Vue-cli3.0 is fully configured

☞ Configure multiple environment variables

Select different environments by adding –mode XXX to the scripts configuration item in package.json

Create. Env,.env.production,.env.analyz and other files in the project root directory

Only variables starting with VUEAPP are statically embedded in the client-side package by webpack.defineplugin and can be accessed in the code via process.env.vue_app_base_API

NODE_ENV and BASE_URL are two special variables that are always available in the code

Env serve Default environment variable

NODE_ENV = 'development'
VUE_APP_BASE_API = 'https://demo.cn/api'
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.env.production build The default environment variable

If open ali oss, VUE_APP_SRC configured to ali oss resource url prefix, such as: ‘staven.oss-cn-hangzhou.aliyuncs.com/demo’

NODE_ENV = 'production' VUE_APP_BASE_API = 'https://demo.com/api' VUE_APP_SRC = '/' ACCESS_KEY_ID = '' ACCESS_KEY_SECRET  = '' REGION = 'oss-cn-hangzhou' BUCKET = 'staven' PREFIX = 'demo'Copy the code

Env. analyz is used for webpack-bundle-Analyzer package analysis

If open ali oss, VUE_APP_SRC configured to ali oss resource url prefix, such as: ‘staven.oss-cn-hangzhou.aliyuncs.com/demo’

NODE_ENV = 'production' IS_ANALYZ = 'analyz' VUE_APP_BASE_API = 'https://demo.com/api' VUE_APP_SRC = '/' ACCESS_KEY_ID =  '' ACCESS_KEY_SECRET = '' REGION = 'oss-cn-hangzhou' BUCKET = 'staven' PREFIX = 'demo'Copy the code

Modify the package. The json

"scripts": {
  "serve": "vue-cli-service serve",
  "build": "vue-cli-service build",
  "analyz": "vue-cli-service build --mode analyz",
  "lint": "vue-cli-service lint"
}
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☞ Basic Configuration vue.config.js

const IS_PROD = ['production', 'prod'].includes(process.env.NODE_ENV); Module.exports = {baseUrl: './', // default '/', baseUrl outputDir for deploying application packages: Process. The env. OutputDir | | 'dist' / / 'dist, production environment assetsDir build file directory: // Static resources (js, CSS, img, fonts) directory relative to outputDir lintOnSave: false, runtimeCompiler: ProductionSourceMap: false, // Source map parallel for production environment: require('os').cpus().length > 1, pwa: {} };Copy the code

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☞ Configure proxy across domains

const IS_PROD = ['production', 'prod'].includes(process.env.NODE_ENV); module.exports = { devServer: { // overlay: { // warnings: true, // errors: true // }, open: IS_PROD, host: '0.0.0.0', port: 8000, HTTPS: false, hotOnly: false, proxy: {'/ API ': {target: Process. The env. VUE_APP_BASE_API | | 'http://127.0.0.1:8080', changeOrigin: true}}}}Copy the code

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☞ Repair HMR(hot update) failure

Module.exports = {chainWebpack: config => {// fix HMR config.resolve.symlinks(true); }}Copy the code

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☞ Fix Lazy loading routes Error: Cyclic DependencyGithub.com/vuejs/vue-c…

module.exports = { chainWebpack: config => { config.plugin('html').tap(args => { args[0].chunksSortMode = 'none'; return args; }); }}Copy the code

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☞ Add alias

const path = require('path'); const resolve = (dir) => path.join(__dirname, dir); const IS_PROD = ['production', 'prod'].includes(process.env.NODE_ENV); module.exports = { chainWebpack: Config => {// add alias config.resolve.alias. set('@', resolve(' SRC ')).set('assets', resolve('src/assets')) .set('components', resolve('src/components')) .set('layout', resolve('src/layout')) .set('base', resolve('src/base')) .set('static', resolve('src/static')); }}Copy the code

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☞ Remove redundant and invalid CSS

npm i --save-dev glob-all purgecss-webpack-plugin
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const PurgecssPlugin = require('purgecss-webpack-plugin'); const glob = require('glob-all'); const path = require('path') module.exports = { configureWebpack: config => { if (IS_PROD) { const plugins = []; plugins.push( new PurgecssPlugin({ paths: glob.sync([ path.join(__dirname, './src/index.html'), path.join(__dirname, './**/*.vue'), path.join(__dirname, './src/**/*.js') ]) }) ); config.plugins = [ ...config.plugins, ...plugins ]; }}}Copy the code

