1 | "use strict";
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2 |
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3 | Object.defineProperty(exports, "__esModule", {
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4 | value: true
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5 | });
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6 | exports.default = void 0;
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7 |
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8 | var _os = _interopRequireDefault(require("os"));
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9 |
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10 | var _schemaUtils = require("schema-utils");
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11 |
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12 | var _serializeJavascript = _interopRequireDefault(require("serialize-javascript"));
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13 |
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14 | var _pLimit = _interopRequireDefault(require("p-limit"));
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15 |
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16 | var _jestWorker = require("jest-worker");
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17 |
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18 | var _options = _interopRequireDefault(require("./options.json"));
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19 |
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20 | var _utils = require("./utils");
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21 |
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22 | var _minify = require("./minify");
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23 |
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24 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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25 |
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26 | class HtmlMinimizerPlugin {
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27 | constructor(options = {}) {
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28 | (0, _schemaUtils.validate)(_options.default, options, {
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29 | name: "Html Minimizer Plugin",
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30 | baseDataPath: "options"
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31 | });
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32 | const {
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33 | minify = _utils.htmlMinifierTerser,
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34 | minimizerOptions,
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35 | test = /\.html(\?.*)?$/i,
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36 | parallel = true,
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37 | include,
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38 | exclude
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39 | } = options;
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40 | this.options = {
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41 | test,
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42 | parallel,
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43 | include,
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44 | exclude,
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45 | minify,
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46 | minimizerOptions
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47 | };
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48 | }
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49 |
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50 | static buildWarning(warning, file) {
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51 | const builtWarning = new Error(warning.message ? warning.message : warning.toString());
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52 | builtWarning.name = "Warning";
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53 | builtWarning.hideStack = true;
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54 | builtWarning.file = file;
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55 | return builtWarning;
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56 | }
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57 |
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58 | static buildError(error, file) {
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59 | let builtError;
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60 |
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61 | if (typeof error === "string") {
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62 |
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63 | builtError = new Error(`${file} from Html Minimizer plugin\n${error}`);
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64 | builtError.file = file;
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65 | return builtError;
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66 | }
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67 |
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68 | if (error.stack) {
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69 |
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70 | builtError = new Error(`${file} from Html Minimizer plugin\n${typeof error.message !== "undefined" ? error.message : ""}\n${error.stack}`);
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71 | builtError.file = file;
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72 | return builtError;
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73 | }
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74 |
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75 | builtError = new Error(`${file} from Html Minimizer plugin\n${error.message}`);
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76 | builtError.file = file;
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77 | return builtError;
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78 | }
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79 |
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80 | static getAvailableNumberOfCores(parallel) {
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81 |
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82 |
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83 | const cpus = _os.default.cpus() || {
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84 | length: 1
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85 | };
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86 | return parallel === true ? cpus.length - 1 : Math.min(Number(parallel) || 0, cpus.length - 1);
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87 | }
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88 |
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89 | async optimize(compiler, compilation, assets, optimizeOptions) {
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90 | const cache = compilation.getCache("HtmlMinimizerWebpackPlugin");
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91 | let numberOfAssetsForMinify = 0;
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92 | const assetsForMinify = await Promise.all(Object.keys(assets).filter(name => {
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93 | const {
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94 | info
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95 | } = compilation.getAsset(name);
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96 |
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97 | if (info.minimized) {
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98 | return false;
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99 | }
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100 |
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101 | if (!compiler.webpack.ModuleFilenameHelpers.matchObject.bind(
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102 | undefined, this.options)(name)) {
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103 | return false;
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104 | }
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105 |
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106 | return true;
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107 | }).map(async name => {
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108 | const {
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109 | info,
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110 | source
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111 | } = compilation.getAsset(name);
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112 | const eTag = cache.getLazyHashedEtag(source);
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113 | const cacheItem = cache.getItemCache(name, eTag);
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114 | const output = await cacheItem.getPromise();
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115 |
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116 | if (!output) {
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117 | numberOfAssetsForMinify += 1;
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118 | }
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119 |
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120 | return {
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121 | name,
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122 | info,
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123 | inputSource: source,
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124 | output,
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125 | cacheItem
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126 | };
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127 | }));
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128 | let getWorker;
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129 | let initializedWorker;
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130 | let numberOfWorkers;
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131 |
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132 | if (optimizeOptions.availableNumberOfCores > 0) {
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133 |
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134 | numberOfWorkers = Math.min(numberOfAssetsForMinify, optimizeOptions.availableNumberOfCores);
