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159x 159x 145x 145x 159x 112x 112x 112x 112x 112x 112x 112x 112x 112x 112x 112x 112x 112x 112x 112x 112x 112x 112x 112x 112x 32x 32x 32x 32x 32x 32x 32x 32x 32x 32x 32x 32x 32x 26x 26x 32x 112x 112x 3539x 3539x 15x 15x 3539x 112x 112x 1588x 1588x 9x 9x 9x 9x 1588x 112x 112x 3510x 3510x 786x 3144x 5x 5x 5x 5x 3510x 112x 112x 112x 112x 112x 112x 112x 112x 112x 112x 112x 112x | // Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
const {
ArrayIsArray,
ArrayPrototypeFilter,
ArrayPrototypeIncludes,
ArrayPrototypeJoin,
ArrayPrototypeLastIndexOf,
ArrayPrototypePush,
ArrayPrototypeSlice,
ArrayPrototypeSort,
ArrayPrototypeSplice,
ArrayPrototypeUnshift,
ArrayPrototypePushApply,
NumberIsInteger,
ObjectAssign,
ObjectDefineProperty,
ObjectPrototypeHasOwnProperty,
RegExpPrototypeExec,
SafeSet,
StringPrototypeSlice,
StringPrototypeToUpperCase,
} = primordials;
const {
convertToValidSignal,
createDeferredPromise,
getSystemErrorName,
kEmptyObject,
promisify,
} = require('internal/util');
const { isArrayBufferView } = require('internal/util/types');
let debug = require('internal/util/debuglog').debuglog(
'child_process',
(fn) => {
debug = fn;
}
);
const { Buffer } = require('buffer');
const { Pipe, constants: PipeConstants } = internalBinding('pipe_wrap');
const {
AbortError,
codes: errorCodes,
genericNodeError,
} = require('internal/errors');
const {
ERR_INVALID_ARG_VALUE,
ERR_CHILD_PROCESS_IPC_REQUIRED,
ERR_CHILD_PROCESS_STDIO_MAXBUFFER,
ERR_INVALID_ARG_TYPE,
ERR_OUT_OF_RANGE,
} = errorCodes;
const { clearTimeout, setTimeout } = require('timers');
const { getValidatedPath } = require('internal/fs/utils');
const {
isInt32,
validateAbortSignal,
validateArray,
validateBoolean,
validateFunction,
validateObject,
validateString,
} = require('internal/validators');
const child_process = require('internal/child_process');
const {
getValidStdio,
setupChannel,
ChildProcess,
stdioStringToArray
} = child_process;
const MAX_BUFFER = 1024 * 1024;
/**
* Spawns a new Node.js process + fork.
* @param {string|URL} modulePath
* @param {string[]} [args]
* @param {{
* cwd?: string;
* detached?: boolean;
* env?: Record<string, string>;
* execPath?: string;
* execArgv?: string[];
* gid?: number;
* serialization?: string;
* signal?: AbortSignal;
* killSignal?: string | number;
* silent?: boolean;
* stdio?: Array | string;
* uid?: number;
* windowsVerbatimArguments?: boolean;
* timeout?: number;
* }} [options]
* @returns {ChildProcess}
*/
function fork(modulePath, args = [], options) {
modulePath = getValidatedPath(modulePath, 'modulePath');
// Get options and args arguments.
let execArgv;
if (args == null) {
args = [];
} else if (typeof args === 'object' && !ArrayIsArray(args)) {
options = args;
args = [];
} else {
validateArray(args, 'args');
}
if (options != null) {
validateObject(options, 'options');
}
options = { ...options, shell: false };
options.execPath = options.execPath || process.execPath;
// Prepare arguments for fork:
execArgv = options.execArgv || process.execArgv;
if (execArgv === process.execArgv && process._eval != null) {
const index = ArrayPrototypeLastIndexOf(execArgv, process._eval);
if (index > 0) {
// Remove the -e switch to avoid fork bombing ourselves.
