Implement update service

scripts/tasks.bash

@@ -74,7 +74,7 @@ function build-code-server() {
 	cd "${buildPath}" && yarn --production --force --build-from-source
 	rm "${buildPath}/"{package.json,yarn.lock,.yarnrc}
 
-	local packageJson="{\"codeServerVersion\": \"${codeServerVersion}\"}"
+	local packageJson="{\"codeServerVersion\": \"${codeServerVersion}-vsc${vscodeVersion}\"}"
 	cp -r "${sourcePath}/.build/extensions" "${buildPath}"
 	node "${rootPath}/scripts/merge.js" "${sourcePath}/package.json" "${rootPath}/scripts/package.json" "${buildPath}/package.json" "${packageJson}"
 	node "${rootPath}/scripts/merge.js" "${sourcePath}/.build/product.json" "${rootPath}/scripts/product.json" "${buildPath}/product.json"

src/cli.ts

+import * as cp from "child_process";
 import * as os from "os";
 
+import { main as vsCli } from "vs/code/node/cliProcessMain";
 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, options } from "vs/platform/environment/node/argv";
+import { ParsedArgs } from "vs/platform/environment/common/environment";
 import pkg from "vs/platform/product/node/package";
 import product from "vs/platform/product/node/product";
 
+import { ipcMain } from "vs/server/src/ipc";
+
+product.extensionsGallery = {
+	serviceUrl: process.env.SERVICE_URL || "https://v1.extapi.coder.com",
+	itemUrl: process.env.ITEM_URL || "",
+	controlUrl: "",
+	recommendationsUrl: "",
+	...(product.extensionsGallery || {}),
+};
+
 import { MainServer } from "vs/server/src/server";
 import { enableExtensionTars } from "vs/server/src/tar";
 import { AuthType, buildAllowedMessage, generateCertificate, generatePassword, localRequire, open, unpackExecutables } from "vs/server/src/util";
-import { main as vsCli } from "vs/code/node/cliProcessMain";
 
 const { logger } = localRequire<typeof import("@coder/logger/out/index")>("@coder/logger/out/index");
 
@@ -27,88 +38,57 @@ interface Args extends ParsedArgs {
 	socket?: string;
 }
 
-// The last item is _ which is like -- so our options need to come before it.
-const last = options.pop()!;
-
-// Remove options that won't work or don't make sense.
-let i = options.length;
-while (i--) {
-	switch (options[i].id) {
-		case "add":
-		case "diff":
-		case "file-uri":
-		case "folder-uri":
-		case "goto":
-		case "new-window":
-		case "reuse-window":
-		case "wait":
-		case "disable-gpu":
-		// TODO: pretty sure these don't work but not 100%.
-		case "max-memory":
-		case "prof-startup":
-		case "inspect-extensions":
-		case "inspect-brk-extensions":
-			options.splice(i, 1);
-			break;
+const getArgs = (): Args => {
+	// The last item is _ which is like -- so our options need to come before it.
+	const last = options.pop()!;
+
+	// Remove options that won't work or don't make sense.
+	let i = options.length;
+	while (i--) {
+		switch (options[i].id) {
+			case "add":
+			case "diff":
+			case "file-uri":
+			case "folder-uri":
+			case "goto":
+			case "new-window":
+			case "reuse-window":
+			case "wait":
+			case "disable-gpu":
+			// TODO: pretty sure these don't work but not 100%.
+			case "max-memory":
+			case "prof-startup":
+			case "inspect-extensions":
+			case "inspect-brk-extensions":
+				options.splice(i, 1);
+				break;
+		}
 	}
-}
 
