vue.config.js

const path = require('path')
const webpack = require('webpack')
const ThemeColorReplacer = require('webpack-theme-color-replacer')
const generate = require('@ant-design/colors/lib/generate').default

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

// vue.config.js
const CompressionPlugin = require('compression-webpack-plugin')
module.exports = {
 
  configureWebpack: {
    externals: {
      // 要引入的资源的名字：该模块提供给外部引用的名字(由对应的库自定)
      'vue': 'Vue',
      'vue-router': 'VueRouter',      
      'element-ui': 'ELEMENT'   
    },    
    plugins: [
      // Ignore all locale files of moment.js
      new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
      // 生成仅包含颜色的替换样式（主题色等）
      // TODO 需要增加根据环境不开启主题需求
      new ThemeColorReplacer({
        fileName: 'css/theme-colors-[contenthash:8].css',
        matchColors: getAntdSerials('#1890ff'), // 主色系列
        // 改变样式选择器，解决样式覆盖问题
        changeSelector (selector) {
          console.log('selector', selector)
          switch (selector) {
            case '.ant-calendar-today .ant-calendar-date':
              return ':not(.ant-calendar-selected-date):not(.ant-calendar-selected-day)' + selector
            case '.ant-btn:focus,.ant-btn:hover':
              return '.ant-btn:focus:not(.ant-btn-primary),.ant-btn:hover:not(.ant-btn-primary)'
            case '.ant-steps-item-process .ant-steps-item-icon > .ant-steps-icon':
              return ':not(.ant-steps-item-process)' + selector
            case '.ant-btn.active,.ant-btn:active':
              return '.ant-btn.active:not(.ant-btn-primary),.ant-btn:active:not(.ant-btn-primary)'
            case '.ant-menu-horizontal>.ant-menu-item-active,.ant-menu-horizontal>.ant-menu-item-open,.ant-menu-horizontal>.ant-menu-item-selected,.ant-menu-horizontal>.ant-menu-item:hover,.ant-menu-horizontal>.ant-menu-submenu-active,.ant-menu-horizontal>.ant-menu-submenu-open,.ant-menu-horizontal>.ant-menu-submenu-selected,.ant-menu-horizontal>.ant-menu-submenu:hover':
            case '.ant-menu-horizontal > .ant-menu-item-active,.ant-menu-horizontal > .ant-menu-item-open,.ant-menu-horizontal > .ant-menu-item-selected,.ant-menu-horizontal > .ant-menu-item:hover,.ant-menu-horizontal > .ant-menu-submenu-active,.ant-menu-horizontal > .ant-menu-submenu-open,.ant-menu-horizontal > .ant-menu-submenu-selected,.ant-menu-horizontal > .ant-menu-submenu:hover':
              return '.ant-menu-horizontal > .ant-menu-item-active,.ant-menu-horizontal > .ant-menu-item-open,.ant-menu-horizontal > .ant-menu-item-selected,.ant-menu-horizontal > .ant-menu-item:hover,.ant-menu-horizontal > .ant-menu-submenu-active,.ant-menu-horizontal > .ant-menu-submenu-open,.ant-menu-horizontal:not(.ant-menu-dark) > .ant-menu-submenu-selected,.ant-menu-horizontal:not(.ant-menu-dark) > .ant-menu-submenu:hover'
            default :
              return selector
          }
        }
      })
    ]
  },

  chainWebpack: (config) => {
    config.resolve.alias
      .set('@$', resolve('src'))

    const svgRule = config.module.rule('svg')
    svgRule.uses.clear()
    svgRule
      .oneOf('inline')
      .resourceQuery(/inline/)
      .use('vue-svg-icon-loader')
      .loader('vue-svg-icon-loader')
      .end()
      .end()
      .oneOf('external')
      .use('file-loader')
      .loader('file-loader')
      .options({
        name: 'assets/[name].[hash:8].[ext]'
      })


          // 这里是对环境的配置，不同环境对应不同的BASE_URL，以便axios的请求地址不同
    config.plugin('define').tap(args => {
      args[0]['process.env'].BASE_URL = JSON.stringify(process.env.BASE_URL)
      return args
    })
    if (process.env.NODE_ENV === 'production') {
      // #region 启用GZip压缩
      config.plugin('compressionPlugin')
      .use(new CompressionPlugin({
          filename: '[path].gz[query]',
          algorithm: 'gzip',
          //exclude: /webConfig\.js$/,  //不允许被压缩的
          test: new RegExp('\\.(' + ['js', 'css','json','html','txt','ico','svg'].join('|') + ')$'),  //允许被压缩
          threshold: 10240, // 只有大小大于该值的资源会被处理 10240
          minRatio: 0.8, // 只有压缩率小于这个值的资源才会被处理
          deleteOriginalAssets: false, // 删除原文件
          cache: true
      }));

      // #endregion
    } 
    /* svgRule.oneOf('inline')
      .resourceQuery(/inline/)
      .use('vue-svg-loader')
      .loader('vue-svg-loader')
      .end()
      .end()
      .oneOf('external')
      .use('file-loader')
      .loader('file-loader')
      .options({
        name: 'assets/[name].[hash:8].[ext]'
      })
    */
  },

  css: {
    loaderOptions: {
      less: {
        modifyVars: {
          /* less 变量覆盖，用于自定义 ant design 主题 */

          /*
          'primary-color': '#F5222D',
          'link-color': '#F5222D',
          'border-radius-base': '4px',
          */
        },
        javascriptEnabled: true
      }
    }
  },

  devServer: {
    // development server port 8000
    port: 4200
    // proxy: {
    //   '/api': {
    //     // target: 'https://mock.ihx.me/mock/5baf3052f7da7e07e04a5116/antd-pro',
    //     target: 'https://mock.ihx.me/mock/5baf3052f7da7e07e04a5116/antd-pro',
    //     ws: false,
    //     changeOrigin: true
    //   }
    // }
  },

  // disable source map in production
  productionSourceMap: false,
  lintOnSave: false,
  // babel-loader no-ignore node_modules/*
  transpileDependencies: []
}

function getAntdSerials (color) {
  // 淡化（即less的tint）
  const lightens = new Array(9).fill().map((t, i) => {
    return ThemeColorReplacer.varyColor.lighten(color, i / 10)
  })
  const colorPalettes = generate(color)
  return lightens.concat(colorPalettes)
}