WIP - add extractor, generate snippet_data

node_modules/enhanced-resolve/LICENSE

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+Copyright JS Foundation and other contributors
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

node_modules/enhanced-resolve/README.md

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+# enhanced-resolve
+
+Offers an async require.resolve function. It's highly configurable.
+
+## Features
+
+* plugin system
+* provide a custom filesystem
+* sync and async node.js filesystems included
+
+
+## Getting Started
+### Install
+```sh
+# npm
+npm install enhanced-resolve
+# or Yarn
+yarn add enhanced-resolve
+```
+
+### Creating a Resolver
+The easiest way to create a resolver is to use the `createResolver` function on `ResolveFactory`, along with one of the supplied File System implementations.
+```js
+const {
+  NodeJsInputFileSystem,
+  CachedInputFileSystem,
+  ResolverFactory
+} = require('enhanced-resolve');
+
+// create a resolver
+const myResolver = ResolverFactory.createResolver({
+  // Typical usage will consume the `NodeJsInputFileSystem` + `CachedInputFileSystem`, which wraps the Node.js `fs` wrapper to add resilience + caching.
+  fileSystem: new CachedInputFileSystem(new NodeJsInputFileSystem(), 4000),
+  extensions: ['.js', '.json']
+  /* any other resolver options here. Options/defaults can be seen below */
+});
+
+// resolve a file with the new resolver
+const context = {};
+const resolveContext = {};
+const lookupStartPath = '/Users/webpack/some/root/dir';
+const request = './path/to-look-up.js';
+myResolver.resolve({}, lookupStartPath, request, resolveContext, (err/*Error*/, filepath/*string*/) => {
+  // Do something with the path
+});
+```
+
+For more examples creating different types resolvers (sync/async, context, etc) see `lib/node.js`.
+#### Resolver Options
+| Field                    | Default                     | Description                                                                        |
+| ------------------------ | --------------------------- | ---------------------------------------------------------------------------------- |
+| alias                    | []                          | A list of module alias configurations or an object which maps key to value |
+| aliasFields              | []                          | A list of alias fields in description files |
+| cacheWithContext         | true                        | If unsafe cache is enabled, includes `request.context` in the cache key  |
+| descriptionFiles         | ["package.json"]            | A list of description files to read from |
+| enforceExtension         | false                       | Enforce that a extension from extensions must be used |
+| enforceModuleExtension   | false                       | Enforce that a extension from moduleExtensions must be used |
+| extensions               | [".js", ".json", ".node"]   | A list of extensions which should be tried for files |
+| mainFields               | ["main"]                    | A list of main fields in description files |
+| mainFiles                | ["index"]                   | A list of main files in directories |
+| modules                  | ["node_modules"]            | A list of directories to resolve modules from, can be absolute path or folder name |
+| unsafeCache              | false                       | Use this cache object to unsafely cache the successful requests |
+| plugins                  | []                          | A list of additional resolve plugins which should be applied |
+| symlinks                 | true                        | Whether to resolve symlinks to their symlinked location |
+| cachePredicate           | function() { return true }; | A function which decides whether a request should be cached or not. An object is passed to the function with `path` and `request` properties. |
+| moduleExtensions         | []                          | A list of module extensions which should be tried for modules |
+| resolveToContext         | false                       | Resolve to a context instead of a file |
+| fileSystem               |                             | The file system which should be used |
+| resolver                 | undefined                   | A prepared Resolver to which the plugins are attached |
+
+## Plugins
+Similar to `webpack`, the core of `enhanced-resolve` functionality is implemented as individual plugins that are executed using [`Tapable`](https://github.com/webpack/tapable). These plugins can extend the functionality of the library, adding other ways for files/contexts to be resolved.
+
+A plugin should be a `class` (or its ES5 equivalent) with an `apply` method. The `apply` method will receive a `resolver` instance, that can be used to hook in to the event system.
+
+### Plugin Boilerplate
+```js
+class MyResolverPlugin {
+  constructor(source, target) {
+    this.source = source;
+    this.target = target;
+  }
+
+  apply(resolver) {
+    const target = resolver.ensureHook(this.target);
+    resolver.getHook(this.source).tapAsync("MyResolverPlugin", (request, resolveContext, callback) => {
+      // Any logic you need to create a new `request` can go here
+      resolver.doResolve(target, request, null, resolveContext, callback);
+    });
+  }
+}
+```
+
+Plugins are executed in a pipeline, and register which event they should be executed before/after. In the example above, `source` is the name of the event that starts the pipeline, and `target` is what event this plugin should fire, which is what continues the execution of the pipeline. For an example of how these different plugin events create a chain, see `lib/ResolverFactory.js`, in the `//// pipeline ////` section.
+
+## Tests
+
+``` javascript
+npm test
+```
+
+[![Build Status](https://secure.travis-ci.org/webpack/enhanced-resolve.png?branch=master)](http://travis-ci.org/webpack/enhanced-resolve)
+
+
+## Passing options from webpack
+If you are using `webpack`, and you want to pass custom options to `enhanced-resolve`, the options are passed from the `resolve` key of your webpack configuration e.g.:
+
+```
+resolve: {
+  extensions: ['', '.js', '.jsx'],
+  modules: ['src', 'node_modules'],
+  plugins: [new DirectoryNamedWebpackPlugin()]
+  ...
+},
+```
+
+## License
+
+Copyright (c) 2012-2016 Tobias Koppers
+
+MIT (http://www.opensource.org/licenses/mit-license.php)

node_modules/enhanced-resolve/lib/AliasFieldPlugin.js

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const DescriptionFileUtils = require("./DescriptionFileUtils");
+const getInnerRequest = require("./getInnerRequest");
+
+module.exports = class AliasFieldPlugin {
+	constructor(source, field, target) {
+		this.source = source;
+		this.field = field;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("AliasFieldPlugin", (request, resolveContext, callback) => {
+			if(!request.descriptionFileData) return callback();
+			const innerRequest = getInnerRequest(resolver, request);
+			if(!innerRequest) return callback();
+			const fieldData = DescriptionFileUtils.getField(request.descriptionFileData, this.field);
+			if(typeof fieldData !== "object") {
+				if(resolveContext.log) resolveContext.log("Field '" + this.field + "' doesn't contain a valid alias configuration");
+				return callback();
+			}
+			const data1 = fieldData[innerRequest];
+			const data2 = fieldData[innerRequest.replace(/^\.\//, "")];
+			const data = typeof data1 !== "undefined" ? data1 : data2;
+			if(data === innerRequest) return callback();
+			if(data === undefined) return callback();
+			if(data === false) {
+				const ignoreObj = Object.assign({}, request, {
+					path: false
+				});
+				return callback(null, ignoreObj);
+			}
+			const obj = Object.assign({}, request, {
+				path: request.descriptionFileRoot,
+				request: data
+			});
+			resolver.doResolve(target, obj, "aliased from description file " + request.descriptionFilePath + " with mapping '" + innerRequest + "' to '" + data + "'", resolveContext, (err, result) => {
+				if(err) return callback(err);
+
+				// Don't allow other aliasing or raw request
+				if(result === undefined) return callback(null, null);
+				callback(null, result);
+			});
+		});
+	}
+};

node_modules/enhanced-resolve/lib/AliasPlugin.js

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+function startsWith(string, searchString) {
+	const stringLength = string.length;
+	const searchLength = searchString.length;
+
+	// early out if the search length is greater than the search string
+	if(searchLength > stringLength) {
+		return false;
+	}
+	let index = -1;
+	while(++index < searchLength) {
+		if(string.charCodeAt(index) !== searchString.charCodeAt(index)) {
+			return false;
+		}
+	}
+	return true;
+}
+
+module.exports = class AliasPlugin {
+	constructor(source, options, target) {
+		this.source = source;
+		this.options = Array.isArray(options) ? options : [options];
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("AliasPlugin", (request, resolveContext, callback) => {
+			const innerRequest = request.request || request.path;
+			if(!innerRequest) return callback();
+			for(const item of this.options) {
+				if(innerRequest === item.name || (!item.onlyModule && startsWith(innerRequest, item.name + "/"))) {
+					if(innerRequest !== item.alias && !startsWith(innerRequest, item.alias + "/")) {
+						const newRequestStr = item.alias + innerRequest.substr(item.name.length);
+						const obj = Object.assign({}, request, {
+							request: newRequestStr
+						});
+						return resolver.doResolve(target, obj, "aliased with mapping '" + item.name + "': '" + item.alias + "' to '" + newRequestStr + "'", resolveContext, (err, result) => {
+							if(err) return callback(err);
+
+							// Don't allow other aliasing or raw request
+							if(result === undefined) return callback(null, null);
+							callback(null, result);
+						});
+					}
+				}
+			}
+			return callback();
+		});
+	}
+};

node_modules/enhanced-resolve/lib/AppendPlugin.js

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = class AppendPlugin {
+	constructor(source, appending, target) {
+		this.source = source;
+		this.appending = appending;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("AppendPlugin", (request, resolveContext, callback) => {
+			const obj = Object.assign({}, request, {
+				path: request.path + this.appending,
+				relativePath: request.relativePath && (request.relativePath + this.appending)
+			});
+			resolver.doResolve(target, obj, this.appending, resolveContext, callback);
+		});
+	}
+};

