1 | //
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2 |
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3 |
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4 |
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5 | const webpack = require('webpack')
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6 | const path = require('path')
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7 | const AssetsPlugin = require('assets-webpack-plugin')
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8 | const ExtractTextPlugin = require('extract-text-webpack-plugin')
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9 | const CaseSensitivePathsPlugin = require('case-sensitive-paths-webpack-plugin')
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10 | const autoprefixer = require('autoprefixer')
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11 | const { ArrayUtils, LogicUtils } = require('constellate-dev-utils')
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12 | const generateBabelConfig = require('./generate-babel-config')
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13 |
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14 |
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15 |
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16 |
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17 |
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18 | module.exports = function generateConfig(pkg , options = {}) {
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19 | const { devServerPort } = options
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20 |
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21 | const env = process.env.NODE_ENV
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22 |
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23 | const webpackConfig = {
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24 | // Keep quiet in dev mode.
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25 | stats: LogicUtils.onlyIf(env === 'development', 'none'),
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26 |
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27 | target: 'web',
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28 |
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29 | entry: {
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30 | // We name it "index" to make it easy to resolve the entry files within
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31 | // the bundled output.
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32 | index: [
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33 | // The application source entry.
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34 | pkg.paths.packageEntryFile,
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35 | ],
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36 | },
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37 |
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38 | output: {
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39 | // The dir in which our bundle should be output.
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40 | path: pkg.paths.packageBuildOutput,
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41 |
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42 | // The filename format for the entry chunk.
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43 | // eslint-disable-next-line no-nested-ternary
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44 | filename:
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45 | env === 'production'
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46 | ? // For a production build of a web target we want a cache busting
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47 | // name format.
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48 | '[name]-[chunkhash].js'
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49 | : // Else we use a predictable name format.
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50 | '[name].js',
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51 |
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52 | // The name format for any additional chunks produced for the bundle.
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53 | chunkFilename:
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54 | env === 'development' ? '[name]-[hash].js' : '[name]-[chunkhash].js',
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55 |
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56 | publicPath:
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57 | env === 'development' && !!devServerPort
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58 | ? // As we run a seperate webpack-dev-server in development we need an
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59 | // absolute http path for the public path.
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60 | `http://0.0.0.0:${devServerPort}/constellate/${pkg.name}/`
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61 | : `/constellate/${pkg.name}/`,
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62 |
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63 | // Add /* filename */ comments to generated require()s in the output.
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64 | pathinfo: env === 'development',
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65 |
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66 | libraryTarget: 'var',
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67 | },
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68 |
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69 | resolve: {
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70 | extensions: ['.js', '.json', '.jsx'],
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71 | modules: ['node_modules', pkg.paths.monoRepoRootNodeModules],
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72 | },
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73 |
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74 | // Source map settings.
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75 | devtool:
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76 | env === 'development'
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77 | ? // Produces an external source map (lives next to bundle output files).
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78 | 'source-map'
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79 | : // Produces no source map.
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80 | 'hidden-source-map',
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81 | // Only maps line numbers
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82 | // 'cheap-eval-source-map',
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83 |
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84 | // https://webpack.js.org/configuration/performance/
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85 | performance: {
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86 | hints: env === 'development' ? false : 'warning',
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87 | },
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88 |
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89 | plugins: ArrayUtils.removeNil([
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90 | new webpack.EnvironmentPlugin({
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91 | // It is really important to use NODE_ENV=production in order to use
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92 | // optimised versions of some node_modules, such as React.
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93 | NODE_ENV: env,
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94 | // This may be handy for someone...
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95 | CONSTELLATE_IS_WEBPACK: JSON.stringify(true),
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96 | }),
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97 |
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98 | // Generates a JSON file containing a map of all the output files for
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99 | // our webpack bundle.
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100 | new AssetsPlugin({
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101 | filename: 'webpack-manifest.json',
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102 | path: pkg.paths.packageBuildOutput,
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103 | }),
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104 |
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105 | // Moment.js is an extremely popular library that bundles large locale files
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106 | // by default due to how Webpack interprets its code. This is a practical
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107 | // solution that requires the user to opt into importing specific locales.
