Webpack 用小项目创建大文件 [英] Webpack creating large file with small project

问题描述

我的 webpack 生成了一个大型 main.js 文件 (1.7mb)，其中包含一个包含约 20-30 个文件的小项目，每个文件少于 100 行.所需的依赖项很少(React、Fluxible)，我正在使用我能理解的每个优化插件:

I got my webpack generating a large main.js file (1.7mb) with a small project of ~20-30 files less than 100 lines each. The dependencies required are few in number (React, Fluxible) and I am using every optimize plugin I can understand:

module.exports = {
  output: {
    path: './build',
    publicPath: '/public/',
    filename: '[name].js'
  },
  debug: false,
  devtool: 'eval',
  target: 'web',
  entry: [
  'bootstrap-sass!./bootstrap-sass.config.js',
  './client.js',
  ],
  stats: {
    colors: true,
    reasons: false
  },
  resolve: {
    extensions: ['', '.js'],
    alias: {
      'styles': __dirname + '/src/styles',
      'components': __dirname + '/src/scripts/components',
      'actions': __dirname + '/src/scripts/actions',
      'stores': __dirname + '/src/scripts/stores',
      'constants': __dirname + '/src/scripts/constants',
      'mixins': __dirname + '/src/scripts/mixins',
      'configs': __dirname + '/src/scripts/configs',
      'utils': __dirname + '/src/scripts/utils'
    }
  },
  module: {
    loaders: [
      { test: /\.css$/, loader: 'style!css' },
      { test: /\.js$/, exclude: /node_modules/, loader: require.resolve('babel-loader') },
      { test: /\.json$/, loader: 'json-loader'},
      { test: /\.(png|svg|jpg)$/, loader: 'url-loader?limit=8192' },
      { test: /\.(ttf|eot|svg|woff|woff(2))(\?v=[0-9]\.[0-9]\.[0-9])?$/, loader: "url?name=/[name].[ext]"},
      { test: /\.scss$/,
        loader: ExtractTextPlugin.extract('style-loader',
          'css!sass?outputStyle=expanded&' +
          "includePaths[]=" +
          (path.resolve(__dirname, "./node_modules"))
          )
      }
    ]
  },
  plugins: [
    new webpack.NoErrorsPlugin(),
    new webpack.ProvidePlugin({
      $: "jquery",
      jQuery: "jquery",
      "windows.jQuery": "jquery"
    }),
    new ExtractTextPlugin("[name].css", {allChunks: true}),
    new webpack.optimize.DedupePlugin(),
    new webpack.optimize.UglifyJsPlugin(),
    new webpack.optimize.OccurenceOrderPlugin(),
    new webpack.optimize.AggressiveMergingPlugin()
  ],

};

我做错了什么或者我在哪里可以进一步改善文件的大小?

What am I doing wrong or where can I further improve the size of the file?

推荐答案

我使用 uglifyjs 和默认的 uglifyjs 在这里做这些事情(devtools: 'source-map')，我的反应从 2.1mb 减少到 160kb gzipped设置(没有 gzip，它最终约为 670kb).

I got my react down from 2.1mb down to 160kb gzipped just by doing the things here (devtools: 'source-map'), using uglifyjs with the default settings (without gzip it ends up being about 670kb).

它可能没有那么很棒，但至少它不再疯狂了.

It's probably not that great, but at least it's not crazy anymore.

为了后代，这是我的 webpack 配置:

For posterity, here is my webpack config:

// webpack.config.js
var webpack = require('webpack');

module.exports = {
    devtool: 'source-map',
    entry: [
        'webpack-dev-server/client?http://127.0.0.1:2992',
        'webpack/hot/only-dev-server',
        './js/main'
    ],
    output: {
        path: './out/',
        filename: 'main.js',
        chunkFilename: '[name]-[chunkhash].js',
        publicPath: 'http://127.0.0.1:2992/out/'
    },
    module: {
        loaders: [
            {
                test: /\.jsx?$/,
                exclude: /(node_modules|bower_components)/,
                loaders: ['react-hot', 'babel?optional=runtime&stage=0&plugins=typecheck']
            }
        ]
    },
    progress: true,
    resolve: {
        modulesDirectories: [
            'js',
            'node_modules'
        ],
        extensions: ['', '.json', '.js']
    },
    plugins: [
        new webpack.HotModuleReplacementPlugin(),
        new webpack.NoErrorsPlugin(),
        new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
        new webpack.DefinePlugin({
            'process.env': {
                // This has effect on the react lib size
                'NODE_ENV': JSON.stringify('production'),
            }
        }),
        new webpack.optimize.UglifyJsPlugin()
    ]
};

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