/lib/Compiler.js
JavaScript | 441 lines | 384 code | 53 blank | 4 comment | 52 complexity | 740dc535c2f9c1f02b87bcd47dc2f81e MD5 | raw file
- /*
- MIT License http://www.opensource.org/licenses/mit-license.php
- Author Tobias Koppers @sokra
- */
- var path = require("path");
- var assign = require("object-assign");
- var Tapable = require("tapable");
- var Compilation = require("./Compilation");
- var Parser = require("./Parser");
- var Resolver = require("enhanced-resolve/lib/Resolver");
- var NormalModuleFactory = require("./NormalModuleFactory");
- var ContextModuleFactory = require("./ContextModuleFactory");
- function Watching(compiler, watchOptions, handler) {
- this.startTime = null;
- this.invalid = false;
- this.error = null;
- this.stats = null;
- this.handler = handler;
- if(typeof watchOptions === "number") {
- this.watchOptions = {
- aggregateTimeout: watchOptions
- };
- } else if(watchOptions && typeof watchOptions === "object") {
- this.watchOptions = assign({}, watchOptions);
- } else {
- this.watchOptions = {};
- }
- this.watchOptions.aggregateTimeout = this.watchOptions.aggregateTimeout || 200;
- this.compiler = compiler;
- this.running = true;
- this.compiler.readRecords(function(err) {
- if(err) return this._done(err);
- this._go();
- }.bind(this));
- }
- Watching.prototype._go = function() {
- this.startTime = new Date().getTime();
- this.running = true;
- this.invalid = false;
- this.compiler.applyPluginsAsync("watch-run", this, function(err) {
- if(err) return this._done(err);
- this.compiler.compile(function onCompiled(err, compilation) {
- if(err) return this._done(err);
- if(this.invalid) return this._done();
- if(this.compiler.applyPluginsBailResult("should-emit", compilation) === false) {
- return this._done(null, compilation);
- }
- this.compiler.emitAssets(compilation, function(err) {
- if(err) return this._done(err);
- if(this.invalid) return this._done();
- this.compiler.emitRecords(function(err) {
- if(err) return this._done(err);
- if(compilation.applyPluginsBailResult("need-additional-pass")) {
- compilation.needAdditionalPass = true;
- var stats = compilation.getStats();
- stats.startTime = this.startTime;
- stats.endTime = new Date().getTime();
- this.compiler.applyPlugins("done", stats);
- this.compiler.applyPluginsAsync("additional-pass", function(err) {
- if(err) return this._done(err);
- this.compiler.compile(onCompiled.bind(this));
- }.bind(this));
- return;
- }
- return this._done(null, compilation);
- }.bind(this));
- }.bind(this));
- }.bind(this));
- }.bind(this));
- };
- Watching.prototype._done = function(err, compilation) {
- this.running = false;
- if(this.invalid) return this._go();
- this.error = err || null;
- this.stats = compilation ? compilation.getStats() : null;
- if(this.stats) {
- this.stats.startTime = this.startTime;
- this.stats.endTime = new Date().getTime();
- }
- if(this.stats)
- this.compiler.applyPlugins("done", this.stats);
- else
- this.compiler.applyPlugins("failed", this.error);
- this.handler(this.error, this.stats);
- if(!this.error)
- this.watch(compilation.fileDependencies, compilation.contextDependencies, compilation.missingDependencies);
- };
- Watching.prototype.watch = function(files, dirs, missing) {
- this.watcher = this.compiler.watchFileSystem.watch(files, dirs, missing, this.startTime, this.watchOptions, function(err, filesModified, contextModified, missingModified, fileTimestamps, contextTimestamps) {
- this.watcher = null;
- if(err) return this.handler(err);
- this.compiler.fileTimestamps = fileTimestamps;
- this.compiler.contextTimestamps = contextTimestamps;
- this.invalidate();
- }.bind(this), function(fileName, changeTime) {
- this.compiler.applyPlugins("invalid", fileName, changeTime);
- }.bind(this));
- };
- Watching.prototype.invalidate = function() {
- if(this.watcher) {
- this.watcher.pause();
- this.watcher = null;
- }
- if(this.running) {
- this.invalid = true;
- return false;
- } else {
- this._go();
- }
- };
- Watching.prototype.close = function(callback) {
- if(callback === undefined) callback = function() {};
- if(this.watcher) {
- this.watcher.close();
- this.watcher = null;
- }
- if(this.running) {
- this.invalid = true;
- this._done = function() {
- callback();
- };
- } else {
- callback();
- }
- };
- function Compiler() {
- Tapable.call(this);
- this.outputPath = "";
- this.outputFileSystem = null;
- this.inputFileSystem = null;
- this.recordsInputPath = null;
- this.recordsOutputPath = null;
- this.records = {};
- this.fileTimestamps = {};
- this.contextTimestamps = {};
- this.resolvers = {
- normal: new Resolver(null),
- loader: new Resolver(null),
- context: new Resolver(null)
- };
- this.parser = new Parser();
- this.options = {};
- }
- module.exports = Compiler;
- Compiler.prototype = Object.create(Tapable.prototype);
- Compiler.prototype.constructor = Compiler;
- Compiler.Watching = Watching;
- Compiler.prototype.watch = function(watchOptions, handler) {