execArgv = ArrayPrototypeSlice(execArgv);
ArrayPrototypeSplice(execArgv, index - 1, 2);
}
}
args = [...execArgv, modulePath, ...args];
if (typeof options.stdio === 'string') {
options.stdio = stdioStringToArray(options.stdio, 'ipc');
} else if (!ArrayIsArray(options.stdio)) {
// Use a separate fd=3 for the IPC channel. Inherit stdin, stdout,
// and stderr from the parent if silent isn't set.
options.stdio = stdioStringToArray(
options.silent ? 'pipe' : 'inherit',
'ipc');
} else if (!ArrayPrototypeIncludes(options.stdio, 'ipc')) {
throw new ERR_CHILD_PROCESS_IPC_REQUIRED('options.stdio');
}
return spawn(options.execPath, args, options);
}
function _forkChild(fd, serializationMode) {
// set process.send()
const p = new Pipe(PipeConstants.IPC);
p.open(fd);
p.unref();
const control = setupChannel(process, p, serializationMode);
process.on('newListener', function onNewListener(name) {
if (name === 'message' || name === 'disconnect') control.refCounted();
});
process.on('removeListener', function onRemoveListener(name) {
if (name === 'message' || name === 'disconnect') control.unrefCounted();
});
}
function normalizeExecArgs(command, options, callback) {
if (typeof options === 'function') {
callback = options;
options = undefined;
}
// Make a shallow copy so we don't clobber the user's options object.
options = { ...options };
options.shell = typeof options.shell === 'string' ? options.shell : true;
return {
file: command,
options: options,
callback: callback
};
}
/**
* Spawns a shell executing the given command.
* @param {string} command
* @param {{
* cmd?: string;
* env?: Record<string, string>;
* encoding?: string;
* shell?: string;
* signal?: AbortSignal;
* timeout?: number;
* maxBuffer?: number;
* killSignal?: string | number;
* uid?: number;
* gid?: number;
* windowsHide?: boolean;
* }} [options]
* @param {(
* error?: Error,
* stdout?: string | Buffer,
* stderr?: string | Buffer
* ) => any} [callback]
* @returns {ChildProcess}
*/
function exec(command, options, callback) {
const opts = normalizeExecArgs(command, options, callback);
return module.exports.execFile(opts.file,
opts.options,
opts.callback);
}
const customPromiseExecFunction = (orig) => {
return (...args) => {
const { promise, resolve, reject } = createDeferredPromise();
promise.child = orig(...args, (err, stdout, stderr) => {
if (err !== null) {
err.stdout = stdout;
err.stderr = stderr;
reject(err);
} else {
resolve({ stdout, stderr });
}
});
return promise;
};
};
ObjectDefineProperty(exec, promisify.custom, {
__proto__: null,
enumerable: false,
value: customPromiseExecFunction(exec)
});
function normalizeExecFileArgs(file, args, options, callback) {
if (ArrayIsArray(args)) {
args = ArrayPrototypeSlice(args);
} else if (args != null && typeof args === 'object') {
callback = options;
options = args;
args = null;
} else if (typeof args === 'function') {
callback = args;
options = null;
args = null;
}
if (args == null) {
args = [];
}
if (typeof options === 'function') {
callback = options;
} else if (options != null) {
validateObject(options, 'options');
}
if (options == null) {
options = kEmptyObject;
}
if (callback != null) {
validateFunction(callback, 'callback');
}
// Validate argv0, if present.
if (options.argv0 != null) {
validateString(options.argv0, 'options.argv0');
}
return { file, args, options, callback };
}
/**
* Spawns the specified file as a shell.
* @param {string} file
* @param {string[]} [args]
* @param {{
* cwd?: string;
* env?: Record<string, string>;
* encoding?: string;
* timeout?: number;
* maxBuffer?: number;
* killSignal?: string | number;
* uid?: number;
* gid?: number;
* windowsHide?: boolean;
* windowsVerbatimArguments?: boolean;
* shell?: boolean | string;
* signal?: AbortSignal;
* }} [options]
* @param {(
* error?: Error,
* stdout?: string | Buffer,
* stderr?: string | Buffer
* ) => any} [callback]
* @returns {ChildProcess}
*/
function execFile(file, args, options, callback) {
({ file, args, options, callback } = normalizeExecFileArgs(file, args, options, callback));
options = {
encoding: 'utf8',
timeout: 0,
maxBuffer: MAX_BUFFER,
killSignal: 'SIGTERM',
cwd: null,
env: null,
shell: false,
...options
};
// Validate the timeout, if present.