node_modules/enhanced-resolve/lib/CachedInputFileSystem.js

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+class Storage {
+	constructor(duration) {
+		this.duration = duration;
+		this.running = new Map();
+		this.data = new Map();
+		this.levels = [];
+		if(duration > 0) {
+			this.levels.push(new Set(), new Set(), new Set(), new Set(), new Set(), new Set(), new Set(), new Set(), new Set());
+			for(let i = 8000; i < duration; i += 500)
+				this.levels.push(new Set());
+		}
+		this.count = 0;
+		this.interval = null;
+		this.needTickCheck = false;
+		this.nextTick = null;
+		this.passive = true;
+		this.tick = this.tick.bind(this);
+	}
+
+	ensureTick() {
+		if(!this.interval && this.duration > 0 && !this.nextTick)
+			this.interval = setInterval(this.tick, Math.floor(this.duration / this.levels.length));
+	}
+
+	finished(name, err, result) {
+		const callbacks = this.running.get(name);
+		this.running.delete(name);
+		if(this.duration > 0) {
+			this.data.set(name, [err, result]);
+			const levelData = this.levels[0];
+			this.count -= levelData.size;
+			levelData.add(name);
+			this.count += levelData.size;
+			this.ensureTick();
+		}
+		for(let i = 0; i < callbacks.length; i++) {
+			callbacks[i](err, result);
+		}
+	}
+
+	finishedSync(name, err, result) {
+		if(this.duration > 0) {
+			this.data.set(name, [err, result]);
+			const levelData = this.levels[0];
+			this.count -= levelData.size;
+			levelData.add(name);
+			this.count += levelData.size;
+			this.ensureTick();
+		}
+	}
+
+	provide(name, provider, callback) {
+		if(typeof name !== "string") {
+			callback(new TypeError("path must be a string"));
+			return;
+		}
+		let running = this.running.get(name);
+		if(running) {
+			running.push(callback);
+			return;
+		}
+		if(this.duration > 0) {
+			this.checkTicks();
+			const data = this.data.get(name);
+			if(data) {
+				return process.nextTick(() => {
+					callback.apply(null, data);
+				});
+			}
+		}
+		this.running.set(name, running = [callback]);
+		provider(name, (err, result) => {
+			this.finished(name, err, result);
+		});
+	}
+
+	provideSync(name, provider) {
+		if(typeof name !== "string") {
+			throw new TypeError("path must be a string");
+		}
+		if(this.duration > 0) {
+			this.checkTicks();
+			const data = this.data.get(name);
+			if(data) {
+				if(data[0])
+					throw data[0];
+				return data[1];
+			}
+		}
+		let result;
+		try {
+			result = provider(name);
+		} catch(e) {
+			this.finishedSync(name, e);
+			throw e;
+		}
+		this.finishedSync(name, null, result);
+		return result;
+	}
+
+	tick() {
+		const decay = this.levels.pop();
+		for(let item of decay) {
+			this.data.delete(item);
+		}
+		this.count -= decay.size;
+		decay.clear();
+		this.levels.unshift(decay);
+		if(this.count === 0) {
+			clearInterval(this.interval);
+			this.interval = null;
+			this.nextTick = null;
+			return true;
+		} else if(this.nextTick) {
+			this.nextTick += Math.floor(this.duration / this.levels.length);
+			const time = new Date().getTime();
+			if(this.nextTick > time) {
+				this.nextTick = null;
+				this.interval = setInterval(this.tick, Math.floor(this.duration / this.levels.length));
+				return true;
+			}
+		} else if(this.passive) {
+			clearInterval(this.interval);
+			this.interval = null;
+			this.nextTick = new Date().getTime() + Math.floor(this.duration / this.levels.length);
+		} else {
+			this.passive = true;
+		}
+	}
+
+	checkTicks() {
+		this.passive = false;
+		if(this.nextTick) {
+			while(!this.tick());
+		}
+	}
+
+	purge(what) {
+		if(!what) {
+			this.count = 0;
+			clearInterval(this.interval);
+			this.nextTick = null;
+			this.data.clear();
+			this.levels.forEach(level => {
+				level.clear();
+			});
+		} else if(typeof what === "string") {
+			for(let key of this.data.keys()) {
+				if(key.startsWith(what))
+					this.data.delete(key);
+			}
+		} else {
+			for(let i = what.length - 1; i >= 0; i--) {
+				this.purge(what[i]);
+			}
+		}
+	}
+}
+
+module.exports = class CachedInputFileSystem {
+	constructor(fileSystem, duration) {
+		this.fileSystem = fileSystem;
+		this._statStorage = new Storage(duration);
+		this._readdirStorage = new Storage(duration);
+		this._readFileStorage = new Storage(duration);
+		this._readJsonStorage = new Storage(duration);
+		this._readlinkStorage = new Storage(duration);
+
+		this._stat = this.fileSystem.stat ? this.fileSystem.stat.bind(this.fileSystem) : null;
+		if(!this._stat) this.stat = null;
+
+		this._statSync = this.fileSystem.statSync ? this.fileSystem.statSync.bind(this.fileSystem) : null;
+		if(!this._statSync) this.statSync = null;
+
+		this._readdir = this.fileSystem.readdir ? this.fileSystem.readdir.bind(this.fileSystem) : null;
+		if(!this._readdir) this.readdir = null;
+
+		this._readdirSync = this.fileSystem.readdirSync ? this.fileSystem.readdirSync.bind(this.fileSystem) : null;
+		if(!this._readdirSync) this.readdirSync = null;
+
+		this._readFile = this.fileSystem.readFile ? this.fileSystem.readFile.bind(this.fileSystem) : null;
+		if(!this._readFile) this.readFile = null;
+
+		this._readFileSync = this.fileSystem.readFileSync ? this.fileSystem.readFileSync.bind(this.fileSystem) : null;
+		if(!this._readFileSync) this.readFileSync = null;
+
+		if(this.fileSystem.readJson) {
+			this._readJson = this.fileSystem.readJson.bind(this.fileSystem);
+		} else if(this.readFile) {
+			this._readJson = (path, callback) => {
+				this.readFile(path, (err, buffer) => {
+					if(err) return callback(err);
+					let data;
+					try {
+						data = JSON.parse(buffer.toString("utf-8"));
+					} catch(e) {
+						return callback(e);
+					}
+					callback(null, data);
+				});
+			};
+		} else {
+			this.readJson = null;
+		}
+		if(this.fileSystem.readJsonSync) {
+			this._readJsonSync = this.fileSystem.readJsonSync.bind(this.fileSystem);
+		} else if(this.readFileSync) {
+			this._readJsonSync = (path) => {
+				const buffer = this.readFileSync(path);
+				const data = JSON.parse(buffer.toString("utf-8"));
+				return data;
+			};
+		} else {
+			this.readJsonSync = null;
+		}
+
+		this._readlink = this.fileSystem.readlink ? this.fileSystem.readlink.bind(this.fileSystem) : null;
+		if(!this._readlink) this.readlink = null;
+
+		this._readlinkSync = this.fileSystem.readlinkSync ? this.fileSystem.readlinkSync.bind(this.fileSystem) : null;
+		if(!this._readlinkSync) this.readlinkSync = null;
+	}
+
+	stat(path, callback) {
+		this._statStorage.provide(path, this._stat, callback);
+	}
+
+	readdir(path, callback) {
+		this._readdirStorage.provide(path, this._readdir, callback);
+	}
+
+	readFile(path, callback) {
+		this._readFileStorage.provide(path, this._readFile, callback);
+	}
+
+	readJson(path, callback) {
+		this._readJsonStorage.provide(path, this._readJson, callback);
+	}
+
+	readlink(path, callback) {
+		this._readlinkStorage.provide(path, this._readlink, callback);
+	}
+
+	statSync(path) {
+		return this._statStorage.provideSync(path, this._statSync);
+	}
+
+	readdirSync(path) {
+		return this._readdirStorage.provideSync(path, this._readdirSync);
+	}
+
+	readFileSync(path) {
+		return this._readFileStorage.provideSync(path, this._readFileSync);
+	}
+
+	readJsonSync(path) {
+		return this._readJsonStorage.provideSync(path, this._readJsonSync);
+	}
+
+	readlinkSync(path) {
+		return this._readlinkStorage.provideSync(path, this._readlinkSync);
+	}
+
+	purge(what) {
+		this._statStorage.purge(what);
+		this._readdirStorage.purge(what);
+		this._readFileStorage.purge(what);
+		this._readlinkStorage.purge(what);
+		this._readJsonStorage.purge(what);
+	}
+};

node_modules/enhanced-resolve/lib/CloneBasenamePlugin.js

@@ -0,0 +1,27 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const basename = require("./getPaths").basename;
+
+module.exports = class CloneBasenamePlugin {
+	constructor(source, target) {
+		this.source = source;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("CloneBasenamePlugin", (request, resolveContext, callback) => {
+			const filename = basename(request.path);
+			const filePath = resolver.join(request.path, filename);
+			const obj = Object.assign({}, request, {
+				path: filePath,
+				relativePath: request.relativePath && resolver.join(request.relativePath, filename)
+			});
+			resolver.doResolve(target, obj, "using path: " + filePath, resolveContext, callback);
+		});
+	}
+};

node_modules/enhanced-resolve/lib/ConcordExtensionsPlugin.js

@@ -0,0 +1,40 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const concord = require("./concord");
+const DescriptionFileUtils = require("./DescriptionFileUtils");
+const forEachBail = require("./forEachBail");
+
+module.exports = class ConcordExtensionsPlugin {
+	constructor(source, options, target) {
+		this.source = source;
+		this.options = options;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("ConcordExtensionsPlugin", (request, resolveContext, callback) => {
+			const concordField = DescriptionFileUtils.getField(request.descriptionFileData, "concord");
+			if(!concordField) return callback();
+			const extensions = concord.getExtensions(request.context, concordField);
+			if(!extensions) return callback();
+			forEachBail(extensions, (appending, callback) => {
+				const obj = Object.assign({}, request, {
+					path: request.path + appending,
+					relativePath: request.relativePath && (request.relativePath + appending)
+				});
+				resolver.doResolve(target, obj, "concord extension: " + appending, resolveContext, callback);
+			}, (err, result) => {
+				if(err) return callback(err);
+
+				// Don't allow other processing
+				if(result === undefined) return callback(null, null);
+				callback(null, result);
+			});
+		});
+	}
+};

node_modules/enhanced-resolve/lib/ConcordMainPlugin.js

@@ -0,0 +1,33 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const path = require("path");
+const concord = require("./concord");
+const DescriptionFileUtils = require("./DescriptionFileUtils");
+
+module.exports = class ConcordMainPlugin {
+	constructor(source, options, target) {
+		this.source = source;
+		this.options = options;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("ConcordMainPlugin", (request, resolveContext, callback) => {
+			if(request.path !== request.descriptionFileRoot) return callback();
+			const concordField = DescriptionFileUtils.getField(request.descriptionFileData, "concord");
+			if(!concordField) return callback();
+			const mainModule = concord.getMain(request.context, concordField);
+			if(!mainModule) return callback();
+			const obj = Object.assign({}, request, {
+				request: mainModule
+			});
+			const filename = path.basename(request.descriptionFilePath);
+			return resolver.doResolve(target, obj, "use " + mainModule + " from " + filename, resolveContext, callback);
+		});
+	}
+};

node_modules/enhanced-resolve/lib/ConcordModulesPlugin.js

@@ -0,0 +1,47 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const concord = require("./concord");
+const DescriptionFileUtils = require("./DescriptionFileUtils");
+const getInnerRequest = require("./getInnerRequest");
+
+module.exports = class ConcordModulesPlugin {
+	constructor(source, options, target) {
+		this.source = source;
+		this.options = options;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("ConcordModulesPlugin", (request, resolveContext, callback) => {
+			const innerRequest = getInnerRequest(resolver, request);
+			if(!innerRequest) return callback();
+			const concordField = DescriptionFileUtils.getField(request.descriptionFileData, "concord");
+			if(!concordField) return callback();
+			const data = concord.matchModule(request.context, concordField, innerRequest);
+			if(data === innerRequest) return callback();
+			if(data === undefined) return callback();
+			if(data === false) {
+				const ignoreObj = Object.assign({}, request, {
+					path: false
+				});
+				return callback(null, ignoreObj);
+			}
+			const obj = Object.assign({}, request, {
+				path: request.descriptionFileRoot,
+				request: data
+			});
+			resolver.doResolve(target, obj, "aliased from description file " + request.descriptionFilePath + " with mapping '" + innerRequest + "' to '" + data + "'", resolveContext, (err, result) => {
+				if(err) return callback(err);
+
+				// Don't allow other aliasing or raw request
+				if(result === undefined) return callback(null, null);
+				callback(null, result);
+			});
+		});
+	}
+};

