SW_webend/vue.config.js

'use strict'
const path = require('path')
const defaultSettings = require('./src/settings.js')
const webpack = require("webpack")

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

const name = defaultSettings.title || '数之道' // page title

// 需要排除的包对象
let externals = {}
// 需要配置的 CDN 链接
let CDN = { css: [], js: [] }
// 判断是否是生产环境
if (/*process.env.NODE_ENV === 'production'*/true) {
  externals = {
    vue: 'Vue',
    'element-ui': 'ELEMENT',
    'vue-router': 'VueRouter',
    axios: 'axios',
    vuex: 'vuex',
  }

  CDN = {
    css: [
      'https://cdn.bootcdn.net/ajax/libs/element-ui/2.15.9/theme-chalk/index.min.css'
    ],

    js: [
      // vue cdn包必须在第一个
      'https://cdn.bootcdn.net/ajax/libs/vue/2.6.14/vue.min.js',
      'https://cdn.bootcdn.net/ajax/libs/element-ui/2.15.9/index.min.js',
      'https://cdn.bootcdn.net/ajax/libs/vue-router/3.0.2/vue-router.min.js',
      'https://cdn.bootcdn.net/ajax/libs/axios/0.18.1/axios.min.js',
      'https://cdnjs.cloudflare.com/ajax/libs/vuex/3.1.0/vuex.min.js'
    ]
  }
}

// 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 method:
// port = 9527 npm run dev OR npm run dev --port = 9527
const port = process.env.port || process.env.npm_config_port || 80 // dev port

const CompressionPlugin = require('compression-webpack-plugin')
const zlib = require('zlib')

// 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: false, //关闭eslint
  productionSourceMap: false,

  devServer: {
    host: 'localhost',
    port: port,
    open: true,
    proxy: {
      [process.env.VUE_APP_BASE_API]: {
        // target: 'http://192.168.44.130:10080', // 后端接口
        target: 'http://localhost:10080',
        changeOrigin: true, // 是否跨域
        pathRewrite: {
          ["^" + process.env.VUE_APP_BASE_API]: "",
        },
      },
      '/Api': {
        target: 'http://localhost:10080/Api',
        changeOrigin: true, // 是否跨域
        pathRewrite: {
          ["^/Api"]: "",
        },
      },
      '/Api/': {
        target: 'http://localhost:10080/Api/',
        changeOrigin: true, // 是否跨域
        pathRewrite: {
          ["^/Api"]: "",
        },
      },
      '/upgrade':{
        target: 'E:/datao',
        changeOrigin: true, // 是否跨域
      }
    },
    overlay: {
      warnings: false,
      errors: true
    },
    disableHostCheck: 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')
      }
    },
    // devtool: "source-map"，
    plugins: [
      // 压缩成 .gz 文件
      new CompressionPlugin({
        filename: '[path][base].gz',
        algorithm: 'gzip',
        test: /\.js$|\.css$|\.html$/,
        threshold: 10240,
        minRatio: 0.8
      }),
      // 压缩成 .br 文件，如果 zlib 报错无法解决，可以注释这段使用代码，一般本地没问题，需要注意线上服务器会可能发生找不到 zlib 的情况。
      // new CompressionPlugin({      //仅https模式下有效
      //   filename: '[path][base].br',
      //   algorithm: 'brotliCompress',
      //   test: /\.(js|css|html|svg)$/,
      //   compressionOptions: {
      //     params: {
      //       [zlib.constants.BROTLI_PARAM_QUALITY]: 11
      //     }
      //   },
      //   threshold: 10240,
      //   minRatio: 0.8
      // }),
      new webpack.optimize.MinChunkSizePlugin({
        minChunkSize: 10240 // Minimum number of characters
      })
    ],
    externals
  },
  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'
      }
    ])

    // 注入cdn变量 (打包时会执行)
    config.plugin('html').tap(args => {
      args[0].cdn = CDN // 配置 CDN 给插件
      return args
    })

    // 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()
          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
                }
              }
            })
          // https:// webpack.js.org/configuration/optimization/#optimizationruntimechunk
          config.optimization.runtimeChunk('single')
        }
      )
  }
}