-options.push({ id: "base-path", type: "string", cat: "o", description: "Base path of the URL at which code-server is hosted (used for login redirects)." });
-options.push({ id: "cert", type: "string", cat: "o", description: "Path to certificate. If the path is omitted, both this and --cert-key will be generated." });
-options.push({ id: "cert-key", type: "string", cat: "o", description: "Path to the certificate's key if one was provided." });
-options.push({ id: "extra-builtin-extensions-dir", type: "string", cat: "o", description: "Path to an extra builtin extension directory." });
-options.push({ id: "extra-extensions-dir", type: "string", cat: "o", description: "Path to an extra user extension directory." });
-options.push({ id: "host", type: "string", cat: "o", description: "Host for the server." });
-options.push({ id: "auth", type: "string", cat: "o", description: `The type of authentication to use. ${buildAllowedMessage(AuthType)}.` });
-options.push({ id: "open", type: "boolean", cat: "o", description: "Open in the browser on startup." });
-options.push({ id: "port", type: "string", cat: "o", description: "Port for the main server." });
-options.push({ id: "socket", type: "string", cat: "o", description: "Listen on a socket instead of host:port." });
+	options.push({ id: "base-path", type: "string", cat: "o", description: "Base path of the URL at which code-server is hosted (used for login redirects)." });
+	options.push({ id: "cert", type: "string", cat: "o", description: "Path to certificate. If the path is omitted, both this and --cert-key will be generated." });
+	options.push({ id: "cert-key", type: "string", cat: "o", description: "Path to the certificate's key if one was provided." });
+	options.push({ id: "extra-builtin-extensions-dir", type: "string", cat: "o", description: "Path to an extra builtin extension directory." });
+	options.push({ id: "extra-extensions-dir", type: "string", cat: "o", description: "Path to an extra user extension directory." });
+	options.push({ id: "host", type: "string", cat: "o", description: "Host for the server." });
+	options.push({ id: "auth", type: "string", cat: "o", description: `The type of authentication to use. ${buildAllowedMessage(AuthType)}.` });
+	options.push({ id: "open", type: "boolean", cat: "o", description: "Open in the browser on startup." });
+	options.push({ id: "port", type: "string", cat: "o", description: "Port for the main server." });
+	options.push({ id: "socket", type: "string", cat: "o", description: "Listen on a socket instead of host:port." });
 
-options.push(last);
+	options.push(last);
 
-const main = async (): Promise<void | void[]> => {
 	const args = validatePaths(parseMainProcessArgv(process.argv)) as Args;
 	["extra-extensions-dir", "extra-builtin-extensions-dir"].forEach((key) => {
 		if (typeof args[key] === "string") {
 			args[key] = [args[key]];
 		}
 	});
+	return args;
+};
 
-	if (!product.extensionsGallery) {
-		product.extensionsGallery = {
-			serviceUrl: process.env.SERVICE_URL || "https://v1.extapi.coder.com",
-			itemUrl: process.env.ITEM_URL || "",
-			controlUrl: "",
-			recommendationsUrl: "",
-		};
-	}
-
-	const version = `${(pkg as any).codeServerVersion || "development"}-vsc${pkg.version}`;
-	if (args.help) {
-		const executable = `${product.applicationName}${os.platform() === "win32" ? ".exe" : ""}`;
-		return console.log(buildHelpMessage(product.nameLong, executable, version, undefined, false));
-	}
-
-	if (args.version) {
-		return buildVersionMessage(version, product.commit).split("\n").map((line) => logger.info(line));
-	}
-
-	enableExtensionTars();
-
-	const shouldSpawnCliProcess = (): boolean => {
-		return !!args["install-source"]
-			|| !!args["list-extensions"]
-			|| !!args["install-extension"]
-			|| !!args["uninstall-extension"]
-			|| !!args["locate-extension"]
-			|| !!args["telemetry"];
-	};
-
-	if (shouldSpawnCliProcess()) {
-		await vsCli(args);
-		return process.exit(0); // There is a WriteStream instance keeping it open.
-	}
-
+const startVscode = async (): Promise<void | void[]> => {
+	const args = getArgs();
 	const extra = args["_"] || [];
 	const options = {
 		auth: args.auth,
@@ -136,6 +116,8 @@ const main = async (): Promise<void | void[]> => {
 		options.certKey = certKey;
 	}
 
+	enableExtensionTars();
+
 	const server = new MainServer({
 		...options,
 		port: typeof args.port !== "undefined" && parseInt(args.port, 10) || 8443,
@@ -168,14 +150,99 @@ const main = async (): Promise<void | void[]> => {
 	}
 
 	if (!server.options.socket && args.open) {
-		// The web socket doesn't seem to work if using 0.0.0.0.
+		// The web socket doesn't seem to work if browsing with 0.0.0.0.
 		const openAddress = `http://localhost:${server.options.port}`;
 		await open(openAddress).catch(console.error);
 		logger.info(`  - Opened ${openAddress}`);
 	}
 };
 