node_modules/enhanced-resolve/lib/DescriptionFilePlugin.js

@@ -0,0 +1,48 @@
+/*
+MIT License http://www.opensource.org/licenses/mit-license.php
+Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const DescriptionFileUtils = require("./DescriptionFileUtils");
+
+module.exports = class DescriptionFilePlugin {
+	constructor(source, filenames, target) {
+		this.source = source;
+		this.filenames = [].concat(filenames);
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("DescriptionFilePlugin", (request, resolveContext, callback) => {
+			const directory = request.path;
+			DescriptionFileUtils.loadDescriptionFile(resolver, directory, this.filenames, resolveContext, (err, result) => {
+				if(err) return callback(err);
+				if(!result) {
+					if(resolveContext.missing) {
+						this.filenames.forEach((filename) => {
+							resolveContext.missing.add(resolver.join(directory, filename));
+						});
+					}
+					if(resolveContext.log) resolveContext.log("No description file found");
+					return callback();
+				}
+				const relativePath = "." + request.path.substr(result.directory.length).replace(/\\/g, "/");
+				const obj = Object.assign({}, request, {
+					descriptionFilePath: result.path,
+					descriptionFileData: result.content,
+					descriptionFileRoot: result.directory,
+					relativePath: relativePath
+				});
+				resolver.doResolve(target, obj, "using description file: " + result.path + " (relative path: " + relativePath + ")", resolveContext, (err, result) => {
+					if(err) return callback(err);
+
+					// Don't allow other processing
+					if(result === undefined) return callback(null, null);
+					callback(null, result);
+				});
+			});
+		});
+	}
+};

node_modules/enhanced-resolve/lib/DescriptionFileUtils.js

@@ -0,0 +1,96 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const forEachBail = require("./forEachBail");
+
+function loadDescriptionFile(resolver, directory, filenames, resolveContext, callback) {
+	(function findDescriptionFile() {
+		forEachBail(filenames, (filename, callback) => {
+			const descriptionFilePath = resolver.join(directory, filename);
+			if(resolver.fileSystem.readJson) {
+				resolver.fileSystem.readJson(descriptionFilePath, (err, content) => {
+					if(err) {
+						if(typeof err.code !== "undefined") return callback();
+						return onJson(err);
+					}
+					onJson(null, content);
+				});
+			} else {
+				resolver.fileSystem.readFile(descriptionFilePath, (err, content) => {
+					if(err) return callback();
+					let json;
+					try {
+						json = JSON.parse(content);
+					} catch(e) {
+						onJson(e);
+					}
+					onJson(null, json);
+				});
+			}
+
+			function onJson(err, content) {
+				if(err) {
+					if(resolveContext.log)
+						resolveContext.log(descriptionFilePath + " (directory description file): " + err);
+					else
+						err.message = descriptionFilePath + " (directory description file): " + err;
+					return callback(err);
+				}
+				callback(null, {
+					content: content,
+					directory: directory,
+					path: descriptionFilePath
+				});
+			}
+		}, (err, result) => {
+			if(err) return callback(err);
+			if(result) {
+				return callback(null, result);
+			} else {
+				directory = cdUp(directory);
+				if(!directory) {
+					return callback();
+				} else {
+					return findDescriptionFile();
+				}
+			}
+		});
+	}());
+}
+
+function getField(content, field) {
+	if(!content) return undefined;
+	if(Array.isArray(field)) {
+		let current = content;
+		for(let j = 0; j < field.length; j++) {
+			if(current === null || typeof current !== "object") {
+				current = null;
+				break;
+			}
+			current = current[field[j]];
+		}
+		if(typeof current === "object") {
+			return current;
+		}
+	} else {
+		if(typeof content[field] === "object") {
+			return content[field];
+		}
+	}
+}
+
+function cdUp(directory) {
+	if(directory === "/") return null;
+	const i = directory.lastIndexOf("/"),
+		j = directory.lastIndexOf("\\");
+	const p = i < 0 ? j : j < 0 ? i : i < j ? j : i;
+	if(p < 0) return null;
+	return directory.substr(0, p || 1);
+}
+
+exports.loadDescriptionFile = loadDescriptionFile;
+exports.getField = getField;
+exports.cdUp = cdUp;

node_modules/enhanced-resolve/lib/DirectoryExistsPlugin.js

@@ -0,0 +1,33 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = class DirectoryExistsPlugin {
+	constructor(source, target) {
+		this.source = source;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("DirectoryExistsPlugin", (request, resolveContext, callback) => {
+			const fs = resolver.fileSystem;
+			const directory = request.path;
+			fs.stat(directory, (err, stat) => {
+				if(err || !stat) {
+					if(resolveContext.missing) resolveContext.missing.add(directory);
+					if(resolveContext.log) resolveContext.log(directory + " doesn't exist");
+					return callback();
+				}
+				if(!stat.isDirectory()) {
+					if(resolveContext.missing) resolveContext.missing.add(directory);
+					if(resolveContext.log) resolveContext.log(directory + " is not a directory");
+					return callback();
+				}
+				resolver.doResolve(target, request, "existing directory", resolveContext, callback);
+			});
+		});
+	}
+};

node_modules/enhanced-resolve/lib/FileExistsPlugin.js

@@ -0,0 +1,33 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = class FileExistsPlugin {
+	constructor(source, target) {
+		this.source = source;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		const fs = resolver.fileSystem;
+		resolver.getHook(this.source).tapAsync("FileExistsPlugin", (request, resolveContext, callback) => {
+			const file = request.path;
+			fs.stat(file, (err, stat) => {
+				if(err || !stat) {
+					if(resolveContext.missing) resolveContext.missing.add(file);
+					if(resolveContext.log) resolveContext.log(file + " doesn't exist");
+					return callback();
+				}
+				if(!stat.isFile()) {
+					if(resolveContext.missing) resolveContext.missing.add(file);
+					if(resolveContext.log) resolveContext.log(file + " is not a file");
+					return callback();
+				}
+				resolver.doResolve(target, request, "existing file: " + file, resolveContext, callback);
+			});
+		});
+	}
+};

node_modules/enhanced-resolve/lib/FileKindPlugin.js

@@ -0,0 +1,22 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = class FileKindPlugin {
+	constructor(source, target) {
+		this.source = source;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("FileKindPlugin", (request, resolveContext, callback) => {
+			if(request.directory) return callback();
+			const obj = Object.assign({}, request);
+			delete obj.directory;
+			resolver.doResolve(target, obj, null, resolveContext, callback);
+		});
+	}
+};

node_modules/enhanced-resolve/lib/JoinRequestPlugin.js

@@ -0,0 +1,24 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = class JoinRequestPlugin {
+	constructor(source, target) {
+		this.source = source;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("JoinRequestPlugin", (request, resolveContext, callback) => {
+			const obj = Object.assign({}, request, {
+				path: resolver.join(request.path, request.request),
+				relativePath: request.relativePath && resolver.join(request.relativePath, request.request),
+				request: undefined
+			});
+			resolver.doResolve(target, obj, null, resolveContext, callback);
+		});
+	}
+};

node_modules/enhanced-resolve/lib/LogInfoPlugin.js

@@ -0,0 +1,28 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = class LogInfoPlugin {
+	constructor(source) {
+		this.source = source;
+	}
+
+	apply(resolver) {
+		const source = this.source;
+		resolver.getHook(this.source).tapAsync("LogInfoPlugin", (request, resolveContext, callback) => {
+			if(!resolveContext.log) return callback();
+			const log = resolveContext.log;
+			const prefix = "[" + source + "] ";
+			if(request.path) log(prefix + "Resolving in directory: " + request.path);
+			if(request.request) log(prefix + "Resolving request: " + request.request);
+			if(request.module) log(prefix + "Request is an module request.");
+			if(request.directory) log(prefix + "Request is a directory request.");
+			if(request.query) log(prefix + "Resolving request query: " + request.query);
+			if(request.descriptionFilePath) log(prefix + "Has description data from " + request.descriptionFilePath);
+			if(request.relativePath) log(prefix + "Relative path from description file is: " + request.relativePath);
+			callback();
+		});
+	}
+};

node_modules/enhanced-resolve/lib/MainFieldPlugin.js

@@ -0,0 +1,52 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const path = require("path");
+
+module.exports = class MainFieldPlugin {
+	constructor(source, options, target) {
+		this.source = source;
+		this.options = options;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("MainFieldPlugin", (request, resolveContext, callback) => {
+			if(request.path !== request.descriptionFileRoot) return callback();
+			if(request.alreadyTriedMainField === request.descriptionFilePath) return callback();
+			const content = request.descriptionFileData;
+			const filename = path.basename(request.descriptionFilePath);
+			let mainModule;
+			const field = this.options.name;
+			if(Array.isArray(field)) {
+				let current = content;
+				for(let j = 0; j < field.length; j++) {
+					if(current === null || typeof current !== "object") {
+						current = null;
+						break;
+					}
+					current = current[field[j]];
+				}
+				if(typeof current === "string") {
+					mainModule = current;
+				}
+			} else {
+				if(typeof content[field] === "string") {
+					mainModule = content[field];
+				}
+			}
+			if(!mainModule) return callback();
+			if(this.options.forceRelative && !/^\.\.?\//.test(mainModule))
+				mainModule = "./" + mainModule;
+			const obj = Object.assign({}, request, {
+				request: mainModule,
+				alreadyTriedMainField: request.descriptionFilePath
+			});
+			return resolver.doResolve(target, obj, "use " + mainModule + " from " + this.options.name + " in " + filename, resolveContext, callback);
+		});
+	}
+};

node_modules/enhanced-resolve/lib/ModuleAppendPlugin.js

@@ -0,0 +1,37 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = class ModuleAppendPlugin {
+	constructor(source, appending, target) {
+		this.source = source;
+		this.appending = appending;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("ModuleAppendPlugin", (request, resolveContext, callback) => {
+			const i = request.request.indexOf("/"),
+				j = request.request.indexOf("\\");
+			const p = i < 0 ? j : j < 0 ? i : i < j ? i : j;
+			let moduleName, remainingRequest;
+			if(p < 0) {
+				moduleName = request.request;
+				remainingRequest = "";
+			} else {
+				moduleName = request.request.substr(0, p);
+				remainingRequest = request.request.substr(p);
+			}
+			if(moduleName === "." || moduleName === "..")
+				return callback();
+			const moduleFinalName = moduleName + this.appending;
+			const obj = Object.assign({}, request, {
+				request: moduleFinalName + remainingRequest
+			});
+			resolver.doResolve(target, obj, "module variation " + moduleFinalName, resolveContext, callback);
+		});
+	}
+};

node_modules/enhanced-resolve/lib/ModuleKindPlugin.js

@@ -0,0 +1,28 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = class ModuleKindPlugin {
+	constructor(source, target) {
+		this.source = source;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("ModuleKindPlugin", (request, resolveContext, callback) => {
+			if(!request.module) return callback();
+			const obj = Object.assign({}, request);
+			delete obj.module;
+			resolver.doResolve(target, obj, "resolve as module", resolveContext, (err, result) => {
+				if(err) return callback(err);
+
+				// Don't allow other alternatives
+				if(result === undefined) return callback(null, null);
+				callback(null, result);
+			});
+		});
+	}
+};