validateTimeout(options.timeout);
// Validate maxBuffer, if present.
validateMaxBuffer(options.maxBuffer);
options.killSignal = sanitizeKillSignal(options.killSignal);
const child = spawn(file, args, {
cwd: options.cwd,
env: options.env,
gid: options.gid,
shell: options.shell,
signal: options.signal,
uid: options.uid,
windowsHide: !!options.windowsHide,
windowsVerbatimArguments: !!options.windowsVerbatimArguments
});
let encoding;
const _stdout = [];
const _stderr = [];
if (options.encoding !== 'buffer' && Buffer.isEncoding(options.encoding)) {
encoding = options.encoding;
} else {
encoding = null;
}
let stdoutLen = 0;
let stderrLen = 0;
let killed = false;
let exited = false;
let timeoutId;
let ex = null;
let cmd = file;
function exithandler(code, signal) {
if (exited) return;
exited = true;
if (timeoutId) {
clearTimeout(timeoutId);
timeoutId = null;
}
if (!callback) return;
// merge chunks
let stdout;
let stderr;
if (encoding ||
(
child.stdout &&
child.stdout.readableEncoding
)) {
stdout = ArrayPrototypeJoin(_stdout, '');
} else {
stdout = Buffer.concat(_stdout);
}
if (encoding ||
(
child.stderr &&
child.stderr.readableEncoding
)) {
stderr = ArrayPrototypeJoin(_stderr, '');
} else {
stderr = Buffer.concat(_stderr);
}
if (!ex && code === 0 && signal === null) {
callback(null, stdout, stderr);
return;
}
if (args?.length)
cmd += ` ${ArrayPrototypeJoin(args, ' ')}`;
if (!ex) {
ex = genericNodeError(`Command failed: ${cmd}\n${stderr}`, {
code: code < 0 ? getSystemErrorName(code) : code,
killed: child.killed || killed,
signal: signal
});
}
ex.cmd = cmd;
callback(ex, stdout, stderr);
}
function errorhandler(e) {
ex = e;
if (child.stdout)
child.stdout.destroy();
if (child.stderr)
child.stderr.destroy();
exithandler();
}
function kill() {
if (child.stdout)
child.stdout.destroy();
if (child.stderr)
child.stderr.destroy();
killed = true;
try {
child.kill(options.killSignal);
} catch (e) {
ex = e;
exithandler();
}
}
if (options.timeout > 0) {
timeoutId = setTimeout(function delayedKill() {
kill();
timeoutId = null;
}, options.timeout);
}
if (child.stdout) {
if (encoding)
child.stdout.setEncoding(encoding);
child.stdout.on('data', function onChildStdout(chunk) {
// Do not need to count the length
if (options.maxBuffer === Infinity) {
ArrayPrototypePush(_stdout, chunk);
return;
}
const encoding = child.stdout.readableEncoding;
const length = encoding ?
Buffer.byteLength(chunk, encoding) :
chunk.length;
const slice = encoding ? StringPrototypeSlice :
(buf, ...args) => buf.slice(...args);
stdoutLen += length;
if (stdoutLen > options.maxBuffer) {
const truncatedLen = options.maxBuffer - (stdoutLen - length);
ArrayPrototypePush(_stdout, slice(chunk, 0, truncatedLen));
ex = new ERR_CHILD_PROCESS_STDIO_MAXBUFFER('stdout');
kill();
} else {
ArrayPrototypePush(_stdout, chunk);
}
});
}
if (child.stderr) {
if (encoding)
child.stderr.setEncoding(encoding);
child.stderr.on('data', function onChildStderr(chunk) {
// Do not need to count the length
if (options.maxBuffer === Infinity) {
ArrayPrototypePush(_stderr, chunk);
return;
}
const encoding = child.stderr.readableEncoding;
const length = encoding ?
