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使用 Electron Updater 入门

本指南将指导您设置 @capgo/electron-updater 在您的Electron应用程序中,

前置条件

前置条件
  • Electron 20.0.0 或更高
  • Node.js 18 或更高
  • 一个 Capgo 账户(注册地址:Capgo.app) capgo.app)

安装

安装
  1. 安装包:

    终端窗口
    bun add @capgo/electron-updater
  2. 从 Capgo 控制台获取您的 App ID。如果您还没有创建应用,请运行:

    终端窗口
    npx @capgo/cli@latest init

设置

设置

Electron 更新器需要在三个地方进行设置:主进程、预加载脚本和渲染进程。

主进程

设置
main.ts
import { app, BrowserWindow } from 'electron';
import * as path from 'path';
import {
ElectronUpdater,
setupIPCHandlers,
setupEventForwarding,
} from '@capgo/electron-updater';
// Create updater instance with your Capgo App ID
const updater = new ElectronUpdater({
appId: 'YOUR_CAPGO_APP_ID', // e.g., 'com.example.myapp'
autoUpdate: true,
});
app.whenReady().then(async () => {
const mainWindow = new BrowserWindow({
width: 1200,
height: 800,
webPreferences: {
preload: path.join(__dirname, 'preload.js'),
contextIsolation: true,
},
});
// Initialize updater with window and builtin path
const builtinPath = path.join(__dirname, 'www/index.html');
await updater.initialize(mainWindow, builtinPath);
// Setup IPC communication between main and renderer
setupIPCHandlers(updater);
setupEventForwarding(updater, mainWindow);
// Load the current bundle (either builtin or downloaded update)
await mainWindow.loadFile(updater.getCurrentBundlePath());
});
app.on('window-all-closed', () => {
if (process.platform !== 'darwin') {
app.quit();
}
});

预加载脚本

设置
preload.ts
import { exposeUpdaterAPI } from '@capgo/electron-updater/preload';
// Expose the updater API to the renderer process
exposeUpdaterAPI();

渲染进程

渲染进程
// renderer.ts (or in your app's entry point)
import { requireUpdater } from '@capgo/electron-updater/renderer';
const updater = requireUpdater();
// CRITICAL: Call this on every app launch!
// This confirms the bundle loaded successfully and prevents rollback
await updater.notifyAppReady();
console.log('App ready, current bundle:', await updater.current());

autoUpdate: true, 自动更新器会自动检查更新。您也可以手动触发检查:

// Check for updates manually
const latest = await updater.getLatest();
if (latest.url && !latest.error) {
console.log('Update available:', latest.version);
// Download the update
const bundle = await updater.download({
url: latest.url,
version: latest.version,
checksum: latest.checksum,
});
console.log('Downloaded bundle:', bundle.id);
// Option 1: Queue for next restart
await updater.next({ id: bundle.id });
// Option 2: Apply immediately and reload
// await updater.set({ id: bundle.id });
}

通过事件跟踪更新进度和状态:

// Download progress
updater.addListener('download', (event) => {
console.log(`Download progress: ${event.percent}%`);
});
// Update available
updater.addListener('updateAvailable', (event) => {
console.log('New version available:', event.bundle.version);
});
// Download completed
updater.addListener('downloadComplete', (event) => {
console.log('Download finished:', event.bundle.id);
});
// Update failed
updater.addListener('updateFailed', (event) => {
console.error('Update failed:', event.bundle.version);
});

使用 Capgo CLI 上传更新:

终端窗口
# Build your app
npm run build
# Upload to Capgo
npx @capgo/cli@latest bundle upload --channel=production

您的 Electron 应用程序将自动检测并下载下次检查时的新捆绑包。

在开发期间启用调试菜单:

const updater = new ElectronUpdater({
appId: 'YOUR_CAPGO_APP_ID',
debugMenu: true, // Enable debug menu
});

Ctrl+Shift+D (或 Cmd+Shift+D 在 Mac 上) 打开调试菜单并:

  • 查看当前捆绑包信息
  • 切换到可用的捆绑包
  • 重置为内置版本
  • 查看设备和频道信息

配置选项

配置选项
const updater = new ElectronUpdater({
// Required
appId: 'com.example.app',
// Server URLs (defaults to Capgo Cloud)
updateUrl: 'https://plugin.capgo.app/updates',
channelUrl: 'https://plugin.capgo.app/channel_self',
statsUrl: 'https://plugin.capgo.app/stats',
// Behavior
autoUpdate: true, // Enable auto-updates
appReadyTimeout: 10000, // MS before rollback (default: 10s)
autoDeleteFailed: true, // Delete failed bundles
autoDeletePrevious: true, // Delete old bundles after successful update
// Channels
defaultChannel: 'production',
// Security
publicKey: '...', // For end-to-end encryption
// Debug
debugMenu: false, // Enable debug menu
disableJSLogging: false, // Disable console logs
// Periodic Updates
periodCheckDelay: 0, // Seconds between checks (0 = disabled, min 600)
});

下一步

下一步