chushihua
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/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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class ProgressPlugin {
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constructor(options) {
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if(typeof options === "function") {
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options = {
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handler: options
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};
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}
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options = options || {};
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this.profile = options.profile;
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this.handler = options.handler;
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}
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apply(compiler) {
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const handler = this.handler || defaultHandler;
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const profile = this.profile;
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if(compiler.compilers) {
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const states = new Array(compiler.compilers.length);
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compiler.compilers.forEach(function(compiler, idx) {
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compiler.apply(new ProgressPlugin(function(p, msg) {
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states[idx] = Array.prototype.slice.apply(arguments);
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handler.apply(null, [
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states.map(state => state && state[0] || 0).reduce((a, b) => a + b) / states.length,
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`[${idx}] ${msg}`
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].concat(Array.prototype.slice.call(arguments, 2)));
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}));
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});
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} else {
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let lastModulesCount = 0;
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let moduleCount = 500;
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let doneModules = 0;
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const activeModules = [];
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const update = function update(module) {
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handler(
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0.1 + (doneModules / Math.max(lastModulesCount, moduleCount)) * 0.6,
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"building modules",
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`${doneModules}/${moduleCount} modules`,
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`${activeModules.length} active`,
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activeModules[activeModules.length - 1]
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);
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};
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const moduleDone = function moduleDone(module) {
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doneModules++;
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const ident = module.identifier();
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if(ident) {
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const idx = activeModules.indexOf(ident);
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if(idx >= 0) activeModules.splice(idx, 1);
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}
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update();
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};
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compiler.plugin("compilation", function(compilation) {
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if(compilation.compiler.isChild()) return;
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lastModulesCount = moduleCount;
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moduleCount = 0;
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doneModules = 0;
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handler(0, "compiling");
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compilation.plugin("build-module", function(module) {
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moduleCount++;
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const ident = module.identifier();
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if(ident) {
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activeModules.push(ident);
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}
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update();
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});
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compilation.plugin("failed-module", moduleDone);
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compilation.plugin("succeed-module", moduleDone);
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const syncHooks = {
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"seal": [0.71, "sealing"],
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"optimize": [0.72, "optimizing"],
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"optimize-modules-basic": [0.73, "basic module optimization"],
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"optimize-modules": [0.74, "module optimization"],
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"optimize-modules-advanced": [0.75, "advanced module optimization"],
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"optimize-chunks-basic": [0.76, "basic chunk optimization"],
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"optimize-chunks": [0.77, "chunk optimization"],
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"optimize-chunks-advanced": [0.78, "advanced chunk optimization"],
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// optimize-tree
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"optimize-chunk-modules": [0.80, "chunk modules optimization"],
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"optimize-chunk-modules-advanced": [0.81, "advanced chunk modules optimization"],
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"revive-modules": [0.82, "module reviving"],
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"optimize-module-order": [0.83, "module order optimization"],
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"optimize-module-ids": [0.84, "module id optimization"],
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"revive-chunks": [0.85, "chunk reviving"],
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"optimize-chunk-order": [0.86, "chunk order optimization"],
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"optimize-chunk-ids": [0.87, "chunk id optimization"],
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"before-hash": [0.88, "hashing"],
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"before-module-assets": [0.89, "module assets processing"],
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"before-chunk-assets": [0.90, "chunk assets processing"],
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"additional-chunk-assets": [0.91, "additional chunk assets processing"],
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"record": [0.92, "recording"]
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};
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Object.keys(syncHooks).forEach(name => {
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let pass = 0;
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const settings = syncHooks[name];
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compilation.plugin(name, () => {
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if(pass++ > 0)
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handler(settings[0], settings[1], `pass ${pass}`);
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else
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handler(settings[0], settings[1]);
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});
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});
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compilation.plugin("optimize-tree", (chunks, modules, callback) => {
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handler(0.79, "module and chunk tree optimization");
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callback();
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});
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compilation.plugin("additional-assets", callback => {
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handler(0.91, "additional asset processing");
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callback();
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});
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compilation.plugin("optimize-chunk-assets", (chunks, callback) => {
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handler(0.92, "chunk asset optimization");
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callback();
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});
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compilation.plugin("optimize-assets", (assets, callback) => {
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handler(0.94, "asset optimization");
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callback();
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});
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});
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compiler.plugin("emit", (compilation, callback) => {
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handler(0.95, "emitting");
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callback();
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});
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compiler.plugin("done", () => {
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handler(1, "");
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});
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}
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let lineCaretPosition = 0,
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lastState, lastStateTime;
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function defaultHandler(percentage, msg) {
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let state = msg;
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const details = Array.prototype.slice.call(arguments, 2);
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if(percentage < 1) {
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percentage = Math.floor(percentage * 100);
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msg = `${percentage}% ${msg}`;
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if(percentage < 100) {
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msg = ` ${msg}`;
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}
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if(percentage < 10) {
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msg = ` ${msg}`;
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}
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details.forEach(detail => {
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if(!detail) return;
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if(detail.length > 40) {
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detail = `...${detail.substr(detail.length - 37)}`;
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}
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msg += ` ${detail}`;
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});
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}
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if(profile) {
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state = state.replace(/^\d+\/\d+\s+/, "");
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if(percentage === 0) {
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lastState = null;
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lastStateTime = Date.now();
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} else if(state !== lastState || percentage === 1) {
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const now = Date.now();
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if(lastState) {
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const stateMsg = `${now - lastStateTime}ms ${lastState}`;
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goToLineStart(stateMsg);
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process.stderr.write(stateMsg + "\n");
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lineCaretPosition = 0;
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}
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lastState = state;
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lastStateTime = now;
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}
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}
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goToLineStart(msg);
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process.stderr.write(msg);
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}
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function goToLineStart(nextMessage) {
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let str = "";
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for(; lineCaretPosition > nextMessage.length; lineCaretPosition--) {
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str += "\b \b";
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}
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for(var i = 0; i < lineCaretPosition; i++) {
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str += "\b";
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}
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lineCaretPosition = nextMessage.length;
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if(str) process.stderr.write(str);
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}
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}
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}
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module.exports = ProgressPlugin;
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