Buffer.byteLength(chunk, encoding) :
chunk.length;
stderrLen += length;
if (stderrLen > options.maxBuffer) {
const truncatedLen = options.maxBuffer - (stderrLen - length);
ArrayPrototypePush(_stderr,
chunk.slice(0, truncatedLen));
ex = new ERR_CHILD_PROCESS_STDIO_MAXBUFFER('stderr');
kill();
} else {
ArrayPrototypePush(_stderr, chunk);
}
});
}
child.addListener('close', exithandler);
child.addListener('error', errorhandler);
return child;
}
ObjectDefineProperty(execFile, promisify.custom, {
__proto__: null,
enumerable: false,
value: customPromiseExecFunction(execFile)
});
function normalizeSpawnArguments(file, args, options) {
validateString(file, 'file');
if (file.length === 0)
throw new ERR_INVALID_ARG_VALUE('file', file, 'cannot be empty');
if (ArrayIsArray(args)) {
args = ArrayPrototypeSlice(args);
} else if (args == null) {
args = [];
} else if (typeof args !== 'object') {
throw new ERR_INVALID_ARG_TYPE('args', 'object', args);
} else {
options = args;
args = [];
}
if (options === undefined)
options = kEmptyObject;
else
validateObject(options, 'options');
let cwd = options.cwd;
// Validate the cwd, if present.
if (cwd != null) {
cwd = getValidatedPath(cwd, 'options.cwd');
}
// Validate detached, if present.
if (options.detached != null) {
validateBoolean(options.detached, 'options.detached');
}
// Validate the uid, if present.
if (options.uid != null && !isInt32(options.uid)) {
throw new ERR_INVALID_ARG_TYPE('options.uid', 'int32', options.uid);
}
// Validate the gid, if present.
if (options.gid != null && !isInt32(options.gid)) {
throw new ERR_INVALID_ARG_TYPE('options.gid', 'int32', options.gid);
}
// Validate the shell, if present.
if (options.shell != null &&
typeof options.shell !== 'boolean' &&
typeof options.shell !== 'string') {
throw new ERR_INVALID_ARG_TYPE('options.shell',
['boolean', 'string'], options.shell);
}
// Validate argv0, if present.
if (options.argv0 != null) {
validateString(options.argv0, 'options.argv0');
}
// Validate windowsHide, if present.
if (options.windowsHide != null) {
validateBoolean(options.windowsHide, 'options.windowsHide');
}
// Validate windowsVerbatimArguments, if present.
let { windowsVerbatimArguments } = options;
if (windowsVerbatimArguments != null) {
validateBoolean(windowsVerbatimArguments,
'options.windowsVerbatimArguments');
}
if (options.shell) {
const command = ArrayPrototypeJoin([file, ...args], ' ');
// Set the shell, switches, and commands.
if (process.platform === 'win32') {
if (typeof options.shell === 'string')
file = options.shell;
else
file = process.env.comspec || 'cmd.exe';
// '/d /s /c' is used only for cmd.exe.
if (RegExpPrototypeExec(/^(?:.*\\)?cmd(?:\.exe)?$/i, file) !== null) {
args = ['/d', '/s', '/c', `"${command}"`];
windowsVerbatimArguments = true;
} else {
args = ['-c', command];
}
} else {
if (typeof options.shell === 'string')
file = options.shell;
else if (process.platform === 'android')
file = '/system/bin/sh';
else
file = '/bin/sh';
args = ['-c', command];
}
}
if (typeof options.argv0 === 'string') {
ArrayPrototypeUnshift(args, options.argv0);
} else {
ArrayPrototypeUnshift(args, file);
}
const env = options.env || process.env;
const envPairs = [];
// process.env.NODE_V8_COVERAGE always propagates, making it possible to
// collect coverage for programs that spawn with white-listed environment.
if (process.env.NODE_V8_COVERAGE &&
!ObjectPrototypeHasOwnProperty(options.env || {}, 'NODE_V8_COVERAGE')) {
env.NODE_V8_COVERAGE = process.env.NODE_V8_COVERAGE;
}
let envKeys = [];
// Prototype values are intentionally included.
