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Edit File: convert-argv.js

var path = require("path");
var fs = require("fs");
fs.existsSync = fs.existsSync || path.existsSync;
var interpret = require("interpret");
var prepareOptions = require("../lib/prepareOptions");

module.exports = function(yargs, argv, convertOptions) {

var options = [];

// Shortcuts
	if(argv.d) {
		argv.debug = true;
		argv["output-pathinfo"] = true;
		if(!argv.devtool) {
			argv.devtool = "eval-cheap-module-source-map";
		}
	}
	if(argv.p) {
		argv["optimize-minimize"] = true;
		argv["define"] = [].concat(argv["define"] || []).concat("process.env.NODE_ENV=\"production\"");
	}

var i;
	if(argv.config) {
		var getConfigExtension = function getConfigExtension(configPath) {
			for(i = extensions.length - 1; i >= 0; i--) {
				var tmpExt = extensions[i];
				if(configPath.indexOf(tmpExt, configPath.length - tmpExt.length) > -1) {
					return tmpExt;
				}
			}
			return path.extname(configPath);
		};

var mapConfigArg = function mapConfigArg(configArg) {
			var resolvedPath = path.resolve(configArg);
			var extension = getConfigExtension(resolvedPath);
			return {
				path: resolvedPath,
				ext: extension
			};
		};

if(configFiles.length > 0) {
		var registerCompiler = function registerCompiler(moduleDescriptor) {
			if(moduleDescriptor) {
				if(typeof moduleDescriptor === "string") {
					require(moduleDescriptor);
				} else if(!Array.isArray(moduleDescriptor)) {
					moduleDescriptor.register(require(moduleDescriptor.module));
				} else {
					for(var i = 0; i < moduleDescriptor.length; i++) {
						try {
							registerCompiler(moduleDescriptor[i]);
							break;
						} catch(e) {
							// do nothing
						}
					}
				}
			}
		};

var requireConfig = function requireConfig(configPath) {
			var options = require(configPath);
			options = prepareOptions(options, argv);
			return options;
		};

configFiles.forEach(function(file) {
			registerCompiler(interpret.extensions[file.ext]);
			options.push(requireConfig(file.path));
		});
		configFileLoaded = true;
	}

if(!configFileLoaded) {
		return processConfiguredOptions({});
	} else if(options.length === 1) {
		return processConfiguredOptions(options[0]);
	} else {
		return processConfiguredOptions(options);
	}

function processConfiguredOptions(options) {
		if(options === null || typeof options !== "object") {
			console.error("Config did not export an object or a function returning an object.");
			process.exit(-1); // eslint-disable-line
		}

// process Promise
		if(typeof options.then === "function") {
			return options.then(processConfiguredOptions);
		}

// process ES6 default
		if(typeof options === "object" && typeof options.default === "object") {
			return processConfiguredOptions(options.default);
		}

// filter multi-config by name
		if(Array.isArray(options) && argv["config-name"]) {
			var namedOptions = options.filter(function(opt) {
				return opt.name === argv["config-name"];
			});
			if(namedOptions.length === 0) {
				console.error("Configuration with name '" + argv["config-name"] + "' was not found.");
				process.exit(-1); // eslint-disable-line
			} else if(namedOptions.length === 1) {
				return processConfiguredOptions(namedOptions[0]);
			}
			options = namedOptions;
		}

if(Array.isArray(options)) {
			options.forEach(processOptions);
		} else {
			processOptions(options);
		}

if(argv.context) {
			options.context = path.resolve(argv.context);
		}
		if(!options.context) {
			options.context = process.cwd();
		}

if(argv.watch) {
			options.watch = true;
		}

if(argv["watch-aggregate-timeout"]) {
			options.watchOptions = options.watchOptions || {};
			options.watchOptions.aggregateTimeout = +argv["watch-aggregate-timeout"];
		}

if(typeof argv["watch-poll"] !== "undefined") {
			options.watchOptions = options.watchOptions || {};
			if(argv["watch-poll"] === "true" || argv["watch-poll"] === "")
				options.watchOptions.poll = true;
			else if(!isNaN(argv["watch-poll"]))
				options.watchOptions.poll = +argv["watch-poll"];
		}

if(argv["watch-stdin"]) {
			options.watchOptions = options.watchOptions || {};
			options.watchOptions.stdin = true;
			options.watch = true;
		}

return options;
	}

function processOptions(options) {
		var noOutputFilenameDefined = !options.output || !options.output.filename;

function ifBooleanArg(name, fn) {
			ifArg(name, function(bool) {
				if(bool) {
					fn();
				}
			});
		}

function mapArgToBoolean(name, optionName) {
			ifArg(name, function(bool) {
				if(bool === true)
					options[optionName || name] = true;
				else if(bool === false)
					options[optionName || name] = false;
			});
		}

var path;
			try {
				var resolve = require("enhanced-resolve");
				path = resolve.sync(process.cwd(), name);
			} catch(e) {
				console.log("Cannot resolve plugin " + name + ".");
				process.exit(-1); // eslint-disable-line
			}
			var Plugin;
			try {
				Plugin = require(path);
			} catch(e) {
				console.log("Cannot load plugin " + name + ". (" + path + ")");
				throw e;
			}
			try {
				return new Plugin(args);
			} catch(e) {
				console.log("Cannot instantiate plugin " + name + ". (" + path + ")");
				throw e;
			}
		}

function ensureObject(parent, name) {
			if(typeof parent[name] !== "object" || parent[name] === null) {
				parent[name] = {};
			}
		}

