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import * as protocol from "../server/protocol";
import * as ts from "./_namespaces/ts";
import {
ApplyCodeActionCommandResult,
assertType,
CharacterCodes,
combinePaths,
createQueue,
Debug,
directorySeparator,
DirectoryWatcherCallback,
FileWatcher,
getDirectoryPath,
getRootLength,
JsTyping,
LanguageServiceMode,
MapLike,
noop,
noopFileWatcher,
normalizePath,
normalizeSlashes,
perfLogger,
resolveJSModule,
SortedReadonlyArray,
startTracing,
stripQuotes,
sys,
toFileNameLowerCase,
tracing,
TypeAcquisition,
validateLocaleAndSetLanguage,
versionMajorMinor,
WatchOptions,
} from "./_namespaces/ts";
import * as server from "./_namespaces/ts.server";
import {
ActionInvalidate,
ActionPackageInstalled,
ActionSet,
Arguments,
BeginInstallTypes,
createInstallTypingsRequest,
EndInstallTypes,
EventBeginInstallTypes,
EventEndInstallTypes,
EventInitializationFailed,
EventTypesRegistry,
findArgument,
formatMessage,
getLogLevel,
hasArgument,
indent,
InitializationFailedResponse,
InstallPackageOptionsWithProject,
InstallPackageRequest,
InvalidateCachedTypings,
ITypingsInstaller,
Logger,
LogLevel,
ModuleImportResult,
Msg,
nowString,
nullCancellationToken,
nullTypingsInstaller,
PackageInstalledResponse,
Project,
ProjectService,
ServerCancellationToken,
ServerHost,
Session,
SetTypings,
StartInput,
StartSessionOptions,
stringifyIndented,
toEvent,
TypesRegistryResponse,
TypingInstallerRequestUnion,
} from "./_namespaces/ts.server";
interface LogOptions {
file?: string;
detailLevel?: LogLevel;
traceToConsole?: boolean;
logToFile?: boolean;
}
interface NodeChildProcess {
send(message: any, sendHandle?: any): void;
on(message: "message" | "exit", f: (m: any) => void): void;
kill(): void;
pid: number;
}
interface ReadLineOptions {
input: NodeJS.ReadableStream;
output?: NodeJS.WritableStream;
terminal?: boolean;
historySize?: number;
}
interface NodeSocket {
write(data: string, encoding: string): boolean;
}
function parseLoggingEnvironmentString(logEnvStr: string | undefined): LogOptions {
if (!logEnvStr) {
return {};
}
const logEnv: LogOptions = { logToFile: true };
const args = logEnvStr.split(" ");
const len = args.length - 1;
for (let i = 0; i < len; i += 2) {
const option = args[i];
const { value, extraPartCounter } = getEntireValue(i + 1);
i += extraPartCounter;
if (option && value) {
switch (option) {
case "-file":
logEnv.file = value;
break;
case "-level":
const level = getLogLevel(value);
logEnv.detailLevel = level !== undefined ? level : LogLevel.normal;
break;
case "-traceToConsole":
logEnv.traceToConsole = value.toLowerCase() === "true";
break;
case "-logToFile":
logEnv.logToFile = value.toLowerCase() === "true";
break;
}
}
}
return logEnv;
function getEntireValue(initialIndex: number) {
let pathStart = args[initialIndex];
let extraPartCounter = 0;
if (pathStart.charCodeAt(0) === CharacterCodes.doubleQuote &&
pathStart.charCodeAt(pathStart.length - 1) !== CharacterCodes.doubleQuote) {
for (let i = initialIndex + 1; i < args.length; i++) {
pathStart += " ";
pathStart += args[i];
extraPartCounter++;
if (pathStart.charCodeAt(pathStart.length - 1) === CharacterCodes.doubleQuote) break;
}
}
return { value: stripQuotes(pathStart), extraPartCounter };
}
}
function parseServerMode(): LanguageServiceMode | string | undefined {
const mode = findArgument("--serverMode");
if (!mode) return undefined;
switch (mode.toLowerCase()) {
case "semantic":
return LanguageServiceMode.Semantic;
case "partialsemantic":
return LanguageServiceMode.PartialSemantic;
case "syntactic":
return LanguageServiceMode.Syntactic;
default:
return mode;
}
}
/** @internal */
export function initializeNodeSystem(): StartInput {