node_modules/enhanced-resolve/lib/ModulesInHierachicDirectoriesPlugin.js

@@ -0,0 +1,44 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const forEachBail = require("./forEachBail");
+const getPaths = require("./getPaths");
+
+module.exports = class ModulesInHierachicDirectoriesPlugin {
+	constructor(source, directories, target) {
+		this.source = source;
+		this.directories = [].concat(directories);
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("ModulesInHierachicDirectoriesPlugin", (request, resolveContext, callback) => {
+			const fs = resolver.fileSystem;
+			const addrs = getPaths(request.path).paths.map(p => {
+				return this.directories.map(d => resolver.join(p, d));
+			}).reduce((array, p) => {
+				array.push.apply(array, p);
+				return array;
+			}, []);
+			forEachBail(addrs, (addr, callback) => {
+				fs.stat(addr, (err, stat) => {
+					if(!err && stat && stat.isDirectory()) {
+						const obj = Object.assign({}, request, {
+							path: addr,
+							request: "./" + request.request
+						});
+						const message = "looking for modules in " + addr;
+						return resolver.doResolve(target, obj, message, resolveContext, callback);
+					}
+					if(resolveContext.log) resolveContext.log(addr + " doesn't exist or is not a directory");
+					if(resolveContext.missing) resolveContext.missing.add(addr);
+					return callback();
+				});
+			}, callback);
+		});
+	}
+};

node_modules/enhanced-resolve/lib/ModulesInRootPlugin.js

@@ -0,0 +1,24 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = class ModulesInRootPlugin {
+	constructor(source, path, target) {
+		this.source = source;
+		this.path = path;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("ModulesInRootPlugin", (request, resolveContext, callback) => {
+			const obj = Object.assign({}, request, {
+				path: this.path,
+				request: "./" + request.request
+			});
+			resolver.doResolve(target, obj, "looking for modules in " + this.path, resolveContext, callback);
+		});
+	}
+};

node_modules/enhanced-resolve/lib/NextPlugin.js

@@ -0,0 +1,19 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = class NextPlugin {
+	constructor(source, target) {
+		this.source = source;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("NextPlugin", (request, resolveContext, callback) => {
+			resolver.doResolve(target, request, null, resolveContext, callback);
+		});
+	}
+};

node_modules/enhanced-resolve/lib/NodeJsInputFileSystem.js

@@ -0,0 +1,43 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const fs = require("graceful-fs");
+
+class NodeJsInputFileSystem {
+	readdir(path, callback) {
+		fs.readdir(path, (err, files) => {
+			callback(err, files && files.map(file => {
+				return file.normalize ? file.normalize("NFC") : file;
+			}));
+		});
+	}
+
+	readdirSync(path) {
+		const files = fs.readdirSync(path);
+		return files && files.map(file => {
+			return file.normalize ? file.normalize("NFC") : file;
+		});
+	}
+}
+
+const fsMethods = [
+	"stat",
+	"statSync",
+	"readFile",
+	"readFileSync",
+	"readlink",
+	"readlinkSync"
+];
+
+for(const key of fsMethods) {
+	Object.defineProperty(NodeJsInputFileSystem.prototype, key, {
+		configurable: true,
+		writable: true,
+		value: fs[key].bind(fs)
+	});
+}
+
+module.exports = NodeJsInputFileSystem;

node_modules/enhanced-resolve/lib/ParsePlugin.js

@@ -0,0 +1,30 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = class ParsePlugin {
+	constructor(source, target) {
+		this.source = source;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("ParsePlugin", (request, resolveContext, callback) => {
+			const parsed = resolver.parse(request.request);
+			const obj = Object.assign({}, request, parsed);
+			if(request.query && !parsed.query) {
+				obj.query = request.query;
+			}
+			if(parsed && resolveContext.log) {
+				if(parsed.module)
+					resolveContext.log("Parsed request is a module");
+				if(parsed.directory)
+					resolveContext.log("Parsed request is a directory");
+			}
+			resolver.doResolve(target, obj, null, resolveContext, callback);
+		});
+	}
+};

node_modules/enhanced-resolve/lib/Resolver.js

@@ -0,0 +1,301 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const util = require("util");
+
+const Tapable = require("tapable/lib/Tapable");
+const SyncHook = require("tapable/lib/SyncHook");
+const AsyncSeriesBailHook = require("tapable/lib/AsyncSeriesBailHook");
+const AsyncSeriesHook = require("tapable/lib/AsyncSeriesHook");
+const createInnerContext = require("./createInnerContext");
+
+const REGEXP_NOT_MODULE = /^\.$|^\.[\\\/]|^\.\.$|^\.\.[\/\\]|^\/|^[A-Z]:[\\\/]/i;
+const REGEXP_DIRECTORY = /[\/\\]$/i;
+
+const memoryFsJoin = require("memory-fs/lib/join");
+const memoizedJoin = new Map();
+const memoryFsNormalize = require("memory-fs/lib/normalize");
+
+function withName(name, hook) {
+	hook.name = name;
+	return hook;
+}
+
+function toCamelCase(str) {
+	return str.replace(/-([a-z])/g, str => str.substr(1).toUpperCase());
+}
+
+const deprecatedPushToMissing = util.deprecate((set, item) => {
+	set.add(item);
+}, "Resolver: 'missing' is now a Set. Use add instead of push.");
+
+const deprecatedResolveContextInCallback = util.deprecate((x) => {
+	return x;
+}, "Resolver: The callback argument was splitted into resolveContext and callback.");
+
+const deprecatedHookAsString = util.deprecate((x) => {
+	return x;
+}, "Resolver#doResolve: The type arguments (string) is now a hook argument (Hook). Pass a reference to the hook instead.");
+
+class Resolver extends Tapable {
+	constructor(fileSystem) {
+		super();
+		this.fileSystem = fileSystem;
+		this.hooks = {
+			resolveStep: withName("resolveStep", new SyncHook(["hook", "request"])),
+			noResolve: withName("noResolve", new SyncHook(["request", "error"])),
+			resolve: withName("resolve", new AsyncSeriesBailHook(["request", "resolveContext"])),
+			result: new AsyncSeriesHook(["result", "resolveContext"])
+		};
+		this._pluginCompat.tap("Resolver: before/after", options => {
+			if(/^before-/.test(options.name)) {
+				options.name = options.name.substr(7);
+				options.stage = -10;
+			} else if(/^after-/.test(options.name)) {
+				options.name = options.name.substr(6);
+				options.stage = 10;
+			}
+		});
+		this._pluginCompat.tap("Resolver: step hooks", options => {
+			const name = options.name;
+			const stepHook = !/^resolve(-s|S)tep$|^no(-r|R)esolve$/.test(name);
+			if(stepHook) {
+				options.async = true;
+				this.ensureHook(name);
+				const fn = options.fn;
+				options.fn = (request, resolverContext, callback) => {
+					const innerCallback = (err, result) => {
+						if(err) return callback(err);
+						if(result !== undefined) return callback(null, result);
+						callback();
+					};
+					for(const key in resolverContext) {
+						innerCallback[key] = resolverContext[key];
+					}
+					fn.call(this, request, innerCallback);
+				};
+			}
+		});
+	}
+
+	ensureHook(name) {
+		if(typeof name !== "string") return name;
+		name = toCamelCase(name);
+		if(/^before/.test(name)) {
+			return this.ensureHook(name[6].toLowerCase() + name.substr(7)).withOptions({
+				stage: -10
+			});
+		}
+		if(/^after/.test(name)) {
+			return this.ensureHook(name[5].toLowerCase() + name.substr(6)).withOptions({
+				stage: 10
+			});
+		}
+		const hook = this.hooks[name];
+		if(!hook) {
+			return this.hooks[name] = withName(name, new AsyncSeriesBailHook(["request", "resolveContext"]));
+		}
+		return hook;
+	}
+
+	getHook(name) {
+		if(typeof name !== "string") return name;
+		name = toCamelCase(name);
+		if(/^before/.test(name)) {
+			return this.getHook(name[6].toLowerCase() + name.substr(7)).withOptions({
+				stage: -10
+			});
+		}
+		if(/^after/.test(name)) {
+			return this.getHook(name[5].toLowerCase() + name.substr(6)).withOptions({
+				stage: 10
+			});
+		}
+		const hook = this.hooks[name];
+		if(!hook) {
+			throw new Error(`Hook ${name} doesn't exist`);
+		}
+		return hook;
+	}
+
+	resolveSync(context, path, request) {
+		let err, result, sync = false;
+		this.resolve(context, path, request, {}, (e, r) => {
+			err = e;
+			result = r;
+			sync = true;
+		});
+		if(!sync) throw new Error("Cannot 'resolveSync' because the fileSystem is not sync. Use 'resolve'!");
+		if(err) throw err;
+		return result;
+	}
+
+	resolve(context, path, request, resolveContext, callback) {
+		// TODO remove in enhanced-resolve 5
+		// For backward compatiblity START
+		if(typeof callback !== "function") {
+			callback = deprecatedResolveContextInCallback(resolveContext);
+			// resolveContext is a function containing additional properties
+			// It's now used for resolveContext and callback
+		}
+		// END
+		const obj = {
+			context: context,
+			path: path,
+			request: request
+		};
+
+		const message = "resolve '" + request + "' in '" + path + "'";
+
+		// Try to resolve assuming there is no error
+		// We don't log stuff in this case
+		return this.doResolve(this.hooks.resolve, obj, message, {
+			missing: resolveContext.missing,
+			stack: resolveContext.stack
+		}, (err, result) => {
+			if(!err && result) {
+				return callback(null, result.path === false ? false : result.path + (result.query || ""), result);
+			}
+
+			const localMissing = new Set();
+			// TODO remove in enhanced-resolve 5
+			localMissing.push = item => deprecatedPushToMissing(localMissing, item);
+			const log = [];
+
+			return this.doResolve(this.hooks.resolve, obj, message, {
+				log: msg => {
+					if(resolveContext.log) {
+						resolveContext.log(msg);
+					}
+					log.push(msg);
+				},
+				missing: localMissing,
+				stack: resolveContext.stack
+			}, (err, result) => {
+				if(err) return callback(err);
+
+				const error = new Error("Can't " + message);
+				error.details = log.join("\n");
+				error.missing = Array.from(localMissing);
+				this.hooks.noResolve.call(obj, error);
+				return callback(error);
+			});
+		});
+	}
+
+	doResolve(hook, request, message, resolveContext, callback) {
+		// TODO remove in enhanced-resolve 5
+		// For backward compatiblity START
+		if(typeof callback !== "function") {
+			callback = deprecatedResolveContextInCallback(resolveContext);
+			// resolveContext is a function containing additional properties
+			// It's now used for resolveContext and callback
+		}
+		if(typeof hook === "string") {
+			const name = toCamelCase(hook);
+			hook = deprecatedHookAsString(this.hooks[name]);
+			if(!hook) {
+				throw new Error(`Hook "${name}" doesn't exist`);
+			}
+		}
+		// END
+		if(typeof callback !== "function") throw new Error("callback is not a function " + Array.from(arguments));
+		if(!resolveContext) throw new Error("resolveContext is not an object " + Array.from(arguments));
+
+		const stackLine = hook.name + ": (" + request.path + ") " +
+			(request.request || "") + (request.query || "") +
+			(request.directory ? " directory" : "") +
+			(request.module ? " module" : "");
+
+		let newStack;
+		if(resolveContext.stack) {
+			newStack = new Set(resolveContext.stack);
+			if(resolveContext.stack.has(stackLine)) {
+				// Prevent recursion
+				const recursionError = new Error("Recursion in resolving\nStack:\n  " + Array.from(newStack).join("\n  "));
+				recursionError.recursion = true;
+				if(resolveContext.log) resolveContext.log("abort resolving because of recursion");
+				return callback(recursionError);
+			}
+			newStack.add(stackLine);
+		} else {
+			newStack = new Set([stackLine]);
+		}
+		this.hooks.resolveStep.call(hook, request);
+
+		if(hook.isUsed()) {
+			const innerContext = createInnerContext({
+				log: resolveContext.log,
+				missing: resolveContext.missing,
+				stack: newStack
+			}, message);
+			return hook.callAsync(request, innerContext, (err, result) => {
+				if(err) return callback(err);
+				if(result) return callback(null, result);
+				callback();
+			});
+		} else {
+			callback();
+		}
+	}
+
+	parse(identifier) {
+		if(identifier === "") return null;
+		const part = {
+			request: "",
+			query: "",
+			module: false,
+			directory: false,
+			file: false
+		};
+		const idxQuery = identifier.indexOf("?");
+		if(idxQuery === 0) {
+			part.query = identifier;
+		} else if(idxQuery > 0) {
+			part.request = identifier.slice(0, idxQuery);
+			part.query = identifier.slice(idxQuery);
+		} else {
+			part.request = identifier;
+		}
+		if(part.request) {
+			part.module = this.isModule(part.request);
+			part.directory = this.isDirectory(part.request);
+			if(part.directory) {
+				part.request = part.request.substr(0, part.request.length - 1);
+			}
+		}
+		return part;
+	}
+
+	isModule(path) {
+		return !REGEXP_NOT_MODULE.test(path);
+	}
+
+	isDirectory(path) {
+		return REGEXP_DIRECTORY.test(path);
+	}
+
+	join(path, request) {
+		let cacheEntry;
+		let pathCache = memoizedJoin.get(path);
+		if(typeof pathCache === "undefined") {
+			memoizedJoin.set(path, pathCache = new Map());
+		} else {
+			cacheEntry = pathCache.get(request);
+			if(typeof cacheEntry !== "undefined")
+				return cacheEntry;
+		}
+		cacheEntry = memoryFsJoin(path, request);
+		pathCache.set(request, cacheEntry);
+		return cacheEntry;
+	}
+
+	normalize(path) {
+		return memoryFsNormalize(path);
+	}
+}
+
+module.exports = Resolver;

