const node_buffer = require('buffer');
const path = require('path');
const childProcess = require('child_process');
const process$2 = require('process');
const url = require('url');
const os = require('os');
const node_fs = require('fs');
const promises = require('timers/promises');
const require$$0 = require('stream');
const node_util = require('util');

function _interopDefault (e) { return e && e.__esModule ? e : { default: e }; }

const path__default = /*#__PURE__*/_interopDefault(path);
const childProcess__default = /*#__PURE__*/_interopDefault(childProcess);
const process__default = /*#__PURE__*/_interopDefault(process$2);
const url__default = /*#__PURE__*/_interopDefault(url);
const os__default = /*#__PURE__*/_interopDefault(os);
const require$$0__default = /*#__PURE__*/_interopDefault(require$$0);

function stripFinalNewline(input) {
	const LF = typeof input === 'string' ? '\n' : '\n'.charCodeAt();
	const CR = typeof input === 'string' ? '\r' : '\r'.charCodeAt();

	if (input[input.length - 1] === LF) {
		input = input.slice(0, -1);
	}

	if (input[input.length - 1] === CR) {
		input = input.slice(0, -1);
	}

	return input;
}

function pathKey(options = {}) {
	const {
		env = process.env,
		platform = process.platform
	} = options;

	if (platform !== 'win32') {
		return 'PATH';
	}

	return Object.keys(env).reverse().find(key => key.toUpperCase() === 'PATH') || 'Path';
}

function npmRunPath(options = {}) {
	const {
		cwd = process__default.default.cwd(),
		path: path_ = process__default.default.env[pathKey()],
		execPath = process__default.default.execPath,
	} = options;

	let previous;
	const cwdString = cwd instanceof URL ? url__default.default.fileURLToPath(cwd) : cwd;
	let cwdPath = path__default.default.resolve(cwdString);
	const result = [];

	while (previous !== cwdPath) {
		result.push(path__default.default.join(cwdPath, 'node_modules/.bin'));
		previous = cwdPath;
		cwdPath = path__default.default.resolve(cwdPath, '..');
	}

	// Ensure the running `node` binary is used.
	result.push(path__default.default.resolve(cwdString, execPath, '..'));

	return [...result, path_].join(path__default.default.delimiter);
}

function npmRunPathEnv({env = process__default.default.env, ...options} = {}) {
	env = {...env};

	const path = pathKey({env});
	options.path = env[path];
	env[path] = npmRunPath(options);

	return env;
}

const copyProperty = (to, from, property, ignoreNonConfigurable) => {
	// `Function#length` should reflect the parameters of `to` not `from` since we keep its body.
	// `Function#prototype` is non-writable and non-configurable so can never be modified.
	if (property === 'length' || property === 'prototype') {
		return;
	}

	// `Function#arguments` and `Function#caller` should not be copied. They were reported to be present in `Reflect.ownKeys` for some devices in React Native (#41), so we explicitly ignore them here.
	if (property === 'arguments' || property === 'caller') {
		return;
	}

	const toDescriptor = Object.getOwnPropertyDescriptor(to, property);
	const fromDescriptor = Object.getOwnPropertyDescriptor(from, property);

	if (!canCopyProperty(toDescriptor, fromDescriptor) && ignoreNonConfigurable) {
		return;
	}

	Object.defineProperty(to, property, fromDescriptor);
};

// `Object.defineProperty()` throws if the property exists, is not configurable and either:
// - one its descriptors is changed
// - it is non-writable and its value is changed
const canCopyProperty = function (toDescriptor, fromDescriptor) {
	return toDescriptor === undefined || toDescriptor.configurable || (
		toDescriptor.writable === fromDescriptor.writable &&
		toDescriptor.enumerable === fromDescriptor.enumerable &&
		toDescriptor.configurable === fromDescriptor.configurable &&
		(toDescriptor.writable || toDescriptor.value === fromDescriptor.value)
	);
};

const changePrototype = (to, from) => {
	const fromPrototype = Object.getPrototypeOf(from);
	if (fromPrototype === Object.getPrototypeOf(to)) {
		return;
	}

	Object.setPrototypeOf(to, fromPrototype);
};

const wrappedToString = (withName, fromBody) => `/* Wrapped ${withName}*/\n${fromBody}`;

const toStringDescriptor = Object.getOwnPropertyDescriptor(Function.prototype, 'toString');
const toStringName = Object.getOwnPropertyDescriptor(Function.prototype.toString, 'name');

// We call `from.toString()` early (not lazily) to ensure `from` can be garbage collected.
// We use `bind()` instead of a closure for the same reason.
// Calling `from.toString()` early also allows caching it in case `to.toString()` is called several times.
const changeToString = (to, from, name) => {
	const withName = name === '' ? '' : `with ${name.trim()}() `;
	const newToString = wrappedToString.bind(null, withName, from.toString());
	// Ensure `to.toString.toString` is non-enumerable and has the same `same`
	Object.defineProperty(newToString, 'name', toStringName);
	Object.defineProperty(to, 'toString', {...toStringDescriptor, value: newToString});
};

function mimicFunction(to, from, {ignoreNonConfigurable = false} = {}) {
	const {name} = to;

	for (const property of Reflect.ownKeys(from)) {
		copyProperty(to, from, property, ignoreNonConfigurable);
	}

	changePrototype(to, from);
	changeToString(to, from, name);

	return to;
}

const calledFunctions = new WeakMap();

const onetime = (function_, options = {}) => {
	if (typeof function_ !== 'function') {
		throw new TypeError('Expected a function');
	}

	let returnValue;
	let callCount = 0;
	const functionName = function_.displayName || function_.name || '<anonymous>';

	const onetime = function (...arguments_) {
		calledFunctions.set(onetime, ++callCount);

		if (callCount === 1) {
			returnValue = function_.apply(this, arguments_);
			function_ = null;
		} else if (options.throw === true) {
			throw new Error(`Function \`${functionName}\` can only be called once`);
		}

		return returnValue;
	};

	mimicFunction(onetime, function_);
	calledFunctions.set(onetime, callCount);

	return onetime;
};

onetime.callCount = function_ => {
	if (!calledFunctions.has(function_)) {
		throw new Error(`The given function \`${function_.name}\` is not wrapped by the \`onetime\` package`);
	}

	return calledFunctions.get(function_);
};

// List of realtime signals with information about them
const getRealtimeSignals = () => {
  const length = SIGRTMAX - SIGRTMIN + 1;
  return Array.from({ length }, getRealtimeSignal)
};

const getRealtimeSignal = (value, index) => ({
  name: `SIGRT${index + 1}`,
  number: SIGRTMIN + index,
  action: 'terminate',
  description: 'Application-specific signal (realtime)',
  standard: 'posix',
});

const SIGRTMIN = 34;
const SIGRTMAX = 64;

