方法一

使用Electron-builder官方提供的接口，在你的electron-builder.yml配置文件里配置afterAllArtifactBuild属性.

afterAllArtifactBuild: scripts/afterBuild.js

afterBuild.js:

exports.default = function () {    console.log('------------------------------------afterBuild------------------------------------------');    return ['upgrade.json']; // 这个返回的数组就是你想要上传的所有文件路径。}

方法二

思路

通过调用Github rest API接口进行查询、上传文件操作。

上传文件

创立一个本地文件，这里就叫update.js，代码如下：

const fs = require('fs');const { Octokit } = require("@octokit/rest");const yaml = require('js-yaml');const { version } = require('./package.json');let uploadUpgradeAsset = async function () {    const octokit = new Octokit({        auth: process.env.GH_TOKEN, //GH_TOKEN是你的github的personal access token，需要提前在本地环境中配置，不建议直接把token字符串放到这里，不安全。    });    // get Owner & Repository name    const asset = 'electron-builder.yml';    const { publish } = yaml.load(fs.readFileSync(asset, 'utf8'));    console.log('version:', version);    // upload    const assetName = 'upgrade.json'; //你要上传的文件名。the asset you want to upload to your release.    octokit.repos.listReleases({        owner: publish[0].owner,        repo: publish[0].repo,    }).then(res => {        // console.log('listReleases data:', res.data);        // 获取id，upload_url，        const { id, upload_url } = res.data.filter(obj => obj.name === version)[0];        console.log('id, upload_url', id, upload_url);        let data = fs.readFileSync(assetName);        let param = {            owner: publish[0].owner,            repo: publish[0].repo,            release_id: id,            name: assetName,            data: data,            origin: upload_url,            headers: {                'content-type': 'application/json',            },        };        console.log('param:', param);        // 上传        octokit.repos.uploadReleaseAsset(param).then(response => {            console.log('uploadAsset success:', response);        }).catch(error => {            console.log('uploadAsset error:', error);        });    }).catch(err => {        console.log('listReleases error:', err);    });}uploadUpgradeAsset();

配置package.json

"scripts": {  "pack:win": "run-s copy:win transpile:renderer transpile:main build:win upload",  "upload": "node update.js"}