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11 | 'use strict';
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12 |
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13 | Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
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14 |
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15 | const require$$0 = require('path');
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16 | const process = require('process');
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17 | const rollup = require('./rollup.js');
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18 | const mergeOptions = require('./mergeOptions.js');
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19 | const require$$2 = require('os');
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20 | const index = require('./index.js');
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21 | require('perf_hooks');
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22 | require('crypto');
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23 | require('fs');
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24 | require('events');
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25 | require('util');
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26 | require('stream');
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27 |
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28 | class FileWatcher {
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29 | constructor(task, chokidarOptions) {
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30 | this.transformWatchers = new Map();
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31 | this.chokidarOptions = chokidarOptions;
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32 | this.task = task;
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33 | this.watcher = this.createWatcher(null);
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34 | }
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35 | close() {
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36 | this.watcher.close();
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37 | for (const watcher of this.transformWatchers.values()) {
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38 | watcher.close();
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39 | }
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40 | }
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41 | unwatch(id) {
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42 | this.watcher.unwatch(id);
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43 | const transformWatcher = this.transformWatchers.get(id);
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44 | if (transformWatcher) {
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45 | this.transformWatchers.delete(id);
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46 | transformWatcher.close();
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47 | }
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48 | }
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49 | watch(id, isTransformDependency) {
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50 | var _a;
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51 | if (isTransformDependency) {
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52 | const watcher = (_a = this.transformWatchers.get(id)) !== null && _a !== void 0 ? _a : this.createWatcher(id);
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53 | watcher.add(id);
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54 | this.transformWatchers.set(id, watcher);
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55 | }
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56 | else {
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57 | this.watcher.add(id);
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58 | }
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59 | }
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60 | createWatcher(transformWatcherId) {
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61 | const task = this.task;
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62 | const isLinux = require$$2.platform() === 'linux';
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63 | const isTransformDependency = transformWatcherId !== null;
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64 | const handleChange = (id, event) => {
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65 | const changedId = transformWatcherId || id;
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66 | if (isLinux) {
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67 |
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68 |
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69 |
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70 | watcher.unwatch(changedId);
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71 | watcher.add(changedId);
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72 | }
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73 | task.invalidate(changedId, { event, isTransformDependency });
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74 | };
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75 | const watcher = index.chokidar
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76 | .watch([], this.chokidarOptions)
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77 | .on('add', id => handleChange(id, 'create'))
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78 | .on('change', id => handleChange(id, 'update'))
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79 | .on('unlink', id => handleChange(id, 'delete'));
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80 | return watcher;
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81 | }
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82 | }
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83 |
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84 | const eventsRewrites = {
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85 | create: {
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86 | create: 'buggy',
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87 | delete: null,
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88 | update: 'create'
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89 | },
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90 | delete: {
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91 | create: 'update',
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92 | delete: 'buggy',
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93 | update: 'buggy'
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94 | },
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95 | update: {
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96 | create: 'buggy',
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97 | delete: 'delete',
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98 | update: 'update'
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99 | }
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100 | };
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101 | class Watcher {
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102 | constructor(configs, emitter) {
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103 | this.buildDelay = 0;
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104 | this.buildTimeout = null;
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105 | this.invalidatedIds = new Map();
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106 | this.rerun = false;
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107 | this.running = true;
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108 | this.emitter = emitter;
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109 | emitter.close = this.close.bind(this);
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110 | this.tasks = configs.map(config => new Task(this, config));
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111 | this.buildDelay = configs.reduce((buildDelay, { watch }) => watch && typeof watch.buildDelay === 'number'
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112 | ? Math.max(buildDelay, watch.buildDelay)
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113 | : buildDelay, this.buildDelay);
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114 | process.nextTick(() => this.run());
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115 | }
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116 | close() {
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117 | if (this.buildTimeout)
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118 | clearTimeout(this.buildTimeout);
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119 | for (const task of this.tasks) {
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120 | task.close();
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121 | }
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122 | this.emitter.emit('close');
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123 | this.emitter.removeAllListeners();
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124 | }
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125 | invalidate(file) {
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126 | if (file) {
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127 | const prevEvent = this.invalidatedIds.get(file.id);
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128 | const event = prevEvent ? eventsRewrites[prevEvent][file.event] : file.event;
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129 | if (event === 'buggy') {
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130 |
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131 | this.invalidatedIds.set(file.id, file.event);
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132 | }
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133 | else if (event === null) {
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134 | this.invalidatedIds.delete(file.id);
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135 | }
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136 | else {
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137 | this.invalidatedIds.set(file.id, event);
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138 | }
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139 | }
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140 | if (this.running) {
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141 | this.rerun = true;
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142 | return;
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143 | }
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144 | if (this.buildTimeout)
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145 | clearTimeout(this.buildTimeout);
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146 | this.buildTimeout = setTimeout(() => {
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147 | this.buildTimeout = null;
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148 | for (const [id, event] of this.invalidatedIds) {
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149 | this.emitter.emit('change', id, { event });
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150 | }
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151 | this.invalidatedIds.clear();
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152 | this.emitter.emit('restart');