/* eslint-disable max-lines */
// List of known process signals with information about them
const SIGNALS = [
  {
    name: 'SIGHUP',
    number: 1,
    action: 'terminate',
    description: 'Terminal closed',
    standard: 'posix',
  },
  {
    name: 'SIGINT',
    number: 2,
    action: 'terminate',
    description: 'User interruption with CTRL-C',
    standard: 'ansi',
  },
  {
    name: 'SIGQUIT',
    number: 3,
    action: 'core',
    description: 'User interruption with CTRL-\\',
    standard: 'posix',
  },
  {
    name: 'SIGILL',
    number: 4,
    action: 'core',
    description: 'Invalid machine instruction',
    standard: 'ansi',
  },
  {
    name: 'SIGTRAP',
    number: 5,
    action: 'core',
    description: 'Debugger breakpoint',
    standard: 'posix',
  },
  {
    name: 'SIGABRT',
    number: 6,
    action: 'core',
    description: 'Aborted',
    standard: 'ansi',
  },
  {
    name: 'SIGIOT',
    number: 6,
    action: 'core',
    description: 'Aborted',
    standard: 'bsd',
  },
  {
    name: 'SIGBUS',
    number: 7,
    action: 'core',
    description:
      'Bus error due to misaligned, non-existing address or paging error',
    standard: 'bsd',
  },
  {
    name: 'SIGEMT',
    number: 7,
    action: 'terminate',
    description: 'Command should be emulated but is not implemented',
    standard: 'other',
  },
  {
    name: 'SIGFPE',
    number: 8,
    action: 'core',
    description: 'Floating point arithmetic error',
    standard: 'ansi',
  },
  {
    name: 'SIGKILL',
    number: 9,
    action: 'terminate',
    description: 'Forced termination',
    standard: 'posix',
    forced: true,
  },
  {
    name: 'SIGUSR1',
    number: 10,
    action: 'terminate',
    description: 'Application-specific signal',
    standard: 'posix',
  },
  {
    name: 'SIGSEGV',
    number: 11,
    action: 'core',
    description: 'Segmentation fault',
    standard: 'ansi',
  },
  {
    name: 'SIGUSR2',
    number: 12,
    action: 'terminate',
    description: 'Application-specific signal',
    standard: 'posix',
  },
  {
    name: 'SIGPIPE',
    number: 13,
    action: 'terminate',
    description: 'Broken pipe or socket',
    standard: 'posix',
  },
  {
    name: 'SIGALRM',
    number: 14,
    action: 'terminate',
    description: 'Timeout or timer',
    standard: 'posix',
  },
  {
    name: 'SIGTERM',
    number: 15,
    action: 'terminate',
    description: 'Termination',
    standard: 'ansi',
  },
  {
    name: 'SIGSTKFLT',
    number: 16,
    action: 'terminate',
    description: 'Stack is empty or overflowed',
    standard: 'other',
  },
  {
    name: 'SIGCHLD',
    number: 17,
    action: 'ignore',
    description: 'Child process terminated, paused or unpaused',
    standard: 'posix',
  },
  {
    name: 'SIGCLD',
    number: 17,
    action: 'ignore',
    description: 'Child process terminated, paused or unpaused',
    standard: 'other',
  },
  {
    name: 'SIGCONT',
    number: 18,
    action: 'unpause',
    description: 'Unpaused',
    standard: 'posix',
    forced: true,
  },
  {
    name: 'SIGSTOP',
    number: 19,
    action: 'pause',
    description: 'Paused',
    standard: 'posix',
    forced: true,
  },
  {
    name: 'SIGTSTP',
    number: 20,
    action: 'pause',
    description: 'Paused using CTRL-Z or "suspend"',
    standard: 'posix',
  },
  {
    name: 'SIGTTIN',
    number: 21,
    action: 'pause',
    description: 'Background process cannot read terminal input',
    standard: 'posix',
  },
  {
    name: 'SIGBREAK',
    number: 21,
    action: 'terminate',
    description: 'User interruption with CTRL-BREAK',
    standard: 'other',
  },
  {
    name: 'SIGTTOU',
    number: 22,
    action: 'pause',
    description: 'Background process cannot write to terminal output',
    standard: 'posix',
  },
  {
    name: 'SIGURG',
    number: 23,
    action: 'ignore',
    description: 'Socket received out-of-band data',
    standard: 'bsd',
  },
  {
    name: 'SIGXCPU',
    number: 24,
    action: 'core',
    description: 'Process timed out',
    standard: 'bsd',
  },
  {
    name: 'SIGXFSZ',
    number: 25,
    action: 'core',
    description: 'File too big',
    standard: 'bsd',
  },
  {
    name: 'SIGVTALRM',
    number: 26,
    action: 'terminate',
    description: 'Timeout or timer',
    standard: 'bsd',
  },
  {
    name: 'SIGPROF',
    number: 27,
    action: 'terminate',
    description: 'Timeout or timer',
    standard: 'bsd',
  },
  {
    name: 'SIGWINCH',
    number: 28,
    action: 'ignore',
    description: 'Terminal window size changed',
    standard: 'bsd',
  },
  {
    name: 'SIGIO',
    number: 29,
    action: 'terminate',
    description: 'I/O is available',
    standard: 'other',
  },
  {
    name: 'SIGPOLL',
    number: 29,
    action: 'terminate',
    description: 'Watched event',
    standard: 'other',
  },
  {
    name: 'SIGINFO',
    number: 29,
    action: 'ignore',
    description: 'Request for process information',
    standard: 'other',
  },
  {
    name: 'SIGPWR',
    number: 30,
    action: 'terminate',
    description: 'Device running out of power',
    standard: 'systemv',
  },
  {
    name: 'SIGSYS',
    number: 31,
    action: 'core',
    description: 'Invalid system call',
    standard: 'other',
  },
  {
    name: 'SIGUNUSED',
    number: 31,
    action: 'terminate',
    description: 'Invalid system call',
    standard: 'other',
  },
];
/* eslint-enable max-lines */

// Retrieve list of know signals (including realtime) with information about
// them
const getSignals = () => {
  const realtimeSignals = getRealtimeSignals();
  const signals = [...SIGNALS, ...realtimeSignals].map(normalizeSignal);
  return signals
};

// Normalize signal:
//  - `number`: signal numbers are OS-specific. This is taken into account by
//    `os.constants.signals`. However we provide a default `number` since some
//     signals are not defined for some OS.
//  - `forced`: set default to `false`
//  - `supported`: set value
const normalizeSignal = ({
  name,
  number: defaultNumber,
  description,
  action,
  forced = false,
  standard,
}) => {
  const {
    signals: { [name]: constantSignal },
  } = os.constants;
  const supported = constantSignal !== undefined;
  const number = supported ? constantSignal : defaultNumber;
  return { name, number, description, supported, action, forced, standard }
};

// Retrieve `signalsByName`, an object mapping signal name to signal properties.
// We make sure the object is sorted by `number`.
const getSignalsByName = () => {
  const signals = getSignals();
  return Object.fromEntries(signals.map(getSignalByName))
};

const getSignalByName = ({
  name,
  number,
  description,
  supported,
  action,
  forced,
  standard,
}) => [name, { name, number, description, supported, action, forced, standard }];

const signalsByName = getSignalsByName();

// Retrieve `signalsByNumber`, an object mapping signal number to signal
// properties.
// We make sure the object is sorted by `number`.
const getSignalsByNumber = () => {
  const signals = getSignals();
  const length = SIGRTMAX + 1;
  const signalsA = Array.from({ length }, (value, number) =>
    getSignalByNumber(number, signals),
  );
  return Object.assign({}, ...signalsA)
};

const getSignalByNumber = (number, signals) => {
  const signal = findSignalByNumber(number, signals);

  if (signal === undefined) {
    return {}
  }

  const { name, description, supported, action, forced, standard } = signal;
  return {
    [number]: {
      name,
      number,
      description,
      supported,
      action,
      forced,
      standard,
    },
  }
};