const sys = Debug.checkDefined(ts.sys) as ServerHost;
const childProcess: {
execFileSync(file: string, args: string[], options: { stdio: "ignore", env: MapLike<string> }): string | Buffer;
} = require("child_process");
interface Stats {
isFile(): boolean;
isDirectory(): boolean;
isBlockDevice(): boolean;
isCharacterDevice(): boolean;
isSymbolicLink(): boolean;
isFIFO(): boolean;
isSocket(): boolean;
dev: number;
ino: number;
mode: number;
nlink: number;
uid: number;
gid: number;
rdev: number;
size: number;
blksize: number;
blocks: number;
atime: Date;
mtime: Date;
ctime: Date;
birthtime: Date;
}
const fs: {
openSync(path: string, options: string): number;
close(fd: number, callback: (err: NodeJS.ErrnoException) => void): void;
writeSync(fd: number, buffer: Buffer, offset: number, length: number, position?: number): number;
statSync(path: string): Stats;
stat(path: string, callback?: (err: NodeJS.ErrnoException, stats: Stats) => any): void;
} = require("fs");
class Logger implements Logger {
private seq = 0;
private inGroup = false;
private firstInGroup = true;
private fd = -1;
constructor(
private readonly logFilename: string,
private readonly traceToConsole: boolean,
private readonly level: LogLevel
) {
if (this.logFilename) {
try {
this.fd = fs.openSync(this.logFilename, "w");
}
catch (_) {
// swallow the error and keep logging disabled if file cannot be opened
}
}
}
static padStringRight(str: string, padding: string) {
return (str + padding).slice(0, padding.length);
}
close() {
if (this.fd >= 0) {
fs.close(this.fd, noop);
}
}
getLogFileName(): string | undefined {
return this.logFilename;
}
perftrc(s: string) {
this.msg(s, Msg.Perf);
}
info(s: string) {
this.msg(s, Msg.Info);
}
err(s: string) {
this.msg(s, Msg.Err);
}
startGroup() {
this.inGroup = true;
this.firstInGroup = true;
}
endGroup() {
this.inGroup = false;
}
loggingEnabled() {
return !!this.logFilename || this.traceToConsole;
}
hasLevel(level: LogLevel) {
return this.loggingEnabled() && this.level >= level;
}
msg(s: string, type: Msg = Msg.Err) {
switch (type) {
case Msg.Info:
perfLogger?.logInfoEvent(s);
break;
case Msg.Perf:
perfLogger?.logPerfEvent(s);
break;
default: // Msg.Err
perfLogger?.logErrEvent(s);
break;
}
if (!this.canWrite()) return;
s = `[${nowString()}] ${s}\n`;
if (!this.inGroup || this.firstInGroup) {
const prefix = Logger.padStringRight(type + " " + this.seq.toString(), " ");
s = prefix + s;
}
this.write(s, type);
if (!this.inGroup) {
this.seq++;
}
}
protected canWrite() {
return this.fd >= 0 || this.traceToConsole;
}
protected write(s: string, _type: Msg) {
if (this.fd >= 0) {
const buf = sys.bufferFrom!(s);
// eslint-disable-next-line no-null/no-null
fs.writeSync(this.fd, buf as globalThis.Buffer, 0, buf.length, /*position*/ null!); // TODO: GH#18217
}
if (this.traceToConsole) {
console.warn(s);
}
}
}
const libDirectory = getDirectoryPath(normalizePath(sys.getExecutingFilePath()));
const useWatchGuard = process.platform === "win32";
const originalWatchDirectory: ServerHost["watchDirectory"] = sys.watchDirectory.bind(sys);
const logger = createLogger();
// enable deprecation logging
Debug.loggingHost = {
log(level, s) {
switch (level) {
case ts.LogLevel.Error:
case ts.LogLevel.Warning:
return logger.msg(s, Msg.Err);
case ts.LogLevel.Info:
case ts.LogLevel.Verbose:
return logger.msg(s, Msg.Info);
}
}
};
const pending = createQueue<Buffer>();
let canWrite = true;
if (useWatchGuard) {
const currentDrive = extractWatchDirectoryCacheKey(sys.resolvePath(sys.getCurrentDirectory()), /*currentDriveKey*/ undefined);
const statusCache = new Map<string, boolean>();
sys.watchDirectory = (path, callback, recursive, options) => {
