背景
昨天写得一篇Electron-vue asar 局部打包优化处理方案——绕开每次npm run build 超级慢的打包问题-CSDN博客文章浏览阅读754次，点赞19次，收藏11次。因为组员对于 Electron 打包过程存在比较迷糊的状态，且自己也没主动探索 Electron-vue 打包细节，导致每次打包过程都消耗 5-6 分钟的时间，在需要测试生产打包时，极其浪费时间，为此针对 Electron-vue 打包的几个环节进行拆解，来减少打包时间，提高开发效率。https://blog.csdn.net/wangsenling/article/details/142364579
打包超级慢的原因不是最终electron-builder环节的问题，而是webpack打包渲染进程的问题，今天经过与ChatGPT一起优化，终于把速度降了大概5倍左右，直接让文件打包速度快了很多。
具体配置
1. 主要是多进程处理，这里追加了4个worker，自己的cpu核心有几个可以配置几个，这个主要加速点
2. 去掉了原来的一个没有用的plugin
3. 增加了缓存机制
'use strict'process.env.BABEL_ENV = 'renderer'const path = require('path')
const {dependencies} = require('../package.json')
const webpack = require('webpack')const CopyWebpackPlugin = require('copy-webpack-plugin')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const {VueLoaderPlugin} = require('vue-loader')
const TerserPlugin = require('terser-webpack-plugin');/*** List of node_modules to include in webpack bundle** Required for specific packages like Vue UI libraries* that provide pure *.vue files that need compiling* https://simulatedgreg.gitbooks.io/electron-vue/content/en/webpack-configurations.html#white-listing-externals*/
let whiteListedModules = ['vue', 'element-ui']let rendererConfig = {// 添加以下一行，设置 modemode: process.env.NODE_ENV === 'production' ? 'production' : 'development',devtool: process.env.NODE_ENV === 'production' ? false : '#cheap-module-eval-source-map',entry: {renderer: path.join(__dirname, '../src/renderer/main.js'),},externals: [...Object.keys(dependencies || {}).filter((d) => !whiteListedModules.includes(d)),],module: {rules: [{test: /\.scss$/,use: ['vue-style-loader', 'css-loader', 'sass-loader'],},{test: /\.sass$/,use: ['vue-style-loader', 'css-loader', 'sass-loader?indentedSyntax'],},{test: /\.less$/,use: ['vue-style-loader', 'css-loader', 'less-loader'],},{test: /\.css$/,use: ['vue-style-loader', 'css-loader'],},{test: /\.html$/,use: 'vue-html-loader',},{test: /\.js$/,use: [{loader: 'thread-loader',options: {workers: 4, // 设置 worker 数量},}, {loader: 'babel-loader',options: {cacheDirectory: true}}],exclude: /node_modules/,},{test: /\.node$/,use: 'node-loader',},{test: /\.vue$/,use: {loader: 'vue-loader',options: {extractCSS: process.env.NODE_ENV === 'production',loaders: {sass: 'vue-style-loader!css-loader!sass-loader?indentedSyntax=1',scss: 'vue-style-loader!css-loader!sass-loader',less: 'vue-style-loader!css-loader!less-loader',},},},},{test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,use: {loader: 'url-loader',query: {limit: 10000,name: 'imgs/[name]--[folder].[ext]',},},},{test: /\.(mp4|webm|ogg|mp3|wav|flac|aac)(\?.*)?$/,loader: 'url-loader',options: {limit: 10000,name: 'media/[name]--[folder].[ext]',},},{test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,use: {loader: 'url-loader',query: {limit: 10000,name: 'fonts/[name]--[folder].[ext]',},},},],},node: {__dirname: process.env.NODE_ENV !== 'production',__filename: process.env.NODE_ENV !== 'production',},plugins: [new VueLoaderPlugin(),new MiniCssExtractPlugin({filename: 'styles.css'}),new HtmlWebpackPlugin({filename: 'index.html',template: path.resolve(__dirname, '../src/index.ejs'),templateParameters(compilation, assets, options) {return {compilation: compilation,webpack: compilation.getStats().toJson(),webpackConfig: compilation.options,htmlWebpackPlugin: {files: assets,options: options,},process,}},minify: {collapseWhitespace: true,removeAttributeQuotes: true,removeComments: true,},nodeModules:process.env.NODE_ENV !== 'production'? path.resolve(__dirname, '../node_modules'): false,}),new webpack.NoEmitOnErrorsPlugin(),],output: {filename: '[name].js',chunkFilename: "cities/[name].js",libraryTarget: 'commonjs2',path: path.join(__dirname, '../dist/electron'),},resolve: {alias: {'@': path.join(__dirname, '../src/renderer'),vue$: 'vue/dist/vue.esm.js',},extensions: ['.js', '.vue', '.json', '.css', '.node'],},optimization: {minimize: true,minimizer: [new TerserPlugin({parallel: true, // 开启多线程压缩cache: true,terserOptions: {// 在这里添加 Terser 的配置选项compress: {drop_console: true, // 例如，移除 console.log},},}),],},target: 'electron-renderer',
}/*** Adjust rendererConfig for development settings*/
if (process.env.NODE_ENV !== 'production') {rendererConfig.plugins.push(new webpack.HotModuleReplacementPlugin(),new webpack.DefinePlugin({__static: `"${path.join(__dirname, '../static').replace(/\\/g, '\\\\')}"`,}))
}/*** Adjust rendererConfig for production settings*/
if (process.env.NODE_ENV === 'production') {rendererConfig.devtool = ''rendererConfig.plugins.push(new CopyWebpackPlugin([{from: path.join(__dirname, '../static'),to: path.join(__dirname, '../dist/electron/static'),ignore: ['.*'],},]),new webpack.DefinePlugin({'process.env.NODE_ENV': '"production"',}))
}module.exports = rendererConfig