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108 | // https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
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109 | // You can remove this if you don't use Moment.js:
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110 | new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
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111 |
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112 | // This makes debugging much easier as webpack will add filenames to
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113 | // modules
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114 | LogicUtils.onlyIf(
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115 | env === 'development',
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116 | () => new webpack.NamedModulesPlugin(),
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117 | ),
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118 |
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119 | // For our production web targets we need to make sure we pass the required
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120 | // configuration to ensure that the output is minimized/optimized.
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121 | LogicUtils.onlyIf(
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122 | env === 'production',
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123 | () =>
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124 | new webpack.optimize.UglifyJsPlugin({
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125 | // sourceMap: config('includeSourceMapsForOptimisedClientBundle'),
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126 | compress: {
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127 | screw_ie8: true,
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128 | warnings: false,
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129 | },
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130 | mangle: {
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131 | screw_ie8: true,
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132 | },
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133 | output: {
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134 | comments: false,
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135 | screw_ie8: true,
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136 | },
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137 | }),
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138 | ),
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139 |
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140 | // For our production web targets we need to make sure we pass the required
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141 | // configuration to ensure that the output is minimized/optimized.
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142 | LogicUtils.onlyIf(
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143 | env === 'production',
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144 | () =>
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145 | new webpack.LoaderOptionsPlugin({
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146 | minimize: true,
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147 | debug: process.env.DEBUG === 'true',
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148 | }),
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149 | ),
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150 |
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151 | // Watcher doesn't work well if you mistype casing in a path so we use
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152 | // a plugin that prints an error when you attempt to do this.
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153 | // See https://github.com/facebookincubator/create-react-app/issues/240
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154 | LogicUtils.onlyIf(
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155 | env === 'development',
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156 | () => new CaseSensitivePathsPlugin(),
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157 | ),
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158 |
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159 | // TODO: Look at how this would work with yarn workspaces
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160 | /*
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161 | // If you require a missing module and then `npm install` it, you still have
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162 | // to restart the development server for Webpack to discover it. This plugin
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163 | // makes the discovery automatic so you don't have to restart.
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164 | // See https://github.com/facebookincubator/create-react-app/issues/186
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165 | LogicUtils.onlyIf(
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166 | env === 'development',
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167 | () => new WatchMissingNodeModulesPlugin(package.paths.packageNodeModules),
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168 | ),
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169 | */
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170 |
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171 | // We don't want webpack errors to occur during development as it will
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172 | // kill our dev servers.
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173 | LogicUtils.onlyIf(
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174 | env === 'development',
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175 | () => new webpack.NoEmitOnErrorsPlugin(),
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176 | ),
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177 |
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178 | // We need this plugin to enable hot reloading of our client.
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179 | LogicUtils.onlyIf(
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180 | env === 'development',
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181 | () => new webpack.HotModuleReplacementPlugin(),
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182 | ),
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183 |
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184 | // For a production build of a web target we need to extract the CSS into
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185 | // CSS files.
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186 | LogicUtils.onlyIf(
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187 | env === 'production',
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188 | () =>
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189 | new ExtractTextPlugin({
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190 | filename: '[name].[contenthash:8].css',
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191 | allChunks: true,
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192 | }),
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193 | ),
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194 |
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195 | // This will inject the module.hot.accept code in the entry file for our
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196 | // development build.
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197 | LogicUtils.onlyIf(
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198 | env === 'development',
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199 | () =>
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200 | // eslint-disable-next-line global-require
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201 | new (require('./plugins/InjectHMRCodeForEntryModule.js'))({
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202 | entryFile: pkg.paths.packageEntryFile,
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203 | }),
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204 | ),
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205 | ]),
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206 |
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207 | module: {
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208 | rules: ArrayUtils.removeNil([
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209 | {
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210 | test: /\.js$/,
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211 | use: [
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212 | {
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213 | loader: require.resolve('cache-loader'),
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214 | options: {
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215 | cacheDirectory: pkg.paths.packageWebpackCache,
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216 | },
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217 | },
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218 | {
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219 | loader: require.resolve('babel-loader'),
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220 | options: generateBabelConfig(pkg),
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221 | },
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222 | ],
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223 | include: [pkg.paths.packageRoot],
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224 | exclude: [pkg.paths.packageNodeModules, pkg.paths.packageBuildOutput],
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225 | },
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226 |
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227 | {
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228 | test: /\.(jpg|jpeg|png|gif|ico|eot|svg|ttf|woff|woff2|otf|mp4|mp3|ogg|swf|webp)$/,
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229 | loader: require.resolve('url-loader'),
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230 | options: {
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231 | // We only emit files when building a web bundle, node bundles only
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232 | // need the file paths.