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135 |
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136 | getWorker = () => {
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137 | if (initializedWorker) {
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138 | return initializedWorker;
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139 | }
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140 |
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141 | initializedWorker = new _jestWorker.Worker(require.resolve("./minify"), {
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142 | numWorkers: numberOfWorkers,
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143 | enableWorkerThreads: true
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144 | });
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145 |
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146 | const workerStdout = initializedWorker.getStdout();
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147 |
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148 | if (workerStdout) {
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149 | workerStdout.on("data", chunk => process.stdout.write(chunk));
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150 | }
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151 |
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152 | const workerStderr = initializedWorker.getStderr();
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153 |
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154 | if (workerStderr) {
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155 | workerStderr.on("data", chunk => process.stderr.write(chunk));
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156 | }
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157 |
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158 | return initializedWorker;
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159 | };
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160 | }
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161 |
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162 | const limit = (0, _pLimit.default)(getWorker && numberOfAssetsForMinify > 0 ? numberOfWorkers : Infinity);
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163 | const {
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164 | RawSource
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165 | } = compiler.webpack.sources;
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166 | const scheduledTasks = [];
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167 |
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168 | for (const asset of assetsForMinify) {
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169 | scheduledTasks.push(limit(async () => {
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170 | const {
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171 | name,
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172 | inputSource,
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173 | cacheItem
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174 | } = asset;
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175 | let {
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176 | output
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177 | } = asset;
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178 | let input;
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179 | const sourceFromInputSource = inputSource.source();
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180 |
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181 | if (!output) {
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182 | input = sourceFromInputSource;
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183 |
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184 | if (Buffer.isBuffer(input)) {
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185 | input = input.toString();
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186 | }
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187 |
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188 | const options = {
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189 | name,
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190 | input,
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191 | minimizerOptions: this.options.minimizerOptions,
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192 | minify: this.options.minify
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193 | };
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194 |
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195 | try {
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196 | output = await (getWorker ? getWorker().transform((0, _serializeJavascript.default)(options)) : (0, _minify.minify)(options));
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197 | } catch (error) {
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198 | compilation.errors.push(HtmlMinimizerPlugin.buildError(error, name));
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199 | return;
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200 | }
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201 |
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202 | output.source = new RawSource(output.code);
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203 | await cacheItem.storePromise({
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204 | source: output.source,
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205 | errors: output.errors,
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206 | warnings: output.warnings
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207 | });
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208 | }
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209 |
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210 | const newInfo = {
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211 | minimized: true
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212 | };
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213 |
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214 | if (output.warnings && output.warnings.length > 0) {
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215 | for (const warning of output.warnings) {
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216 | compilation.warnings.push(HtmlMinimizerPlugin.buildWarning(warning, name));
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217 | }
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218 | }
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219 |
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220 | if (output.errors && output.errors.length > 0) {
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221 | for (const error of output.errors) {
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222 | compilation.errors.push(HtmlMinimizerPlugin.buildError(error, name));
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223 | }
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224 | }
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225 |
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226 | compilation.updateAsset(name, output.source, newInfo);
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227 | }));
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228 | }
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229 |
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230 | await Promise.all(scheduledTasks);
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231 |
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232 | if (initializedWorker) {
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233 | await initializedWorker.end();
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234 | }
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235 | }
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236 |
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237 | apply(compiler) {
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238 | const pluginName = this.constructor.name;
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239 | const availableNumberOfCores = HtmlMinimizerPlugin.getAvailableNumberOfCores(this.options.parallel);
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240 | compiler.hooks.compilation.tap(pluginName, compilation => {
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241 | compilation.hooks.processAssets.tapPromise({
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242 | name: pluginName,
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243 | stage: compiler.webpack.Compilation.PROCESS_ASSETS_STAGE_OPTIMIZE_SIZE,
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244 | additionalAssets: true
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245 | }, assets => this.optimize(compiler, compilation, assets, {
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246 | availableNumberOfCores
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247 | }));
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248 | compilation.hooks.statsPrinter.tap(pluginName, stats => {
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249 | stats.hooks.print.for("asset.info.minimized").tap("html-minimizer-webpack-plugin", (minimized, {
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250 | green,
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251 | formatFlag
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252 | }) =>
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253 | minimized ? green(formatFlag("minimized")) : undefined);
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254 | });
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255 | });
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256 | }
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257 |
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258 | }
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259 |
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260 | HtmlMinimizerPlugin.htmlMinifierTerser = _utils.htmlMinifierTerser;
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261 | var _default = HtmlMinimizerPlugin;
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262 | exports.default = _default; |
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