+const startCli = (): boolean | Promise<void> => {
+	const args = getArgs();
+	if (args.help) {
+		const executable = `${product.applicationName}${os.platform() === "win32" ? ".exe" : ""}`;
+		console.log(buildHelpMessage(product.nameLong, executable, pkg.codeServerVersion, undefined, false));
+		return true;
+	}
+
+	if (args.version) {
+		buildVersionMessage(pkg.codeServerVersion, product.commit).split("\n").map((line) => logger.info(line));
+		return true;
+	}
+
+	const shouldSpawnCliProcess = (): boolean => {
+		return !!args["install-source"]
+			|| !!args["list-extensions"]
+			|| !!args["install-extension"]
+			|| !!args["uninstall-extension"]
+			|| !!args["locate-extension"]
+			|| !!args["telemetry"];
+	};
+
+	if (shouldSpawnCliProcess()) {
+		enableExtensionTars();
+		return vsCli(args);
+	}
+
+	return false;
+};
+
+export class WrapperProcess {
+	private process?: cp.ChildProcess;
+	private started?: Promise<void>;
+
+	public constructor() {
+		ipcMain.onMessage(async (message) => {
+			switch (message) {
+				case "relaunch":
+					logger.info("Relaunching...");
+					this.started = undefined;
+					if (this.process) {
+						this.process.kill();
+					}
+					try {
+						await this.start();
+					} catch (error) {
+						logger.error(error.message);
+						process.exit(typeof error.code === "number" ? error.code : 1);
+					}
+					break;
+				default:
+					logger.error(`Unrecognized message ${message}`);
+					break;
+			}
+		});
+	}
+
+	public start(): Promise<void> {
+		if (!this.started) {
+			const child = this.spawn();
+			this.started = ipcMain.handshake(child);
+			this.process = child;
+		}
+		return this.started;
+	}
+
+	private spawn(): cp.ChildProcess {
+		return cp.spawn(process.argv[0], process.argv.slice(1), {
+			env: {
+				...process.env,
+				LAUNCH_VSCODE: "true",
+			},
+			stdio: ["inherit", "inherit", "inherit", "ipc"],
+		});
+	}
+}
+
+const main = async(): Promise<boolean | void | void[]> => {
+	if (process.env.LAUNCH_VSCODE) {
+		await ipcMain.handshake();
+		return startVscode();
+	}
+	return startCli() || new WrapperProcess().start();
+};
+
 main().catch((error) => {
-	console.error(error);
-	process.exit(1);
+	logger.error(error.message);
+	process.exit(typeof error.code === "number" ? error.code : 1);
 });

src/ipc.ts

+import * as cp from "child_process";
+
+import { Emitter } from "vs/base/common/event";
+
+enum ControlMessage {
+	okToChild = "ok>",
+	okFromChild = "ok<",
+}
+
+export type Message = "relaunch";
+
+class IpcMain {
+	protected readonly _onMessage = new Emitter<Message>();
+	public readonly onMessage = this._onMessage.event;
+
+	public handshake(child?: cp.ChildProcess): Promise<void> {
+		return new Promise((resolve, reject) => {
+			const target = child || process;
+			if (!target.send) {
+				throw new Error("Not spawned with IPC enabled");
+			}
+			target.on("message", (message) => {
+				if (message === child ? ControlMessage.okFromChild : ControlMessage.okToChild) {
+					target.removeAllListeners();
+					target.on("message", (msg) => this._onMessage.fire(msg));
+					if (child) {
+						target.send!(ControlMessage.okToChild);
+					}
+					resolve();
+				}
+			});
+			if (child) {
+				child.once("error", reject);
+				child.once("exit", (code) => {
+					const error = new Error(`Unexpected exit with code ${code}`);
+					(error as any).code = code;
+					reject(error);
+				});
+			} else {
+				target.send(ControlMessage.okFromChild);
+			}
+		});
+	}
+
+	public relaunch(): void {
+		if (!process.send) {
+			throw new Error("Not a child process with IPC enabled");
+		}
+		process.send("relaunch");
+	}
+}
+
+export const ipcMain = new IpcMain();