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☞ Add packaging analysis

const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;

module.exports = {
    chainWebpack: config => {
        // 打包分析
        if (process.env.IS_ANALYZ) {
          config.plugin('webpack-report')
            .use(BundleAnalyzerPlugin, [{
              analyzerMode: 'static',
            }]);
        }
    }
}
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☞ configuration externals

Prevent packages from being packaged into bundles, and instead obtain these extension dependencies externally at runtime


module.exports = {
    configureWebpack: config => {
        config.externals = {
          'vue': 'Vue',
          'element-ui': 'ELEMENT',
          'vue-router': 'VueRouter',
          'vuex': 'Vuex',
          'axios': 'axios'
        }
    }
}
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☞. Remove the console log

Method one:

const UglifyJsPlugin = require('uglifyjs-webpack-plugin'); module.exports = { configureWebpack: config => { if (IS_PROD) { const plugins = []; plugins.push( new UglifyJsPlugin({ uglifyOptions: { compress: { warnings: false, drop_console: true, drop_debugger: False, pure_funcs: ['console.log']// Remove console}}, sourceMap: false, parallel: true}); config.plugins = [ ...config.plugins, ...plugins ]; }}}Copy the code

Method 2: Use the babel-plugin-transform-remove-console plug-in

npm i --save-dev babel-plugin-transform-remove-console
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Configure in babel.config.js

const plugins = [];
if(['production', 'prod'].includes(process.env.NODE_ENV)) {
  plugins.push("transform-remove-console")
}

module.exports = {
  presets: [["@vue/app",{"useBuiltIns": "entry"}]],
  plugins: plugins
};

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☞ Enable Gzip compression

npm i --save-dev compression-webpack-plugin
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const CompressionWebpackPlugin = require('compression-webpack-plugin'); const productionGzipExtensions = /\.(js|css|json|txt|html|ico|svg)(\? . *)? $/i; module.exports = { configureWebpack: config => { if (IS_PROD) { const plugins = []; plugins.push( new CompressionWebpackPlugin({ filename: '[path].gz[query]', algorithm: 'gzip', test: ProductionGzipExtensions, threshold: 10240, minRatio: 0.8})); config.plugins = [ ...config.plugins, ...plugins ]; }}}Copy the code

You can also open Zopfli compression is better than gzip experience can be found in the webpack.js.org/plugins/com…

npm i --save-dev @gfx/zopfli brotli-webpack-plugin
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const CompressionWebpackPlugin = require('compression-webpack-plugin'); const zopfli = require("@gfx/zopfli"); const BrotliPlugin = require("brotli-webpack-plugin"); const productionGzipExtensions = /\.(js|css|json|txt|html|ico|svg)(\? . *)? $/i; module.exports = { configureWebpack: config => { if (IS_PROD) { const plugins = []; plugins.push( new CompressionWebpackPlugin({ algorithm(input, compressionOptions, callback) { return zopfli.gzip(input, compressionOptions, callback); }, compressionOptions: {numiterations: 15}, minRatio: 0.99, test: productionGzipExtensions}); Plugins. Push (new BrotliPlugin (0.99} {test: productionGzipExtensions minRatio:)); config.plugins = [ ...config.plugins, ...plugins ]; }}}Copy the code

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☞ Provide the global style for Sass, as well as global variables

Vue.prototype.$SRC = process.env.vue_app_src; Mount the configuration information in the environment variable and access it in js using $SRC.

The CSS can use the injected SASS variable to access configuration information in environment variables

module.exports = { css: { modules: false, extract: IS_PROD, sourceMap: false, loaderOptions: { sass: {/ / to the global sass styling to share global variable data: ` @ import "~ assets/SCSS/variables. SCSS"; $src: "${process.env.VUE_APP_SRC}"; '}}}}Copy the code

Referenced in SCSS

.home {
    background: url($src + '/images/500.png');
}
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☞ Add IE compatibility

npm i --save @babel/polyfill
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Add it in main.js

import '@babel/polyfill';
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Configure the Babel. Config. Js

const plugins = [];

module.exports = {
  presets: [["@vue/app",{"useBuiltIns": "entry"}]],
  plugins: plugins
};

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☞ File upload ali OSS

To enable file uploading ali OSS, change baseUrl to the prefix of ali OSS resource URL, that is, change VUE_APP_SRC

npm i --save-dev webpack-oss
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const AliOssPlugin = require('webpack-oss'); module.exports = { configureWebpack: config => { if (IS_PROD) { const plugins = []; / / upload the file to the oss the if (process. The env. ACCESS_KEY_ID | | process. The env. ACCESS_KEY_SECRET | | process. The env. The REGION | | process. The env. The BUCKET || process.env.PREFIX) { plugins.push( new AliOssPlugin({ accessKeyId: process.env.ACCESS_KEY_ID, accessKeySecret: process.env.ACCESS_KEY_SECRET, region: process.env.REGION, bucket: process.env.BUCKET, prefix: process.env.PREFIX, exclude: /.*\.html$/, deleteAll: false }) ); } config.plugins = [ ...config.plugins, ...plugins ]; }}}Copy the code