// Several signals might end up sharing the same number because of OS-specific
// numbers, in which case those prevail.
const findSignalByNumber = (number, signals) => {
  const signal = signals.find(({ name }) => os.constants.signals[name] === number);

  if (signal !== undefined) {
    return signal
  }

  return signals.find((signalA) => signalA.number === number)
};

getSignalsByNumber();

const getErrorPrefix = ({timedOut, timeout, errorCode, signal, signalDescription, exitCode, isCanceled}) => {
	if (timedOut) {
		return `timed out after ${timeout} milliseconds`;
	}

	if (isCanceled) {
		return 'was canceled';
	}

	if (errorCode !== undefined) {
		return `failed with ${errorCode}`;
	}

	if (signal !== undefined) {
		return `was killed with ${signal} (${signalDescription})`;
	}

	if (exitCode !== undefined) {
		return `failed with exit code ${exitCode}`;
	}

	return 'failed';
};

const makeError = ({
	stdout,
	stderr,
	all,
	error,
	signal,
	exitCode,
	command,
	escapedCommand,
	timedOut,
	isCanceled,
	killed,
	parsed: {options: {timeout, cwd = process__default.default.cwd()}},
}) => {
	// `signal` and `exitCode` emitted on `spawned.on('exit')` event can be `null`.
	// We normalize them to `undefined`
	exitCode = exitCode === null ? undefined : exitCode;
	signal = signal === null ? undefined : signal;
	const signalDescription = signal === undefined ? undefined : signalsByName[signal].description;

	const errorCode = error && error.code;

	const prefix = getErrorPrefix({timedOut, timeout, errorCode, signal, signalDescription, exitCode, isCanceled});
	const execaMessage = `Command ${prefix}: ${command}`;
	const isError = Object.prototype.toString.call(error) === '[object Error]';
	const shortMessage = isError ? `${execaMessage}\n${error.message}` : execaMessage;
	const message = [shortMessage, stderr, stdout].filter(Boolean).join('\n');

	if (isError) {
		error.originalMessage = error.message;
		error.message = message;
	} else {
		error = new Error(message);
	}

	error.shortMessage = shortMessage;
	error.command = command;
	error.escapedCommand = escapedCommand;
	error.exitCode = exitCode;
	error.signal = signal;
	error.signalDescription = signalDescription;
	error.stdout = stdout;
	error.stderr = stderr;
	error.cwd = cwd;

	if (all !== undefined) {
		error.all = all;
	}

	if ('bufferedData' in error) {
		delete error.bufferedData;
	}

	error.failed = true;
	error.timedOut = Boolean(timedOut);
	error.isCanceled = isCanceled;
	error.killed = killed && !timedOut;

	return error;
};

const aliases = ['stdin', 'stdout', 'stderr'];

const hasAlias = options => aliases.some(alias => options[alias] !== undefined);

const normalizeStdio = options => {
	if (!options) {
		return;
	}

	const {stdio} = options;

	if (stdio === undefined) {
		return aliases.map(alias => options[alias]);
	}

	if (hasAlias(options)) {
		throw new Error(`It's not possible to provide \`stdio\` in combination with one of ${aliases.map(alias => `\`${alias}\``).join(', ')}`);
	}

	if (typeof stdio === 'string') {
		return stdio;
	}

	if (!Array.isArray(stdio)) {
		throw new TypeError(`Expected \`stdio\` to be of type \`string\` or \`Array\`, got \`${typeof stdio}\``);
	}

	const length = Math.max(stdio.length, aliases.length);
	return Array.from({length}, (value, index) => stdio[index]);
};

// `ipc` is pushed unless it is already present
const normalizeStdioNode = options => {
	const stdio = normalizeStdio(options);

	if (stdio === 'ipc') {
		return 'ipc';
	}

	if (stdio === undefined || typeof stdio === 'string') {
		return [stdio, stdio, stdio, 'ipc'];
	}

	if (stdio.includes('ipc')) {
		return stdio;
	}

	return [...stdio, 'ipc'];
};

/**
 * This is not the set of all possible signals.
 *
 * It IS, however, the set of all signals that trigger
 * an exit on either Linux or BSD systems.  Linux is a
 * superset of the signal names supported on BSD, and
 * the unknown signals just fail to register, so we can
 * catch that easily enough.
 *
 * Windows signals are a different set, since there are
 * signals that terminate Windows processes, but don't
 * terminate (or don't even exist) on Posix systems.
 *
 * Don't bother with SIGKILL.  It's uncatchable, which
 * means that we can't fire any callbacks anyway.
 *
 * If a user does happen to register a handler on a non-
 * fatal signal like SIGWINCH or something, and then
 * exit, it'll end up firing `process.emit('exit')`, so
 * the handler will be fired anyway.
 *
 * SIGBUS, SIGFPE, SIGSEGV and SIGILL, when not raised
 * artificially, inherently leave the process in a
 * state from which it is not safe to try and enter JS
 * listeners.
 */
const signals = [];
signals.push('SIGHUP', 'SIGINT', 'SIGTERM');
if (process.platform !== 'win32') {
    signals.push('SIGALRM', 'SIGABRT', 'SIGVTALRM', 'SIGXCPU', 'SIGXFSZ', 'SIGUSR2', 'SIGTRAP', 'SIGSYS', 'SIGQUIT', 'SIGIOT'
    // should detect profiler and enable/disable accordingly.
    // see #21
    // 'SIGPROF'
    );
}
if (process.platform === 'linux') {
    signals.push('SIGIO', 'SIGPOLL', 'SIGPWR', 'SIGSTKFLT');
}

