Initial VS Code 1.19 source merge (#571)

* Initial 1.19 xcopy

* Fix yarn build

* Fix numerous build breaks

* Next batch of build break fixes

* More build break fixes

* Runtime breaks

* Additional post merge fixes

* Fix windows setup file

* Fix test failures.

* Update license header blocks to refer to source eula

build/tfs/linux/frozen-check.ts

@@ -0,0 +1,42 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+'use strict';
+
+import { DocumentClient } from 'documentdb';
+
+interface Config {
+	id: string;
+	frozen: boolean;
+}
+
+function createDefaultConfig(quality: string): Config {
+	return {
+		id: quality,
+		frozen: false
+	};
+}
+
+function getConfig(quality: string): Promise<Config> {
+	const client = new DocumentClient(process.env['AZURE_DOCUMENTDB_ENDPOINT'], { masterKey: process.env['AZURE_DOCUMENTDB_MASTERKEY'] });
+	const collection = 'dbs/builds/colls/config';
+	const query = {
+		query: `SELECT TOP 1 * FROM c WHERE c.id = @quality`,
+		parameters: [
+			{ name: '@quality', value: quality }
+		]
+	};
+
+	return new Promise<Config>((c, e) => {
+		client.queryDocuments(collection, query).toArray((err, results) => {
+			if (err && err.code !== 409) { return e(err); }
+
+			c(!results || results.length === 0 ? createDefaultConfig(quality) : results[0] as any as Config);
+		});
+	});
+}
+
+getConfig(process.argv[2])
+	.then(c => console.log(c.frozen), e => console.error(e));