const cacheKey = extractWatchDirectoryCacheKey(path, currentDrive);
let status = cacheKey && statusCache.get(cacheKey);
if (status === undefined) {
if (logger.hasLevel(LogLevel.verbose)) {
logger.info(`${cacheKey} for path ${path} not found in cache...`);
}
try {
const args = [combinePaths(libDirectory, "watchGuard.js"), path];
if (logger.hasLevel(LogLevel.verbose)) {
logger.info(`Starting ${process.execPath} with args:${stringifyIndented(args)}`);
}
childProcess.execFileSync(process.execPath, args, { stdio: "ignore", env: { ELECTRON_RUN_AS_NODE: "1" } });
status = true;
if (logger.hasLevel(LogLevel.verbose)) {
logger.info(`WatchGuard for path ${path} returned: OK`);
}
}
catch (e) {
status = false;
if (logger.hasLevel(LogLevel.verbose)) {
logger.info(`WatchGuard for path ${path} returned: ${e.message}`);
}
}
if (cacheKey) {
statusCache.set(cacheKey, status);
}
}
else if (logger.hasLevel(LogLevel.verbose)) {
logger.info(`watchDirectory for ${path} uses cached drive information.`);
}
if (status) {
// this drive is safe to use - call real 'watchDirectory'
return watchDirectorySwallowingException(path, callback, recursive, options);
}
else {
// this drive is unsafe - return no-op watcher
return noopFileWatcher;
}
};
}
else {
sys.watchDirectory = watchDirectorySwallowingException;
}
// Override sys.write because fs.writeSync is not reliable on Node 4
sys.write = (s: string) => writeMessage(sys.bufferFrom!(s, "utf8") as globalThis.Buffer);
/* eslint-disable no-restricted-globals */
sys.setTimeout = setTimeout;
sys.clearTimeout = clearTimeout;
sys.setImmediate = setImmediate;
sys.clearImmediate = clearImmediate;
/* eslint-enable no-restricted-globals */
if (typeof global !== "undefined" && global.gc) {
sys.gc = () => global.gc?.();
}
sys.require = (initialDir: string, moduleName: string): ModuleImportResult => {
try {
return { module: require(resolveJSModule(moduleName, initialDir, sys)), error: undefined };
}
catch (error) {
return { module: undefined, error };
}
};
let cancellationToken: ServerCancellationToken;
try {
const factory = require("./cancellationToken");
cancellationToken = factory(sys.args);
}
catch (e) {
cancellationToken = nullCancellationToken;
}
const localeStr = findArgument("--locale");
if (localeStr) {
validateLocaleAndSetLanguage(localeStr, sys);
}
const modeOrUnknown = parseServerMode();
let serverMode: LanguageServiceMode | undefined;
let unknownServerMode: string | undefined;
if (modeOrUnknown !== undefined) {
if (typeof modeOrUnknown === "number") serverMode = modeOrUnknown;
else unknownServerMode = modeOrUnknown;
}
return {
args: process.argv,
logger,
cancellationToken,
serverMode,
unknownServerMode,
startSession: startNodeSession
};
// TSS_LOG "{ level: "normal | verbose | terse", file?: string}"
function createLogger() {
const cmdLineLogFileName = findArgument("--logFile");
const cmdLineVerbosity = getLogLevel(findArgument("--logVerbosity"));
const envLogOptions = parseLoggingEnvironmentString(process.env.TSS_LOG);
const unsubstitutedLogFileName = cmdLineLogFileName
? stripQuotes(cmdLineLogFileName)
: envLogOptions.logToFile
? envLogOptions.file || (libDirectory + "/.log" + process.pid.toString())
: undefined;
const substitutedLogFileName = unsubstitutedLogFileName
? unsubstitutedLogFileName.replace("PID", process.pid.toString())
: undefined;
const logVerbosity = cmdLineVerbosity || envLogOptions.detailLevel;
return new Logger(substitutedLogFileName!, envLogOptions.traceToConsole!, logVerbosity!); // TODO: GH#18217
}
function writeMessage(buf: Buffer) {
if (!canWrite) {
pending.enqueue(buf);
}
else {
canWrite = false;
process.stdout.write(buf, setCanWriteFlagAndWriteMessageIfNecessary);