src/server.ts

@@ -53,6 +53,7 @@ import { AppInsightsAppender } from "vs/platform/telemetry/node/appInsightsAppen
 import { resolveCommonProperties } from "vs/platform/telemetry/node/commonProperties";
 import { RemoteExtensionLogFileName } from "vs/workbench/services/remote/common/remoteAgentService";
 import { TelemetryChannel } from "vs/platform/telemetry/node/telemetryIpc";
+import { UpdateChannel } from "vs/platform/update/node/updateIpc";
 import { IWorkbenchConstructionOptions } from "vs/workbench/workbench.web.api";
 
 import { Connection, ManagementConnection, ExtensionHostConnection } from "vs/server/src/connection";
@@ -60,6 +61,7 @@ import { ExtensionEnvironmentChannel, FileProviderChannel , } from "vs/server/sr
 import { TelemetryClient } from "vs/server/src/insights";
 import { getNlsConfiguration, getLocaleFromConfig } from "vs/server/src/nls";
 import { Protocol } from "vs/server/src/protocol";
+import { UpdateService } from "vs/server/src/update";
 import { AuthType, getMediaMime, getUriTransformer, localRequire, tmpdir } from "vs/server/src/util";
 
 export enum HttpCode {
@@ -482,7 +484,11 @@ export class MainServer extends Server {
 			REMOTE_USER_DATA_URI: transformer.transformOutgoing(
 				(this.services.get(IEnvironmentService) as EnvironmentService).webUserDataHome,
 			),
-			PRODUCT_CONFIGURATION: product,
+			PRODUCT_CONFIGURATION: {
+				...product,
+				// @ts-ignore workaround for getting the VS Code version to the browser.
+				version: pkg.version,
+			},
 			CONNECTION_AUTH_TOKEN: "",
 			NLS_CONFIGURATION: await getNlsConfiguration(locale, environment.userDataPath),
 		};
@@ -560,14 +566,13 @@ export class MainServer extends Server {
 		this.services.set(IRequestService, new SyncDescriptor(RequestService));
 		this.services.set(IExtensionGalleryService, new SyncDescriptor(ExtensionGalleryService));
 		if (!environmentService.args["disable-telemetry"]) {
-			const version = `${(pkg as any).codeServerVersion || "development"}-vsc${pkg.version}`;
 			this.services.set(ITelemetryService, new SyncDescriptor(TelemetryService, [{
 				appender: combinedAppender(
 					new AppInsightsAppender("code-server", null, () => new TelemetryClient(), logService),
 					new LogAppender(logService),
 				),
 				commonProperties: resolveCommonProperties(
-					product.commit, version, await getMachineId(),
+					product.commit, pkg.codeServerVersion, await getMachineId(),
 					environmentService.installSourcePath, "code-server",
 				),
 				piiPaths: [
@@ -601,6 +606,8 @@ export class MainServer extends Server {
 				this.ipc.registerChannel("gallery", galleryChannel);
 				const telemetryChannel = new TelemetryChannel(telemetryService);
 				this.ipc.registerChannel("telemetry", telemetryChannel);
+				const updateChannel = new UpdateChannel(instantiationService.createInstance(UpdateService));
+				this.ipc.registerChannel("update", updateChannel);
 				resolve(new ErrorTelemetry(telemetryService));
 			});
 		});

