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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
commite06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch)
tree55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/webpack/lib/MultiCompiler.js
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Diffstat (limited to 'node_modules/webpack/lib/MultiCompiler.js')
-rw-r--r--node_modules/webpack/lib/MultiCompiler.js290
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diff --git a/node_modules/webpack/lib/MultiCompiler.js b/node_modules/webpack/lib/MultiCompiler.js
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+/*
+ MIT License http://www.opensource.org/licenses/mit-license.php
+ Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const { Tapable, SyncHook, MultiHook } = require("tapable");
+const asyncLib = require("neo-async");
+const MultiWatching = require("./MultiWatching");
+const MultiStats = require("./MultiStats");
+const ConcurrentCompilationError = require("./ConcurrentCompilationError");
+
+module.exports = class MultiCompiler extends Tapable {
+ constructor(compilers) {
+ super();
+ this.hooks = {
+ done: new SyncHook(["stats"]),
+ invalid: new MultiHook(compilers.map(c => c.hooks.invalid)),
+ run: new MultiHook(compilers.map(c => c.hooks.run)),
+ watchClose: new SyncHook([]),
+ watchRun: new MultiHook(compilers.map(c => c.hooks.watchRun)),
+ infrastructureLog: new MultiHook(
+ compilers.map(c => c.hooks.infrastructureLog)
+ )
+ };
+ if (!Array.isArray(compilers)) {
+ compilers = Object.keys(compilers).map(name => {
+ compilers[name].name = name;
+ return compilers[name];
+ });
+ }
+ this.compilers = compilers;
+ let doneCompilers = 0;
+ let compilerStats = [];
+ let index = 0;
+ for (const compiler of this.compilers) {
+ let compilerDone = false;
+ const compilerIndex = index++;
+ // eslint-disable-next-line no-loop-func
+ compiler.hooks.done.tap("MultiCompiler", stats => {
+ if (!compilerDone) {
+ compilerDone = true;
+ doneCompilers++;
+ }
+ compilerStats[compilerIndex] = stats;
+ if (doneCompilers === this.compilers.length) {
+ this.hooks.done.call(new MultiStats(compilerStats));
+ }
+ });
+ // eslint-disable-next-line no-loop-func
+ compiler.hooks.invalid.tap("MultiCompiler", () => {
+ if (compilerDone) {
+ compilerDone = false;
+ doneCompilers--;
+ }
+ });
+ }
+ this.running = false;
+ }
+
+ get outputPath() {
+ let commonPath = this.compilers[0].outputPath;
+ for (const compiler of this.compilers) {
+ while (
+ compiler.outputPath.indexOf(commonPath) !== 0 &&
+ /[/\\]/.test(commonPath)
+ ) {
+ commonPath = commonPath.replace(/[/\\][^/\\]*$/, "");
+ }
+ }
+
+ if (!commonPath && this.compilers[0].outputPath[0] === "/") return "/";
+ return commonPath;
+ }
+
+ get inputFileSystem() {
+ throw new Error("Cannot read inputFileSystem of a MultiCompiler");
+ }
+
+ get outputFileSystem() {
+ throw new Error("Cannot read outputFileSystem of a MultiCompiler");
+ }
+
+ set inputFileSystem(value) {
+ for (const compiler of this.compilers) {
+ compiler.inputFileSystem = value;
+ }
+ }
+
+ set outputFileSystem(value) {
+ for (const compiler of this.compilers) {
+ compiler.outputFileSystem = value;
+ }
+ }
+
+ getInfrastructureLogger(name) {
+ return this.compilers[0].getInfrastructureLogger(name);
+ }
+
+ validateDependencies(callback) {
+ const edges = new Set();
+ const missing = [];
+ const targetFound = compiler => {
+ for (const edge of edges) {
+ if (edge.target === compiler) {
+ return true;
+ }
+ }
+ return false;
+ };
+ const sortEdges = (e1, e2) => {
+ return (
+ e1.source.name.localeCompare(e2.source.name) ||
+ e1.target.name.localeCompare(e2.target.name)
+ );
+ };
+ for (const source of this.compilers) {
+ if (source.dependencies) {
+ for (const dep of source.dependencies) {
+ const target = this.compilers.find(c => c.name === dep);
