mirror of https://github.com/webpack/webpack.git
581 lines
15 KiB
JavaScript
581 lines
15 KiB
JavaScript
var path = require("path");
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var fs = require("fs");
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fs.existsSync = fs.existsSync || path.existsSync;
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var resolve = require("enhanced-resolve");
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var interpret = require("interpret");
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module.exports = function(optimist, argv, convertOptions) {
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var options = {};
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// Help
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if(argv.help) {
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optimist.showHelp();
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process.exit(-1); // eslint-disable-line
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}
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// Shortcuts
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if(argv.d) {
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argv.debug = true;
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argv["output-pathinfo"] = true;
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if(!argv.devtool) {
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argv.devtool = "eval-source-map";
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}
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argv["define"] = argv["define"].concat("process.env.NODE_ENV=\"production\"");
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}
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if(argv.p) {
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argv["optimize-minimize"] = true;
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}
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var configFileLoaded = false;
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var configPath, ext;
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var extensions = Object.keys(interpret.extensions).sort(function(a, b) {
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return a.length - b.length;
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});
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var configFiles = ["webpack.config", "webpackfile"].map(function(filename) {
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return extensions.map(function(ext) {
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return {
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path: path.resolve(filename + ext),
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ext: ext
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};
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});
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}).reduce(function(a, i) { return a.concat(i); }, []);
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if(argv.config) {
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configPath = path.resolve(argv.config);
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for(var i = extensions.length - 1; i >= 0; i--) {
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var tmpExt = extensions[i];
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if(configPath.indexOf(tmpExt, configPath.length - tmpExt.length) > -1) {
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ext = tmpExt;
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break;
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}
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}
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if(!ext) {
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ext = path.extname(configPath);
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}
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} else {
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for(var i = 0; i < configFiles.length; i++) {
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var webpackConfig = configFiles[i].path;
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if(fs.existsSync(webpackConfig)) {
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ext = configFiles[i].ext;
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configPath = webpackConfig;
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break;
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}
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}
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}
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if(configPath) {
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function registerCompiler(moduleDescriptor) {
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if(moduleDescriptor) {
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if(typeof moduleDescriptor === "string") {
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require(moduleDescriptor);
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} else if(!Array.isArray(moduleDescriptor)) {
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moduleDescriptor.register(require(moduleDescriptor.module));
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} else {
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for(var i = 0; i < moduleDescriptor.length; i++) {
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try {
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registerCompiler(moduleDescriptor[i]);
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break;
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} catch(e) {
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// do nothing
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}
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}
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}
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}
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}
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registerCompiler(interpret.extensions[ext]);
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options = require(configPath);
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configFileLoaded = true;
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}
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if(typeof options === "function") {
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options = options(argv.env, argv);
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}
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return processConfiguredOptions(options);
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function processConfiguredOptions(options) {
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if(typeof options !== "object" || options === null) {
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console.log("Config did not export an object or a function returning an object.");
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process.exit(-1); // eslint-disable-line
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}
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// process Promise
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if(typeof options.then === "function") {
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return options.then(processConfiguredOptions);
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}
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// process ES6 default
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if(typeof options === "object" && typeof options["default"] === "object") {
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return processConfiguredOptions(options["default"]);
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}
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if(Array.isArray(options)) {
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options.forEach(processOptions);
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} else {
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processOptions(options);
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}
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if(argv.context) {
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options.context = path.resolve(argv.context);
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}
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if(!options.context) {
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options.context = process.cwd();
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}
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if(argv.watch) {
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// TODO remove this in next major version