// Note: since nyc uses this module to output coverage, any lines
// that are in the direct sync flow of nyc's outputCoverage are
// ignored, since we can never get coverage for them.
// grab a reference to node's real process object right away
const processOk = (process) => !!process &&
    typeof process === 'object' &&
    typeof process.removeListener === 'function' &&
    typeof process.emit === 'function' &&
    typeof process.reallyExit === 'function' &&
    typeof process.listeners === 'function' &&
    typeof process.kill === 'function' &&
    typeof process.pid === 'number' &&
    typeof process.on === 'function';
const kExitEmitter = Symbol.for('signal-exit emitter');
const global = globalThis;
const ObjectDefineProperty = Object.defineProperty.bind(Object);
// teeny special purpose ee
class Emitter {
    emitted = {
        afterExit: false,
        exit: false,
    };
    listeners = {
        afterExit: [],
        exit: [],
    };
    count = 0;
    id = Math.random();
    constructor() {
        if (global[kExitEmitter]) {
            return global[kExitEmitter];
        }
        ObjectDefineProperty(global, kExitEmitter, {
            value: this,
            writable: false,
            enumerable: false,
            configurable: false,
        });
    }
    on(ev, fn) {
        this.listeners[ev].push(fn);
    }
    removeListener(ev, fn) {
        const list = this.listeners[ev];
        const i = list.indexOf(fn);
        /* c8 ignore start */
        if (i === -1) {
            return;
        }
        /* c8 ignore stop */
        if (i === 0 && list.length === 1) {
            list.length = 0;
        }
        else {
            list.splice(i, 1);
        }
    }
    emit(ev, code, signal) {
        if (this.emitted[ev]) {
            return false;
        }
        this.emitted[ev] = true;
        let ret = false;
        for (const fn of this.listeners[ev]) {
            ret = fn(code, signal) === true || ret;
        }
        if (ev === 'exit') {
            ret = this.emit('afterExit', code, signal) || ret;
        }
        return ret;
    }
}
class SignalExitBase {
}
const signalExitWrap = (handler) => {
    return {
        onExit(cb, opts) {
            return handler.onExit(cb, opts);
        },
        load() {
            return handler.load();
        },
        unload() {
            return handler.unload();
        },
    };
};
class SignalExitFallback extends SignalExitBase {
    onExit() {
        return () => { };
    }
    load() { }
    unload() { }
}
class SignalExit extends SignalExitBase {
    // "SIGHUP" throws an `ENOSYS` error on Windows,
    // so use a supported signal instead
    /* c8 ignore start */
    #hupSig = process$1.platform === 'win32' ? 'SIGINT' : 'SIGHUP';
    /* c8 ignore stop */
    #emitter = new Emitter();
    #process;
    #originalProcessEmit;
    #originalProcessReallyExit;
    #sigListeners = {};
    #loaded = false;
    constructor(process) {
        super();
        this.#process = process;
        // { <signal>: <listener fn>, ... }
        this.#sigListeners = {};
        for (const sig of signals) {
            this.#sigListeners[sig] = () => {
                // If there are no other listeners, an exit is coming!
                // Simplest way: remove us and then re-send the signal.
                // We know that this will kill the process, so we can
                // safely emit now.
                const listeners = this.#process.listeners(sig);
                let { count } = this.#emitter;
                // This is a workaround for the fact that signal-exit v3 and signal
                // exit v4 are not aware of each other, and each will attempt to let
                // the other handle it, so neither of them do. To correct this, we
                // detect if we're the only handler *except* for previous versions
                // of signal-exit, and increment by the count of listeners it has
                // created.
                /* c8 ignore start */
                const p = process;
                if (typeof p.__signal_exit_emitter__ === 'object' &&
                    typeof p.__signal_exit_emitter__.count === 'number') {
                    count += p.__signal_exit_emitter__.count;
                }
                /* c8 ignore stop */
                if (listeners.length === count) {
                    this.unload();
                    const ret = this.#emitter.emit('exit', null, sig);
                    /* c8 ignore start */
                    const s = sig === 'SIGHUP' ? this.#hupSig : sig;
                    if (!ret)
                        process.kill(process.pid, s);
                    /* c8 ignore stop */
                }
            };
        }
        this.#originalProcessReallyExit = process.reallyExit;
        this.#originalProcessEmit = process.emit;
    }
    onExit(cb, opts) {
        /* c8 ignore start */
        if (!processOk(this.#process)) {
            return () => { };
        }
        /* c8 ignore stop */
        if (this.#loaded === false) {
            this.load();
        }
        const ev = opts?.alwaysLast ? 'afterExit' : 'exit';
        this.#emitter.on(ev, cb);
        return () => {
            this.#emitter.removeListener(ev, cb);
            if (this.#emitter.listeners['exit'].length === 0 &&
                this.#emitter.listeners['afterExit'].length === 0) {
                this.unload();
            }
        };
    }
    load() {
        if (this.#loaded) {
            return;
        }
        this.#loaded = true;
        // This is the number of onSignalExit's that are in play.
        // It's important so that we can count the correct number of
        // listeners on signals, and don't wait for the other one to
        // handle it instead of us.
        this.#emitter.count += 1;
        for (const sig of signals) {
            try {
                const fn = this.#sigListeners[sig];
                if (fn)
                    this.#process.on(sig, fn);
            }
            catch (_) { }
        }
        this.#process.emit = (ev, ...a) => {
            return this.#processEmit(ev, ...a);
        };
        this.#process.reallyExit = (code) => {
            return this.#processReallyExit(code);
        };
    }
    unload() {
        if (!this.#loaded) {
            return;
        }
        this.#loaded = false;
        signals.forEach(sig => {
            const listener = this.#sigListeners[sig];
            /* c8 ignore start */
            if (!listener) {
                throw new Error('Listener not defined for signal: ' + sig);
            }
            /* c8 ignore stop */
            try {
                this.#process.removeListener(sig, listener);
                /* c8 ignore start */
            }
            catch (_) { }
            /* c8 ignore stop */
        });
        this.#process.emit = this.#originalProcessEmit;
        this.#process.reallyExit = this.#originalProcessReallyExit;
        this.#emitter.count -= 1;
    }
    #processReallyExit(code) {
        /* c8 ignore start */
        if (!processOk(this.#process)) {
            return 0;
        }
        this.#process.exitCode = code || 0;
        /* c8 ignore stop */
        this.#emitter.emit('exit', this.#process.exitCode, null);
        return this.#originalProcessReallyExit.call(this.#process, this.#process.exitCode);
    }
    #processEmit(ev, ...args) {
        const og = this.#originalProcessEmit;
        if (ev === 'exit' && processOk(this.#process)) {
            if (typeof args[0] === 'number') {
                this.#process.exitCode = args[0];
                /* c8 ignore start */
            }
            /* c8 ignore start */
            const ret = og.call(this.#process, ev, ...args);
            /* c8 ignore start */
            this.#emitter.emit('exit', this.#process.exitCode, null);
            /* c8 ignore stop */
            return ret;
        }
        else {
            return og.call(this.#process, ev, ...args);
        }
    }
}
const process$1 = globalThis.process;
// wrap so that we call the method on the actual handler, without
// exporting it directly.
const { 
/**
 * Called when the process is exiting, whether via signal, explicit
 * exit, or running out of stuff to do.
 *
 * If the global process object is not suitable for instrumentation,
 * then this will be a no-op.
 *
 * Returns a function that may be used to unload signal-exit.
 */
onExit, 
/**
 * Load the listeners.  Likely you never need to call this, unless
 * doing a rather deep integration with signal-exit functionality.
 * Mostly exposed for the benefit of testing.
 *
 * @internal
 */
load, 
/**
 * Unload the listeners.  Likely you never need to call this, unless
 * doing a rather deep integration with signal-exit functionality.
 * Mostly exposed for the benefit of testing.
 *
 * @internal
 */
unload, } = signalExitWrap(processOk(process$1) ? new SignalExit(process$1) : new SignalExitFallback());

const DEFAULT_FORCE_KILL_TIMEOUT = 1000 * 5;

// Monkey-patches `childProcess.kill()` to add `forceKillAfterTimeout` behavior
const spawnedKill = (kill, signal = 'SIGTERM', options = {}) => {
	const killResult = kill(signal);
	setKillTimeout(kill, signal, options, killResult);
	return killResult;
};

const setKillTimeout = (kill, signal, options, killResult) => {
	if (!shouldForceKill(signal, options, killResult)) {
		return;
	}

	const timeout = getForceKillAfterTimeout(options);
	const t = setTimeout(() => {
		kill('SIGKILL');
	}, timeout);

	// Guarded because there's no `.unref()` when `execa` is used in the renderer
	// process in Electron. This cannot be tested since we don't run tests in
	// Electron.
	// istanbul ignore else
	if (t.unref) {
		t.unref();
	}
};

const shouldForceKill = (signal, {forceKillAfterTimeout}, killResult) => isSigterm(signal) && forceKillAfterTimeout !== false && killResult;

const isSigterm = signal => signal === os__default.default.constants.signals.SIGTERM
		|| (typeof signal === 'string' && signal.toUpperCase() === 'SIGTERM');

const getForceKillAfterTimeout = ({forceKillAfterTimeout = true}) => {
	if (forceKillAfterTimeout === true) {
		return DEFAULT_FORCE_KILL_TIMEOUT;
	}

	if (!Number.isFinite(forceKillAfterTimeout) || forceKillAfterTimeout < 0) {
		throw new TypeError(`Expected the \`forceKillAfterTimeout\` option to be a non-negative integer, got \`${forceKillAfterTimeout}\` (${typeof forceKillAfterTimeout})`);
	}

	return forceKillAfterTimeout;
};