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☞ Complete configuration

Install dependencies

npm i --save-dev compression-webpack-plugin babel-plugin-transform-remove-console  glob-all purgecss-webpack-plugin
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Other dependencies (@gFX/Zopfli, BrotLi-webpack-plugin, webpack-OSS) can be installed as required

Environment configuration

.env

NODE_ENV = 'development'
VUE_APP_BASE_API = 'https://demo.cn/api'
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.env.production

If open ali oss, VUE_APP_SRC configured to ali oss resource url prefix, such as: ‘staven.oss-cn-hangzhou.aliyuncs.com/demo’

NODE_ENV = 'production' VUE_APP_BASE_API = 'https://demo.com/api' VUE_APP_SRC = '/' ACCESS_KEY_ID = '' ACCESS_KEY_SECRET  = '' REGION = 'oss-cn-hangzhou' BUCKET = 'staven' PREFIX = 'demo'Copy the code

.env.analyz

If open ali oss, VUE_APP_SRC configured to ali oss resource url prefix, such as: ‘staven.oss-cn-hangzhou.aliyuncs.com/demo’

NODE_ENV = 'production'
IS_ANALYZ = 'analyz'

VUE_APP_BASE_API = 'https://demo.com/api'
VUE_APP_SRC = VUE_APP_SRC = '/'

ACCESS_KEY_ID = ''
ACCESS_KEY_SECRET = ''
REGION = 'oss-cn-hangzhou'
BUCKET = 'staven'
PREFIX = 'demo'
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package.json

"scripts": {
    "serve": "vue-cli-service serve",
    "build": "vue-cli-service build",
    "analyz": "vue-cli-service build --mode analyz",
    "lint": "vue-cli-service lint"
}
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babel.config.js

const plugins = [];
// if(['production', 'prod'].includes(process.env.NODE_ENV)) {
//   plugins.push("transform-remove-console")
// }

module.exports = {
  presets: [["@vue/app",{"useBuiltIns": "entry"}]],
  plugins: plugins
};
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vue.config.js

