1 | // @remove-on-eject-begin
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2 | /**
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3 | * Copyright (c) 2015-present, Facebook, Inc.
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4 | * All rights reserved.
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5 | *
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6 | * This source code is licensed under the BSD-style license found in the
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7 | * LICENSE file in the root directory of this source tree. An additional grant
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8 | * of patent rights can be found in the PATENTS file in the same directory.
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9 | */
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10 | // @remove-on-eject-end
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11 | ;
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12 |
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13 | const autoprefixer = require('autoprefixer');
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14 | const webpack = require('webpack');
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15 | const HtmlWebpackPlugin = require('html-webpack-plugin');
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16 | const ExtractTextPlugin = require('extract-text-webpack-plugin');
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17 | const ManifestPlugin = require('webpack-manifest-plugin');
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18 | const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
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19 | const paths = require('./paths');
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20 | const getClientEnvironment = require('./env');
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21 |
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22 | // Webpack uses `publicPath` to determine where the app is being served from.
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23 | // It requires a trailing slash, or the file assets will get an incorrect path.
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24 | const publicPath = paths.servedPath;
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25 | // Some apps do not use client-side routing with pushState.
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26 | // For these, "homepage" can be set to "." to enable relative asset paths.
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27 | const shouldUseRelativeAssetPaths = publicPath === './';
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28 | // `publicUrl` is just like `publicPath`, but we will provide it to our app
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29 | // as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
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30 | // Omit trailing slash as %PUBLIC_URL%/xyz looks better than %PUBLIC_URL%xyz.
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31 | const publicUrl = publicPath.slice(0, -1);
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32 | // Get environment variables to inject into our app.
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33 | const env = getClientEnvironment(publicUrl);
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34 |
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35 | // Assert this just to be safe.
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36 | // Development builds of React are slow and not intended for production.
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37 | if (env.stringified['process.env'].NODE_ENV !== '"production"') {
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38 | throw new Error('Production builds must have NODE_ENV=production.');
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39 | }
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40 |
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41 | // Note: defined here because it will be used more than once.
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42 | const cssFilename = 'static/css/[name].[contenthash:8].css';
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43 |
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44 | // ExtractTextPlugin expects the build output to be flat.
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45 | // (See https://github.com/webpack-contrib/extract-text-webpack-plugin/issues/27)
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46 | // However, our output is structured with css, js and media folders.
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47 | // To have this structure working with relative paths, we have to use custom options.
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48 | const extractTextPluginOptions = shouldUseRelativeAssetPaths
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49 | ? // Making sure that the publicPath goes back to to build folder.
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50 | {publicPath: Array(cssFilename.split('/').length).join('../')}
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51 | : {};
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52 |
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53 | // This is the production configuration.
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54 | // It compiles slowly and is focused on producing a fast and minimal bundle.
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55 | // The development configuration is different and lives in a separate file.
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56 | module.exports = {
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57 | target: 'electron-renderer',
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58 |
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59 | // Don't attempt to continue if there are any errors.
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60 | bail: true,
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61 | // We generate sourcemaps in production. This is slow but gives good results.
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62 | // You can exclude the *.map files from the build during deployment.
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63 | devtool: 'source-map',
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64 | // In production, we only want to load the polyfills and the app code.
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65 | entry: [require.resolve('./polyfills'), paths.appIndexJs],
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66 | output: {
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67 | // The build folder.
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68 | path: paths.appBuild,
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69 | // Generated JS file names (with nested folders).
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70 | // There will be one main bundle, and one file per asynchronous chunk.
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71 | // We don't currently advertise code splitting but Webpack supports it.
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72 | filename: 'static/js/[name].[chunkhash:8].js',
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73 | chunkFilename: 'static/js/[name].[chunkhash:8].chunk.js',
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74 | // We inferred the "public path" (such as / or /my-project) from homepage.
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75 | publicPath: publicPath,
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76 | },
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77 | resolve: {
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78 | // This allows you to set a fallback for where Webpack should look for modules.
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79 | // We read `NODE_PATH` environment variable in `paths.js` and pass paths here.
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80 | // We placed these paths second because we want `node_modules` to "win"
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81 | // if there are any conflicts. This matches Node resolution mechanism.