node_modules/enhanced-resolve/lib/ResolverFactory.js

@@ -0,0 +1,301 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const Resolver = require("./Resolver");
+
+const SyncAsyncFileSystemDecorator = require("./SyncAsyncFileSystemDecorator");
+
+const ParsePlugin = require("./ParsePlugin");
+const DescriptionFilePlugin = require("./DescriptionFilePlugin");
+const NextPlugin = require("./NextPlugin");
+const TryNextPlugin = require("./TryNextPlugin");
+const ModuleKindPlugin = require("./ModuleKindPlugin");
+const FileKindPlugin = require("./FileKindPlugin");
+const JoinRequestPlugin = require("./JoinRequestPlugin");
+const ModulesInHierachicDirectoriesPlugin = require("./ModulesInHierachicDirectoriesPlugin");
+const ModulesInRootPlugin = require("./ModulesInRootPlugin");
+const AliasPlugin = require("./AliasPlugin");
+const AliasFieldPlugin = require("./AliasFieldPlugin");
+const ConcordExtensionsPlugin = require("./ConcordExtensionsPlugin");
+const ConcordMainPlugin = require("./ConcordMainPlugin");
+const ConcordModulesPlugin = require("./ConcordModulesPlugin");
+const DirectoryExistsPlugin = require("./DirectoryExistsPlugin");
+const FileExistsPlugin = require("./FileExistsPlugin");
+const SymlinkPlugin = require("./SymlinkPlugin");
+const MainFieldPlugin = require("./MainFieldPlugin");
+const UseFilePlugin = require("./UseFilePlugin");
+const AppendPlugin = require("./AppendPlugin");
+const ResultPlugin = require("./ResultPlugin");
+const ModuleAppendPlugin = require("./ModuleAppendPlugin");
+const UnsafeCachePlugin = require("./UnsafeCachePlugin");
+
+exports.createResolver = function(options) {
+
+	//// OPTIONS ////
+
+	// A list of directories to resolve modules from, can be absolute path or folder name
+	let modules = options.modules || ["node_modules"];
+
+	// A list of description files to read from
+	const descriptionFiles = options.descriptionFiles || ["package.json"];
+
+	// A list of additional resolve plugins which should be applied
+	// The slice is there to create a copy, because otherwise pushing into plugins
+	// changes the original options.plugins array, causing duplicate plugins
+	const plugins = (options.plugins && options.plugins.slice()) || [];
+
+	// A list of main fields in description files
+	let mainFields = options.mainFields || ["main"];
+
+	// A list of alias fields in description files
+	const aliasFields = options.aliasFields || [];
+
+	// A list of main files in directories
+	const mainFiles = options.mainFiles || ["index"];
+
+	// A list of extensions which should be tried for files
+	let extensions = options.extensions || [".js", ".json", ".node"];
+
+	// Enforce that a extension from extensions must be used
+	const enforceExtension = options.enforceExtension || false;
+
+	// A list of module extensions which should be tried for modules
+	let moduleExtensions = options.moduleExtensions || [];
+
+	// Enforce that a extension from moduleExtensions must be used
+	const enforceModuleExtension = options.enforceModuleExtension || false;
+
+	// A list of module alias configurations or an object which maps key to value
+	let alias = options.alias || [];
+
+	// Resolve symlinks to their symlinked location
+	const symlinks = typeof options.symlinks !== "undefined" ? options.symlinks : true;
+
+	// Resolve to a context instead of a file
+	const resolveToContext = options.resolveToContext || false;
+
+	// Use this cache object to unsafely cache the successful requests
+	let unsafeCache = options.unsafeCache || false;
+
+	// Whether or not the unsafeCache should include request context as part of the cache key.
+	const cacheWithContext = typeof options.cacheWithContext !== "undefined" ? options.cacheWithContext : true;
+
+	// Enable concord description file instructions
+	const enableConcord = options.concord || false;
+
+	// A function which decides whether a request should be cached or not.
+	// an object is passed with `path` and `request` properties.
+	const cachePredicate = options.cachePredicate || function() {
+		return true;
+	};
+
+	// The file system which should be used
+	const fileSystem = options.fileSystem;
+
+	// Use only the sync constiants of the file system calls
+	const useSyncFileSystemCalls = options.useSyncFileSystemCalls;
+
+	// A prepared Resolver to which the plugins are attached
+	let resolver = options.resolver;
+
+	//// options processing ////
+
+	if(!resolver) {
+		resolver = new Resolver(useSyncFileSystemCalls ? new SyncAsyncFileSystemDecorator(fileSystem) : fileSystem);
+	}
+
+	extensions = [].concat(extensions);
+	moduleExtensions = [].concat(moduleExtensions);
+
+	modules = mergeFilteredToArray([].concat(modules), item => {
+		return !isAbsolutePath(item);
+	});
+
+	mainFields = mainFields.map(item => {
+		if(typeof item === "string" || Array.isArray(item)) {
+			item = {
+				name: item,
+				forceRelative: true
+			};
+		}
+		return item;
+	});
+
+	if(typeof alias === "object" && !Array.isArray(alias)) {
+		alias = Object.keys(alias).map(key => {
+			let onlyModule = false;
+			let obj = alias[key];
+			if(/\$$/.test(key)) {
+				onlyModule = true;
+				key = key.substr(0, key.length - 1);
+			}
+			if(typeof obj === "string") {
+				obj = {
+					alias: obj
+				};
+			}
+			obj = Object.assign({
+				name: key,
+				onlyModule: onlyModule
+			}, obj);
+			return obj;
+		});
+	}
+
+	if(unsafeCache && typeof unsafeCache !== "object") {
+		unsafeCache = {};
+	}
+
+	//// pipeline ////
+
+	resolver.ensureHook("resolve");
+	resolver.ensureHook("parsedResolve");
+	resolver.ensureHook("describedResolve");
+	resolver.ensureHook("rawModule");
+	resolver.ensureHook("module");
+	resolver.ensureHook("relative");
+	resolver.ensureHook("describedRelative");
+	resolver.ensureHook("directory");
+	resolver.ensureHook("existingDirectory");
+	resolver.ensureHook("undescribedRawFile");
+	resolver.ensureHook("rawFile");
+	resolver.ensureHook("file");
+	resolver.ensureHook("existingFile");
+	resolver.ensureHook("resolved");
+
+	// resolve
+	if(unsafeCache) {
+		plugins.push(new UnsafeCachePlugin("resolve", cachePredicate, unsafeCache, cacheWithContext, "new-resolve"));
+		plugins.push(new ParsePlugin("new-resolve", "parsed-resolve"));
+	} else {
+		plugins.push(new ParsePlugin("resolve", "parsed-resolve"));
+	}
+
+	// parsed-resolve
+	plugins.push(new DescriptionFilePlugin("parsed-resolve", descriptionFiles, "described-resolve"));
+	plugins.push(new NextPlugin("after-parsed-resolve", "described-resolve"));
+
+	// described-resolve
+	if(alias.length > 0)
+		plugins.push(new AliasPlugin("described-resolve", alias, "resolve"));
+	if(enableConcord) {
+		plugins.push(new ConcordModulesPlugin("described-resolve", {}, "resolve"));
+	}
+	aliasFields.forEach(item => {
+		plugins.push(new AliasFieldPlugin("described-resolve", item, "resolve"));
+	});
+	plugins.push(new ModuleKindPlugin("after-described-resolve", "raw-module"));
+	plugins.push(new JoinRequestPlugin("after-described-resolve", "relative"));
+
+	// raw-module
+	moduleExtensions.forEach(item => {
+		plugins.push(new ModuleAppendPlugin("raw-module", item, "module"));
+	});
+	if(!enforceModuleExtension)
+		plugins.push(new TryNextPlugin("raw-module", null, "module"));
+
+	// module
+	modules.forEach(item => {
+		if(Array.isArray(item))
+			plugins.push(new ModulesInHierachicDirectoriesPlugin("module", item, "resolve"));
+		else
+			plugins.push(new ModulesInRootPlugin("module", item, "resolve"));
+	});
+
+	// relative
+	plugins.push(new DescriptionFilePlugin("relative", descriptionFiles, "described-relative"));
+	plugins.push(new NextPlugin("after-relative", "described-relative"));
+
+	// described-relative
+	plugins.push(new FileKindPlugin("described-relative", "raw-file"));
+	plugins.push(new TryNextPlugin("described-relative", "as directory", "directory"));
+
+	// directory
+	plugins.push(new DirectoryExistsPlugin("directory", "existing-directory"));
+
+	if(resolveToContext) {
+
+		// existing-directory
+		plugins.push(new NextPlugin("existing-directory", "resolved"));
+
+	} else {
+
+		// existing-directory
+		if(enableConcord) {
+			plugins.push(new ConcordMainPlugin("existing-directory", {}, "resolve"));
+		}
+		mainFields.forEach(item => {
+			plugins.push(new MainFieldPlugin("existing-directory", item, "resolve"));
+		});
+		mainFiles.forEach(item => {
+			plugins.push(new UseFilePlugin("existing-directory", item, "undescribed-raw-file"));
+		});
+
+		// undescribed-raw-file
+		plugins.push(new DescriptionFilePlugin("undescribed-raw-file", descriptionFiles, "raw-file"));
+		plugins.push(new NextPlugin("after-undescribed-raw-file", "raw-file"));
+
+		// raw-file
+		if(!enforceExtension) {
+			plugins.push(new TryNextPlugin("raw-file", "no extension", "file"));
+		}
+		if(enableConcord) {
+			plugins.push(new ConcordExtensionsPlugin("raw-file", {}, "file"));
+		}
+		extensions.forEach(item => {
+			plugins.push(new AppendPlugin("raw-file", item, "file"));
+		});
+
+		// file
+		if(alias.length > 0)
+			plugins.push(new AliasPlugin("file", alias, "resolve"));
+		if(enableConcord) {
+			plugins.push(new ConcordModulesPlugin("file", {}, "resolve"));
+		}
+		aliasFields.forEach(item => {
+			plugins.push(new AliasFieldPlugin("file", item, "resolve"));
+		});
+		if(symlinks)
+			plugins.push(new SymlinkPlugin("file", "relative"));
+		plugins.push(new FileExistsPlugin("file", "existing-file"));
+
+		// existing-file
+		plugins.push(new NextPlugin("existing-file", "resolved"));
+
+	}
+
+	// resolved
+	plugins.push(new ResultPlugin(resolver.hooks.resolved));
+
+	//// RESOLVER ////
+
+	plugins.forEach(plugin => {
+		plugin.apply(resolver);
+	});
+
+	return resolver;
+};
+
+function mergeFilteredToArray(array, filter) {
+	return array.reduce((array, item) => {
+		if(filter(item)) {
+			const lastElement = array[array.length - 1];
+			if(Array.isArray(lastElement)) {
+				lastElement.push(item);
+			} else {
+				array.push([item]);
+			}
+			return array;
+		} else {
+			array.push(item);
+			return array;
+		}
+	}, []);
+}
+
+function isAbsolutePath(path) {
+	return /^[A-Z]:|^\//.test(path);
+}