for (const key in env) {
ArrayPrototypePush(envKeys, key);
}
if (process.platform === 'win32') {
// On Windows env keys are case insensitive. Filter out duplicates,
// keeping only the first one (in lexicographic order)
const sawKey = new SafeSet();
envKeys = ArrayPrototypeFilter(
ArrayPrototypeSort(envKeys),
(key) => {
const uppercaseKey = StringPrototypeToUpperCase(key);
if (sawKey.has(uppercaseKey)) {
return false;
}
sawKey.add(uppercaseKey);
return true;
}
);
}
for (const key of envKeys) {
const value = env[key];
if (value !== undefined) {
ArrayPrototypePush(envPairs, `${key}=${value}`);
}
}
return {
// Make a shallow copy so we don't clobber the user's options object.
...options,
args,
cwd,
detached: !!options.detached,
envPairs,
file,
windowsHide: !!options.windowsHide,
windowsVerbatimArguments: !!windowsVerbatimArguments,
};
}
function abortChildProcess(child, killSignal) {
if (!child)
return;
try {
if (child.kill(killSignal)) {
child.emit('error', new AbortError());
}
} catch (err) {
child.emit('error', err);
}
}
/**
* Spawns a new process using the given `file`.
* @param {string} file
* @param {string[]} [args]
* @param {{
* cwd?: string;
* env?: Record<string, string>;
* argv0?: string;
* stdio?: Array | string;
* detached?: boolean;
* uid?: number;
* gid?: number;
* serialization?: string;
* shell?: boolean | string;
* windowsVerbatimArguments?: boolean;
* windowsHide?: boolean;
* signal?: AbortSignal;
* timeout?: number;
* killSignal?: string | number;
* }} [options]
* @returns {ChildProcess}
*/
function spawn(file, args, options) {
options = normalizeSpawnArguments(file, args, options);
validateTimeout(options.timeout);
validateAbortSignal(options.signal, 'options.signal');
const killSignal = sanitizeKillSignal(options.killSignal);
const child = new ChildProcess();
debug('spawn', options);
child.spawn(options);
if (options.timeout > 0) {
let timeoutId = setTimeout(() => {
if (timeoutId) {
try {
child.kill(killSignal);
} catch (err) {
child.emit('error', err);
}
timeoutId = null;
}
}, options.timeout);
child.once('exit', () => {
if (timeoutId) {
clearTimeout(timeoutId);
timeoutId = null;
}
});
}
if (options.signal) {
const signal = options.signal;
if (signal.aborted) {
process.nextTick(onAbortListener);
} else {
signal.addEventListener('abort', onAbortListener, { once: true });
child.once('exit',
() => signal.removeEventListener('abort', onAbortListener));
}
function onAbortListener() {
abortChildProcess(child, killSignal);
}
}
return child;
}
/**
* Spawns a new process synchronously using the given `file`.
* @param {string} file
* @param {string[]} [args]
* @param {{
* cwd?: string;
* input?: string | Buffer | TypedArray | DataView;
* argv0?: string;
* stdio?: string | Array;
* env?: Record<string, string>;
* uid?: number;
* gid?: number;
* timeout?: number;
* killSignal?: string | number;
* maxBuffer?: number;
* encoding?: string;
* shell?: boolean | string;
* windowsVerbatimArguments?: boolean;
* windowsHide?: boolean;
* }} [options]
* @returns {{
* pid: number;
* output: Array;
* stdout: Buffer | string;
* stderr: Buffer | string;
* status: number | null;
* signal: string | null;
* error: Error;
* }}
*/
function spawnSync(file, args, options) {
options = {
maxBuffer: MAX_BUFFER,
...normalizeSpawnArguments(file, args, options)
};
debug('spawnSync', options);
// Validate the timeout, if present.
validateTimeout(options.timeout);
// Validate maxBuffer, if present.
validateMaxBuffer(options.maxBuffer);
// Validate and translate the kill signal, if present.