function ensureArray(parent, name) {
			if(!Array.isArray(parent[name])) {
				parent[name] = [];
			}
		}

ifArgPair("entry", function(name, entry) {
			if(typeof options.entry[name] !== "undefined" && options.entry[name] !== null) {
				options.entry[name] = [].concat(options.entry[name]).concat(entry);
			} else {
				options.entry[name] = entry;
			}
		}, function() {
			ensureObject(options, "entry");
		});

var defineObject;
		ifArgPair("define", function(name, value) {
			if(name === null) {
				name = value;
				value = true;
			}
			defineObject[name] = value;
		}, function() {
			defineObject = {};
		}, function() {
			ensureArray(options, "plugins");
			var DefinePlugin = require("../lib/DefinePlugin");
			options.plugins.push(new DefinePlugin(defineObject));
		});

ifArg("output-path", function(value) {
			ensureObject(options, "output");
			options.output.path = path.resolve(value);
		});

ifArg("output-filename", function(value) {
			ensureObject(options, "output");
			options.output.filename = value;
			noOutputFilenameDefined = false;
		});

ifArg("output-chunk-filename", function(value) {
			ensureObject(options, "output");
			options.output.chunkFilename = value;
		});

ifArg("output-source-map-filename", function(value) {
			ensureObject(options, "output");
			options.output.sourceMapFilename = value;
		});

ifArg("output-public-path", function(value) {
			ensureObject(options, "output");
			options.output.publicPath = value;
		});

ifArg("output-jsonp-function", function(value) {
			ensureObject(options, "output");
			options.output.jsonpFunction = value;
		});

ifBooleanArg("output-pathinfo", function() {
			ensureObject(options, "output");
			options.output.pathinfo = true;
		});

ifArg("output-library", function(value) {
			ensureObject(options, "output");
			options.output.library = value;
		});

ifArg("output-library-target", function(value) {
			ensureObject(options, "output");
			options.output.libraryTarget = value;
		});

ifArg("records-input-path", function(value) {
			options.recordsInputPath = path.resolve(value);
		});

ifArg("records-output-path", function(value) {
			options.recordsOutputPath = path.resolve(value);
		});

ifArg("records-path", function(value) {
			options.recordsPath = path.resolve(value);
		});

ifArg("target", function(value) {
			options.target = value;
		});

mapArgToBoolean("cache");

ifBooleanArg("hot", function() {
			ensureArray(options, "plugins");
			var HotModuleReplacementPlugin = require("../lib/HotModuleReplacementPlugin");
			options.plugins.push(new HotModuleReplacementPlugin());
		});

ifBooleanArg("debug", function() {
			ensureArray(options, "plugins");
			var LoaderOptionsPlugin = require("../lib/LoaderOptionsPlugin");
			options.plugins.push(new LoaderOptionsPlugin({
				debug: true
			}));
		});

ifArg("devtool", function(value) {
			options.devtool = value;
		});

ifArg("resolve-extensions", function(value) {
			ensureObject(options, "resolve");
			if(Array.isArray(value)) {
				options.resolve.extensions = value;
			} else {
				options.resolve.extensions = value.split(/,\s*/);
			}
		});

ifArg("optimize-max-chunks", function(value) {
			ensureArray(options, "plugins");
			var LimitChunkCountPlugin = require("../lib/optimize/LimitChunkCountPlugin");
			options.plugins.push(new LimitChunkCountPlugin({
				maxChunks: parseInt(value, 10)
			}));
		});

ifArg("optimize-min-chunk-size", function(value) {
			ensureArray(options, "plugins");
			var MinChunkSizePlugin = require("../lib/optimize/MinChunkSizePlugin");
			options.plugins.push(new MinChunkSizePlugin({
				minChunkSize: parseInt(value, 10)
			}));
		});

ifBooleanArg("optimize-minimize", function() {
			ensureArray(options, "plugins");
			var UglifyJsPlugin = require("../lib/optimize/UglifyJsPlugin");
			var LoaderOptionsPlugin = require("../lib/LoaderOptionsPlugin");
			options.plugins.push(new UglifyJsPlugin({
				sourceMap: options.devtool && (options.devtool.indexOf("sourcemap") >= 0 || options.devtool.indexOf("source-map") >= 0)
			}));
			options.plugins.push(new LoaderOptionsPlugin({
				minimize: true
			}));
		});

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);
				value = value.substr(idx + 1);
			} else {
				name = value;
			}
			var ProvidePlugin = require("../lib/ProvidePlugin");
			options.plugins.push(new ProvidePlugin(name, value));
		});

ifArg("plugin", function(value) {
			ensureArray(options, "plugins");
			options.plugins.push(loadPlugin(value));
		});

mapArgToBoolean("bail");

mapArgToBoolean("profile");

if(noOutputFilenameDefined) {
			ensureObject(options, "output");
			if(convertOptions && convertOptions.outputFilename) {
				options.output.path = path.resolve(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.resolve(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-filename");
			} else {
				console.error("No configuration file found and no output filename configured via CLI option.");
				console.error("A configuration file could be named 'webpack.config.js' in the current directory.");
				console.error("Use --help to display the CLI options.");
				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");

if(!options.entry) {
			if(configFileLoaded) {
				console.error("Configuration file found but no entry configured.");
			} else {
				console.error("No configuration file found and no entry configured via CLI option.");
				console.error("When using the CLI you need to provide at least two arguments: entry and output.");
				console.error("A configuration file could be named 'webpack.config.js' in the current directory.");
			}
			console.error("Use --help to display the CLI options.");
			process.exit(-1); // eslint-disable-line
		}
	}
};

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