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82 | // https://github.com/facebookincubator/create-react-app/issues/253
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83 | modules: ['node_modules', paths.appNodeModules].concat(paths.nodePaths),
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84 | // These are the reasonable defaults supported by the Node ecosystem.
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85 | // We also include JSX as a common component filename extension to support
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86 | // some tools, although we do not recommend using it, see:
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87 | // https://github.com/facebookincubator/create-react-app/issues/290
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88 | extensions: ['.js', '.json', '.jsx'],
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89 | alias: {
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90 | // Support React Native Web
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91 | // https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
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92 | 'react-native': 'react-native-web',
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93 | },
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94 | },
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95 | // @remove-on-eject-begin
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96 | // Resolve loaders (webpack plugins for CSS, images, transpilation) from the
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97 | // directory of `react-scripts` itself rather than the project directory.
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98 | resolveLoader: {
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99 | modules: [
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100 | paths.ownNodeModules,
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101 | // Lerna hoists everything, so we need to look in our app directory
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102 | paths.appNodeModules,
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103 | ],
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104 | },
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105 | // @remove-on-eject-end
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106 | module: {
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107 | rules: [
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108 | // Disable require.ensure as it's not a standard language feature.
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109 | {parser: {requireEnsure: false}},
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110 | // First, run the linter.
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111 | // It's important to do this before Babel processes the JS.
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112 | {
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113 | test: /\.(js|jsx)$/,
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114 | enforce: 'pre',
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115 | use: [
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116 | {
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117 | // @remove-on-eject-begin
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118 | // Point ESLint to our predefined config.
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119 | options: {
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120 | // TODO: consider separate config for production,
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121 | // e.g. to enable no-console and no-debugger only in production.
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122 | baseConfig: {
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123 | extends: ['react-app'],
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124 | },
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125 | useEslintrc: false,
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126 | },
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127 | // @remove-on-eject-end
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128 | loader: 'eslint-loader',
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129 | },
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130 | ],
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131 | include: paths.appSrc,
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132 | },
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133 | // ** ADDING/UPDATING LOADERS **
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134 | // The "url" loader handles all assets unless explicitly excluded.
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135 | // The `exclude` list *must* be updated with every change to loader extensions.
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136 | // When adding a new loader, you must add its `test`
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137 | // as a new entry in the `exclude` list in the "url" loader.
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138 |
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139 | // "file" loader makes sure those assets end up in the `build` folder.
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140 | // When you `import` an asset, you get its filename.
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141 | {
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142 | exclude: [
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143 | /\.html$/,
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144 | /\.(js|jsx)$/,
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145 | /\.css$/,
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146 | /\.json$/,
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147 | /\.bmp$/,
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148 | /\.gif$/,
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149 | /\.jpe?g$/,
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150 | /\.png$/,
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151 | ],
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152 | loader: 'file-loader',
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153 | options: {
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154 | name: 'static/media/[name].[hash:8].[ext]',
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155 | },
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156 | },
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157 | // "url" loader works just like "file" loader but it also embeds
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158 | // assets smaller than specified size as data URLs to avoid requests.
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159 | {
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160 | test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
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161 | loader: 'url-loader',
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162 | options: {
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163 | limit: 10000,
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164 | name: 'static/media/[name].[hash:8].[ext]',
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165 | },
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166 | },
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167 | // Process JS with Babel.
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168 | {
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169 | test: /\.(js|jsx)$/,
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170 | include: paths.appSrc,
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171 | loader: 'babel-loader',
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172 | // @remove-on-eject-begin
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173 | options: {
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174 | babelrc: false,
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175 | presets: [require.resolve('babel-preset-react-app')],
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176 | },
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177 | // @remove-on-eject-end
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178 | },
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179 | // The notation here is somewhat confusing.
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180 | // "postcss" loader applies autoprefixer to our CSS.
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181 | // "css" loader resolves paths in CSS and adds assets as dependencies.
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182 | // "style" loader normally turns CSS into JS modules injecting <style>,
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183 | // but unlike in development configuration, we do something different.