+ if (!target) {
+ missing.push(dep);
+ } else {
+ edges.add({
+ source,
+ target
+ });
+ }
+ }
+ }
+ }
+ const errors = missing.map(m => `Compiler dependency \`${m}\` not found.`);
+ const stack = this.compilers.filter(c => !targetFound(c));
+ while (stack.length > 0) {
+ const current = stack.pop();
+ for (const edge of edges) {
+ if (edge.source === current) {
+ edges.delete(edge);
+ const target = edge.target;
+ if (!targetFound(target)) {
+ stack.push(target);
+ }
+ }
+ }
+ }
+ if (edges.size > 0) {
+ const lines = Array.from(edges)
+ .sort(sortEdges)
+ .map(edge => `${edge.source.name} -> ${edge.target.name}`);
+ lines.unshift("Circular dependency found in compiler dependencies.");
+ errors.unshift(lines.join("\n"));
+ }
+ if (errors.length > 0) {
+ const message = errors.join("\n");
+ callback(new Error(message));
+ return false;
+ }
+ return true;
+ }
+
+ runWithDependencies(compilers, fn, callback) {
+ const fulfilledNames = new Set();
+ let remainingCompilers = compilers;
+ const isDependencyFulfilled = d => fulfilledNames.has(d);
+ const getReadyCompilers = () => {
+ let readyCompilers = [];
+ let list = remainingCompilers;
+ remainingCompilers = [];
+ for (const c of list) {
+ const ready =
+ !c.dependencies || c.dependencies.every(isDependencyFulfilled);
+ if (ready) {
+ readyCompilers.push(c);
+ } else {
+ remainingCompilers.push(c);
+ }
+ }
+ return readyCompilers;
+ };
+ const runCompilers = callback => {
+ if (remainingCompilers.length === 0) return callback();
+ asyncLib.map(
+ getReadyCompilers(),
+ (compiler, callback) => {
+ fn(compiler, err => {
+ if (err) return callback(err);
+ fulfilledNames.add(compiler.name);
+ runCompilers(callback);
+ });
+ },
+ callback
+ );
+ };
+ runCompilers(callback);
+ }
+
+ watch(watchOptions, handler) {
+ if (this.running) return handler(new ConcurrentCompilationError());
+
+ let watchings = [];
+ let allStats = this.compilers.map(() => null);
+ let compilerStatus = this.compilers.map(() => false);
+ if (this.validateDependencies(handler)) {
+ this.running = true;
+ this.runWithDependencies(
+ this.compilers,
+ (compiler, callback) => {
+ const compilerIdx = this.compilers.indexOf(compiler);
+ let firstRun = true;
+ let watching = compiler.watch(
+ Array.isArray(watchOptions)
+ ? watchOptions[compilerIdx]
+ : watchOptions,
+ (err, stats) => {
+ if (err) handler(err);
+ if (stats) {
+ allStats[compilerIdx] = stats;
+ compilerStatus[compilerIdx] = "new";
+ if (compilerStatus.every(Boolean)) {
+ const freshStats = allStats.filter((s, idx) => {
+ return compilerStatus[idx] === "new";
+ });
+ compilerStatus.fill(true);
+ const multiStats = new MultiStats(freshStats);
+ handler(null, multiStats);
+ }
+ }
+ if (firstRun && !err) {
+ firstRun = false;
+ callback();
+ }
+ }
+ );
+ watchings.push(watching);
+ },
+ () => {
+ // ignore
+ }
+ );
+ }
+
+ return new MultiWatching(watchings, this);
+ }
+
+ run(callback) {
+ if (this.running) {
+ return callback(new ConcurrentCompilationError());
+ }
+
+ const finalCallback = (err, stats) => {
+ this.running = false;
+
+ if (callback !== undefined) {
+ return callback(err, stats);
+ }
+ };
+
+ const allStats = this.compilers.map(() => null);
+ if (this.validateDependencies(callback)) {
+ this.running = true;
+ this.runWithDependencies(
+ this.compilers,
+ (compiler, callback) => {
+ const compilerIdx = this.compilers.indexOf(compiler);
+ compiler.run((err, stats) => {
+ if (err) {
+ return callback(err);
+ }
+ allStats[compilerIdx] = stats;
+ callback();
+ });
+ },
+ err => {
+ if (err) {
+ return finalCallback(err);
+ }
+ finalCallback(null, new MultiStats(allStats));
+ }
+ );
+ }
+ }
+
+ purgeInputFileSystem() {
+ for (const compiler of this.compilers) {
+ if (compiler.inputFileSystem && compiler.inputFileSystem.purge) {
+ compiler.inputFileSystem.purge();
+ }
+ }
+ }
+};