node_modules/enhanced-resolve/lib/ResultPlugin.js

@@ -0,0 +1,22 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = class ResultPlugin {
+	constructor(source) {
+		this.source = source;
+	}
+
+	apply(resolver) {
+		this.source.tapAsync("ResultPlugin", (request, resolverContext, callback) => {
+			const obj = Object.assign({}, request);
+			if(resolverContext.log) resolverContext.log("reporting result " + obj.path);
+			resolver.hooks.result.callAsync(obj, resolverContext, err => {
+				if(err) return callback(err);
+				callback(null, obj);
+			});
+		});
+	}
+};

node_modules/enhanced-resolve/lib/SymlinkPlugin.js

@@ -0,0 +1,49 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const getPaths = require("./getPaths");
+const forEachBail = require("./forEachBail");
+
+module.exports = class SymlinkPlugin {
+	constructor(source, target) {
+		this.source = source;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		const fs = resolver.fileSystem;
+		resolver.getHook(this.source).tapAsync("SymlinkPlugin", (request, resolveContext, callback) => {
+			const pathsResult = getPaths(request.path);
+			const pathSeqments = pathsResult.seqments;
+			const paths = pathsResult.paths;
+
+			let containsSymlink = false;
+			forEachBail.withIndex(paths, (path, idx, callback) => {
+				fs.readlink(path, (err, result) => {
+					if(!err && result) {
+						pathSeqments[idx] = result;
+						containsSymlink = true;
+						// Shortcut when absolute symlink found
+						if(/^(\/|[a-zA-Z]:($|\\))/.test(result))
+							return callback(null, idx);
+					}
+					callback();
+				});
+			}, (err, idx) => {
+				if(!containsSymlink) return callback();
+				const resultSeqments = typeof idx === "number" ? pathSeqments.slice(0, idx + 1) : pathSeqments.slice();
+				const result = resultSeqments.reverse().reduce((a, b) => {
+					return resolver.join(a, b);
+				});
+				const obj = Object.assign({}, request, {
+					path: result
+				});
+				resolver.doResolve(target, obj, "resolved symlink to " + result, resolveContext, callback);
+			});
+		});
+	}
+};

node_modules/enhanced-resolve/lib/SyncAsyncFileSystemDecorator.js

@@ -0,0 +1,65 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+function SyncAsyncFileSystemDecorator(fs) {
+	this.fs = fs;
+	if(fs.statSync) {
+		this.stat = function(arg, callback) {
+			let result;
+			try {
+				result = fs.statSync(arg);
+			} catch(e) {
+				return callback(e);
+			}
+			callback(null, result);
+		};
+	}
+	if(fs.readdirSync) {
+		this.readdir = function(arg, callback) {
+			let result;
+			try {
+				result = fs.readdirSync(arg);
+			} catch(e) {
+				return callback(e);
+			}
+			callback(null, result);
+		};
+	}
+	if(fs.readFileSync) {
+		this.readFile = function(arg, callback) {
+			let result;
+			try {
+				result = fs.readFileSync(arg);
+			} catch(e) {
+				return callback(e);
+			}
+			callback(null, result);
+		};
+	}
+	if(fs.readlinkSync) {
+		this.readlink = function(arg, callback) {
+			let result;
+			try {
+				result = fs.readlinkSync(arg);
+			} catch(e) {
+				return callback(e);
+			}
+			callback(null, result);
+		};
+	}
+	if(fs.readJsonSync) {
+		this.readJson = function(arg, callback) {
+			let result;
+			try {
+				result = fs.readJsonSync(arg);
+			} catch(e) {
+				return callback(e);
+			}
+			callback(null, result);
+		};
+	}
+}
+module.exports = SyncAsyncFileSystemDecorator;

node_modules/enhanced-resolve/lib/TryNextPlugin.js

@@ -0,0 +1,20 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = class TryNextPlugin {
+	constructor(source, message, target) {
+		this.source = source;
+		this.message = message;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("TryNextPlugin", (request, resolveContext, callback) => {
+			resolver.doResolve(target, request, this.message, resolveContext, callback);
+		});
+	}
+};

node_modules/enhanced-resolve/lib/UnsafeCachePlugin.js

@@ -0,0 +1,41 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+function getCacheId(request, withContext) {
+	return JSON.stringify({
+		context: withContext ? request.context : "",
+		path: request.path,
+		query: request.query,
+		request: request.request
+	});
+}
+
+module.exports = class UnsafeCachePlugin {
+	constructor(source, filterPredicate, cache, withContext, target) {
+		this.source = source;
+		this.filterPredicate = filterPredicate;
+		this.withContext = withContext;
+		this.cache = cache || {};
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("UnsafeCachePlugin", (request, resolveContext, callback) => {
+			if(!this.filterPredicate(request)) return callback();
+			const cacheId = getCacheId(request, this.withContext);
+			const cacheEntry = this.cache[cacheId];
+			if(cacheEntry) {
+				return callback(null, cacheEntry);
+			}
+			resolver.doResolve(target, request, null, resolveContext, (err, result) => {
+				if(err) return callback(err);
+				if(result) return callback(null, this.cache[cacheId] = result);
+				callback();
+			});
+		});
+	}
+};

node_modules/enhanced-resolve/lib/UseFilePlugin.js

@@ -0,0 +1,25 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = class UseFilePlugin {
+	constructor(source, filename, target) {
+		this.source = source;
+		this.filename = filename;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("UseFilePlugin", (request, resolveContext, callback) => {
+			const filePath = resolver.join(request.path, this.filename);
+			const obj = Object.assign({}, request, {
+				path: filePath,
+				relativePath: request.relativePath && resolver.join(request.relativePath, this.filename)
+			});
+			resolver.doResolve(target, obj, "using path: " + filePath, resolveContext, callback);
+		});
+	}
+};

