Merge from vscode 2cd495805cf99b31b6926f08ff4348124b2cf73d

src/bootstrap-node.js

@@ -0,0 +1,60 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+//@ts-check
+'use strict';
+
+/**
+ * Add support for redirecting the loading of node modules
+ *
+ * @param {string} injectPath
+ */
+exports.injectNodeModuleLookupPath = function (injectPath) {
+	if (!injectPath) {
+		throw new Error('Missing injectPath');
+	}
+
+	const Module = require('module');
+	const path = require('path');
+
+	const nodeModulesPath = path.join(__dirname, '../node_modules');
+
+	// @ts-ignore
+	const originalResolveLookupPaths = Module._resolveLookupPaths;
+
+	// @ts-ignore
+	Module._resolveLookupPaths = function (moduleName, parent) {
+		const paths = originalResolveLookupPaths(moduleName, parent);
+		if (Array.isArray(paths)) {
+			for (let i = 0, len = paths.length; i < len; i++) {
+				if (paths[i] === nodeModulesPath) {
+					paths.splice(i, 0, injectPath);
+					break;
+				}
+			}
+		}
+
+		return paths;
+	};
+};
+
+exports.removeGlobalNodeModuleLookupPaths = function () {
+	const Module = require('module');
+	// @ts-ignore
+	const globalPaths = Module.globalPaths;
+
+	// @ts-ignore
+	const originalResolveLookupPaths = Module._resolveLookupPaths;
+
+	// @ts-ignore
+	Module._resolveLookupPaths = function (moduleName, parent) {
+		const paths = originalResolveLookupPaths(moduleName, parent);
+		let commonSuffixLength = 0;
+		while (commonSuffixLength < paths.length && paths[paths.length - 1 - commonSuffixLength] === globalPaths[globalPaths.length - 1 - commonSuffixLength]) {
+			commonSuffixLength++;
+		}
+		return paths.slice(0, paths.length - commonSuffixLength);
+	};
+};