}
}
function setCanWriteFlagAndWriteMessageIfNecessary() {
canWrite = true;
if (!pending.isEmpty()) {
writeMessage(pending.dequeue());
}
}
function extractWatchDirectoryCacheKey(path: string, currentDriveKey: string | undefined) {
path = normalizeSlashes(path);
if (isUNCPath(path)) {
// UNC path: extract server name
// //server/location
// ^ <- from 0 to this position
const firstSlash = path.indexOf(directorySeparator, 2);
return firstSlash !== -1 ? toFileNameLowerCase(path.substring(0, firstSlash)) : path;
}
const rootLength = getRootLength(path);
if (rootLength === 0) {
// relative path - assume file is on the current drive
return currentDriveKey;
}
if (path.charCodeAt(1) === CharacterCodes.colon && path.charCodeAt(2) === CharacterCodes.slash) {
// rooted path that starts with c:/... - extract drive letter
return toFileNameLowerCase(path.charAt(0));
}
if (path.charCodeAt(0) === CharacterCodes.slash && path.charCodeAt(1) !== CharacterCodes.slash) {
// rooted path that starts with slash - /somename - use key for current drive
return currentDriveKey;
}
// do not cache any other cases
return undefined;
}
function isUNCPath(s: string): boolean {
return s.length > 2 && s.charCodeAt(0) === CharacterCodes.slash && s.charCodeAt(1) === CharacterCodes.slash;
}
// This is the function that catches the exceptions when watching directory, and yet lets project service continue to function
// Eg. on linux the number of watches are limited and one could easily exhaust watches and the exception ENOSPC is thrown when creating watcher at that point
function watchDirectorySwallowingException(path: string, callback: DirectoryWatcherCallback, recursive?: boolean, options?: WatchOptions): FileWatcher {
try {
return originalWatchDirectory(path, callback, recursive, options);
}
catch (e) {
logger.info(`Exception when creating directory watcher: ${e.message}`);
return noopFileWatcher;
}
}
}
function parseEventPort(eventPortStr: string | undefined) {
const eventPort = eventPortStr === undefined ? undefined : parseInt(eventPortStr);
return eventPort !== undefined && !isNaN(eventPort) ? eventPort : undefined;
}
function startNodeSession(options: StartSessionOptions, logger: Logger, cancellationToken: ServerCancellationToken) {
const childProcess: {
fork(modulePath: string, args: string[], options?: { execArgv: string[], env?: MapLike<string> }): NodeChildProcess;
} = require("child_process");
const os: {
homedir?(): string;
tmpdir(): string;
} = require("os");
const net: {
connect(options: { port: number }, onConnect?: () => void): NodeSocket
} = require("net");
const readline: {
createInterface(options: ReadLineOptions): NodeJS.EventEmitter;
} = require("readline");
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout,
terminal: false,
});
interface QueuedOperation {
operationId: string;
operation: () => void;
}
class NodeTypingsInstaller implements ITypingsInstaller {
private installer!: NodeChildProcess;
private projectService!: ProjectService;
private activeRequestCount = 0;
private requestQueue = createQueue<QueuedOperation>();
private requestMap = new Map<string, QueuedOperation>(); // Maps operation ID to newest requestQueue entry with that ID
/** We will lazily request the types registry on the first call to `isKnownTypesPackageName` and store it in `typesRegistryCache`. */
private requestedRegistry = false;
private typesRegistryCache: Map<string, MapLike<string>> | undefined;
// This number is essentially arbitrary. Processing more than one typings request
// at a time makes sense, but having too many in the pipe results in a hang
// (see https://github.com/nodejs/node/issues/7657).