- this.fileTimestamps = {};
- this.contextTimestamps = {};
- var watching = new Watching(this, watchOptions, handler);
- return watching;
- };
- Compiler.prototype.run = function(callback) {
- var startTime = new Date().getTime();
- this.applyPluginsAsync("before-run", this, function(err) {
- if(err) return callback(err);
- this.applyPluginsAsync("run", this, function(err) {
- if(err) return callback(err);
- this.readRecords(function(err) {
- if(err) return callback(err);
- this.compile(function onCompiled(err, compilation) {
- if(err) return callback(err);
- if(this.applyPluginsBailResult("should-emit", compilation) === false) {
- var stats = compilation.getStats();
- stats.startTime = startTime;
- stats.endTime = new Date().getTime();
- this.applyPlugins("done", stats);
- return callback(null, stats);
- }
- this.emitAssets(compilation, function(err) {
- if(err) return callback(err);
- if(compilation.applyPluginsBailResult("need-additional-pass")) {
- compilation.needAdditionalPass = true;
- var stats = compilation.getStats();
- stats.startTime = startTime;
- stats.endTime = new Date().getTime();
- this.applyPlugins("done", stats);
- this.applyPluginsAsync("additional-pass", function(err) {
- if(err) return callback(err);
- this.compile(onCompiled.bind(this));
- }.bind(this));
- return;
- }
- this.emitRecords(function(err) {
- if(err) return callback(err);
- var stats = compilation.getStats();
- stats.startTime = startTime;
- stats.endTime = new Date().getTime();
- this.applyPlugins("done", stats);
- return callback(null, stats);
- }.bind(this));
- }.bind(this));
- }.bind(this));
- }.bind(this));
- }.bind(this));
- }.bind(this));
- };
- Compiler.prototype.runAsChild = function(callback) {
- this.compile(function(err, compilation) {
- if(err) return callback(err);
- this.parentCompilation.children.push(compilation);
- Object.keys(compilation.assets).forEach(function(name) {
- this.parentCompilation.assets[name] = compilation.assets[name];
- }.bind(this));
- var entries = compilation.chunks.filter(function(chunk) {
- return chunk.entry;
- });
- return callback(null, entries, compilation);
- }.bind(this));
- };
- Compiler.prototype.purgeInputFileSystem = function() {
- if(this.inputFileSystem && this.inputFileSystem.purge)
- this.inputFileSystem.purge();
- };
- Compiler.prototype.emitAssets = function(compilation, callback) {
- var outputPath;
- this.applyPluginsAsync("emit", compilation, function(err) {
- if(err) return callback(err);
- outputPath = compilation.getPath(this.outputPath);
- this.outputFileSystem.mkdirp(outputPath, emitFiles.bind(this));
- }.bind(this));
- function emitFiles(err) {
- if(err) return callback(err);
- require("async").forEach(Object.keys(compilation.assets), function(file, callback) {
- var targetFile = file;
- var queryStringIdx = targetFile.indexOf("?");
- if(queryStringIdx >= 0) {
- targetFile = targetFile.substr(0, queryStringIdx);
- }
- if(targetFile.match(/\/|\\/)) {
- var dir = path.dirname(targetFile);
- this.outputFileSystem.mkdirp(this.outputFileSystem.join(outputPath, dir), writeOut.bind(this));
- } else writeOut.call(this);
- function writeOut(err) {
- if(err) return callback(err);
- var targetPath = this.outputFileSystem.join(outputPath, targetFile);
- var source = compilation.assets[file];
- if(source.existsAt === targetPath) {
- source.emitted = false;
- return callback();
- }
- var content = source.source();
- if(!Buffer.isBuffer(content))
- content = new Buffer(content, "utf-8");
- source.existsAt = targetPath;
- source.emitted = true;
- this.outputFileSystem.writeFile(targetPath, content, callback);
- }
- }.bind(this), function(err) {
- if(err) return callback(err);
- afterEmit.call(this);
- }.bind(this));
- }
- function afterEmit() {
- this.applyPluginsAsync("after-emit", compilation, function(err) {
- if(err) return callback(err);
- return callback();
- });
- }
- };
- Compiler.prototype.emitRecords = function emitRecords(callback) {
- if(!this.recordsOutputPath) return callback();
- var idx1 = this.recordsOutputPath.lastIndexOf("/");
- var idx2 = this.recordsOutputPath.lastIndexOf("\\");
- var recordsOutputPathDirectory = null;
- if(idx1 > idx2) recordsOutputPathDirectory = this.recordsOutputPath.substr(0, idx1);
- if(idx1 < idx2) recordsOutputPathDirectory = this.recordsOutputPath.substr(0, idx2);
- if(!recordsOutputPathDirectory) return writeFile.call(this);
- this.outputFileSystem.mkdirp(recordsOutputPathDirectory, function(err) {
- if(err) return callback(err);
- writeFile.call(this);
- }.bind(this));
- function writeFile() {
- this.outputFileSystem.writeFile(this.recordsOutputPath, JSON.stringify(this.records, undefined, 2), callback);
- }
- };
- Compiler.prototype.readRecords = function readRecords(callback) {
- if(!this.recordsInputPath) {
- this.records = {};
- return callback();
- }
- this.inputFileSystem.stat(this.recordsInputPath, function(err) {
- // It doesn't exist
- // We can ignore this.
