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11 | 'use strict';
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12 |
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13 | const path = require('path');
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14 | const rollup = require('./rollup.js');
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15 | const mergeOptions = require('./mergeOptions.js');
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16 | const require$$2 = require('os');
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17 | const index = require('./index.js');
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18 | require('crypto');
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19 | require('fs');
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20 | require('events');
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21 | require('util');
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22 | require('stream');
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23 |
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24 | function _interopNamespaceDefault(e) {
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25 | const n = Object.create(null);
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26 | if (e) {
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27 | for (const k in e) {
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28 | n[k] = e[k];
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29 | }
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30 | }
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31 | n.default = e;
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32 | return n;
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33 | }
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34 |
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35 | const path__namespace = _interopNamespaceDefault(path);
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36 |
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37 | class FileWatcher {
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38 | constructor(task, chokidarOptions) {
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39 | this.transformWatchers = new Map();
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40 | this.chokidarOptions = chokidarOptions;
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41 | this.task = task;
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42 | this.watcher = this.createWatcher(null);
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43 | }
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44 | close() {
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45 | this.watcher.close();
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46 | for (const watcher of this.transformWatchers.values()) {
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47 | watcher.close();
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48 | }
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49 | }
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50 | unwatch(id) {
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51 | this.watcher.unwatch(id);
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52 | const transformWatcher = this.transformWatchers.get(id);
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53 | if (transformWatcher) {
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54 | this.transformWatchers.delete(id);
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55 | transformWatcher.close();
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56 | }
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57 | }
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58 | watch(id, isTransformDependency) {
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59 | if (isTransformDependency) {
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60 | const watcher = this.transformWatchers.get(id) || this.createWatcher(id);
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61 | watcher.add(id);
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62 | this.transformWatchers.set(id, watcher);
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63 | }
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64 | else {
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65 | this.watcher.add(id);
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66 | }
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67 | }
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68 | createWatcher(transformWatcherId) {
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69 | const task = this.task;
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70 | const isLinux = require$$2.platform() === 'linux';
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71 | const isTransformDependency = transformWatcherId !== null;
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72 | const handleChange = (id, event) => {
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73 | const changedId = transformWatcherId || id;
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74 | if (isLinux) {
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75 |
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76 |
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77 |
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78 | watcher.unwatch(changedId);
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79 | watcher.add(changedId);
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80 | }
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81 | task.invalidate(changedId, { event, isTransformDependency });
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82 | };
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83 | const watcher = index.chokidar
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84 | .watch([], this.chokidarOptions)
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85 | .on('add', id => handleChange(id, 'create'))
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86 | .on('change', id => handleChange(id, 'update'))
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87 | .on('unlink', id => handleChange(id, 'delete'));
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88 | return watcher;
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89 | }
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90 | }
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91 |
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92 | const eventsRewrites = {
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93 | create: {
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94 | create: 'buggy',
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95 | delete: null,
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96 | update: 'create'
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97 | },
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98 | delete: {
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99 | create: 'update',
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100 | delete: 'buggy',
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101 | update: 'buggy'
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102 | },
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103 | update: {
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104 | create: 'buggy',
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105 | delete: 'delete',
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106 | update: 'update'
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107 | }
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108 | };
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109 | class Watcher {
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110 | constructor(configs, emitter) {
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111 | this.buildDelay = 0;
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112 | this.buildTimeout = null;
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113 | this.invalidatedIds = new Map();
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114 | this.rerun = false;
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115 | this.running = true;
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116 | this.emitter = emitter;
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117 | emitter.close = this.close.bind(this);
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118 | this.tasks = configs.map(config => new Task(this, config));
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119 | this.buildDelay = configs.reduce((buildDelay, { watch }) => watch && typeof watch.buildDelay === 'number'
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120 | ? Math.max(buildDelay, watch.buildDelay)
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121 | : buildDelay, this.buildDelay);
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122 | process.nextTick(() => this.run());
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123 | }
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124 | close() {
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125 | if (this.buildTimeout)
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126 | clearTimeout(this.buildTimeout);
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127 | for (const task of this.tasks) {
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128 | task.close();
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129 | }
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130 | this.emitter.emit('close');
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131 | this.emitter.removeAllListeners();
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132 | }
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133 | invalidate(file) {
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134 | if (file) {
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135 | const prevEvent = this.invalidatedIds.get(file.id);
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136 | const event = prevEvent ? eventsRewrites[prevEvent][file.event] : file.event;
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137 | if (event === 'buggy') {
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138 |
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139 | this.invalidatedIds.set(file.id, file.event);
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140 | }
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141 | else if (event === null) {
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142 | this.invalidatedIds.delete(file.id);
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143 | }
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144 | else {
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145 | this.invalidatedIds.set(file.id, event);
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146 | }
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147 | }
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148 | if (this.running) {
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149 | this.rerun = true;
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150 | return;
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151 | }
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152 | if (this.buildTimeout)
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153 | clearTimeout(this.buildTimeout);
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154 | this.buildTimeout = setTimeout(() => {
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155 | this.buildTimeout = null;
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156 | for (const [id, event] of this.invalidatedIds.entries()) {
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157 | this.emitter.emit('change', id, { event });