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153 | this.run();
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154 | }, this.buildDelay);
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155 | }
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156 | async run() {
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157 | this.running = true;
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158 | this.emitter.emit('event', {
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159 | code: 'START'
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160 | });
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161 | for (const task of this.tasks) {
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162 | await task.run();
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163 | }
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164 | this.running = false;
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165 | this.emitter.emit('event', {
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166 | code: 'END'
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167 | });
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168 | if (this.rerun) {
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169 | this.rerun = false;
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170 | this.invalidate();
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171 | }
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172 | }
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173 | }
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174 | class Task {
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175 | constructor(watcher, config) {
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176 | this.cache = { modules: [] };
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177 | this.watchFiles = [];
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178 | this.closed = false;
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179 | this.invalidated = true;
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180 | this.watched = new Set();
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181 | this.watcher = watcher;
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182 | this.skipWrite = Boolean(config.watch && config.watch.skipWrite);
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183 | this.options = mergeOptions.mergeOptions(config);
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184 | this.outputs = this.options.output;
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185 | this.outputFiles = this.outputs.map(output => {
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186 | if (output.file || output.dir)
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187 | return require$$0.resolve(output.file || output.dir);
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188 | return undefined;
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189 | });
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190 | const watchOptions = this.options.watch || {};
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191 | this.filter = rollup.createFilter(watchOptions.include, watchOptions.exclude);
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192 | this.fileWatcher = new FileWatcher(this, {
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193 | ...watchOptions.chokidar,
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194 | disableGlobbing: true,
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195 | ignoreInitial: true
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196 | });
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197 | }
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198 | close() {
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199 | this.closed = true;
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200 | this.fileWatcher.close();
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201 | }
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202 | invalidate(id, details) {
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203 | this.invalidated = true;
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204 | if (details.isTransformDependency) {
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205 | for (const module of this.cache.modules) {
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206 | if (!module.transformDependencies.includes(id))
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207 | continue;
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208 |
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209 | module.originalCode = null;
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210 | }
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211 | }
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212 | this.watcher.invalidate({ event: details.event, id });
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213 | }
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214 | async run() {
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215 | if (!this.invalidated)
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216 | return;
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217 | this.invalidated = false;
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218 | const options = {
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219 | ...this.options,
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220 | cache: this.cache
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221 | };
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222 | const start = Date.now();
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223 | this.watcher.emitter.emit('event', {
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224 | code: 'BUNDLE_START',
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225 | input: this.options.input,
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226 | output: this.outputFiles
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227 | });
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228 | let result = null;
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229 | try {
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230 | result = await rollup.rollupInternal(options, this.watcher.emitter);
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231 | if (this.closed) {
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232 | return;
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233 | }
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234 | this.updateWatchedFiles(result);
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235 | this.skipWrite || (await Promise.all(this.outputs.map(output => result.write(output))));
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236 | this.watcher.emitter.emit('event', {
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237 | code: 'BUNDLE_END',
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238 | duration: Date.now() - start,
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239 | input: this.options.input,
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240 | output: this.outputFiles,
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241 | result
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242 | });
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243 | }
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244 | catch (error) {
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245 | if (!this.closed) {
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246 | if (Array.isArray(error.watchFiles)) {
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247 | for (const id of error.watchFiles) {
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248 | this.watchFile(id);
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249 | }
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250 | }
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251 | if (error.id) {
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252 | this.cache.modules = this.cache.modules.filter(module => module.id !== error.id);
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253 | }
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254 | }
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255 | this.watcher.emitter.emit('event', {
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256 | code: 'ERROR',
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257 | error,
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258 | result
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259 | });
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260 | }
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261 | }
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262 | updateWatchedFiles(result) {
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263 | const previouslyWatched = this.watched;
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264 | this.watched = new Set();
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265 | this.watchFiles = result.watchFiles;
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266 | this.cache = result.cache;
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267 | for (const id of this.watchFiles) {
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268 | this.watchFile(id);
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269 | }
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270 | for (const module of this.cache.modules) {
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271 | for (const depId of module.transformDependencies) {
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272 | this.watchFile(depId, true);
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273 | }
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274 | }
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275 | for (const id of previouslyWatched) {
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276 | if (!this.watched.has(id)) {
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277 | this.fileWatcher.unwatch(id);
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278 | }
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279 | }
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280 | }
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281 | watchFile(id, isTransformDependency = false) {
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282 | if (!this.filter(id))
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283 | return;
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284 | this.watched.add(id);
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285 | if (this.outputFiles.some(file => file === id)) {
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286 | throw new Error('Cannot import the generated bundle');
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287 | }
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288 |
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289 |
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290 | this.fileWatcher.watch(id, isTransformDependency);
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291 | }
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292 | }
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293 |
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294 | exports.Task = Task;
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295 | exports.Watcher = Watcher;
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296 |
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