// `childProcess.cancel()`
const spawnedCancel = (spawned, context) => {
	const killResult = spawned.kill();

	if (killResult) {
		context.isCanceled = true;
	}
};

const timeoutKill = (spawned, signal, reject) => {
	spawned.kill(signal);
	reject(Object.assign(new Error('Timed out'), {timedOut: true, signal}));
};

// `timeout` option handling
const setupTimeout = (spawned, {timeout, killSignal = 'SIGTERM'}, spawnedPromise) => {
	if (timeout === 0 || timeout === undefined) {
		return spawnedPromise;
	}

	let timeoutId;
	const timeoutPromise = new Promise((resolve, reject) => {
		timeoutId = setTimeout(() => {
			timeoutKill(spawned, killSignal, reject);
		}, timeout);
	});

	const safeSpawnedPromise = spawnedPromise.finally(() => {
		clearTimeout(timeoutId);
	});

	return Promise.race([timeoutPromise, safeSpawnedPromise]);
};

const validateTimeout = ({timeout}) => {
	if (timeout !== undefined && (!Number.isFinite(timeout) || timeout < 0)) {
		throw new TypeError(`Expected the \`timeout\` option to be a non-negative integer, got \`${timeout}\` (${typeof timeout})`);
	}
};

// `cleanup` option handling
const setExitHandler = async (spawned, {cleanup, detached}, timedPromise) => {
	if (!cleanup || detached) {
		return timedPromise;
	}

	const removeExitHandler = onExit(() => {
		spawned.kill();
	});

	return timedPromise.finally(() => {
		removeExitHandler();
	});
};

function isStream(stream) {
	return stream !== null
		&& typeof stream === 'object'
		&& typeof stream.pipe === 'function';
}

function isWritableStream(stream) {
	return isStream(stream)
		&& stream.writable !== false
		&& typeof stream._write === 'function'
		&& typeof stream._writableState === 'object';
}

const isExecaChildProcess = target => target instanceof childProcess.ChildProcess && typeof target.then === 'function';

const pipeToTarget = (spawned, streamName, target) => {
	if (typeof target === 'string') {
		spawned[streamName].pipe(node_fs.createWriteStream(target));
		return spawned;
	}

	if (isWritableStream(target)) {
		spawned[streamName].pipe(target);
		return spawned;
	}

	if (!isExecaChildProcess(target)) {
		throw new TypeError('The second argument must be a string, a stream or an Execa child process.');
	}

	if (!isWritableStream(target.stdin)) {
		throw new TypeError('The target child process\'s stdin must be available.');
	}

	spawned[streamName].pipe(target.stdin);
	return target;
};

const addPipeMethods = spawned => {
	if (spawned.stdout !== null) {
		spawned.pipeStdout = pipeToTarget.bind(undefined, spawned, 'stdout');
	}

	if (spawned.stderr !== null) {
		spawned.pipeStderr = pipeToTarget.bind(undefined, spawned, 'stderr');
	}

	if (spawned.all !== undefined) {
		spawned.pipeAll = pipeToTarget.bind(undefined, spawned, 'all');
	}
};

const getStreamContents = async (stream, {init, convertChunk, getSize, truncateChunk, addChunk, getFinalChunk, finalize}, {maxBuffer = Number.POSITIVE_INFINITY} = {}) => {
	if (!isAsyncIterable(stream)) {
		throw new Error('The first argument must be a Readable, a ReadableStream, or an async iterable.');
	}

	const state = init();
	state.length = 0;

	try {
		for await (const chunk of stream) {
			const chunkType = getChunkType(chunk);
			const convertedChunk = convertChunk[chunkType](chunk, state);
			appendChunk({convertedChunk, state, getSize, truncateChunk, addChunk, maxBuffer});
		}

		appendFinalChunk({state, convertChunk, getSize, truncateChunk, addChunk, getFinalChunk, maxBuffer});
		return finalize(state);
	} catch (error) {
		error.bufferedData = finalize(state);
		throw error;
	}
};

const appendFinalChunk = ({state, getSize, truncateChunk, addChunk, getFinalChunk, maxBuffer}) => {
	const convertedChunk = getFinalChunk(state);
	if (convertedChunk !== undefined) {
		appendChunk({convertedChunk, state, getSize, truncateChunk, addChunk, maxBuffer});
	}
};

const appendChunk = ({convertedChunk, state, getSize, truncateChunk, addChunk, maxBuffer}) => {
	const chunkSize = getSize(convertedChunk);
	const newLength = state.length + chunkSize;

	if (newLength <= maxBuffer) {
		addNewChunk(convertedChunk, state, addChunk, newLength);
		return;
	}

	const truncatedChunk = truncateChunk(convertedChunk, maxBuffer - state.length);

	if (truncatedChunk !== undefined) {
		addNewChunk(truncatedChunk, state, addChunk, maxBuffer);
	}

	throw new MaxBufferError();
};

const addNewChunk = (convertedChunk, state, addChunk, newLength) => {
	state.contents = addChunk(convertedChunk, state, newLength);
	state.length = newLength;
};

const isAsyncIterable = stream => typeof stream === 'object' && stream !== null && typeof stream[Symbol.asyncIterator] === 'function';

const getChunkType = chunk => {
	const typeOfChunk = typeof chunk;

	if (typeOfChunk === 'string') {
		return 'string';
	}

	if (typeOfChunk !== 'object' || chunk === null) {
		return 'others';
	}

	// eslint-disable-next-line n/prefer-global/buffer
	if (globalThis.Buffer?.isBuffer(chunk)) {
		return 'buffer';
	}

	const prototypeName = objectToString.call(chunk);

	if (prototypeName === '[object ArrayBuffer]') {
		return 'arrayBuffer';
	}

	if (prototypeName === '[object DataView]') {
		return 'dataView';
	}

	if (
		Number.isInteger(chunk.byteLength)
		&& Number.isInteger(chunk.byteOffset)
		&& objectToString.call(chunk.buffer) === '[object ArrayBuffer]'
	) {
		return 'typedArray';
	}

	return 'others';
};

const {toString: objectToString} = Object.prototype;

class MaxBufferError extends Error {
	name = 'MaxBufferError';

	constructor() {
		super('maxBuffer exceeded');
	}
}

const identity = value => value;

const noop = () => undefined;

const getContentsProp = ({contents}) => contents;

const throwObjectStream = chunk => {
	throw new Error(`Streams in object mode are not supported: ${String(chunk)}`);
};

const getLengthProp = convertedChunk => convertedChunk.length;

async function getStreamAsArrayBuffer(stream, options) {
	return getStreamContents(stream, arrayBufferMethods, options);
}

const initArrayBuffer = () => ({contents: new ArrayBuffer(0)});

const useTextEncoder = chunk => textEncoder.encode(chunk);
const textEncoder = new TextEncoder();

const useUint8Array = chunk => new Uint8Array(chunk);

const useUint8ArrayWithOffset = chunk => new Uint8Array(chunk.buffer, chunk.byteOffset, chunk.byteLength);

const truncateArrayBufferChunk = (convertedChunk, chunkSize) => convertedChunk.slice(0, chunkSize);