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158 | }
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159 | this.invalidatedIds.clear();
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160 | this.emitter.emit('restart');
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161 | this.run();
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162 | }, this.buildDelay);
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163 | }
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164 | async run() {
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165 | this.running = true;
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166 | this.emitter.emit('event', {
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167 | code: 'START'
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168 | });
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169 | for (const task of this.tasks) {
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170 | await task.run();
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171 | }
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172 | this.running = false;
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173 | this.emitter.emit('event', {
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174 | code: 'END'
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175 | });
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176 | if (this.rerun) {
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177 | this.rerun = false;
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178 | this.invalidate();
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179 | }
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180 | }
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181 | }
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182 | class Task {
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183 | constructor(watcher, config) {
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184 | this.cache = { modules: [] };
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185 | this.watchFiles = [];
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186 | this.closed = false;
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187 | this.invalidated = true;
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188 | this.watched = new Set();
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189 | this.watcher = watcher;
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190 | this.skipWrite = Boolean(config.watch && config.watch.skipWrite);
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191 | this.options = mergeOptions.mergeOptions(config);
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192 | this.outputs = this.options.output;
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193 | this.outputFiles = this.outputs.map(output => {
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194 | if (output.file || output.dir)
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195 | return path__namespace.resolve(output.file || output.dir);
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196 | return undefined;
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197 | });
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198 | const watchOptions = this.options.watch || {};
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199 | this.filter = rollup.createFilter(watchOptions.include, watchOptions.exclude);
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200 | this.fileWatcher = new FileWatcher(this, {
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201 | ...watchOptions.chokidar,
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202 | disableGlobbing: true,
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203 | ignoreInitial: true
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204 | });
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205 | }
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206 | close() {
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207 | this.closed = true;
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208 | this.fileWatcher.close();
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209 | }
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210 | invalidate(id, details) {
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211 | this.invalidated = true;
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212 | if (details.isTransformDependency) {
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213 | for (const module of this.cache.modules) {
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214 | if (module.transformDependencies.indexOf(id) === -1)
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215 | continue;
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216 |
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217 | module.originalCode = null;
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218 | }
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219 | }
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220 | this.watcher.invalidate({ event: details.event, id });
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221 | }
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222 | async run() {
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223 | if (!this.invalidated)
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224 | return;
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225 | this.invalidated = false;
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226 | const options = {
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227 | ...this.options,
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228 | cache: this.cache
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229 | };
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230 | const start = Date.now();
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231 | this.watcher.emitter.emit('event', {
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232 | code: 'BUNDLE_START',
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233 | input: this.options.input,
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234 | output: this.outputFiles
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235 | });
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236 | let result = null;
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237 | try {
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238 | result = await rollup.rollupInternal(options, this.watcher.emitter);
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239 | if (this.closed) {
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240 | return;
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241 | }
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242 | this.updateWatchedFiles(result);
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243 | this.skipWrite || (await Promise.all(this.outputs.map(output => result.write(output))));
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244 | this.watcher.emitter.emit('event', {
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245 | code: 'BUNDLE_END',
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246 | duration: Date.now() - start,
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247 | input: this.options.input,
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248 | output: this.outputFiles,
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249 | result
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250 | });
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251 | }
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252 | catch (error) {
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253 | if (!this.closed) {
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254 | if (Array.isArray(error.watchFiles)) {
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255 | for (const id of error.watchFiles) {
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256 | this.watchFile(id);
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257 | }
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258 | }
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259 | if (error.id) {
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260 | this.cache.modules = this.cache.modules.filter(module => module.id !== error.id);
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261 | }
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262 | }
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263 | this.watcher.emitter.emit('event', {
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264 | code: 'ERROR',
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265 | error,
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266 | result
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267 | });
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268 | }
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269 | }
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270 | updateWatchedFiles(result) {
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271 | const previouslyWatched = this.watched;
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272 | this.watched = new Set();
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273 | this.watchFiles = result.watchFiles;
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274 | this.cache = result.cache;
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275 | for (const id of this.watchFiles) {
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276 | this.watchFile(id);
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277 | }
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278 | for (const module of this.cache.modules) {
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279 | for (const depId of module.transformDependencies) {
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280 | this.watchFile(depId, true);
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281 | }
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282 | }
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283 | for (const id of previouslyWatched) {
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284 | if (!this.watched.has(id)) {
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285 | this.fileWatcher.unwatch(id);
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286 | }
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287 | }
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288 | }
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289 | watchFile(id, isTransformDependency = false) {
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290 | if (!this.filter(id))
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291 | return;
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292 | this.watched.add(id);
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293 | if (this.outputFiles.some(file => file === id)) {
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294 | throw new Error('Cannot import the generated bundle');
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295 | }
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296 |
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297 |
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298 | this.fileWatcher.watch(id, isTransformDependency);
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299 | }
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300 | }
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301 |
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302 | exports.Task = Task;
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303 | exports.Watcher = Watcher;
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304 |
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