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if(options.watch && typeof options.watch === "object") {
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console.warn("options.watch is deprecated: Use 'options.watchOptions' instead");
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options.watchOptions = options.watch;
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}
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// TODO remove this in next major version
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if(options.watchDelay) {
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console.warn("options.watchDelay is deprecated: Use 'options.watchOptions.aggregateTimeout' instead");
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options.watchOptions = options.watchOptions || {};
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options.watchOptions.aggregateTimeout = options.watchDelay;
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}
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options.watch = true;
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}
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if(argv["watch-delay"]) {
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console.warn("--watch-delay is deprecated: Use '--watch-aggregate-timeout' instead");
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options.watchOptions = options.watchOptions || {};
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options.watchOptions.aggregateTimeout = +argv["watch-delay"];
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}
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if(argv["watch-aggregate-timeout"]) {
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options.watchOptions = options.watchOptions || {};
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options.watchOptions.aggregateTimeout = +argv["watch-aggregate-timeout"];
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}
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if(argv["watch-poll"]) {
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options.watchOptions = options.watchOptions || {};
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if(typeof argv["watch-poll"] !== "boolean")
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options.watchOptions.poll = +argv["watch-poll"];
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else
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options.watchOptions.poll = true;
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}
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if(argv["watch-stdin"]) {
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options.watchOptions = options.watchOptions || {};
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options.watchOptions.stdin = true;
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options.watch = true;
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}
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return options;
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}
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function processOptions(options) {
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function ifArg(name, fn, init, finalize) {
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if(Array.isArray(argv[name])) {
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if(init) {
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init();
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}
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argv[name].forEach(fn);
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if(finalize) {
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finalize();
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}
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} else if(typeof argv[name] !== "undefined") {
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if(init) {
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init();
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}
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fn(argv[name], -1);
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if(finalize) {
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finalize();
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}
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}
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}
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function ifArgPair(name, fn, init, finalize) {
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ifArg(name, function(content, idx) {
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var i = content.indexOf("=");
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if(i < 0) {
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return fn(null, content, idx);
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} else {
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return fn(content.substr(0, i), content.substr(i + 1), idx);
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}
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}, init, finalize);
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}
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function ifBooleanArg(name, fn) {
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ifArg(name, function(bool) {
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if(bool) {
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fn();
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}
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});
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}
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function mapArgToBoolean(name, optionName) {
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ifBooleanArg(name, function() {
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options[optionName || name] = true;
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});
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}
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function mapArgToBooleanInverse(name, optionName) {
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ifArg(name, function(bool) {
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if(!bool) {
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options[optionName || name] = false;
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}
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});
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}
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function mapArgToPath(name, optionName) {
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ifArg(name, function(str) {
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options[optionName || name] = path.resolve(str);
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});
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}
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function loadPlugin(name) {
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var loadUtils = require("loader-utils");
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var args = null;
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try {
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var p = name && name.indexOf("?");
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if(p > -1) {
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args = loadUtils.parseQuery(name.substring(p));
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name = name.substring(0, p);
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}
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} catch(e) {
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console.log("Invalid plugin arguments " + name + " (" + e + ").");
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process.exit(-1); // eslint-disable-line
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}
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var path;
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try {
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path = resolve.sync(process.cwd(), name);
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} catch(e) {
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console.log("Cannot resolve plugin " + name + ".");
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process.exit(-1); // eslint-disable-line
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}
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var Plugin;
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try {
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Plugin = require(path);
