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1 files changed, 143 insertions, 0 deletions

diff --git a/node_modules/webpack/lib/dependencies/RequireContextPlugin.js b/node_modules/webpack/lib/dependencies/RequireContextPlugin.js
new file mode 100644
index 00000000..4e44e871
--- /dev/null
+++ b/node_modules/webpack/lib/dependencies/RequireContextPlugin.js
@@ -0,0 +1,143 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const RequireContextDependency = require("./RequireContextDependency");
+const ContextElementDependency = require("./ContextElementDependency");
+
+const RequireContextDependencyParserPlugin = require("./RequireContextDependencyParserPlugin");
+
+class RequireContextPlugin {
+	constructor(modulesDirectories, extensions, mainFiles) {
+		if (!Array.isArray(modulesDirectories)) {
+			throw new Error("modulesDirectories must be an array");
+		}
+		if (!Array.isArray(extensions)) {
+			throw new Error("extensions must be an array");
+		}
+		this.modulesDirectories = modulesDirectories;
+		this.extensions = extensions;
+		this.mainFiles = mainFiles;
+	}
+
+	apply(compiler) {
+		compiler.hooks.compilation.tap(
+			"RequireContextPlugin",
+			(compilation, { contextModuleFactory, normalModuleFactory }) => {
+				compilation.dependencyFactories.set(
+					RequireContextDependency,
+					contextModuleFactory
+				);
+				compilation.dependencyTemplates.set(
+					RequireContextDependency,
+					new RequireContextDependency.Template()
+				);
+
+				compilation.dependencyFactories.set(
+					ContextElementDependency,
+					normalModuleFactory
+				);
+
+				const handler = (parser, parserOptions) => {
+					if (
+						parserOptions.requireContext !== undefined &&
+						!parserOptions.requireContext
+					)
+						return;
+
+					new RequireContextDependencyParserPlugin().apply(parser);
+				};
+
+				normalModuleFactory.hooks.parser
+					.for("javascript/auto")
+					.tap("RequireContextPlugin", handler);
+				normalModuleFactory.hooks.parser
+					.for("javascript/dynamic")
+					.tap("RequireContextPlugin", handler);
+
+				contextModuleFactory.hooks.alternatives.tap(
+					"RequireContextPlugin",
+					items => {
+						if (items.length === 0) return items;
+						return items
+							.map(obj => {
+								return this.extensions
+									.filter(ext => {
+										const l = obj.request.length;
+										return (
+											l > ext.length &&
+											obj.request.substr(l - ext.length, l) === ext
+										);
+									})
+									.map(ext => {
+										const l = obj.request.length;
+										return {
+											context: obj.context,
+											request: obj.request.substr(0, l - ext.length)
+										};
+									})
+									.concat(obj);
+							})
+							.reduce((a, b) => a.concat(b), []);
+					}
+				);
+
+				contextModuleFactory.hooks.alternatives.tap(
+					"RequireContextPlugin",
+					items => {
+						if (items.length === 0) return items;
+						return items
+							.map(obj => {
+								return this.mainFiles
+									.filter(mainFile => {
+										const l = obj.request.length;
+										return (
+											l > mainFile.length + 1 &&
+											obj.request.substr(l - mainFile.length - 1, l) ===
+												"/" + mainFile
+										);
+									})
+									.map(mainFile => {
+										const l = obj.request.length;
+										return [
+											{
+												context: obj.context,
+												request: obj.request.substr(0, l - mainFile.length)
+											},
+											{
+												context: obj.context,
+												request: obj.request.substr(0, l - mainFile.length - 1)
+											}
+										];
+									})
+									.reduce((a, b) => a.concat(b), [])
+									.concat(obj);
+							})
+							.reduce((a, b) => a.concat(b), []);
+					}
+				);
+
+				contextModuleFactory.hooks.alternatives.tap(
+					"RequireContextPlugin",
+					items => {
+						if (items.length === 0) return items;
+						return items.map(obj => {
+							for (let i = 0; i < this.modulesDirectories.length; i++) {
+								const dir = this.modulesDirectories[i];
+								const idx = obj.request.indexOf("./" + dir + "/");
+								if (idx === 0) {
+									obj.request = obj.request.slice(dir.length + 3);
+									break;
+								}
+							}
+							return obj;
+						});
+					}
+				);
+			}
+		);
+	}
+}
+module.exports = RequireContextPlugin;