npm and error messages

node_modules/webpack/lib/SingleEntryPlugin.js

@@ -0,0 +1,35 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+const SingleEntryDependency = require("./dependencies/SingleEntryDependency");
+
+class SingleEntryPlugin {
+	constructor(context, entry, name) {
+		this.context = context;
+		this.entry = entry;
+		this.name = name;
+	}
+
+	apply(compiler) {
+		compiler.plugin("compilation", (compilation, params) => {
+			const normalModuleFactory = params.normalModuleFactory;
+
+			compilation.dependencyFactories.set(SingleEntryDependency, normalModuleFactory);
+		});
+
+		compiler.plugin("make", (compilation, callback) => {
+			const dep = SingleEntryPlugin.createDependency(this.entry, this.name);
+			compilation.addEntry(this.context, dep, this.name, callback);
+		});
+	}
+
+	static createDependency(entry, name) {
+		const dep = new SingleEntryDependency(entry);
+		dep.loc = name;
+		return dep;
+	}
+}
+
+module.exports = SingleEntryPlugin;