Support returning Promise and ES6 default export from configuration

bin/convert-argv.js

@@ -11,7 +11,7 @@ module.exports = function(optimist, argv, convertOptions) {
 	// Help
 	if(argv.help) {
 		optimist.showHelp();
-		process.exit(-1);
+		process.exit(-1); // eslint-disable-line
 	}
 
 	// Shortcuts
@@ -80,9 +80,22 @@ module.exports = function(optimist, argv, convertOptions) {
 		options = require(configPath);
 	}
 
+	return processConfiguredOptions(options);
+
+	function processConfiguredOptions(options) {
 		if(typeof options !== "object" || options === null) {
 			console.log("Config did not export an object.");
-		process.exit(-1);
+			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"]);
 		}
 
 		if(Array.isArray(options)) {
@@ -138,6 +151,9 @@ module.exports = function(optimist, argv, convertOptions) {
 			options.watch = true;
 		}
 
+		return options;
+	}
+
 	function processOptions(options) {
 		function ifArg(name, fn, init, finalize) {
 			if(Array.isArray(argv[name])) {
@@ -209,7 +225,7 @@ module.exports = function(optimist, argv, convertOptions) {
 				}
 			} catch(e) {
 				console.log("Invalid plugin arguments " + name + " (" + e + ").");
-				process.exit(-1);
+				process.exit(-1); // eslint-disable-line
 			}
 
 			var path;
@@ -217,7 +233,7 @@ module.exports = function(optimist, argv, convertOptions) {
 				path = resolve.sync(process.cwd(), name);
 			} catch(e) {
 				console.log("Cannot resolve plugin " + name + ".");
-				process.exit(-1);
+				process.exit(-1); // eslint-disable-line
 			}
 			var Plugin;
 			try {
@@ -516,7 +532,7 @@ module.exports = function(optimist, argv, convertOptions) {
 			} else {
 				optimist.showHelp();
 				console.error("Output filename not configured.");
-				process.exit(-1);
+				process.exit(-1); // eslint-disable-line
 			}
 		}
 
@@ -553,8 +569,5 @@ module.exports = function(optimist, argv, convertOptions) {
 				}
 			});
 		}
-
 	}
-
-	return options;
 };

bin/webpack.js

@@ -48,37 +48,47 @@ function ifArg(name, fn, init) {
 	}
 }
 
-var firstOptions = Array.isArray(options) ? options[0] : options;
+function processOptions(options) {
+	// process Promise
+	if(typeof options.then === "function") {
+		options.then(processOptions).catch(function(err) {
+			console.error(err.stack || err);
+			process.exit(); // eslint-disable-line
+		});
+		return;
+	}
 
-var outputOptions = Object.create(options.stats || firstOptions.stats || {});
+	var firstOptions = Array.isArray(options) ? options[0] : options;
-if(typeof outputOptions.context === "undefined")
+
+	var outputOptions = Object.create(options.stats || firstOptions.stats || {});
+	if(typeof outputOptions.context === "undefined")
 		outputOptions.context = firstOptions.context;
 
-ifArg("json", function(bool) {
+	ifArg("json", function(bool) {
 		if(bool)
 			outputOptions.json = bool;
-});
+	});
 
-if(typeof outputOptions.colors === "undefined")
+	if(typeof outputOptions.colors === "undefined")
 		outputOptions.colors = require("supports-color");
 
-ifArg("sort-modules-by", function(value) {
+	ifArg("sort-modules-by", function(value) {
 		outputOptions.modulesSort = value;
-});
+	});
 
-ifArg("sort-chunks-by", function(value) {
+	ifArg("sort-chunks-by", function(value) {
 		outputOptions.chunksSort = value;
-});
+	});
 
-ifArg("sort-assets-by", function(value) {
+	ifArg("sort-assets-by", function(value) {
 		outputOptions.assetsSort = value;
-});
+	});
 
-ifArg("display-exclude", function(value) {
+	ifArg("display-exclude", function(value) {
 		outputOptions.exclude = value;
-});
+	});
 
-if(!outputOptions.json) {
+	if(!outputOptions.json) {
 		if(typeof outputOptions.cached === "undefined")
 			outputOptions.cached = false;
 		if(typeof outputOptions.cachedAssets === "undefined")
@@ -113,7 +123,7 @@ if(!outputOptions.json) {
 
 		if(!outputOptions.exclude && !argv["display-modules"])
 			outputOptions.exclude = ["node_modules", "bower_components", "jam", "components"];
-} else {
+	} else {
 		if(typeof outputOptions.chunks === "undefined")
 			outputOptions.chunks = true;
 		if(typeof outputOptions.modules === "undefined")
@@ -126,22 +136,22 @@ if(!outputOptions.json) {
 			outputOptions.cached = true;
 		if(typeof outputOptions.cachedAssets === "undefined")
 			outputOptions.cachedAssets = true;
-}
+	}
 
-ifArg("hide-modules", function(bool) {
+	ifArg("hide-modules", function(bool) {
 		if(bool) {
 			outputOptions.modules = false;
 			outputOptions.chunkModules = false;
 		}
-});
+	});
 
-var webpack = require("../lib/webpack.js");
+	var webpack = require("../lib/webpack.js");
 
-Error.stackTraceLimit = 30;
+	Error.stackTraceLimit = 30;
-var lastHash = null;
+	var lastHash = null;
-var compiler = webpack(options);
+	var compiler = webpack(options);
 
-function compilerCallback(err, stats) {
+	function compilerCallback(err, stats) {
 		if(!options.watch) {
 			// Do not keep cache anymore
 			compiler.purgeInputFileSystem();
@@ -152,7 +162,7 @@ function compilerCallback(err, stats) {
 			if(err.details) console.error(err.details);
 			if(!options.watch) {
 				process.on("exit", function() {
-				process.exit(1);
+					process.exit(1); // eslint-disable-line
 				});
 			}
 			return;
@@ -163,16 +173,20 @@ function compilerCallback(err, stats) {
 			lastHash = stats.hash;
 			process.stdout.write(stats.toString(outputOptions) + "\n");
 		}
-}
+	}
-if(options.watch) {
+	if(options.watch) {
 		var primaryOptions = !Array.isArray(options) ? options : options[0];
 		var watchOptions = primaryOptions.watchOptions || primaryOptions.watch || {};
 		if(watchOptions.stdin) {
 			process.stdin.on('end', function() {
-			process.exit(0)
+				process.exit(0); // eslint-disable-line
 			});
 			process.stdin.resume();
 		}
 		compiler.watch(watchOptions, compilerCallback);
-} else
+	} else
 		compiler.run(compilerCallback);
+
+}
+
+processOptions(options);

test/browsertest/library2config.coffee

@@ -1,5 +1,7 @@
 webpack = require("../../");
-module.exports =
+exports.default = new Promise (resolve, reject) ->
+	resolveIt = ->
+		resolve
 			output:
 				hashDigestLength: 5
 			module:
@@ -19,7 +21,7 @@ module.exports =
 				new webpack.DefinePlugin
 					"typeof CONST_TYPEOF": JSON.stringify("typeof"),
 					CONST_UNDEFINED: undefined,
-			CONST_NULL: null,
+					CONST_NULL: "null",
 					CONST_TRUE: true,
 					CONST_FALSE: false,
 					CONST_FUNCTION: -> return "ok";
@@ -38,3 +40,4 @@ module.exports =
 							data.resource = data.resource.replace /extra\.js/, "extra2.js";
 							callback null, data;
 			]
+	setTimeout resolveIt, 300