electron-github-asar-updater

This package works after Electron app is packaged.

electron-github-asar-updater v2.x require Electron version >= 2.0.0

Usage

1. Default

   // Electron main process
   const Updater = require('electron-github-asar-updater')
   
   /**
    * Write file
    * ${process.resourcesPath}/updater/index.js
    * ${process.resourcesPath}/updater/package.json
    */
   const updater = new Updater('githubUser/repoName', '{{prefix}}');
   
   (async function () {
     /**
      * Check latest github release.
      * 
      * Tag name must be "vX.X.X".
      * For example: v2.3.3
      * 
      * Asar zip name must be `{{prefix}}-${process.platform}-${process.arch}.zip`
      * For example: {{prefix}}-win32-ia32.zip {{prefix}}-linux-x64.zip
      * 
      * Full asset name example:
      * myapp-v2.3.3-win32-x64.zip
      * myapp-v2.3.3-win32-ia32.exe
      * myapp-v2.3.3-linux-x64.deb
      */
     await updater.check({
       /**
        * -1: ignore pre-release (default)
        * 0:  include pre-release
        * 1:  check prerelease only
        */
       prerelease: -1
     })
   
     const info = updater.getUpdateInfo()
     if (info) { // newer version found
          
       console.log(info)
       if (updater.isReadyToDownload()) { // exists `resources-${process.platform}-${process.arch}.zip`
         /**
          * Download `resources-${process.platform}.zip` and unzip to
          * `${process.resourcesPath}/.patch`
          */
         const downloadResult = await updater.download(({ name, current, max, loading }) => {
           /**
            * {
            *   name: string;
            *   current: number;
            *   max: number;
            *   loading: number;
            * }
            * 
            * do something, return void
            */
         })
   
         if (downloadResult) { // Success
           /**
            * 1. Rename `${process.resourcesPath}/updater` to `${process.resourcesPath}/app`
            * 2. Relaunch. Copy `${process.resourcesPath}/.patch/*` to `${process.resourcesPath}`
            * 3. Remove `${process.resourcesPath}/.patch`
            * 4. Rename `${process.resourcesPath}/app` to `${process.resourcesPath}/updater`
            * 5. Relaunch
            */ 
           updater.relaunch()
         } else {
           console.log('download aborted.')
         }
       }
     }
   })()

2. Use custom updater executable

   // Electron main process
   const Updater = require('electron-github-asar-updater')
   
   // use custom updater executable
   const updater = new Updater('githubUser/repoName', '{{prefix}}', true);
   (async function () {
   
     await updater.check({
       prerelease: -1
     })
   
     const info = updater.getUpdateInfo()
     if (info) {
       if (updater.isReadyToDownload()) {
         const downloadResult = await updater.download(({ name, current, max, loading }) => {})
         if (downloadResult) {
           // run executable and exit app, relaunch app by your program
           require('child_process').spawn(/* ... */).unref()
           updater.relaunch() // just call app.exit()
         } else {
           console.log('download aborted.')
         }
       }
     }
   })()