node_modules/enhanced-resolve/lib/concord.js

@@ -0,0 +1,195 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const globToRegExp = require("./globToRegExp").globToRegExp;
+
+function parseType(type) {
+	const items = type.split("+");
+	const t = items.shift();
+	return {
+		type: t === "*" ? null : t,
+		features: items
+	};
+}
+
+function isTypeMatched(baseType, testedType) {
+	if(typeof baseType === "string") baseType = parseType(baseType);
+	if(typeof testedType === "string") testedType = parseType(testedType);
+	if(testedType.type && testedType.type !== baseType.type) return false;
+	return testedType.features.every(requiredFeature => {
+		return baseType.features.indexOf(requiredFeature) >= 0;
+	});
+}
+
+function isResourceTypeMatched(baseType, testedType) {
+	baseType = baseType.split("/");
+	testedType = testedType.split("/");
+	if(baseType.length !== testedType.length) return false;
+	for(let i = 0; i < baseType.length; i++) {
+		if(!isTypeMatched(baseType[i], testedType[i]))
+			return false;
+	}
+	return true;
+}
+
+function isResourceTypeSupported(context, type) {
+	return context.supportedResourceTypes && context.supportedResourceTypes.some(supportedType => {
+		return isResourceTypeMatched(supportedType, type);
+	});
+}
+
+function isEnvironment(context, env) {
+	return context.environments && context.environments.every(environment => {
+		return isTypeMatched(environment, env);
+	});
+}
+
+const globCache = {};
+
+function getGlobRegExp(glob) {
+	const regExp = globCache[glob] || (globCache[glob] = globToRegExp(glob));
+	return regExp;
+}
+
+function matchGlob(glob, relativePath) {
+	const regExp = getGlobRegExp(glob);
+	return regExp.exec(relativePath);
+}
+
+function isGlobMatched(glob, relativePath) {
+	return !!matchGlob(glob, relativePath);
+}
+
+function isConditionMatched(context, condition) {
+	const items = condition.split("|");
+	return items.some(function testFn(item) {
+		item = item.trim();
+		const inverted = /^!/.test(item);
+		if(inverted) return !testFn(item.substr(1));
+		if(/^[a-z]+:/.test(item)) {
+			// match named condition
+			const match = /^([a-z]+):\s*/.exec(item);
+			const value = item.substr(match[0].length);
+			const name = match[1];
+			switch(name) {
+				case "referrer":
+					return isGlobMatched(value, context.referrer);
+				default:
+					return false;
+			}
+		} else if(item.indexOf("/") >= 0) {
+			// match supported type
+			return isResourceTypeSupported(context, item);
+		} else {
+			// match environment
+			return isEnvironment(context, item);
+		}
+	});
+}
+
+function isKeyMatched(context, key) {
+	while(true) { //eslint-disable-line
+		const match = /^\[([^\]]+)\]\s*/.exec(key);
+		if(!match) return key;
+		key = key.substr(match[0].length);
+		const condition = match[1];
+		if(!isConditionMatched(context, condition)) {
+			return false;
+		}
+	}
+}
+
+function getField(context, configuration, field) {
+	let value;
+	Object.keys(configuration).forEach(key => {
+		const pureKey = isKeyMatched(context, key);
+		if(pureKey === field) {
+			value = configuration[key];
+		}
+	});
+	return value;
+}
+
+function getMain(context, configuration) {
+	return getField(context, configuration, "main");
+}
+
+function getExtensions(context, configuration) {
+	return getField(context, configuration, "extensions");
+}
+
+function matchModule(context, configuration, request) {
+	const modulesField = getField(context, configuration, "modules");
+	if(!modulesField) return request;
+	let newRequest = request;
+	const keys = Object.keys(modulesField);
+	let iteration = 0;
+	let match;
+	let index;
+	for(let i = 0; i < keys.length; i++) {
+		const key = keys[i];
+		const pureKey = isKeyMatched(context, key);
+		match = matchGlob(pureKey, newRequest);
+		if(match) {
+			const value = modulesField[key];
+			if(typeof value !== "string") {
+				return value;
+			} else if(/^\(.+\)$/.test(pureKey)) {
+				newRequest = newRequest.replace(getGlobRegExp(pureKey), value);
+			} else {
+				index = 1;
+				newRequest = value.replace(/(\/?\*)?\*/g, replaceMatcher);
+			}
+			i = -1;
+			if(iteration++ > keys.length) {
+				throw new Error("Request '" + request + "' matches recursively");
+			}
+		}
+	}
+	return newRequest;
+
+	function replaceMatcher(find) {
+		switch(find) {
+			case "/**":
+				{
+					const m = match[index++];
+					return m ? "/" + m : "";
+				}
+			case "**":
+			case "*":
+				return match[index++];
+		}
+	}
+}
+
+function matchType(context, configuration, relativePath) {
+	const typesField = getField(context, configuration, "types");
+	if(!typesField) return undefined;
+	let type;
+	Object.keys(typesField).forEach(key => {
+		const pureKey = isKeyMatched(context, key);
+		if(isGlobMatched(pureKey, relativePath)) {
+			const value = typesField[key];
+			if(!type && /\/\*$/.test(value))
+				throw new Error("value ('" + value + "') of key '" + key + "' contains '*', but there is no previous value defined");
+			type = value.replace(/\/\*$/, "/" + type);
+		}
+	});
+	return type;
+}
+
+exports.parseType = parseType;
+exports.isTypeMatched = isTypeMatched;
+exports.isResourceTypeSupported = isResourceTypeSupported;
+exports.isEnvironment = isEnvironment;
+exports.isGlobMatched = isGlobMatched;
+exports.isConditionMatched = isConditionMatched;
+exports.isKeyMatched = isKeyMatched;
+exports.getField = getField;
+exports.getMain = getMain;
+exports.getExtensions = getExtensions;
+exports.matchModule = matchModule;
+exports.matchType = matchType;

node_modules/enhanced-resolve/lib/createInnerCallback.js

@@ -0,0 +1,47 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const util = require("util");
+
+// TODO remove in enhanced-resolve 5
+module.exports = util.deprecate(function createInnerCallback(callback, options, message, messageOptional) {
+	const log = options.log;
+	if(!log) {
+		if(options.stack !== callback.stack) {
+			const callbackWrapper = function callbackWrapper() {
+				return callback.apply(this, arguments);
+			};
+			callbackWrapper.stack = options.stack;
+			callbackWrapper.missing = options.missing;
+			return callbackWrapper;
+		}
+		return callback;
+	}
+
+	function loggingCallbackWrapper() {
+		return callback.apply(this, arguments);
+
+	}
+	if(message) {
+		if(!messageOptional) {
+			log(message);
+		}
+		loggingCallbackWrapper.log = function writeLog(msg) {
+			if(messageOptional) {
+				log(message);
+				messageOptional = false;
+			}
+			log("  " + msg);
+		};
+	} else {
+		loggingCallbackWrapper.log = function writeLog(msg) {
+			log(msg);
+		};
+	}
+	loggingCallbackWrapper.stack = options.stack;
+	loggingCallbackWrapper.missing = options.missing;
+	return loggingCallbackWrapper;
+}, "Pass resolveContext instead and use createInnerContext");

node_modules/enhanced-resolve/lib/createInnerContext.js

@@ -0,0 +1,26 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = function createInnerContext(options, message, messageOptional) {
+	let messageReported = false;
+	const childContext = {
+		log: (() => {
+			if(!options.log) return undefined;
+			if(!message) return options.log;
+			const logFunction = (msg) => {
+				if(!messageReported) {
+					options.log(message);
+					messageReported = true;
+				}
+				options.log("  " + msg);
+			};
+			return logFunction;
+		})(),
+		stack: options.stack,
+		missing: options.missing
+	};
+	return childContext;
+};

node_modules/enhanced-resolve/lib/forEachBail.js

@@ -0,0 +1,65 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = function forEachBail(array, iterator, callback) {
+	if(array.length === 0) return callback();
+	let currentPos = array.length;
+	let currentResult;
+	let done = [];
+	for(let i = 0; i < array.length; i++) {
+		const itCb = createIteratorCallback(i);
+		iterator(array[i], itCb);
+		if(currentPos === 0) break;
+	}
+
+	function createIteratorCallback(i) {
+		return(...args) => { // eslint-disable-line
+			if(i >= currentPos) return; // ignore
+			done.push(i);
+			if(args.length > 0) {
+				currentPos = i + 1;
+				done = done.filter(item => {
+					return item <= i;
+				});
+				currentResult = args;
+			}
+			if(done.length === currentPos) {
+				callback.apply(null, currentResult);
+				currentPos = 0;
+			}
+		};
+	}
+};
+
+module.exports.withIndex = function forEachBailWithIndex(array, iterator, callback) {
+	if(array.length === 0) return callback();
+	let currentPos = array.length;
+	let currentResult;
+	let done = [];
+	for(let i = 0; i < array.length; i++) {
+		const itCb = createIteratorCallback(i);
+		iterator(array[i], i, itCb);
+		if(currentPos === 0) break;
+	}
+
+	function createIteratorCallback(i) {
+		return(...args) => { // eslint-disable-line
+			if(i >= currentPos) return; // ignore
+			done.push(i);
+			if(args.length > 0) {
+				currentPos = i + 1;
+				done = done.filter(item => {
+					return item <= i;
+				});
+				currentResult = args;
+			}
+			if(done.length === currentPos) {
+				callback.apply(null, currentResult);
+				currentPos = 0;
+			}
+		};
+	}
+};

node_modules/enhanced-resolve/lib/getInnerRequest.js

@@ -0,0 +1,24 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = function getInnerRequest(resolver, request) {
+	if(typeof request.__innerRequest === "string" &&
+		request.__innerRequest_request === request.request &&
+		request.__innerRequest_relativePath === request.relativePath)
+		return request.__innerRequest;
+	let innerRequest;
+	if(request.request) {
+		innerRequest = request.request;
+		if(/^\.\.?\//.test(innerRequest) && request.relativePath) {
+			innerRequest = resolver.join(request.relativePath, innerRequest);
+		}
+	} else {
+		innerRequest = request.relativePath;
+	}
+	request.__innerRequest_request = request.request;
+	request.__innerRequest_relativePath = request.relativePath;
+	return request.__innerRequest = innerRequest;
+};

node_modules/enhanced-resolve/lib/getPaths.js

@@ -0,0 +1,35 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+module.exports = function getPaths(path) {
+	const parts = path.split(/(.*?[\\\/]+)/);
+	const paths = [path];
+	const seqments = [parts[parts.length - 1]];
+	let part = parts[parts.length - 1];
+	path = path.substr(0, path.length - part.length - 1);
+	for(let i = parts.length - 2; i > 2; i -= 2) {
+		paths.push(path);
+		part = parts[i];
+		path = path.substr(0, path.length - part.length) || "/";
+		seqments.push(part.substr(0, part.length - 1));
+	}
+	part = parts[1];
+	seqments.push(part);
+	paths.push(part);
+	return {
+		paths: paths,
+		seqments: seqments
+	};
+};
+
+module.exports.basename = function basename(path) {
+	const i = path.lastIndexOf("/"),
+		j = path.lastIndexOf("\\");
+	const p = i < 0 ? j : j < 0 ? i : i < j ? j : i;
+	if(p < 0) return null;
+	const s = path.substr(p + 1);
+	return s;
+};