// `contents` is an increasingly growing `Uint8Array`.
const addArrayBufferChunk = (convertedChunk, {contents, length: previousLength}, length) => {
	const newContents = hasArrayBufferResize() ? resizeArrayBuffer(contents, length) : resizeArrayBufferSlow(contents, length);
	new Uint8Array(newContents).set(convertedChunk, previousLength);
	return newContents;
};

// Without `ArrayBuffer.resize()`, `contents` size is always a power of 2.
// This means its last bytes are zeroes (not stream data), which need to be
// trimmed at the end with `ArrayBuffer.slice()`.
const resizeArrayBufferSlow = (contents, length) => {
	if (length <= contents.byteLength) {
		return contents;
	}

	const arrayBuffer = new ArrayBuffer(getNewContentsLength(length));
	new Uint8Array(arrayBuffer).set(new Uint8Array(contents), 0);
	return arrayBuffer;
};

// With `ArrayBuffer.resize()`, `contents` size matches exactly the size of
// the stream data. It does not include extraneous zeroes to trim at the end.
// The underlying `ArrayBuffer` does allocate a number of bytes that is a power
// of 2, but those bytes are only visible after calling `ArrayBuffer.resize()`.
const resizeArrayBuffer = (contents, length) => {
	if (length <= contents.maxByteLength) {
		contents.resize(length);
		return contents;
	}

	const arrayBuffer = new ArrayBuffer(length, {maxByteLength: getNewContentsLength(length)});
	new Uint8Array(arrayBuffer).set(new Uint8Array(contents), 0);
	return arrayBuffer;
};

// Retrieve the closest `length` that is both >= and a power of 2
const getNewContentsLength = length => SCALE_FACTOR ** Math.ceil(Math.log(length) / Math.log(SCALE_FACTOR));

const SCALE_FACTOR = 2;

const finalizeArrayBuffer = ({contents, length}) => hasArrayBufferResize() ? contents : contents.slice(0, length);

// `ArrayBuffer.slice()` is slow. When `ArrayBuffer.resize()` is available
// (Node >=20.0.0, Safari >=16.4 and Chrome), we can use it instead.
// eslint-disable-next-line no-warning-comments
// TODO: remove after dropping support for Node 20.
// eslint-disable-next-line no-warning-comments
// TODO: use `ArrayBuffer.transferToFixedLength()` instead once it is available
const hasArrayBufferResize = () => 'resize' in ArrayBuffer.prototype;

const arrayBufferMethods = {
	init: initArrayBuffer,
	convertChunk: {
		string: useTextEncoder,
		buffer: useUint8Array,
		arrayBuffer: useUint8Array,
		dataView: useUint8ArrayWithOffset,
		typedArray: useUint8ArrayWithOffset,
		others: throwObjectStream,
	},
	getSize: getLengthProp,
	truncateChunk: truncateArrayBufferChunk,
	addChunk: addArrayBufferChunk,
	getFinalChunk: noop,
	finalize: finalizeArrayBuffer,
};

async function getStreamAsBuffer(stream, options) {
	if (!('Buffer' in globalThis)) {
		throw new Error('getStreamAsBuffer() is only supported in Node.js');
	}

	try {
		return arrayBufferToNodeBuffer(await getStreamAsArrayBuffer(stream, options));
	} catch (error) {
		if (error.bufferedData !== undefined) {
			error.bufferedData = arrayBufferToNodeBuffer(error.bufferedData);
		}

		throw error;
	}
}

// eslint-disable-next-line n/prefer-global/buffer
const arrayBufferToNodeBuffer = arrayBuffer => globalThis.Buffer.from(arrayBuffer);

async function getStreamAsString(stream, options) {
	return getStreamContents(stream, stringMethods, options);
}

const initString = () => ({contents: '', textDecoder: new TextDecoder()});

const useTextDecoder = (chunk, {textDecoder}) => textDecoder.decode(chunk, {stream: true});

const addStringChunk = (convertedChunk, {contents}) => contents + convertedChunk;

const truncateStringChunk = (convertedChunk, chunkSize) => convertedChunk.slice(0, chunkSize);

const getFinalStringChunk = ({textDecoder}) => {
	const finalChunk = textDecoder.decode();
	return finalChunk === '' ? undefined : finalChunk;
};

const stringMethods = {
	init: initString,
	convertChunk: {
		string: identity,
		buffer: useTextDecoder,
		arrayBuffer: useTextDecoder,
		dataView: useTextDecoder,
		typedArray: useTextDecoder,
		others: throwObjectStream,
	},
	getSize: getLengthProp,
	truncateChunk: truncateStringChunk,
	addChunk: addStringChunk,
	getFinalChunk: getFinalStringChunk,
	finalize: getContentsProp,
};

function getDefaultExportFromCjs (x) {
	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
}

const PassThrough = require$$0__default.default.PassThrough;

var mergeStream = function (/*streams...*/) {
  var sources = [];
  var output  = new PassThrough({objectMode: true});

  output.setMaxListeners(0);

  output.add = add;
  output.isEmpty = isEmpty;

  output.on('unpipe', remove);

  Array.prototype.slice.call(arguments).forEach(add);

  return output

  function add (source) {
    if (Array.isArray(source)) {
      source.forEach(add);
      return this
    }

    sources.push(source);
    source.once('end', remove.bind(null, source));
    source.once('error', output.emit.bind(output, 'error'));
    source.pipe(output, {end: false});
    return this
  }

  function isEmpty () {
    return sources.length == 0;
  }

  function remove (source) {
    sources = sources.filter(function (it) { return it !== source });
    if (!sources.length && output.readable) { output.end(); }
  }
};

const mergeStream$1 = /*@__PURE__*/getDefaultExportFromCjs(mergeStream);

const validateInputOptions = input => {
	if (input !== undefined) {
		throw new TypeError('The `input` and `inputFile` options cannot be both set.');
	}
};

const getInputSync = ({input, inputFile}) => {
	if (typeof inputFile !== 'string') {
		return input;
	}

	validateInputOptions(input);
	return node_fs.readFileSync(inputFile);
};

// `input` and `inputFile` option in sync mode
const handleInputSync = options => {
	const input = getInputSync(options);

	if (isStream(input)) {
		throw new TypeError('The `input` option cannot be a stream in sync mode');
	}

	return input;
};

const getInput = ({input, inputFile}) => {
	if (typeof inputFile !== 'string') {
		return input;
	}

	validateInputOptions(input);
	return node_fs.createReadStream(inputFile);
};

// `input` and `inputFile` option in async mode
const handleInput = (spawned, options) => {
	const input = getInput(options);

	if (input === undefined) {
		return;
	}

	if (isStream(input)) {
		input.pipe(spawned.stdin);
	} else {
		spawned.stdin.end(input);
	}
};

// `all` interleaves `stdout` and `stderr`
const makeAllStream = (spawned, {all}) => {
	if (!all || (!spawned.stdout && !spawned.stderr)) {
		return;
	}

	const mixed = mergeStream$1();

	if (spawned.stdout) {
		mixed.add(spawned.stdout);
	}

	if (spawned.stderr) {
		mixed.add(spawned.stderr);
	}

	return mixed;
};

// On failure, `result.stdout|stderr|all` should contain the currently buffered stream
const getBufferedData = async (stream, streamPromise) => {
	// When `buffer` is `false`, `streamPromise` is `undefined` and there is no buffered data to retrieve
	if (!stream || streamPromise === undefined) {
		return;
	}