const BundleAnalyzerPlugin = require("webpack-bundle-analyzer") .BundleAnalyzerPlugin; const UglifyJsPlugin = require("uglifyjs-webpack-plugin"); const CompressionWebpackPlugin = require("compression-webpack-plugin"); // const zopfli = require("@gfx/zopfli"); // const BrotliPlugin = require("brotli-webpack-plugin"); const AliOssPlugin = require("webpack-oss"); const path = require("path"); const PurgecssPlugin = require("purgecss-webpack-plugin"); const glob = require("glob-all"); const resolve = dir => path.join(__dirname, dir); const IS_PROD = ["production", "prod"].includes(process.env.NODE_ENV); const productionGzipExtensions = /\.(js|css|json|txt|html|ico|svg)(\? . *)? $/i; module.exports = { baseUrl: IS_PROD ? Process. The env. VUE_APP_SRC | | "/" : ". / ", / / '/' by default, the deployment of packages of the basic outputDir URL: Process. The env. OutputDir | | "dist", / / 'dist, production environment assetsDir build file directory: // Static resources (js, CSS, img, fonts) directory relative to outputDir lintOnSave: false, runtimeCompiler: ProductionSourceMap: false, // SourceMap configureWebpack for production environment: Externals = {// 'vue': 'vue', // 'element-ui': 'element ', // 'vue-router': 'VueRouter', // 'vuex': 'Vuex', // 'axios': 'axios' // } if (IS_PROD) { const plugins = []; plugins.push( new PurgecssPlugin({ paths: glob.sync([ path.join(__dirname, "./src/index.html"), path.join(__dirname, "./**/*.vue"), path.join(__dirname, "./src/**/*.js") ]) }) ); plugins.push( new UglifyJsPlugin({ uglifyOptions: { compress: { warnings: false, drop_console: true, drop_debugger: False, pure_funcs: ["console.log"] // Remove console}}, sourceMap: false, parallel: true}); plugins.push( new CompressionWebpackPlugin({ filename: "[path].gz[query]", algorithm: "gzip", test: ProductionGzipExtensions, threshold: 10240, minRatio: 0.8})); / / upload files to the oss / / if (process. The env. ACCESS_KEY_ID | | process. The env. ACCESS_KEY_SECRET | | process. The env. The REGION | | process. The env. The BUCKET  || process.env.PREFIX) { // plugins.push( // new AliOssPlugin({ // accessKeyId: process.env.ACCESS_KEY_ID, // accessKeySecret: process.env.ACCESS_KEY_SECRET, // region: process.env.REGION, // bucket: process.env.BUCKET, // prefix: process.env.PREFIX, // exclude: /.*\.html$/, // deleteAll: false // }) // ); } // Zopfli compression, Need to respond to VC library/https://webpack.js.org/plugins/compression-webpack-plugin/ / plugins. Push (/ / new CompressionWebpackPlugin ({/ /  algorithm(input, compressionOptions, callback) { // return zopfli.gzip(input, compressionOptions, callback); // Iterations: {// numsionoptions: 15 //}, // minRatio: 0.99, // test: productionGzipExtensions // }) // ); / / plugins. Push (/ / new BrotliPlugin ({/ / test: productionGzipExtensions, / / minRatio: 0.99 / /}) / /); config.plugins = [...config.plugins, ...plugins]; }}, chainWebpack: config => {// fix HMR config.resolve.symlinks(true); // Fix Lazy loading routes Error:  Cyclic dependency [https://github.com/vuejs/vue-cli/issues/1669] config.plugin("html").tap(args => { args[0].chunksSortMode = "none"; return args; }); Set ("@", resolve(" SRC ")). Set ("assets", resolve(" SRC /assets")). Set ("components", resolve("src/components")) .set("layout", resolve("src/layout")) .set("base", resolve("src/base")) .set("static", resolve("src/static")); If (process.env.is_analyz) {config.plugin("webpack-report"). Use (BundleAnalyzerPlugin, [{analyzerMode: "static" } ]); } // Multi-page configuration, To add the hash/js/config. The output. ChunkFilename (` js / [name] [8] chunkhash: js `) / / / config/modify image output path. The rule (' images') module / /. // .test(/\.(png|jpe?g|gif|ico)(\?.*)?$/) // .use('url-loader') // .loader('url-loader') // .options({ // name: path.join('.. /assets/', 'img/[name].[ext]') //})}, CSS: {modules: false, extract: IS_PROD, // Add hash to CSS suffix {/ / filename: 'CSS / [name] [8] hash: CSS', / / chunkFilename: 'CSS / [name] [8] hash: CSS' / /}, sourceMap: False, loaderOptions: {sass: {/ / to the global sass styling to Shared global variables / / data: ` @ import "~ assets/SCSS/variables. SCSS"; $src: "${process.env.VUE_APP_SRC}"; ` data: `$src: "${process.env.VUE_APP_SRC}"; } // plugins: [// require('postcss-pxtorem')({// rootValue: 1, / / / / conversion of base selectorBlackList: [' weui ', 'el], / / ignore conversion regular match / / propList: [' *'] / / / / / /}}}}), pluginOptions: {// install vue cli-plugin-style-resources-loader plug-in // add global style global. SCSS // "style-resources-loader": {// install vue cli-plugin-style-resources-loader plug-in // add global style global. SCSS // "style-resources-loader": {// preProcessor: "scss", // patterns: [ // resolve(__dirname, "./src/scss/scss/variables.scss") // ] // } }, parallel: require("os").cpus().length > 1, pwa: {}, devServer: { // overlay: { // warnings: true, // errors: true // }, open: IS_PROD, host: "0.0.0.0", port: 8000, HTTPS: false, hotOnly: false, proxy: {"/ API ": {target: Process. The env. VUE_APP_BASE_API | | "http://127.0.0.1:8080", changeOrigin: true}}}};Copy the code

☞ Configure multiple environment variables

Env serve Default environment variable

.env.production build The default environment variable

Env. analyz is used for webpack-bundle-Analyzer package analysis

☞ Basic Configuration vue.config.js

☞ Configure proxy across domains

☞ Repair HMR(hot update) failure

☞ Fix Lazy loading routes Error: Cyclic DependencyGithub.com/vuejs/vue-c…

☞ Add alias

☞ Remove redundant and invalid CSS

☞ Add packaging analysis

☞ configuration externals

☞. Remove the console log

Method one:

Method 2: Use the babel-plugin-transform-remove-console plug-in

☞ Enable Gzip compression

☞ Provide the global style for Sass, as well as global variables

☞ Add IE compatibility

☞ File upload ali OSS

☞ Complete configuration

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