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} catch(e) {
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console.log("Cannot load plugin " + name + ". (" + path + ")");
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throw e;
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}
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try {
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return new Plugin(args);
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} catch(e) {
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console.log("Cannot instantiate plugin " + name + ". (" + path + ")");
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throw e;
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}
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}
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function ensureObject(parent, name) {
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if(typeof parent[name] !== "object" || parent[name] === null) {
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parent[name] = {};
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}
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}
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function ensureArray(parent, name) {
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if(!Array.isArray(parent[name])) {
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parent[name] = [];
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}
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}
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ifArgPair("entry", function(name, entry) {
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options.entry[name] = entry;
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}, function() {
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ensureObject(options, "entry");
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});
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function bindLoaders(arg, collection) {
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ifArgPair(arg, function(name, binding) {
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if(name === null) {
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name = binding;
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}
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options.module[collection].push({
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test: new RegExp("\\." + name.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&") + "$"),
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loader: binding
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});
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}, function() {
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ensureObject(options, "module");
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ensureArray(options.module, collection);
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});
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}
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bindLoaders("module-bind", "loaders");
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bindLoaders("module-bind-pre", "preLoaders");
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bindLoaders("module-bind-post", "postLoaders");
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var defineObject;
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ifArgPair("define", function(name, value) {
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if(name === null) {
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name = value;
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value = true;
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}
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defineObject[name] = value;
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}, function() {
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defineObject = {};
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}, function() {
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ensureArray(options, "plugins");
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var DefinePlugin = require("../lib/DefinePlugin");
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options.plugins.push(new DefinePlugin(defineObject));
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});
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ifArg("output-path", function(value) {
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ensureObject(options, "output");
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options.output.path = value;
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});
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ifArg("output-file", function(value) {
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console.warn("output.file will be deprecated: Use 'output.filename' instead");
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ensureObject(options, "output");
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options.output.filename = value;
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});
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ifArg("output-filename", function(value) {
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ensureObject(options, "output");
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options.output.filename = value;
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});
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ifArg("output-chunk-file", function(value) {
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ensureObject(options, "output");
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options.output.chunkFilename = value;
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});
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ifArg("output-source-map-file", function(value) {
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ensureObject(options, "output");
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options.output.sourceMapFilename = value;
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});
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ifArg("output-public-path", function(value) {
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ensureObject(options, "output");
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options.output.publicPath = value;
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});
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ifArg("output-jsonp-function", function(value) {
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ensureObject(options, "output");
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options.output.jsonpFunction = value;
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});
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ifBooleanArg("output-pathinfo", function() {
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ensureObject(options, "output");
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options.output.pathinfo = true;
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});
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ifArg("output-library", function(value) {
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ensureObject(options, "output");
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options.output.library = value;
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});
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ifArg("output-library-target", function(value) {
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ensureObject(options, "output");
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options.output.libraryTarget = value;
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});
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ifArg("records-input-path", function(value) {
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options.recordsInputPath = path.resolve(value);
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});
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ifArg("records-output-path", function(value) {
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options.recordsOutputPath = path.resolve(value);
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});
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ifArg("records-path", function(value) {
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options.recordsPath = path.resolve(value);
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});
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ifArg("target", function(value) {
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options.target = value;
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});
