live-telecast-tk-ui-h5/vue.config.js

'use strict'
const path = require('path')
require("babel-polyfill");
const productionGzipExtensions = ['js', 'css'];
const UglifyJsPlugin = require("uglifyjs-webpack-plugin");
const CompressionWebpackPlugin = require('compression-webpack-plugin');
const isProduction = process.env.NODE_ENV === 'production';
function resolve(dir) {
  return path.join(__dirname, dir)
}


// 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 = 8080 npm run dev OR npm run dev --port = 8080
const port = process.env.port || process.env.npm_config_port || 8080 // 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: false,//process.env.NODE_ENV === 'development'
  productionSourceMap: false,
  devServer: {
    port: port,
    open: true,
    overlay: {
      warnings: false,
      errors: true
    },
  },
  configureWebpack: config => {
    // 入口文件
    config.entry.app = ["babel-polyfill", "./src/main.js"];
    config.externals = {
      'vue': 'Vue',
      axios: "axios",
      'vue-router': 'VueRouter'
    };
 
    // 删除console插件
    let plugins = [
      new UglifyJsPlugin({
        uglifyOptions: {
          compress: {
            // warnings: false, // `warnings` is not a supported option
            drop_console: true,
            drop_debugger: true
          },
          output: {
            // 去掉注释内容
            comments: true
          }
        },
        cache: true, //启用/禁用文件缓存（类型可布尔也可是字符串）
        sourceMap: false,
        parallel: true
      })
    ];
    // 只有打包生产环境才需要将console删除
    if (isProduction) {
      config.plugins = [...config.plugins, ...plugins];
    }
    if (isProduction) {
      config.plugins.push(new CompressionWebpackPlugin({
        algorithm: 'gzip',
        test: new RegExp('\\.(' + productionGzipExtensions.join('|') + ')$'),
        threshold: 10240,
        // deleteOriginalAssets:true, //删除源文件，不建议
        minRatio: 0.7
      }))
    }
  },

  chainWebpack(config) {
    // it can improve the speed of the first screen, it is recommended to turn on preload
    // 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')
    // 解决ie11兼容ES6
    config.entry('main').add('babel-polyfill')
    // config.module.rule('images')
    //   .test(/\.(png|jpe?g|gif)(\?.*)?$/)
    //   .use('image-webpack-loader')
    //   .loader('image-webpack-loader')
    //   .options({ bypassOnDebug: true })
  
  // 开启图片压缩
  // config.module.rule('images')
  //   .test(/\.(png|jpe?g|gif)(\?.*)?$/)
  // .use('url-loader')
  // .loader('url-loader')
  // .use('image-webpack-loader')
  // .loader('image-webpack-loader')
  // .options({ bypassOnDebug: true })
  // 开启js、css压缩


  // set svg-sprite-loader
  config.module
    .rule('svg')
    .exclude.add(resolve('src/icons'))
    .end()
    config.module
    .rule('icons')
    .test(/\.svg$/)
    .include.add(resolve('src/icons'))
    .end()
    .use('svg-sprite-loader')
    .loader('svg-sprite-loader')
    .options({
      symbolId: 'icon-[name]'
    })
    .end()
    //process.env.NODE_ENV !== 'development'
    config
      .when(true,
      config => {
        config
          .plugin('ScriptExtHtmlWebpackPlugin')
          .after('html')
          .use('script-ext-html-webpack-plugin', [{
            // `runtime` must same as runtimeChunk name. default is `runtime`
            inline: /runtime\..*\.js$/
          }])
          .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')
      }
    )
},
  transpileDependencies: [
    'biyi-admin', // 指定对第三方依赖包进行babel-polyfill处理
  ]
}