// It would be preferable to base our limit on the amount of space left in the
// buffer, but we have yet to find a way to retrieve that value.
private static readonly maxActiveRequestCount = 10;
private static readonly requestDelayMillis = 100;
private packageInstalledPromise: { resolve(value: ApplyCodeActionCommandResult): void, reject(reason: unknown): void } | undefined;
constructor(
private readonly telemetryEnabled: boolean,
private readonly logger: Logger,
private readonly host: ServerHost,
readonly globalTypingsCacheLocation: string,
readonly typingSafeListLocation: string,
readonly typesMapLocation: string,
private readonly npmLocation: string | undefined,
private readonly validateDefaultNpmLocation: boolean,
private event: server.Event) {
}
isKnownTypesPackageName(name: string): boolean {
// We want to avoid looking this up in the registry as that is expensive. So first check that it's actually an NPM package.
const validationResult = JsTyping.validatePackageName(name);
if (validationResult !== JsTyping.NameValidationResult.Ok) {
return false;
}
if (this.requestedRegistry) {
return !!this.typesRegistryCache && this.typesRegistryCache.has(name);
}
this.requestedRegistry = true;
this.send({ kind: "typesRegistry" });
return false;
}
installPackage(options: InstallPackageOptionsWithProject): Promise<ApplyCodeActionCommandResult> {
this.send<InstallPackageRequest>({ kind: "installPackage", ...options });
Debug.assert(this.packageInstalledPromise === undefined);
return new Promise<ApplyCodeActionCommandResult>((resolve, reject) => {
this.packageInstalledPromise = { resolve, reject };
});
}
attach(projectService: ProjectService) {
this.projectService = projectService;
if (this.logger.hasLevel(LogLevel.requestTime)) {
this.logger.info("Binding...");
}
const args: string[] = [Arguments.GlobalCacheLocation, this.globalTypingsCacheLocation];
if (this.telemetryEnabled) {
args.push(Arguments.EnableTelemetry);
}
if (this.logger.loggingEnabled() && this.logger.getLogFileName()) {
args.push(Arguments.LogFile, combinePaths(getDirectoryPath(normalizeSlashes(this.logger.getLogFileName()!)), `ti-${process.pid}.log`));
}
if (this.typingSafeListLocation) {
args.push(Arguments.TypingSafeListLocation, this.typingSafeListLocation);
}
if (this.typesMapLocation) {
args.push(Arguments.TypesMapLocation, this.typesMapLocation);
}
if (this.npmLocation) {
args.push(Arguments.NpmLocation, this.npmLocation);
}
if (this.validateDefaultNpmLocation) {
args.push(Arguments.ValidateDefaultNpmLocation);
}
const execArgv: string[] = [];
for (const arg of process.execArgv) {
const match = /^--((?:debug|inspect)(?:-brk)?)(?:=(\d+))?$/.exec(arg);
if (match) {
// if port is specified - use port + 1
// otherwise pick a default port depending on if 'debug' or 'inspect' and use its value + 1
const currentPort = match[2] !== undefined
? +match[2]
: match[1].charAt(0) === "d" ? 5858 : 9229;
execArgv.push(`--${match[1]}=${currentPort + 1}`);
break;
}
}
const typingsInstaller = combinePaths(getDirectoryPath(sys.getExecutingFilePath()), "typingsInstaller.js");
this.installer = childProcess.fork(typingsInstaller, args, { execArgv });
this.installer.on("message", m => this.handleMessage(m));
// We have to schedule this event to the next tick
// cause this fn will be called during
// new IOSession => super(which is Session) => new ProjectService => NodeTypingsInstaller.attach
// and if "event" is referencing "this" before super class is initialized, it will be a ReferenceError in ES6 class.