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mapArgToBooleanInverse("cache");
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ifBooleanArg("hot", function() {
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ensureArray(options, "plugins");
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var HotModuleReplacementPlugin = require("../lib/HotModuleReplacementPlugin");
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options.plugins.push(new HotModuleReplacementPlugin({
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multiStep: true
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}));
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});
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mapArgToBoolean("debug");
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ifBooleanArg("progress", function() {
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var ProgressPlugin = require("../lib/ProgressPlugin");
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ensureArray(options, "plugins");
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var chars = 0,
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lastState, lastStateTime;
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options.plugins.push(new ProgressPlugin(function(percentage, msg) {
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var state = msg;
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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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}
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if(options.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 = +new Date();
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} else if(state !== lastState || percentage === 1) {
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var now = +new Date();
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if(lastState) {
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var stateMsg = (now - lastStateTime) + "ms " + lastState;
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goToLineStart(stateMsg);
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process.stderr.write(stateMsg + "\n");
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chars = 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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var str = "";
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for(; chars > nextMessage.length; chars--) {
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str += "\b \b";
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}
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chars = nextMessage.length;
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for(var i = 0; i < chars; i++) {
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str += "\b";
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}
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if(str) process.stderr.write(str);
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}
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});
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ifArg("devtool", function(value) {
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options.devtool = value;
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});
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|
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function processResolveAlias(arg, key) {
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ifArgPair(arg, function(name, value) {
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if(!name) {
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throw new Error("--" + arg + " <string>=<string>");
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}
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ensureObject(options, key);
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ensureObject(options[key], "alias");
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options[key].alias[name] = value;
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});
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}
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processResolveAlias("resolve-alias", "resolve");
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processResolveAlias("resolve-loader-alias", "resolveLoader");
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|
|
ifArg("optimize-max-chunks", function(value) {
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|
ensureArray(options, "plugins");
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|
var LimitChunkCountPlugin = require("../lib/optimize/LimitChunkCountPlugin");
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|
options.plugins.push(new LimitChunkCountPlugin({
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maxChunks: parseInt(value, 10)
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}));
|
|
});
|
|
|
|
ifArg("optimize-min-chunk-size", function(value) {
|
|
ensureArray(options, "plugins");
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|
var MinChunkSizePlugin = require("../lib/optimize/MinChunkSizePlugin");
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|
options.plugins.push(new MinChunkSizePlugin({
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minChunkSize: parseInt(value, 10)
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|
}));
|
|
});
|
|
|
|
ifBooleanArg("optimize-minimize", function() {
|
|
ensureArray(options, "plugins");
|
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var UglifyJsPlugin = require("../lib/optimize/UglifyJsPlugin");
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|
options.plugins.push(new UglifyJsPlugin());
|
|
});
|
|
|
|
ifBooleanArg("optimize-dedupe", function() {
|
|
ensureArray(options, "plugins");
|
|
var DedupePlugin = require("../lib/optimize/DedupePlugin");
|
|
options.plugins.push(new DedupePlugin());
|
|
});
|
|
|
|
ifArg("prefetch", function(request) {
|
|
ensureArray(options, "plugins");
|
|
var PrefetchPlugin = require("../lib/PrefetchPlugin");
|
|
options.plugins.push(new PrefetchPlugin(request));
|
|
});
|
|
|
|
ifArg("provide", function(value) {
|
|
ensureArray(options, "plugins");
|
|
var idx = value.indexOf("=");
|
|
var name;
|
|
if(idx >= 0) {
|
|
name = value.substr(0, idx);
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|
value = value.substr(idx + 1);
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|
} else {
|
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name = value;
|
|
}
|
|
var ProvidePlugin = require("../lib/ProvidePlugin");
|
|
options.plugins.push(new ProvidePlugin(name, value));
|
|
});
|
|
|
|
ifBooleanArg("labeled-modules", function() {
|
|
ensureArray(options, "plugins");
|
|
var LabeledModulesPlugin = require("../lib/dependencies/LabeledModulesPlugin");
|
|
options.plugins.push(new LabeledModulesPlugin());
|
|
});
|
|
|
|
ifArg("plugin", function(value) {
|
|
ensureArray(options, "plugins");
|
|
options.plugins.push(loadPlugin(value));
|
|
});
|
|
|
|
mapArgToBoolean("bail");
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|
|
|
mapArgToBoolean("profile");
|
|
|
|
if(!options.output || !options.output.filename) {
|
|
ensureObject(options, "output");
|
|
if(convertOptions && convertOptions.outputFilename) {
|
|
options.output.path = path.dirname(convertOptions.outputFilename);
|
|
options.output.filename = path.basename(convertOptions.outputFilename);
|
|
} else if(argv._.length > 0) {
|
|
options.output.filename = argv._.pop();
|
|
options.output.path = path.dirname(options.output.filename);
|
|
options.output.filename = path.basename(options.output.filename);
|
|
} else if(configFileLoaded) {
|
|
throw new Error("'output.filename' is required, either in config file or as --output-file");
|
|
} else {
|
|
optimist.showHelp();
|
|
console.error("Output filename not configured.");
|
|
process.exit(-1); // eslint-disable-line
|
|
}
|
|
}
|
|
|
|
if(argv._.length > 0) {
|
|
if(Array.isArray(options.entry) || typeof options.entry === "string") {
|
|
options.entry = {
|
|
main: options.entry
|
|
};
|
|
}
|
|
ensureObject(options, "entry");
|
|
|
|
function addTo(name, entry) {
|
|
if(options.entry[name]) {
|
|
if(!Array.isArray(options.entry[name])) {
|
|
options.entry[name] = [options.entry[name]];
|
|
}
|
|
options.entry[name].push(entry);
|
|
} else {
|
|
options.entry[name] = entry;
|
|
}
|
|
}
|
|
argv._.forEach(function(content) {
|
|
var i = content.indexOf("=");
|
|
var j = content.indexOf("?");
|
|
if(i < 0 || (j >= 0 && j < i)) {
|
|
var resolved = path.resolve(content);
|
|
if(fs.existsSync(resolved)) {
|
|
addTo("main", resolved);
|
|
} else {
|
|
addTo("main", content);
|
|
}
|
|
} else {
|
|
addTo(content.substr(0, i), content.substr(i + 1));
|
|
}
|
|
});
|
|
}
|
|
}
|
|
};
|