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184 | // `ExtractTextPlugin` first applies the "postcss" and "css" loaders
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185 | // (second argument), then grabs the result CSS and puts it into a
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186 | // separate file in our build process. This way we actually ship
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187 | // a single CSS file in production instead of JS code injecting <style>
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188 | // tags. If you use code splitting, however, any async bundles will still
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189 | // use the "style" loader inside the async code so CSS from them won't be
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190 | // in the main CSS file.
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191 | {
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192 | test: /\.css$/,
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193 | loader: ExtractTextPlugin.extract(
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194 | Object.assign(
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195 | {
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196 | fallback: 'style-loader',
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197 | use: [
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198 | {
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199 | loader: 'css-loader',
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200 | options: {
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201 | importLoaders: 1,
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202 | },
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203 | },
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204 | {
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205 | loader: 'postcss-loader',
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206 | options: {
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207 | ident: 'postcss', // https://webpack.js.org/guides/migrating/#complex-options
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208 | plugins: () => [
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209 | autoprefixer({
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210 | browsers: [
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211 | '>1%',
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212 | 'last 4 versions',
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213 | 'Firefox ESR',
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214 | 'not ie < 9', // React doesn't support IE8 anyway
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215 | ],
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216 | }),
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217 | ],
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218 | },
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219 | },
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220 | ],
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221 | },
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222 | extractTextPluginOptions,
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223 | ),
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224 | ),
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225 | // Note: this won't work without `new ExtractTextPlugin()` in `plugins`.
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226 | },
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227 | // ** STOP ** Are you adding a new loader?
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228 | // Remember to add the new extension(s) to the "url" loader exclusion list.
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229 | ],
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230 | },
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231 | plugins: [
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232 | // Makes some environment variables available in index.html.
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233 | // The public URL is available as %PUBLIC_URL% in index.html, e.g.:
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234 | // <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
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235 | // In production, it will be an empty string unless you specify "homepage"
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236 | // in `package.json`, in which case it will be the pathname of that URL.
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237 | new InterpolateHtmlPlugin(env.raw),
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238 | // Generates an `index.html` file with the <script> injected.
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239 | new HtmlWebpackPlugin({
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240 | inject: true,
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241 | template: paths.appHtml,
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242 | minify: {
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243 | removeComments: true,
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244 | collapseWhitespace: true,
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245 | removeRedundantAttributes: true,
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246 | useShortDoctype: true,
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247 | removeEmptyAttributes: true,
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248 | removeStyleLinkTypeAttributes: true,
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249 | keepClosingSlash: true,
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250 | minifyJS: true,
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251 | minifyCSS: true,
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252 | minifyURLs: true,
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253 | },
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254 | }),
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255 | // Makes some environment variables available to the JS code, for example:
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256 | // if (process.env.NODE_ENV === 'production') { ... }. See `./env.js`.
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257 | // It is absolutely essential that NODE_ENV was set to production here.
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258 | // Otherwise React will be compiled in the very slow development mode.
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259 | new webpack.DefinePlugin(env.stringified),
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260 | // Minify the code.
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261 | new webpack.optimize.UglifyJsPlugin({
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262 | compress: {
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263 | screw_ie8: true, // React doesn't support IE8
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264 | warnings: false,
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265 | },
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266 | mangle: {
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267 | screw_ie8: true,
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268 | },
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269 | output: {
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270 | comments: false,
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271 | screw_ie8: true,
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272 | },
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273 | sourceMap: true,
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274 | }),
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275 | // Note: this won't work without ExtractTextPlugin.extract(..) in `loaders`.
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276 | new ExtractTextPlugin({
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277 | filename: cssFilename,
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278 | }),
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279 | // Generate a manifest file which contains a mapping of all asset filenames
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280 | // to their corresponding output file so that tools can pick it up without
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281 | // having to parse `index.html`.
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282 | new ManifestPlugin({
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283 | fileName: 'asset-manifest.json',
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284 | }),
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285 | ],
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286 | // Some libraries import Node modules but don't use them in the browser.
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287 | // Tell Webpack to provide empty mocks for them so importing them works.
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288 | node: {
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289 | fs: 'empty',
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290 | net: 'empty',
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291 | tls: 'empty',
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292 | },
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293 | };
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