vue.config.js

'use strict'
const LodashModuleReplacementPlugin = require('lodash-webpack-plugin')
const CompressionPlugin = require('compression-webpack-plugin')
const formatDate = require('date-fns').format
const path = require('path')
const defaultSettings = require('./src/config/settings.js')
const { dependencies, devDependencies, version } = require('./package')

// app name
const name = defaultSettings.title || 'SF Admin Template' // page title

function resolve(dir) {
  return path.join(__dirname, dir)
}

// inject info
const __SFADMIN_INFO__ = {
  pkg: { dependencies, devDependencies, version, name },
  lastBuildTime: formatDate(new Date(), 'yyyy-MM-dd HH:mm:ss')
}

process.env.VUE_APP_SFADMIN_INFO = JSON.stringify(__SFADMIN_INFO__)

// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, Mac: sudo npm run
// You can change the port by the following methods:
// port = 9528 npm run dev OR npm run dev --port = 9528
const port = process.env.port || process.env.npm_config_port || 9528 // dev port

// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
  /**
   * You will need to set publicPath if you plan to deploy your site under a sub path,
   * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
   * then publicPath should be set to "/bar/".
   * In most cases please use '/' !!!
   * Detail: https://cli.vuejs.org/config/#publicpath
   */
  publicPath: '/',
  outputDir: 'dist',
  assetsDir: 'static',
  lintOnSave: process.env.NODE_ENV === 'development',
  productionSourceMap: false,
  /**
   * add vue-echarts fix
   * https://github.com/ecomfe/vue-echarts/blob/5.x/README.zh_CN.md#引入源码版本
   */
  transpileDependencies: ['vue-echarts', 'resize-detector'],
  devServer: {
    port: port,
    open: true,
    overlay: {
      warnings: false,
      errors: true
    },
    proxy: {
      '/api': {
        target: 'http://127.0.0.1:7001',
        pathRewrite: { '^/api': '' }
      },
      '/ws': {
        target: 'ws://127.0.0.1:7002',
        ws: true
      }
    }
  },
  configureWebpack: {
    // provide the app's title in webpack's name field, so that
    // it can be accessed in index.html to inject the correct title.
    name: name,
    resolve: {
      alias: {
        '@': resolve('src')
      }
    }
  },
  chainWebpack(config) {
    // it can improve the speed of the first screen, it is recommended to turn on preload
    config.plugin('preload').tap(() => [
      {
        rel: 'preload',
        // to ignore runtime.js
        // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
        fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
        include: 'initial'
      }
    ])

    // when there are many pages, it will cause too many meaningless requests
    config.plugins.delete('prefetch')

    // set svg-sprite-loader
    config.module
      .rule('svg')
      .exclude.add(resolve('src/icons'))
      .end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })
      .end()

    config.when(process.env.NODE_ENV !== 'development', config => {
      config
        .plugin('ScriptExtHtmlWebpackPlugin')
        .after('html')
        .use('script-ext-html-webpack-plugin', [
          {
            // `runtime` must same as runtimeChunk name. default is `runtime`
            inline: /runtime\..*\.js$/
          }
        ])
        .end()
      // loadsh
      config.plugin('loadshReplace').use(new LodashModuleReplacementPlugin())
      // gzipped
      config.plugin('CompressionPlugin').use(
        new CompressionPlugin({
          algorithm: 'gzip',
          test: /\.(js|css)$/, // 匹配文件名
          threshold: 10240, // 对超过10k的数据压缩
          deleteOriginalAssets: false, // 不删除源文件
          minRatio: 0.8 // 压缩比
        })
      )
      // split
      config.optimization.splitChunks({
        chunks: 'all',
        cacheGroups: {
          libs: {
            name: 'chunk-libs',
            test: /[\\/]node_modules[\\/]/,
            priority: 10,
            chunks: 'initial' // only package third parties that are initially dependent
          },
          elementUI: {
            name: 'chunk-elementUI', // split elementUI into a single package
            priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
            test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
          },
          commons: {
            name: 'chunk-commons',
            test: resolve('src/components'), // can customize your rules
            minChunks: 3, //  minimum common number
            priority: 5,
            reuseExistingChunk: true // 表示是否使用已有的 chunk，如果为 true 则表示如果当前的 chunk 包含的模块已经被抽取出去了，那么将不会重新生成新的。
          }
        }
      })
      // https:// webpack.js.org/configuration/optimization/#optimizationruntimechunk
      config.optimization.runtimeChunk('single')
    })
  }
}