Add cli arguments

cli.ts

@@ -0,0 +1,65 @@
+import * as os from "os";
+import { validatePaths } from "vs/code/node/paths";
+import { parseMainProcessArgv } from "vs/platform/environment/node/argvHelper";
+import { ParsedArgs } from "vs/platform/environment/common/environment";
+import { buildHelpMessage, buildVersionMessage } from "vs/platform/environment/node/argv";
+import product from "vs/platform/product/node/product";
+import pkg from "vs/platform/product/node/package";
+import { MainServer, WebviewServer } from "vs/server/server";
+import "vs/server/tar";
+
+interface IMainCli {
+	main: (argv: ParsedArgs) => Promise<void>;
+}
+
+const main = async (): Promise<void> => {
+	const args = validatePaths(parseMainProcessArgv(process.argv));
+
+	if (!product.extensionsGallery) {
+		product.extensionsGallery = {
+			serviceUrl: process.env.SERVICE_URL || "https://v1.extapi.coder.com",
+			itemUrl: process.env.ITEM_URL || "",
+			controlUrl: "",
+			recommendationsUrl: "",
+		};
+	}
+
+	if (args.help) {
+		const executable = `${product.applicationName}${os.platform() === "win32" ? ".exe" : ""}`;
+		return console.log(buildHelpMessage(product.nameLong, executable, pkg.version));
+	}
+
+	if (args.version) {
+		return console.log(buildVersionMessage(pkg.version, product.commit));
+	}
+
+	const shouldSpawnCliProcess = (): boolean => {
+		return !!args["install-source"]
+			|| !!args["list-extensions"]
+			|| !!args["install-extension"]
+			|| !!args["uninstall-extension"]
+			|| !!args["locate-extension"]
+			|| !!args["telemetry"];
+	};
+
+	if (shouldSpawnCliProcess()) {
+		const cli = await new Promise<IMainCli>((c, e) => require(["vs/code/node/cliProcessMain"], c, e));
+		await cli.main(args);
+		// There is some WriteStream instance keeping it open so force an exit.
+		return process.exit(0);
+	}
+
+	const webviewServer = new WebviewServer();
+	const server = new MainServer(webviewServer, args);
+	// The main server inserts webview server address to the root HTML, so we'll
+	// need to wait for it to listen otherwise the address will be null.
+	await webviewServer.listen(8444);
+	await server.listen(8443);
+	console.log(`Main server serving ${server.address}`);
+	console.log(`Webview server serving ${webviewServer.address}`);
+};
+
+main().catch((error) => {
+	console.error(error);
+	process.exit(1);
+});