83 lines
3.3 KiB
Markdown
83 lines
3.3 KiB
Markdown
|
# 更新應用程式
|
|||
|
|
|
|||
|
|
有很多種方式能夠更新 Electron 應用程式，其中最簡單也最正式的一種是使用 [Squirrel](https://github.com/Squirrel) 框架，以及 Electron's [自動更新](../api/auto-updater.md)模組。
|
|||
|
|
|
|||
|
|
## 部署更新伺服器
|
|||
|
|
|
|||
|
|
首先，您需要部署一個伺服器讓[自動更新](../api/auto-updater.md)模組能夠下載更新檔案。
|
|||
|
|
|
|||
|
|
您可以選擇以下幾種服務：
|
|||
|
|
|
|||
|
|
- [Hazel](https://github.com/zeit/hazel) – Simple update server for open-source
|
|||
|
|
apps. Pulls from
|
|||
|
|
[GitHub Releases](https://help.github.com/articles/creating-releases/)
|
|||
|
|
and can be deployed for free on [Now](https://zeit.co/now).
|
|||
|
|
- [Nuts](https://github.com/GitbookIO/nuts) – Also uses
|
|||
|
|
[GitHub Releases](https://help.github.com/articles/creating-releases/),
|
|||
|
|
but caches app updates on disk and supports private repositories.
|
|||
|
|
- [electron-release-server](https://github.com/ArekSredzki/electron-release-server) –
|
|||
|
|
Provides a dashboard for handling releases
|
|||
|
|
|
|||
|
|
如果您的應用程式是使用 [electron-builder][electron-builder-lib] 打包，您可以使用 [electron-updater] 模組，它不需要部署伺服器且允許從靜態網址下載，例如 S3 或 GitHub 。
|
|||
|
|
|
|||
|
|
## 在您的應用程式中實作更新
|
|||
|
|
|
|||
|
|
當您部署好更新伺服器後，在您的程式碼中引用必要的模組，以下的程式碼將以 [Hazel](https://github.com/zeit/hazel) 服務為範例。
|
|||
|
|
|
|||
|
|
**重要：** 請確認以下的程式碼只會在您打包後的應用程式內執行，且不在開發環境中，您可以使用 [electron-is-dev](https://github.com/sindresorhus/electron-is-dev) 來確認當前環境。
|
|||
|
|
|
|||
|
|
```js
|
|||
|
|
const {app, autoUpdater, dialog} = require('electron')
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
接下來，構造更新伺服器網址並傳入 [autoUpdater](../api/auto-updater.md) ：
|
|||
|
|
|
|||
|
|
```js
|
|||
|
|
const server = 'https://your-deployment-url.com'
|
|||
|
|
const feed = `${server}/update/${process.platform}/${app.getVersion()}`
|
|||
|
|
|
|||
|
|
autoUpdater.setFeedURL(feed)
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
最後，檢查更新，以下的範例將會每分鐘檢查一次。
|
|||
|
|
|
|||
|
|
```js
|
|||
|
|
setInterval(() => {
|
|||
|
|
autoUpdater.checkForUpdates()
|
|||
|
|
}, 60000)
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
當你[打包](../tutorial/application-distribution.md)您的應用程式後，應用程式將會收到每次您在 [GitHub Release](https://help.github.com/articles/creating-releases/) 的更新檔案。
|
|||
|
|
|
|||
|
|
## 應用更新
|
|||
|
|
|
|||
|
|
現在您已為應用程式部署了一個基礎的更新機制，為了要確保所有的用戶都會收到更新通知，您可以使用 autoUpdater API [events](../api/auto-updater.md#events) 來實作：
|
|||
|
|
|
|||
|
|
```js
|
|||
|
|
autoUpdater.on('update-downloaded', (event, releaseNotes, releaseName) => {
|
|||
|
|
const dialogOpts = {
|
|||
|
|
type: 'info',
|
|||
|
|
buttons: ['Restart', 'Later'],
|
|||
|
|
title: 'Application Update',
|
|||
|
|
message: process.platform === 'win32' ? releaseNotes : releaseName,
|
|||
|
|
detail: 'A new version has been downloaded. Restart the application to apply the updates.'
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
dialog.showMessageBox(dialogOpts, (response) => {
|
|||
|
|
if (response === 0) autoUpdater.quitAndInstall()
|
|||
|
|
})
|
|||
|
|
})
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
同時確認所有的錯誤都有被[處理](../api/auto-updater.md#event-error)，以下將以記錄錯誤至 `stderr` 為範例：
|
|||
|
|
|
|||
|
|
```js
|
|||
|
|
autoUpdater.on('error', message => {
|
|||
|
|
console.error('There was a problem updating the application')
|
|||
|
|
console.error(message)
|
|||
|
|
})
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
[electron-builder-lib]: https://github.com/electron-userland/electron-builder
|
|||
|
|
[electron-updater]: https://www.electron.build/auto-update
|