	// Wait for the `all` stream to receive the last chunk before destroying the stream
	await promises.setTimeout(0);

	stream.destroy();

	try {
		return await streamPromise;
	} catch (error) {
		return error.bufferedData;
	}
};

const getStreamPromise = (stream, {encoding, buffer, maxBuffer}) => {
	if (!stream || !buffer) {
		return;
	}

	// eslint-disable-next-line unicorn/text-encoding-identifier-case
	if (encoding === 'utf8' || encoding === 'utf-8') {
		return getStreamAsString(stream, {maxBuffer});
	}

	if (encoding === null || encoding === 'buffer') {
		return getStreamAsBuffer(stream, {maxBuffer});
	}

	return applyEncoding(stream, maxBuffer, encoding);
};

const applyEncoding = async (stream, maxBuffer, encoding) => {
	const buffer = await getStreamAsBuffer(stream, {maxBuffer});
	return buffer.toString(encoding);
};

// Retrieve result of child process: exit code, signal, error, streams (stdout/stderr/all)
const getSpawnedResult = async ({stdout, stderr, all}, {encoding, buffer, maxBuffer}, processDone) => {
	const stdoutPromise = getStreamPromise(stdout, {encoding, buffer, maxBuffer});
	const stderrPromise = getStreamPromise(stderr, {encoding, buffer, maxBuffer});
	const allPromise = getStreamPromise(all, {encoding, buffer, maxBuffer: maxBuffer * 2});

	try {
		return await Promise.all([processDone, stdoutPromise, stderrPromise, allPromise]);
	} catch (error) {
		return Promise.all([
			{error, signal: error.signal, timedOut: error.timedOut},
			getBufferedData(stdout, stdoutPromise),
			getBufferedData(stderr, stderrPromise),
			getBufferedData(all, allPromise),
		]);
	}
};

// eslint-disable-next-line unicorn/prefer-top-level-await
const nativePromisePrototype = (async () => {})().constructor.prototype;

const descriptors = ['then', 'catch', 'finally'].map(property => [
	property,
	Reflect.getOwnPropertyDescriptor(nativePromisePrototype, property),
]);

// The return value is a mixin of `childProcess` and `Promise`
const mergePromise = (spawned, promise) => {
	for (const [property, descriptor] of descriptors) {
		// Starting the main `promise` is deferred to avoid consuming streams
		const value = typeof promise === 'function'
			? (...args) => Reflect.apply(descriptor.value, promise(), args)
			: descriptor.value.bind(promise);

		Reflect.defineProperty(spawned, property, {...descriptor, value});
	}
};

// Use promises instead of `child_process` events
const getSpawnedPromise = spawned => new Promise((resolve, reject) => {
	spawned.on('exit', (exitCode, signal) => {
		resolve({exitCode, signal});
	});

	spawned.on('error', error => {
		reject(error);
	});

	if (spawned.stdin) {
		spawned.stdin.on('error', error => {
			reject(error);
		});
	}
});

const normalizeArgs = (file, args = []) => {
	if (!Array.isArray(args)) {
		return [file];
	}

	return [file, ...args];
};

const NO_ESCAPE_REGEXP = /^[\w.-]+$/;

const escapeArg = arg => {
	if (typeof arg !== 'string' || NO_ESCAPE_REGEXP.test(arg)) {
		return arg;
	}

	return `"${arg.replaceAll('"', '\\"')}"`;
};

const joinCommand = (file, args) => normalizeArgs(file, args).join(' ');

const getEscapedCommand = (file, args) => normalizeArgs(file, args).map(arg => escapeArg(arg)).join(' ');

const SPACES_REGEXP = / +/g;

// Handle `execaCommand()`
const parseCommand = command => {
	const tokens = [];
	for (const token of command.trim().split(SPACES_REGEXP)) {
		// Allow spaces to be escaped by a backslash if not meant as a delimiter
		const previousToken = tokens.at(-1);
		if (previousToken && previousToken.endsWith('\\')) {
			// Merge previous token with current one
			tokens[tokens.length - 1] = `${previousToken.slice(0, -1)} ${token}`;
		} else {
			tokens.push(token);
		}
	}

	return tokens;
};

const parseExpression = expression => {
	const typeOfExpression = typeof expression;

	if (typeOfExpression === 'string') {
		return expression;
	}

	if (typeOfExpression === 'number') {
		return String(expression);
	}

	if (
		typeOfExpression === 'object'
		&& expression !== null
		&& !(expression instanceof childProcess.ChildProcess)
		&& 'stdout' in expression
	) {
		const typeOfStdout = typeof expression.stdout;

		if (typeOfStdout === 'string') {
			return expression.stdout;
		}

		if (node_buffer.Buffer.isBuffer(expression.stdout)) {
			return expression.stdout.toString();
		}

		throw new TypeError(`Unexpected "${typeOfStdout}" stdout in template expression`);
	}

	throw new TypeError(`Unexpected "${typeOfExpression}" in template expression`);
};

const concatTokens = (tokens, nextTokens, isNew) => isNew || tokens.length === 0 || nextTokens.length === 0
	? [...tokens, ...nextTokens]
	: [
		...tokens.slice(0, -1),
		`${tokens.at(-1)}${nextTokens[0]}`,
		...nextTokens.slice(1),
	];

const parseTemplate = ({templates, expressions, tokens, index, template}) => {
	const templateString = template ?? templates.raw[index];
	const templateTokens = templateString.split(SPACES_REGEXP).filter(Boolean);
	const newTokens = concatTokens(
		tokens,
		templateTokens,
		templateString.startsWith(' '),
	);

	if (index === expressions.length) {
		return newTokens;
	}

	const expression = expressions[index];
	const expressionTokens = Array.isArray(expression)
		? expression.map(expression => parseExpression(expression))
		: [parseExpression(expression)];
	return concatTokens(
		newTokens,
		expressionTokens,
		templateString.endsWith(' '),
	);
};

const parseTemplates = (templates, expressions) => {
	let tokens = [];

	for (const [index, template] of templates.entries()) {
		tokens = parseTemplate({templates, expressions, tokens, index, template});
	}

	return tokens;
};

const verboseDefault = node_util.debuglog('execa').enabled;

const padField = (field, padding) => String(field).padStart(padding, '0');

const getTimestamp = () => {
	const date = new Date();
	return `${padField(date.getHours(), 2)}:${padField(date.getMinutes(), 2)}:${padField(date.getSeconds(), 2)}.${padField(date.getMilliseconds(), 3)}`;
};

const logCommand = (escapedCommand, {verbose}) => {
	if (!verbose) {
		return;
	}

	process__default.default.stderr.write(`[${getTimestamp()}] ${escapedCommand}\n`);
};

const DEFAULT_MAX_BUFFER = 1000 * 1000 * 100;

const getEnv = ({env: envOption, extendEnv, preferLocal, localDir, execPath}) => {
	const env = extendEnv ? {...process__default.default.env, ...envOption} : envOption;

	if (preferLocal) {
		return npmRunPathEnv({env, cwd: localDir, execPath});
	}

	return env;
};

function parse(command, args, options) {
    // Normalize arguments, similar to nodejs
    if (args && !Array.isArray(args)) {
        options = args;
        args = null;
    }

    args = args ? args.slice(0) : []; // Clone array to avoid changing the original
    options = Object.assign({}, options); // Clone object to avoid changing the original