- if(err) return callback();
- this.inputFileSystem.readFile(this.recordsInputPath, function(err, content) {
- if(err) return callback(err);
- try {
- this.records = JSON.parse(content);
- } catch(e) {
- e.message = "Cannot parse records: " + e.message;
- return callback(e);
- }
- return callback();
- }.bind(this));
- }.bind(this));
- };
- Compiler.prototype.createChildCompiler = function(compilation, compilerName, outputOptions) {
- var childCompiler = new Compiler();
- for(var name in this._plugins) {
- if(["make", "compile", "emit", "after-emit", "invalid", "done", "this-compilation"].indexOf(name) < 0)
- childCompiler._plugins[name] = this._plugins[name].slice();
- }
- childCompiler.name = compilerName;
- childCompiler.outputPath = this.outputPath;
- childCompiler.inputFileSystem = this.inputFileSystem;
- childCompiler.outputFileSystem = null;
- childCompiler.resolvers = this.resolvers;
- childCompiler.parser = this.parser;
- childCompiler.fileTimestamps = this.fileTimestamps;
- childCompiler.contextTimestamps = this.contextTimestamps;
- if(!this.records[compilerName]) this.records[compilerName] = [];
- this.records[compilerName].push(childCompiler.records = {});
- childCompiler.options = Object.create(this.options);
- childCompiler.options.output = Object.create(childCompiler.options.output);
- for(name in outputOptions) {
- childCompiler.options.output[name] = outputOptions[name];
- }
- childCompiler.parentCompilation = compilation;
- return childCompiler;
- };
- Compiler.prototype.isChild = function() {
- return !!this.parentCompilation;
- };
- Compiler.prototype.createCompilation = function() {
- return new Compilation(this);
- };
- Compiler.prototype.newCompilation = function(params) {
- var compilation = this.createCompilation();
- compilation.fileTimestamps = this.fileTimestamps;
- compilation.contextTimestamps = this.contextTimestamps;
- compilation.name = this.name;
- compilation.records = this.records;
- this.applyPlugins("this-compilation", compilation, params);
- this.applyPlugins("compilation", compilation, params);
- return compilation;
- };
- Compiler.prototype.createNormalModuleFactory = function() {
- var normalModuleFactory = new NormalModuleFactory(this.options.context, this.resolvers, this.parser, this.options.module || {});
- this.applyPlugins("normal-module-factory", normalModuleFactory);
- return normalModuleFactory;
- };
- Compiler.prototype.createContextModuleFactory = function() {
- var contextModuleFactory = new ContextModuleFactory(this.resolvers, this.inputFileSystem);
- this.applyPlugins("context-module-factory", contextModuleFactory);
- return contextModuleFactory;
- };
- Compiler.prototype.newCompilationParams = function() {
- var params = {
- normalModuleFactory: this.createNormalModuleFactory(),
- contextModuleFactory: this.createContextModuleFactory()
- };
- return params;
- };
- Compiler.prototype.compile = function(callback) {
- var params = this.newCompilationParams();
- this.applyPlugins("compile", params);
- var compilation = this.newCompilation(params);
- this.applyPluginsParallel("make", compilation, function(err) {
- if(err) return callback(err);
- compilation.seal(function(err) {
- if(err) return callback(err);
- this.applyPluginsAsync("after-compile", compilation, function(err) {
- if(err) return callback(err);
- return callback(null, compilation);
- });
- }.bind(this));
- }.bind(this));
- };