src/update.ts

+import * as cp from "child_process";
+import * as os from "os";
+import * as path from "path";
+import * as util from "util";
+import * as zlib from 'zlib';
+
+import { CancellationToken } from "vs/base/common/cancellation";
+import * as pfs from "vs/base/node/pfs";
+import { asJson, download } from "vs/base/node/request";
+import { IConfigurationService } from "vs/platform/configuration/common/configuration";
+import { IEnvironmentService } from "vs/platform/environment/common/environment";
+import { ILogService } from "vs/platform/log/common/log";
+import pkg from "vs/platform/product/node/package";
+import { IRequestService } from "vs/platform/request/node/request";
+import { State, UpdateType, StateType, AvailableForDownload } from "vs/platform/update/common/update";
+import { AbstractUpdateService } from "vs/platform/update/electron-main/abstractUpdateService";
+
+import { ipcMain } from "vs/server/src/ipc";
+import { tmpdir } from "vs/server/src/util";
+import { extract } from "vs/server/src/tar";
+
+interface IUpdate {
+	name: string;
+}
+
+export class UpdateService extends AbstractUpdateService {
+	_serviceBrand: any;
+
+	constructor(
+		@IConfigurationService configurationService: IConfigurationService,
+		@IEnvironmentService environmentService: IEnvironmentService,
+		@IRequestService requestService: IRequestService,
+		@ILogService logService: ILogService
+	) {
+		super(null, configurationService, environmentService, requestService, logService);
+	}
+
+	public async isLatestVersion(): Promise<boolean | undefined> {
+		const latest = await this.getLatestVersion();
+		return !latest || latest.name === pkg.codeServerVersion;
+	}
+
+	protected buildUpdateFeedUrl(): string {
+		return "https://api.github.com/repos/cdr/code-server/releases/latest";
+	}
+
+	protected doQuitAndInstall(): void {
+		ipcMain.relaunch();
+	}
+
+	protected async doCheckForUpdates(context: any): Promise<void> {
+		if (this.state.type !== StateType.Idle) {
+			return Promise.resolve();
+		}
+		this.setState(State.CheckingForUpdates(context));
+		try {
+			const update = await this.getLatestVersion();
+			if (!update || !update.name || update.name === pkg.codeServerVersion) {
+				this.setState(State.Idle(UpdateType.Archive));
+			} else {
+				this.setState(State.AvailableForDownload({
+					version: update.name,
+					productVersion: update.name,
+				}));
+			}
+		} catch (error) {
+			this.onRequestError(error, !!context);
+		}
+	}
+
+	private async getLatestVersion(): Promise<IUpdate | null> {
+		const data = await this.requestService.request({
+			url: this.url,
+			headers: {
+				"User-Agent": "code-server",
+			},
+		}, CancellationToken.None);
+		return asJson(data);
+	}
+
+	protected async doDownloadUpdate(state: AvailableForDownload): Promise<void> {
+		this.setState(State.Updating(state.update));
+		const target = os.platform();
+		const releaseName = await this.buildReleaseName(state.update.version);
+		const url = "https://github.com/cdr/code-server/releases/download/"
+			+ `${state.update.version}/${releaseName}`
+			+ `.${target === "darwin" ? "zip" : "tar.gz"}`;
+		const downloadPath = path.join(tmpdir, `${state.update.version}-archive`);
+		const extractPath = path.join(tmpdir, state.update.version);
+		try {
+			await pfs.mkdirp(tmpdir);
+			const context = await this.requestService.request({ url }, CancellationToken.None);
+			// Decompress the gzip as we download. If the gzip encoding is set then
+			// the request service already does this.
+			if (target !== "darwin" && context.res.headers["content-encoding"] !== "gzip") {
+				context.stream = context.stream.pipe(zlib.createGunzip());
+			}
+			await download(downloadPath, context);
+			await extract(downloadPath, extractPath, undefined, CancellationToken.None);
+			const newBinary = path.join(extractPath, releaseName, "code-server");
+			if (!pfs.exists(newBinary)) {
+				throw new Error("No code-server binary in extracted archive");
+			}
+			await pfs.unlink(process.argv[0]); // Must unlink first to avoid ETXTBSY.
+			await pfs.move(newBinary, process.argv[0]);
+			this.setState(State.Ready(state.update));
+		} catch (error) {
+			this.onRequestError(error, true);
+		}
+		await Promise.all([downloadPath, extractPath].map((p) => pfs.rimraf(p)));
+	}
+
+	private onRequestError(error: Error, showNotification?: boolean): void {
+		this.logService.error(error);
+		const message: string | undefined = showNotification ? (error.message || error.toString()) : undefined;
+		this.setState(State.Idle(UpdateType.Archive, message));
+	}
+
+	private async buildReleaseName(release: string): Promise<string> {
+		let target: string = os.platform();
+		if (target === "linux") {
+			const result = await util.promisify(cp.exec)("ldd --version");
+			if (result.stderr) {
+				throw new Error(result.stderr);
+			}
+			if (result.stdout.indexOf("musl") !== -1) {
+				target = "alpine";
+			}
+		}
+		let arch = os.arch();
+		if (arch === "x64") {
+			arch = "x86_64";
+		}
+		return `code-server${release}-${target}-${arch}`;
+	}
+}