renderer/about.html"),
-        preference: path.join(__dirname, "app/renderer/preference.html"),
+        renderer: "app/renderer/main.html",
+        network: "app/renderer/network.html",
+        about: "app/renderer/about.html",
+        preference: "app/renderer/preference.html",
       },
     },
   },

xo.config.cjs

@@ -128,12 +128,7 @@ module.exports = {
       },
     },
     {
-      files: [
-        "**.cjs",
-        "i18next-parser.config.js",
-        "scripts/win-sign.js",
-        "tests/**/*.js",
-      ],
+      files: ["**.cjs"],
       parserOptions: {
         sourceType: "script",
       },