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233 | emitFile: true,
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234 | // Any files under this size will be "inlined" as a base64 encoding.
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235 | limit: 10000,
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236 | },
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237 | },
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238 |
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239 | // For development web targets we will use the style loader which will
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240 | // allow hot reloading of the CSS.
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241 | LogicUtils.onlyIf(env === 'development', () => ({
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242 | test: /\.css$/,
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243 | loader: [
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244 | require.resolve('style-loader'),
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245 | {
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246 | loader: require.resolve('css-loader'),
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247 | options: {
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248 | importLoaders: 1,
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249 | // Include sourcemaps for dev experience++.
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250 | sourceMap: true,
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251 | },
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252 | },
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253 | {
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254 | loader: require.resolve('postcss-loader'),
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255 | options: {
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256 | ident: 'postcss',
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257 | plugins: () => [
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258 | autoprefixer({
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259 | browsers: [
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260 | '>1%',
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261 | 'last 4 versions',
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262 | 'Firefox ESR',
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263 | 'not ie < 9',
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264 | ],
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265 | }),
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266 | ],
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267 | },
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268 | },
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269 | ],
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270 | include: [pkg.paths.packageRoot, pkg.paths.monoRepoRootNodeModules],
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271 | exclude: [pkg.paths.packageBuildOutput],
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272 | })),
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273 |
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274 | // For a production web target we use the ExtractTextPlugin which
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275 | // will extract our CSS into CSS files.
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276 | // Note: The ExtractTextPlugin needs to be registered within the
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277 | // plugins section too.
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278 | LogicUtils.onlyIf(env === 'production', () => ({
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279 | test: /\.css$/,
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280 | loader: ExtractTextPlugin.extract({
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281 | fallback: require.resolve('style-loader'),
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282 | use: [
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283 | {
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284 | loader: require.resolve('css-loader'),
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285 | options: {
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286 | importLoaders: 1,
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287 | },
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288 | },
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289 | {
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290 | loader: require.resolve('postcss-loader'),
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291 | options: {
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292 | ident: 'postcss',
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293 | plugins: () => [
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294 | autoprefixer({
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295 | browsers: [
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296 | '>1%',
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297 | 'last 4 versions',
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298 | 'Firefox ESR',
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299 | 'not ie < 9',
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300 | ],
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301 | }),
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302 | ],
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303 | },
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304 | },
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305 | ],
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306 | }),
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307 | include: [pkg.paths.packageRoot, pkg.paths.monoRepoRootNodeModules],
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308 | exclude: [pkg.paths.packageBuildOutput],
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309 | })),
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310 | ]),
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311 | },
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312 | }
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313 |
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314 | if (env === 'development' && !!devServerPort) {
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315 | webpackConfig.entry.index = [
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316 | `${path.dirname(
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317 | require.resolve('webpack-dev-server/package.json'),
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318 | )}/client?http://0.0.0.0:${devServerPort}`,
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319 | `${path.dirname(require.resolve('webpack/package.json'))}/hot/dev-server`,
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320 | ...webpackConfig.entry.index,
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321 | ]
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322 |
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323 | // For web target packages we rely on webpack-dev-server, but will provide
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324 | // the configuration here to make our configuration more centralised.
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325 | webpackConfig.devServer = {
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326 | host: '0.0.0.0',
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327 | port: devServerPort,
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328 | disableHostCheck: true,
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329 | contentBase: false,
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330 | headers: {
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331 | 'Access-Control-Allow-Origin': '*',
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332 | },
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333 | compress: true,
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334 | publicPath: webpackConfig.output.publicPath,
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335 | noInfo: true,
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336 | quiet: true,
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337 | historyApiFallback: true,
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338 | hot: true,
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339 | // Will show compile errors in browser.
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340 | overlay: true,
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341 | watchOptions: {
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342 | // Watching too many files can result in high CPU/memory usage.
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343 | // We will manually control reloads based on dependency changes.
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344 | ignored: /node_modules/,
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345 | // TODO: Allow watching of any dependencies that are Constellate packages.
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346 | },
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347 | }
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348 | }
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349 |
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350 | return webpackConfig
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351 | }
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