feat(electron): build compressed Windows installer with Electron 40.6.1

electron/main.mjs

@@ -0,0 +1,118 @@
+import { app, BrowserWindow } from 'electron';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { spawn } from 'node:child_process';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+const BUNDLE_ROOT = app.isPackaged
+  ? path.join(process.resourcesPath, 'bundle')
+  : path.resolve(__dirname, '..');
+
+const NODECG_PORT = Number.parseInt(process.env.NODECG_PORT ?? '9090', 10);
+const NODECG_HOST = process.env.NODECG_HOST ?? '127.0.0.1';
+const NODECG_URL = `http://${NODECG_HOST}:${NODECG_PORT}`;
+
+let nodecgProcess;
+
+function getNodecgCliPath() {
+  return app.isPackaged
+    ? path.join(process.resourcesPath, 'app.asar.unpacked', 'node_modules', 'nodecg', 'bin', 'nodecg.js')
+    : path.join(__dirname, 'node_modules', 'nodecg', 'bin', 'nodecg.js');
+}
+
+function startNodecg() {
+  const nodecgCli = getNodecgCliPath();
+
+  nodecgProcess = spawn(process.execPath, [nodecgCli, 'start'], {
+    cwd: BUNDLE_ROOT,
+    env: {
+      ...process.env,
+      ELECTRON_RUN_AS_NODE: '1',
+      NODECG_PORT: String(NODECG_PORT),
+    },
+    stdio: 'inherit',
+  });
+
+  nodecgProcess.on('exit', (code) => {
+    if (code !== 0) {
+      console.error(`[electron] NodeCG process exited with code ${code}`);
+    }
+
+    if (!app.isQuitting) {
+      app.quit();
+    }
+  });
+}
+
+function stopNodecg() {
+  if (!nodecgProcess || nodecgProcess.killed) {
+    return;
+  }
+
+  app.isQuitting = true;
+  nodecgProcess.kill();
+}
+
+async function waitForNodecg(retries = 80, delayMs = 250) {
+  for (let attempt = 0; attempt < retries; attempt += 1) {
+    try {
+      const response = await fetch(NODECG_URL, { method: 'HEAD' });
+      if (response.ok || response.status >= 300) {
+        return;
+      }
+    } catch {
+      // Ignore connection errors while NodeCG boots.
+    }
+
+    await new Promise((resolve) => {
+      setTimeout(resolve, delayMs);
+    });
+  }
+
+  throw new Error(`NodeCG did not start in time at ${NODECG_URL}`);
+}
+
+async function createWindow() {
+  const mainWindow = new BrowserWindow({
+    width: 1366,
+    height: 768,
+    autoHideMenuBar: true,
+    webPreferences: {
+      contextIsolation: true,
+      sandbox: true,
+    },
+  });
+
+  await mainWindow.loadURL(NODECG_URL);
+}
+
+app.whenReady().then(async () => {
+  startNodecg();
+
+  try {
+    await waitForNodecg();
+    await createWindow();
+  } catch (error) {
+    console.error('[electron] Failed to start wrapper:', error);
+    app.quit();
+  }
+
+  app.on('activate', async () => {
+    if (BrowserWindow.getAllWindows().length === 0) {
+      await createWindow();
+    }
+  });
+});
+
+app.on('before-quit', () => {
+  app.isQuitting = true;
+  stopNodecg();
+});
+
+app.on('window-all-closed', () => {
+  if (process.platform !== 'darwin') {
+    app.quit();
+  }
+});