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/*---------------------------------------------------------------------------------------------

* Copyright (c) Microsoft Corporation. All rights reserved.

* Licensed under the MIT License. See License.txt in the project root for license information.

*--------------------------------------------------------------------------------------------*/

import * as performance from './vs/base/common/performance.js';

import { removeGlobalNodeJsModuleLookupPaths, devInjectNodeModuleLookupPath } from './bootstrap-node.js';

import { bootstrapESM } from './bootstrap-esm.js';

import { enableNodeCompileCache, getNodeCompileCacheKindForUtilityProcess } from './vs/base/node/nodeCompileCache.js';

performance.mark('code/fork/start');

const nodeCompileCacheKind = getNodeCompileCacheKindForUtilityProcess(process.env['VSCODE_CRASH_REPORTER_PROCESS_TYPE'] ?? '');

const esmEntryPoint = process.env['VSCODE_ESM_ENTRYPOINT'];

if (nodeCompileCacheKind && esmEntryPoint) {

enableNodeCompileCache(nodeCompileCacheKind);

}

//#region Helpers

function pipeLoggingToParent(): void {

const MAX_STREAM_BUFFER_LENGTH = 1024 * 1024;

const MAX_LENGTH = 100000;

/**

* Prevent circular stringify and convert arguments to real array

*/

function safeToString(args: ArrayLike<unknown>): string {

const seen: unknown[] = [];

const argsArray: unknown[] = [];

// Massage some arguments with special treatment

if (args.length) {

for (let i = 0; i < args.length; i++) {

let arg = args[i];

// Any argument of type 'undefined' needs to be specially treated because

// JSON.stringify will simply ignore those. We replace them with the string

// 'undefined' which is not 100% right, but good enough to be logged to console

if (typeof arg === 'undefined') {

arg = 'undefined';

}

// Any argument that is an Error will be changed to be just the error stack/message

// itself because currently cannot serialize the error over entirely.

else if (arg instanceof Error) {

const errorObj = arg;

if (errorObj.stack) {

arg = errorObj.stack;

} else {

arg = errorObj.toString();

}

}

argsArray.push(arg);

}

}

try {

const res = JSON.stringify(argsArray, function (key, value: unknown) {

// Objects get special treatment to prevent circles

if (isObject(value) || Array.isArray(value)) {

if (seen.indexOf(value) !== -1) {

return '[Circular]';

}

seen.push(value);

}

return value;

});

if (res.length > MAX_LENGTH) {

return 'Output omitted for a large object that exceeds the limits';

}

return res;

} catch (error) {

return `Output omitted for an object that cannot be inspected ('${error.toString()}')`;

}

}

function safeSend(arg: { type: string; severity: string; arguments: string }): void {

try {

if (process.send) {

process.send(arg);

}

} catch (error) {

// Can happen if the parent channel is closed meanwhile

}

}

function isObject(obj: unknown): boolean {

return typeof obj === 'object'

&& obj !== null

&& !Array.isArray(obj)

&& !(obj instanceof RegExp)

&& !(obj instanceof Date);

}

function safeSendConsoleMessage(severity: 'log' | 'warn' | 'error', args: string): void {

safeSend({ type: '__$console', severity, arguments: args });

}

/**

* Wraps a console message so that it is transmitted to the renderer.

*

* The wrapped property is not defined with `writable: false` to avoid

* throwing errors, but rather a no-op setting. See https://github.com/microsoft/vscode-extension-telemetry/issues/88

*/

function wrapConsoleMethod(method: 'log' | 'info' | 'warn' | 'error', severity: 'log' | 'warn' | 'error'): void {

Object.defineProperty(console, method, {

set: () => { },

get: () => function () { safeSendConsoleMessage(severity, safeToString(arguments)); },

});

}

/**

* Wraps process.stderr/stdout.write() so that it is transmitted to the

* renderer or CLI. It both calls through to the original method as well

* as to console.log with complete lines so that they're made available

* to the debugger/CLI.

*/

function wrapStream(streamName: 'stdout' | 'stderr', severity: 'log' | 'warn' | 'error'): void {

const stream = process[streamName];

const original = stream.write;

let buf = '';

Object.defineProperty(stream, 'write', {

set: () => { },

get: () => (chunk: string | Buffer | Uint8Array, encoding: BufferEncoding | undefined, callback: ((err?: Error | null) => void) | undefined) => {

buf += chunk.toString(encoding);

const eol = buf.length > MAX_STREAM_BUFFER_LENGTH ? buf.length : buf.lastIndexOf('\n');

if (eol !== -1) {

console[severity](buf.slice(0, eol));

buf = buf.slice(eol + 1);

}

original.call(stream, chunk, encoding, callback);

},

});

}

// Pass console logging to the outside so that we have it in the main side if told so

if (process.env['VSCODE_VERBOSE_LOGGING'] === 'true') {

wrapConsoleMethod('info', 'log');

wrapConsoleMethod('log', 'log');

wrapConsoleMethod('warn', 'warn');

wrapConsoleMethod('error', 'error');

} else {

console.log = function () { /* ignore */ };

console.warn = function () { /* ignore */ };

console.info = function () { /* ignore */ };

wrapConsoleMethod('error', 'error');

}

wrapStream('stderr', 'error');

wrapStream('stdout', 'log');

}

function handleExceptions(): void {

// Handle uncaught exceptions

process.on('uncaughtException', function (err) {

console.error('Uncaught Exception: ', err);

});

// Handle unhandled promise rejections

process.on('unhandledRejection', function (reason) {

console.error('Unhandled Promise Rejection: ', reason);

});

}

function terminateWhenParentTerminates(): void {

const parentPid = Number(process.env['VSCODE_PARENT_PID']);

if (typeof parentPid === 'number' && !isNaN(parentPid)) {

setInterval(function () {

try {

process.kill(parentPid, 0); // throws an exception if the main process doesn't exist anymore.

} catch (e) {

process.exit();

}

}, 5000);

}

}

function configureCrashReporter(): void {

const crashReporterProcessType = process.env['VSCODE_CRASH_REPORTER_PROCESS_TYPE'];

if (crashReporterProcessType) {

try {

//@ts-expect-error

if (process['crashReporter'] && typeof process['crashReporter'].addExtraParameter === 'function' /* Electron only */) {

//@ts-expect-error

process['crashReporter'].addExtraParameter('processType', crashReporterProcessType);

}

} catch (error) {

console.error(error);

}

}

}

//#endregion

// Crash reporter

configureCrashReporter();

// Remove global paths from the node module lookup (node.js only)

removeGlobalNodeJsModuleLookupPaths();

if (process.env['VSCODE_DEV_INJECT_NODE_MODULE_LOOKUP_PATH']) {

devInjectNodeModuleLookupPath(process.env['VSCODE_DEV_INJECT_NODE_MODULE_LOOKUP_PATH']);

}

// Configure: pipe logging to parent process

if (!!process.send && process.env['VSCODE_PIPE_LOGGING'] === 'true') {

pipeLoggingToParent();

}

// Handle Exceptions

if (!process.env['VSCODE_HANDLES_UNCAUGHT_ERRORS']) {

handleExceptions();

}

// Terminate when parent terminates

if (process.env['VSCODE_PARENT_PID']) {

terminateWhenParentTerminates();

}

// Bootstrap ESM

await bootstrapESM();

// Load ESM entry point

await import([`./${esmEntryPoint}.js`].join('/') /* workaround: esbuild prints some strange warnings when trying to inline? */);