vue 打包dist 文件太大，怎么解决？

Question

下面是我进行npm run dist 的webpack，但是打包出来的sendMessageQj.js文件有7MB多，就是有几个组件，然后打包出来了，还有一个编辑器的源码，还可以再从这个文件里面添加插件进行体积优化吗？

const path = require('path')
const webpack = require('webpack')
const utils = require('./utils')
var package = require('../package.json');

module.exports = {
  entry: './plugins/install.js',
  output: {
    path: path.resolve(process.cwd(), `./libs@${package.version}`),
    publicPath: '/dist/',
    filename: 'sendMessageQj.js',
    library: 'sendMessageQj', // library 指定的就是你使用 require 时的模块名，这里便是 require('BuriedPoint')
    libraryTarget: 'umd', // libraryTarget 会生成不同 umd 的代码，可以只是 commonjs 标准的，也可以是指 amd 标准的，也可以只是通过 script 标签引入的
    umdNamedDefine: true // 会对 UMD 的构建过程中的 AMD 模块进行命名。否则就使用匿名的 define。
  },
  module: {
    rules: [
        {
          test: /.css$/,
          use: [
            'vue-style-loader',
            'css-loader'
          ],
        },
        {
          test: /.scss$/,
          use: [
            'vue-style-loader',
            'css-loader',
            'sass-loader'
          ],
        },
        {
          test: /.sass$/,
          use: [
            'vue-style-loader',
            'css-loader',
            'sass-loader?indentedSyntax'
          ],
        },
        {
          test: /.vue$/,
          loader: 'vue-loader',
          options: {
            loaders: {
              // Since sass-loader (weirdly) has SCSS as its default parse mode, we map
              // the "scss" and "sass" values for the lang attribute to the right configs here.
              // other preprocessors should work out of the box, no loader config like this necessary.
              'scss': [
                'vue-style-loader',
                'css-loader',
                'sass-loader'
              ],
              'sass': [
                'vue-style-loader',
                'css-loader',
                'sass-loader?indentedSyntax'
              ]
            }
            // other vue-loader options go here
          }
        },
        {
          test: /.js$/,
          loader: 'babel-loader',
          exclude: /node_modules/
        },
        {
          test: /.(png|jpg|gif|svg)$/,
          loader: 'file-loader',
          options: {
            name: '[name].[ext]?[hash]'
          }
        },
        {
          test: /.(woff2?|eot|ttf|otf)(?.*)?$/,
          loader: 'url-loader',
          options: {
            limit: 100000,
            name: utils.assetsPath('fonts/[name].[hash:7].[ext]')
          }
        }
    ]
  },
  resolve: {
    alias: {
      'vue$': 'vue/dist/vue.esm.js'
    },
    extensions: ['*', '.js', '.vue', '.json']
  },
  devServer: {
    historyApiFallback: true,
    noInfo: true,
    overlay: true
  },
  performance: {
    hints: false
  },
  devtool: '#eval-source-map'
}

if (process.env.NODE_ENV === 'production') {
  module.exports.devtool = '#source-map'
  // http://vue-loader.vuejs.org/en/workflow/production.html
  module.exports.plugins = (module.exports.plugins || []).concat([
    new webpack.DefinePlugin({
      'process.env': {
        NODE_ENV: '"production"'
      }
    }),
    new webpack.optimize.UglifyJsPlugin({
      sourceMap: true,
      compress: {
        warnings: false
      }
    }),
    new webpack.LoaderOptionsPlugin({
      minimize: true
    })
  ])
}

install.js

Answer 1

用webpack-bundle-analyzer检查下模块结构,合并冗余模块.

你这个看起来是一个插件,可以修改插件结构,改成一个core+N个功能模块的结构,然后每个功能模块拆分为单独js,core提供一个加载模块的功能.

使用时的伪代码

import Core from "sendMessageQj"
Core.load('module-1');
Core.load('module-2');

Vue.use(Core);