this.host.setImmediate(() => this.event({ pid: this.installer.pid }, "typingsInstallerPid"));
process.on("exit", () => {
this.installer.kill();
});
}
onProjectClosed(p: Project): void {
this.send({ projectName: p.getProjectName(), kind: "closeProject" });
}
private send<T extends TypingInstallerRequestUnion>(rq: T): void {
this.installer.send(rq);
}
enqueueInstallTypingsRequest(project: Project, typeAcquisition: TypeAcquisition, unresolvedImports: SortedReadonlyArray<string>): void {
const request = createInstallTypingsRequest(project, typeAcquisition, unresolvedImports);
if (this.logger.hasLevel(LogLevel.verbose)) {
if (this.logger.hasLevel(LogLevel.verbose)) {
this.logger.info(`Scheduling throttled operation:${stringifyIndented(request)}`);
}
}
const operationId = project.getProjectName();
const operation = () => {
if (this.logger.hasLevel(LogLevel.verbose)) {
this.logger.info(`Sending request:${stringifyIndented(request)}`);
}
this.send(request);
};
const queuedRequest: QueuedOperation = { operationId, operation };
if (this.activeRequestCount < NodeTypingsInstaller.maxActiveRequestCount) {
this.scheduleRequest(queuedRequest);
}
else {
if (this.logger.hasLevel(LogLevel.verbose)) {
this.logger.info(`Deferring request for: ${operationId}`);
}
this.requestQueue.enqueue(queuedRequest);
this.requestMap.set(operationId, queuedRequest);
}
}
private handleMessage(response: TypesRegistryResponse | PackageInstalledResponse | SetTypings | InvalidateCachedTypings | BeginInstallTypes | EndInstallTypes | InitializationFailedResponse) {
if (this.logger.hasLevel(LogLevel.verbose)) {
this.logger.info(`Received response:${stringifyIndented(response)}`);
}
switch (response.kind) {
case EventTypesRegistry:
this.typesRegistryCache = new Map(Object.entries(response.typesRegistry));
break;
case ActionPackageInstalled: {
const { success, message } = response;
if (success) {
this.packageInstalledPromise!.resolve({ successMessage: message });
}
else {
this.packageInstalledPromise!.reject(message);
}
this.packageInstalledPromise = undefined;
this.projectService.updateTypingsForProject(response);
// The behavior is the same as for setTypings, so send the same event.