node_modules/enhanced-resolve/lib/globToRegExp.js

@@ -0,0 +1,194 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+function globToRegExp(glob) {
+	// * [^\\\/]*
+	// /**/ /.+/
+	// ^* \./.+ (concord special)
+	// ? [^\\\/]
+	// [!...] [^...]
+	// [^...] [^...]
+	// / [\\\/]
+	// {...,...} (...|...)
+	// ?(...|...) (...|...)?
+	// +(...|...) (...|...)+
+	// *(...|...) (...|...)*
+	// @(...|...) (...|...)
+	if(/^\(.+\)$/.test(glob)) {
+		// allow to pass an RegExp in brackets
+		return new RegExp(glob.substr(1, glob.length - 2));
+	}
+	const tokens = tokenize(glob);
+	const process = createRoot();
+	const regExpStr = tokens.map(process).join("");
+	return new RegExp("^" + regExpStr + "$");
+}
+
+const SIMPLE_TOKENS = {
+	"@(": "one",
+	"?(": "zero-one",
+	"+(": "one-many",
+	"*(": "zero-many",
+	"|": "segment-sep",
+	"/**/": "any-path-segments",
+	"**": "any-path",
+	"*": "any-path-segment",
+	"?": "any-char",
+	"{": "or",
+	"/": "path-sep",
+	",": "comma",
+	")": "closing-segment",
+	"}": "closing-or"
+};
+
+function tokenize(glob) {
+	return glob.split(/([@?+*]\(|\/\*\*\/|\*\*|[?*]|\[[\!\^]?(?:[^\]\\]|\\.)+\]|\{|,|\/|[|)}])/g).map(item => {
+		if(!item)
+			return null;
+		const t = SIMPLE_TOKENS[item];
+		if(t) {
+			return {
+				type: t
+			};
+		}
+		if(item[0] === "[") {
+			if(item[1] === "^" || item[1] === "!") {
+				return {
+					type: "inverted-char-set",
+					value: item.substr(2, item.length - 3)
+				};
+			} else {
+				return {
+					type: "char-set",
+					value: item.substr(1, item.length - 2)
+				};
+			}
+		}
+		return {
+			type: "string",
+			value: item
+		};
+	}).filter(Boolean).concat({
+		type: "end"
+	});
+}
+
+function createRoot() {
+	const inOr = [];
+	const process = createSeqment();
+	let initial = true;
+	return function(token) {
+		switch(token.type) {
+			case "or":
+				inOr.push(initial);
+				return "(";
+			case "comma":
+				if(inOr.length) {
+					initial = inOr[inOr.length - 1];
+					return "|";
+				} else {
+					return process({
+						type: "string",
+						value: ","
+					}, initial);
+				}
+			case "closing-or":
+				if(inOr.length === 0)
+					throw new Error("Unmatched '}'");
+				inOr.pop();
+				return ")";
+			case "end":
+				if(inOr.length)
+					throw new Error("Unmatched '{'");
+				return process(token, initial);
+			default:
+				{
+					const result = process(token, initial);
+					initial = false;
+					return result;
+				}
+		}
+	};
+}
+
+function createSeqment() {
+	const inSeqment = [];
+	const process = createSimple();
+	return function(token, initial) {
+		switch(token.type) {
+			case "one":
+			case "one-many":
+			case "zero-many":
+			case "zero-one":
+				inSeqment.push(token.type);
+				return "(";
+			case "segment-sep":
+				if(inSeqment.length) {
+					return "|";
+				} else {
+					return process({
+						type: "string",
+						value: "|"
+					}, initial);
+				}
+			case "closing-segment":
+				{
+					const segment = inSeqment.pop();
+					switch(segment) {
+						case "one":
+							return ")";
+						case "one-many":
+							return ")+";
+						case "zero-many":
+							return ")*";
+						case "zero-one":
+							return ")?";
+					}
+					throw new Error("Unexcepted segment " + segment);
+				}
+			case "end":
+				if(inSeqment.length > 0) {
+					throw new Error("Unmatched segment, missing ')'");
+				}
+				return process(token, initial);
+			default:
+				return process(token, initial);
+		}
+	};
+}
+
+function createSimple() {
+	return function(token, initial) {
+		switch(token.type) {
+			case "path-sep":
+				return "[\\\\/]+";
+			case "any-path-segments":
+				return "[\\\\/]+(?:(.+)[\\\\/]+)?";
+			case "any-path":
+				return "(.*)";
+			case "any-path-segment":
+				if(initial) {
+					return "\\.[\\\\/]+(?:.*[\\\\/]+)?([^\\\\/]+)";
+				} else {
+					return "([^\\\\/]*)";
+				}
+			case "any-char":
+				return "[^\\\\/]";
+			case "inverted-char-set":
+				return "[^" + token.value + "]";
+			case "char-set":
+				return "[" + token.value + "]";
+			case "string":
+				return token.value.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
+			case "end":
+				return "";
+			default:
+				throw new Error("Unsupported token '" + token.type + "'");
+		}
+	};
+}
+
+exports.globToRegExp = globToRegExp;

node_modules/enhanced-resolve/lib/node.js

@@ -0,0 +1,162 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const ResolverFactory = require("./ResolverFactory");
+
+const NodeJsInputFileSystem = require("./NodeJsInputFileSystem");
+const CachedInputFileSystem = require("./CachedInputFileSystem");
+
+const nodeFileSystem = new CachedInputFileSystem(new NodeJsInputFileSystem(), 4000);
+
+const nodeContext = {
+	environments: [
+		"node+es3+es5+process+native"
+	]
+};
+
+const asyncResolver = ResolverFactory.createResolver({
+	extensions: [".js", ".json", ".node"],
+	fileSystem: nodeFileSystem
+});
+module.exports = function resolve(context, path, request, resolveContext, callback) {
+	if(typeof context === "string") {
+		callback = resolveContext;
+		resolveContext = request;
+		request = path;
+		path = context;
+		context = nodeContext;
+	}
+	if(typeof callback !== "function") {
+		callback = resolveContext;
+	}
+	asyncResolver.resolve(context, path, request, resolveContext, callback);
+};
+
+const syncResolver = ResolverFactory.createResolver({
+	extensions: [".js", ".json", ".node"],
+	useSyncFileSystemCalls: true,
+	fileSystem: nodeFileSystem
+});
+module.exports.sync = function resolveSync(context, path, request) {
+	if(typeof context === "string") {
+		request = path;
+		path = context;
+		context = nodeContext;
+	}
+	return syncResolver.resolveSync(context, path, request);
+};
+
+const asyncContextResolver = ResolverFactory.createResolver({
+	extensions: [".js", ".json", ".node"],
+	resolveToContext: true,
+	fileSystem: nodeFileSystem
+});
+module.exports.context = function resolveContext(context, path, request, resolveContext, callback) {
+	if(typeof context === "string") {
+		callback = resolveContext;
+		resolveContext = request;
+		request = path;
+		path = context;
+		context = nodeContext;
+	}
+	if(typeof callback !== "function") {
+		callback = resolveContext;
+	}
+	asyncContextResolver.resolve(context, path, request, resolveContext, callback);
+};
+
+const syncContextResolver = ResolverFactory.createResolver({
+	extensions: [".js", ".json", ".node"],
+	resolveToContext: true,
+	useSyncFileSystemCalls: true,
+	fileSystem: nodeFileSystem
+});
+module.exports.context.sync = function resolveContextSync(context, path, request) {
+	if(typeof context === "string") {
+		request = path;
+		path = context;
+		context = nodeContext;
+	}
+	return syncContextResolver.resolveSync(context, path, request);
+};
+
+const asyncLoaderResolver = ResolverFactory.createResolver({
+	extensions: [".js", ".json", ".node"],
+	moduleExtensions: ["-loader"],
+	mainFields: ["loader", "main"],
+	fileSystem: nodeFileSystem
+});
+module.exports.loader = function resolveLoader(context, path, request, resolveContext, callback) {
+	if(typeof context === "string") {
+		callback = resolveContext;
+		resolveContext = request;
+		request = path;
+		path = context;
+		context = nodeContext;
+	}
+	if(typeof callback !== "function") {
+		callback = resolveContext;
+	}
+	asyncLoaderResolver.resolve(context, path, request, resolveContext, callback);
+};
+
+const syncLoaderResolver = ResolverFactory.createResolver({
+	extensions: [".js", ".json", ".node"],
+	moduleExtensions: ["-loader"],
+	mainFields: ["loader", "main"],
+	useSyncFileSystemCalls: true,
+	fileSystem: nodeFileSystem
+});
+module.exports.loader.sync = function resolveLoaderSync(context, path, request) {
+	if(typeof context === "string") {
+		request = path;
+		path = context;
+		context = nodeContext;
+	}
+	return syncLoaderResolver.resolveSync(context, path, request);
+};
+
+module.exports.create = function create(options) {
+	options = Object.assign({
+		fileSystem: nodeFileSystem
+	}, options);
+	const resolver = ResolverFactory.createResolver(options);
+	return function(context, path, request, resolveContext, callback) {
+		if(typeof context === "string") {
+			callback = resolveContext;
+			resolveContext = request;
+			request = path;
+			path = context;
+			context = nodeContext;
+		}
+		if(typeof callback !== "function") {
+			callback = resolveContext;
+		}
+		resolver.resolve(context, path, request, resolveContext, callback);
+	};
+};
+
+module.exports.create.sync = function createSync(options) {
+	options = Object.assign({
+		useSyncFileSystemCalls: true,
+		fileSystem: nodeFileSystem
+	}, options);
+	const resolver = ResolverFactory.createResolver(options);
+	return function(context, path, request) {
+		if(typeof context === "string") {
+			request = path;
+			path = context;
+			context = nodeContext;
+		}
+		return resolver.resolveSync(context, path, request);
+	};
+};
+
+// Export Resolver, FileSystems and Plugins
+module.exports.ResolverFactory = ResolverFactory;
+
+module.exports.NodeJsInputFileSystem = NodeJsInputFileSystem;
+module.exports.CachedInputFileSystem = CachedInputFileSystem;

node_modules/enhanced-resolve/package.json

@@ -0,0 +1,82 @@
+{
+  "_from": "enhanced-resolve@^4.1.0",
+  "_id": "enhanced-resolve@4.1.0",
+  "_inBundle": false,
+  "_integrity": "sha512-F/7vkyTtyc/llOIn8oWclcB25KdRaiPBpZYDgJHgh/UHtpgT2p2eldQgtQnLtUvfMKPKxbRaQM/hHkvLHt1Vng==",
+  "_location": "/enhanced-resolve",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "enhanced-resolve@^4.1.0",
+    "name": "enhanced-resolve",
+    "escapedName": "enhanced-resolve",
+    "rawSpec": "^4.1.0",
+    "saveSpec": null,
+    "fetchSpec": "^4.1.0"
+  },
+  "_requiredBy": [
+    "/webpack"
+  ],
+  "_resolved": "https://registry.npmjs.org/enhanced-resolve/-/enhanced-resolve-4.1.0.tgz",
+  "_shasum": "41c7e0bfdfe74ac1ffe1e57ad6a5c6c9f3742a7f",
+  "_spec": "enhanced-resolve@^4.1.0",
+  "_where": "/Users/stefanfejes/Projects/30-seconds-of-python-code/node_modules/webpack",
+  "author": {
+    "name": "Tobias Koppers @sokra"
+  },
+  "bugs": {
+    "url": "https://github.com/webpack/enhanced-resolve/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "graceful-fs": "^4.1.2",
+    "memory-fs": "^0.4.0",
+    "tapable": "^1.0.0"
+  },
+  "deprecated": false,
+  "description": "Offers a async require.resolve function. It's highly configurable.",
+  "devDependencies": {
+    "beautify-lint": "^1.0.3",
+    "codecov.io": "^0.1.6",
+    "coveralls": "^2.11.6",
+    "eslint": "^3.14.1",
+    "eslint-plugin-node": "^3.0.5",
+    "eslint-plugin-nodeca": "^1.0.3",
+    "istanbul": "^0.4.1",
+    "js-beautify": "^1.5.10",
+    "mocha": "^2.3.4",
+    "should": "^8.0.2"
+  },
+  "engines": {
+    "node": ">=6.9.0"
+  },
+  "files": [
+    "lib",
+    "LICENSE"
+  ],
+  "homepage": "http://github.com/webpack/enhanced-resolve",
+  "licenses": [
+    {
+      "type": "MIT",
+      "url": "http://www.opensource.org/licenses/mit-license.php"
+    }
+  ],
+  "main": "lib/node.js",
+  "name": "enhanced-resolve",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/webpack/enhanced-resolve.git"
+  },
+  "scripts": {
+    "beautify": "beautify-rewrite lib/**.js test/*.js",
+    "beautify-lint": "beautify-lint lib/**.js test/*.js",
+    "cover": "istanbul cover node_modules/mocha/bin/_mocha",
+    "lint": "eslint lib test",
+    "precover": "npm run lint && npm run beautify-lint",
+    "pretest": "npm run lint && npm run beautify-lint",
+    "test": "mocha --full-trace --check-leaks",
+    "travis": "npm run cover -- --report lcovonly"
+  },
+  "version": "4.1.0"
+}