    // Build our parsed object
    const parsed = {
        command,
        args,
        options,
        file: undefined,
        original: {
            command,
            args,
        },
    };

    return parsed
}

const handleArguments = (file, args, options = {}) => {
	const parsed = parse(file, args, options);
	file = parsed.command;
	args = parsed.args;
	options = parsed.options;

	options = {
		maxBuffer: DEFAULT_MAX_BUFFER,
		buffer: true,
		stripFinalNewline: true,
		extendEnv: true,
		preferLocal: false,
		localDir: options.cwd || process__default.default.cwd(),
		execPath: process__default.default.execPath,
		encoding: 'utf8',
		reject: true,
		cleanup: true,
		all: false,
		windowsHide: true,
		verbose: verboseDefault,
		...options,
	};

	options.env = getEnv(options);

	options.stdio = normalizeStdio(options);

	if (process__default.default.platform === 'win32' && path__default.default.basename(file, '.exe') === 'cmd') {
		// #116
		args.unshift('/q');
	}

	return {file, args, options, parsed};
};

const handleOutput = (options, value, error) => {
	if (typeof value !== 'string' && !node_buffer.Buffer.isBuffer(value)) {
		// When `execaSync()` errors, we normalize it to '' to mimic `execa()`
		return error === undefined ? undefined : '';
	}

	if (options.stripFinalNewline) {
		return stripFinalNewline(value);
	}

	return value;
};

function execa(file, args, options) {
	const parsed = handleArguments(file, args, options);
	const command = joinCommand(file, args);
	const escapedCommand = getEscapedCommand(file, args);
	logCommand(escapedCommand, parsed.options);

	validateTimeout(parsed.options);

	let spawned;
	try {
		spawned = childProcess__default.default.spawn(parsed.file, parsed.args, parsed.options);
	} catch (error) {
		// Ensure the returned error is always both a promise and a child process
		const dummySpawned = new childProcess__default.default.ChildProcess();
		const errorPromise = Promise.reject(makeError({
			error,
			stdout: '',
			stderr: '',
			all: '',
			command,
			escapedCommand,
			parsed,
			timedOut: false,
			isCanceled: false,
			killed: false,
		}));
		mergePromise(dummySpawned, errorPromise);
		return dummySpawned;
	}

	const spawnedPromise = getSpawnedPromise(spawned);
	const timedPromise = setupTimeout(spawned, parsed.options, spawnedPromise);
	const processDone = setExitHandler(spawned, parsed.options, timedPromise);

	const context = {isCanceled: false};

	spawned.kill = spawnedKill.bind(null, spawned.kill.bind(spawned));
	spawned.cancel = spawnedCancel.bind(null, spawned, context);

	const handlePromise = async () => {
		const [{error, exitCode, signal, timedOut}, stdoutResult, stderrResult, allResult] = await getSpawnedResult(spawned, parsed.options, processDone);
		const stdout = handleOutput(parsed.options, stdoutResult);
		const stderr = handleOutput(parsed.options, stderrResult);
		const all = handleOutput(parsed.options, allResult);

		if (error || exitCode !== 0 || signal !== null) {
			const returnedError = makeError({
				error,
				exitCode,
				signal,
				stdout,
				stderr,
				all,
				command,
				escapedCommand,
				parsed,
				timedOut,
				isCanceled: (parsed.options.signal ? parsed.options.signal.aborted : false),
				killed: spawned.killed,
			});

			if (!parsed.options.reject) {
				return returnedError;
			}

			throw returnedError;
		}

		return {
			command,
			escapedCommand,
			exitCode: 0,
			stdout,
			stderr,
			all,
			failed: false,
			timedOut: false,
			isCanceled: false,
			killed: false,
		};
	};

	const handlePromiseOnce = onetime(handlePromise);

	handleInput(spawned, parsed.options);

	spawned.all = makeAllStream(spawned, parsed.options);

	addPipeMethods(spawned);
	mergePromise(spawned, handlePromiseOnce);
	return spawned;
}

function execaSync(file, args, options) {
	const parsed = handleArguments(file, args, options);
	const command = joinCommand(file, args);
	const escapedCommand = getEscapedCommand(file, args);
	logCommand(escapedCommand, parsed.options);

	const input = handleInputSync(parsed.options);

	let result;
	try {
		result = childProcess__default.default.spawnSync(parsed.file, parsed.args, {...parsed.options, input});
	} catch (error) {
		throw makeError({
			error,
			stdout: '',
			stderr: '',
			all: '',
			command,
			escapedCommand,
			parsed,
			timedOut: false,
			isCanceled: false,
			killed: false,
		});
	}

	const stdout = handleOutput(parsed.options, result.stdout, result.error);
	const stderr = handleOutput(parsed.options, result.stderr, result.error);

	if (result.error || result.status !== 0 || result.signal !== null) {
		const error = makeError({
			stdout,
			stderr,
			error: result.error,
			signal: result.signal,
			exitCode: result.status,
			command,
			escapedCommand,
			parsed,
			timedOut: result.error && result.error.code === 'ETIMEDOUT',
			isCanceled: false,
			killed: result.signal !== null,
		});

		if (!parsed.options.reject) {
			return error;
		}

		throw error;
	}

	return {
		command,
		escapedCommand,
		exitCode: 0,
		stdout,
		stderr,
		failed: false,
		timedOut: false,
		isCanceled: false,
		killed: false,
	};
}

const normalizeScriptStdin = ({input, inputFile, stdio}) => input === undefined && inputFile === undefined && stdio === undefined
	? {stdin: 'inherit'}
	: {};

const normalizeScriptOptions = (options = {}) => ({
	preferLocal: true,
	...normalizeScriptStdin(options),
	...options,
});

function create$(options) {
	function $(templatesOrOptions, ...expressions) {
		if (!Array.isArray(templatesOrOptions)) {
			return create$({...options, ...templatesOrOptions});
		}

		const [file, ...args] = parseTemplates(templatesOrOptions, expressions);
		return execa(file, args, normalizeScriptOptions(options));
	}

	$.sync = (templates, ...expressions) => {
		if (!Array.isArray(templates)) {
			throw new TypeError('Please use $(options).sync`command` instead of $.sync(options)`command`.');
		}

		const [file, ...args] = parseTemplates(templates, expressions);
		return execaSync(file, args, normalizeScriptOptions(options));
	};

	return $;
}

const $ = create$();

function execaCommand(command, options) {
	const [file, ...args] = parseCommand(command);
	return execa(file, args, options);
}

function execaCommandSync(command, options) {
	const [file, ...args] = parseCommand(command);
	return execaSync(file, args, options);
}

function execaNode(scriptPath, args, options = {}) {
	if (args && !Array.isArray(args) && typeof args === 'object') {
		options = args;
		args = [];
	}

	const stdio = normalizeStdioNode(options);
	const defaultExecArgv = process__default.default.execArgv.filter(arg => !arg.startsWith('--inspect'));

	const {
		nodePath = process__default.default.execPath,
		nodeOptions = defaultExecArgv,
	} = options;

	return execa(
		nodePath,
		[
			...nodeOptions,
			scriptPath,
			...(Array.isArray(args) ? args : []),
		],
		{
			...options,
			stdin: undefined,
			stdout: undefined,
			stderr: undefined,
			stdio,
			shell: false,
		},
	);
}

exports.$ = $;
exports.execa = execa;
exports.execaCommand = execaCommand;
exports.execaCommandSync = execaCommandSync;
exports.execaNode = execaNode;
exports.execaSync = execaSync;