webpack-react-starter/webpack.config.js at master · webpack-starter/webpack-react-starter · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
const path = require('path');
const htmlWebpackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const HardSourceWebpackPlugin = require('hard-source-webpack-plugin');
const HotModuleReplacementPlugin = require('webpack/lib/HotModuleReplacementPlugin');

module.exports = function (err, webpackConfig) {
  console.log('err:', err);
  const prod = webpackConfig.mode === 'production';
  return {
    entry: './src/index.js',
    output: {
      filename: '[name]_[hash:8].js',
      path: path.resolve(__dirname, 'dist'),
    },
    devtool: prod ? false : 'source-map',
    watchOptions: {
      ignored: /node_modules/,
    },
    devServer: {
      hot: true,
      open: true,
    },
    resolve: {
      alias: {
        components: './src/components',
      },
      extensions: ['.js', '.jsx'],
      modules: [path.resolve(__dirname, 'node_modules')],
      // 因为使用webpack4的tree shaking功能了，所以针对npm的第三方模块，优先使用es6模块语法
      mainFields: ['jsnext:main', 'browser', 'main'],
    },
    module: {
      rules: [
        {
          test: [
            /\.jsx?$/,
          ],
          use: {
            loader: 'babel-loader',
            options: {
              cacheDirectory: true,
              presets: [
                [
                  'env',
                  {
                    modules: false, // 保留es6模块化的语句，为了tree shaking
                  },
                ],
                'stage-2',
                'react'
              ],
              plugins: [
                [
                  'transform-runtime',
                  {
                    "polyfill": true
                  }
                ],
              ]
            },
          },
          include: path.resolve(__dirname, 'src'),
        },
        {
          test: /\.css$/,
          exclude: /node_modules/,
          use: [
            MiniCssExtractPlugin.loader,
            {
              loader: 'css-loader',
              options: {
                modules: true, // 开启css-modules功能
                localIdentName: '[name]__[local]-[hash:base64:5]'
              }
            },
            {
              loader: 'postcss-loader',
            },
          ],
        }
      ]
    },
    plugins: [
      new HotModuleReplacementPlugin(),
      // 缓存插件，提升性能
      new HardSourceWebpackPlugin(),
      new htmlWebpackPlugin({
        title: '首页',
        filename: 'index.html',
        template: './entry.ejs',
      }),
      new MiniCssExtractPlugin({
        filename: '[name].css',
        chunkFilname: '[id].css',
      })
    ]
  }
}