options.killSignal = sanitizeKillSignal(options.killSignal);
options.stdio = getValidStdio(options.stdio || 'pipe', true).stdio;
if (options.input) {
const stdin = options.stdio[0] = { ...options.stdio[0] };
stdin.input = options.input;
}
// We may want to pass data in on any given fd, ensure it is a valid buffer
for (let i = 0; i < options.stdio.length; i++) {
const input = options.stdio[i] && options.stdio[i].input;
if (input != null) {
const pipe = options.stdio[i] = { ...options.stdio[i] };
if (isArrayBufferView(input)) {
pipe.input = input;
} else if (typeof input === 'string') {
pipe.input = Buffer.from(input, options.encoding);
} else {
throw new ERR_INVALID_ARG_TYPE(`options.stdio[${i}]`,
['Buffer',
'TypedArray',
'DataView',
'string'],
input);
}
}
}
return child_process.spawnSync(options);
}
function checkExecSyncError(ret, args, cmd) {
let err;
if (ret.error) {
err = ret.error;
ObjectAssign(err, ret);
} else if (ret.status !== 0) {
let msg = 'Command failed: ';
msg += cmd || ArrayPrototypeJoin(args, ' ');
if (ret.stderr && ret.stderr.length > 0)
msg += `\n${ret.stderr.toString()}`;
err = genericNodeError(msg, ret);
}
return err;
}
/**
* Spawns a file as a shell synchronously.
* @param {string} file
* @param {string[]} [args]
* @param {{
* cwd?: string;
* input?: string | Buffer | TypedArray | DataView;
* stdio?: string | Array;
* env?: Record<string, string>;
* uid?: number;
* gid?: number;
* timeout?: number;
* killSignal?: string | number;
* maxBuffer?: number;
* encoding?: string;
* windowsHide?: boolean;
* shell?: boolean | string;
* }} [options]
* @returns {Buffer | string}
*/
function execFileSync(file, args, options) {
({ file, args, options } = normalizeExecFileArgs(file, args, options));
const inheritStderr = !options.stdio;
const ret = spawnSync(file, args, options);
if (inheritStderr && ret.stderr)
process.stderr.write(ret.stderr);
const errArgs = [options.argv0 || file];
ArrayPrototypePushApply(errArgs, args);
const err = checkExecSyncError(ret, errArgs);
if (err)
throw err;
return ret.stdout;
}
/**
* Spawns a shell executing the given `command` synchronously.
* @param {string} command
* @param {{
* cwd?: string;
* input?: string | Buffer | TypedArray | DataView;
* stdio?: string | Array;
* env?: Record<string, string>;
* shell?: string;
* uid?: number;
* gid?: number;
* timeout?: number;
* killSignal?: string | number;
* maxBuffer?: number;
* encoding?: string;
* windowsHide?: boolean;
* }} [options]
* @returns {Buffer | string}
*/
function execSync(command, options) {
const opts = normalizeExecArgs(command, options, null);
const inheritStderr = !opts.options.stdio;
const ret = spawnSync(opts.file, opts.options);
if (inheritStderr && ret.stderr)
process.stderr.write(ret.stderr);
const err = checkExecSyncError(ret, opts.args, command);
if (err)
throw err;
return ret.stdout;
}
function validateTimeout(timeout) {
if (timeout != null && !(NumberIsInteger(timeout) && timeout >= 0)) {
throw new ERR_OUT_OF_RANGE('timeout', 'an unsigned integer', timeout);
}
}
function validateMaxBuffer(maxBuffer) {
if (maxBuffer != null && !(typeof maxBuffer === 'number' && maxBuffer >= 0)) {
throw new ERR_OUT_OF_RANGE('options.maxBuffer',
'a positive number',
maxBuffer);
}
}
function sanitizeKillSignal(killSignal) {
if (typeof killSignal === 'string' || typeof killSignal === 'number') {
return convertToValidSignal(killSignal);
} else if (killSignal != null) {
throw new ERR_INVALID_ARG_TYPE('options.killSignal',
['string', 'number'],
killSignal);
}
}
module.exports = {
_forkChild,
ChildProcess,
exec,
execFile,
execFileSync,
execSync,
fork,
spawn,
spawnSync
};
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