this.event(response, "setTypings");
break;
}
case EventInitializationFailed: {
const body: protocol.TypesInstallerInitializationFailedEventBody = {
message: response.message
};
const eventName: protocol.TypesInstallerInitializationFailedEventName = "typesInstallerInitializationFailed";
this.event(body, eventName);
break;
}
case EventBeginInstallTypes: {
const body: protocol.BeginInstallTypesEventBody = {
eventId: response.eventId,
packages: response.packagesToInstall,
};
const eventName: protocol.BeginInstallTypesEventName = "beginInstallTypes";
this.event(body, eventName);
break;
}
case EventEndInstallTypes: {
if (this.telemetryEnabled) {
const body: protocol.TypingsInstalledTelemetryEventBody = {
telemetryEventName: "typingsInstalled",
payload: {
installedPackages: response.packagesToInstall.join(","),
installSuccess: response.installSuccess,
typingsInstallerVersion: response.typingsInstallerVersion
}
};
const eventName: protocol.TelemetryEventName = "telemetry";
this.event(body, eventName);
}
const body: protocol.EndInstallTypesEventBody = {
eventId: response.eventId,
packages: response.packagesToInstall,
success: response.installSuccess,
};
const eventName: protocol.EndInstallTypesEventName = "endInstallTypes";
this.event(body, eventName);
break;
}
case ActionInvalidate: {
this.projectService.updateTypingsForProject(response);
break;
}
case ActionSet: {
if (this.activeRequestCount > 0) {
this.activeRequestCount--;
}
else {
Debug.fail("Received too many responses");
}
while (!this.requestQueue.isEmpty()) {
const queuedRequest = this.requestQueue.dequeue();
if (this.requestMap.get(queuedRequest.operationId) === queuedRequest) {
this.requestMap.delete(queuedRequest.operationId);
this.scheduleRequest(queuedRequest);
break;
}
if (this.logger.hasLevel(LogLevel.verbose)) {
this.logger.info(`Skipping defunct request for: ${queuedRequest.operationId}`);
}
}
this.projectService.updateTypingsForProject(response);
this.event(response, "setTypings");
break;
}
default:
assertType<never>(response);
}
}
private scheduleRequest(request: QueuedOperation) {
if (this.logger.hasLevel(LogLevel.verbose)) {
this.logger.info(`Scheduling request for: ${request.operationId}`);
}
this.activeRequestCount++;
this.host.setTimeout(request.operation, NodeTypingsInstaller.requestDelayMillis);
}
}
class IOSession extends Session {
private eventPort: number | undefined;
private eventSocket: NodeSocket | undefined;
private socketEventQueue: { body: any, eventName: string }[] | undefined;
/** No longer needed if syntax target is es6 or above. Any access to "this" before initialized will be a runtime error. */
private constructed: boolean | undefined;
constructor() {
const event = (body: object, eventName: string) => {
this.event(body, eventName);
};
const host = sys as ServerHost;
const typingsInstaller = disableAutomaticTypingAcquisition
? undefined
: new NodeTypingsInstaller(telemetryEnabled, logger, host, getGlobalTypingsCacheLocation(), typingSafeListLocation, typesMapLocation, npmLocation, validateDefaultNpmLocation, event);
super({
host,
cancellationToken,
...options,
typingsInstaller: typingsInstaller || nullTypingsInstaller,
byteLength: Buffer.byteLength,
hrtime: process.hrtime,
logger,
canUseEvents: true,
typesMapLocation,
});
this.eventPort = eventPort;
if (this.canUseEvents && this.eventPort) {
const s = net.connect({ port: this.eventPort }, () => {
this.eventSocket = s;
if (this.socketEventQueue) {
// flush queue.
for (const event of this.socketEventQueue) {
this.writeToEventSocket(event.body, event.eventName);
}
this.socketEventQueue = undefined;
}
});
}
this.constructed = true;
}
override event<T extends object>(body: T, eventName: string): void {
Debug.assert(!!this.constructed, "Should only call `IOSession.prototype.event` on an initialized IOSession");
if (this.canUseEvents && this.eventPort) {
if (!this.eventSocket) {
if (this.logger.hasLevel(LogLevel.verbose)) {
this.logger.info(`eventPort: event "${eventName}" queued, but socket not yet initialized`);
}
(this.socketEventQueue || (this.socketEventQueue = [])).push({ body, eventName });
return;
}
else {
Debug.assert(this.socketEventQueue === undefined);
this.writeToEventSocket(body, eventName);
}
}
else {
super.event(body, eventName);
}
}
private writeToEventSocket(body: object, eventName: string): void {
this.eventSocket!.write(formatMessage(toEvent(eventName, body), this.logger, this.byteLength, this.host.newLine), "utf8");
}
override exit() {
this.logger.info("Exiting...");
this.projectService.closeLog();
tracing?.stopTracing();
process.exit(0);
}
listen() {
rl.on("line", (input: string) => {
const message = input.trim();
this.onMessage(message);
});
rl.on("close", () => {
this.exit();
});
}
}
class IpcIOSession extends IOSession {
protected override writeMessage(msg: protocol.Message): void {
const verboseLogging = logger.hasLevel(LogLevel.verbose);
if (verboseLogging) {
const json = JSON.stringify(msg);
logger.info(`${msg.type}:${indent(json)}`);
}
process.send!(msg);
}
protected override parseMessage(message: any): protocol.Request {
return message as protocol.Request;
}
protected override toStringMessage(message: any) {
return JSON.stringify(message, undefined, 2);
}
public override listen() {
process.on("message", (e: any) => {
this.onMessage(e);
});
process.on("disconnect", () => {
this.exit();
});
}
}
const eventPort: number | undefined = parseEventPort(findArgument("--eventPort"));
const typingSafeListLocation = findArgument(Arguments.TypingSafeListLocation)!; // TODO: GH#18217
const typesMapLocation = findArgument(Arguments.TypesMapLocation) || combinePaths(getDirectoryPath(sys.getExecutingFilePath()), "typesMap.json");
const npmLocation = findArgument(Arguments.NpmLocation);
const validateDefaultNpmLocation = hasArgument(Arguments.ValidateDefaultNpmLocation);
const disableAutomaticTypingAcquisition = hasArgument("--disableAutomaticTypingAcquisition");
const useNodeIpc = hasArgument("--useNodeIpc");
const telemetryEnabled = hasArgument(Arguments.EnableTelemetry);
const commandLineTraceDir = findArgument("--traceDirectory");
const traceDir = commandLineTraceDir
? stripQuotes(commandLineTraceDir)
: process.env.TSS_TRACE;
if (traceDir) {
startTracing("server", traceDir);
}
const ioSession = useNodeIpc ? new IpcIOSession() : new IOSession();
process.on("uncaughtException", err => {
ioSession.logError(err, "unknown");
});
// See https://github.com/Microsoft/TypeScript/issues/11348
(process as any).noAsar = true;
// Start listening
ioSession.listen();
function getGlobalTypingsCacheLocation() {
switch (process.platform) {
case "win32": {
const basePath = process.env.LOCALAPPDATA ||
process.env.APPDATA ||
(os.homedir && os.homedir()) ||
process.env.USERPROFILE ||
(process.env.HOMEDRIVE && process.env.HOMEPATH && normalizeSlashes(process.env.HOMEDRIVE + process.env.HOMEPATH)) ||
os.tmpdir();
return combinePaths(combinePaths(normalizeSlashes(basePath), "Microsoft/TypeScript"), versionMajorMinor);
}
case "openbsd":
case "freebsd":
case "netbsd":
case "darwin":
case "linux":
case "android": {
const cacheLocation = getNonWindowsCacheLocation(process.platform === "darwin");
return combinePaths(combinePaths(cacheLocation, "typescript"), versionMajorMinor);
}
default:
return Debug.fail(`unsupported platform '${process.platform}'`);
}
}
function getNonWindowsCacheLocation(platformIsDarwin: boolean) {
if (process.env.XDG_CACHE_HOME) {
return process.env.XDG_CACHE_HOME;
}
const usersDir = platformIsDarwin ? "Users" : "home";
const homePath = (os.homedir && os.homedir()) ||
process.env.HOME ||
((process.env.LOGNAME || process.env.USER) && `/${usersDir}/${process.env.LOGNAME || process.env.USER}`) ||
os.tmpdir();
const cacheFolder = platformIsDarwin
? "Library/Caches"
: ".cache";
return combinePaths(normalizeSlashes(homePath), cacheFolder);
}
}