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Dir : ~/var/www/invoice/node_modules/execa/

Edit File: index.js

'use strict';
const path = require('path');
const childProcess = require('child_process');
const crossSpawn = require('cross-spawn');
const stripEof = require('strip-eof');
const npmRunPath = require('npm-run-path');
const isStream = require('is-stream');
const _getStream = require('get-stream');
const pFinally = require('p-finally');
const onExit = require('signal-exit');
const errname = require('./lib/errname');
const stdio = require('./lib/stdio');

const TEN_MEGABYTES = 1000 * 1000 * 10;

function handleArgs(cmd, args, opts) {
	let parsed;

opts = Object.assign({
		extendEnv: true,
		env: {}
	}, opts);

if (opts.extendEnv) {
		opts.env = Object.assign({}, process.env, opts.env);
	}

if (opts.__winShell === true) {
		delete opts.__winShell;
		parsed = {
			command: cmd,
			args,
			options: opts,
			file: cmd,
			original: {
				cmd,
				args
			}
		};
	} else {
		parsed = crossSpawn._parse(cmd, args, opts);
	}

opts = Object.assign({
		maxBuffer: TEN_MEGABYTES,
		buffer: true,
		stripEof: true,
		preferLocal: true,
		localDir: parsed.options.cwd || process.cwd(),
		encoding: 'utf8',
		reject: true,
		cleanup: true
	}, parsed.options);

opts.stdio = stdio(opts);

if (opts.preferLocal) {
		opts.env = npmRunPath.env(Object.assign({}, opts, {cwd: opts.localDir}));
	}

if (opts.detached) {
		// #115
		opts.cleanup = false;
	}

if (process.platform === 'win32' && path.basename(parsed.command) === 'cmd.exe') {
		// #116
		parsed.args.unshift('/q');
	}

return {
		cmd: parsed.command,
		args: parsed.args,
		opts,
		parsed
	};
}

function handleInput(spawned, input) {
	if (input === null || input === undefined) {
		return;
	}

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

function handleOutput(opts, val) {
	if (val && opts.stripEof) {
		val = stripEof(val);
	}

return val;
}

function handleShell(fn, cmd, opts) {
	let file = '/bin/sh';
	let args = ['-c', cmd];

opts = Object.assign({}, opts);

if (process.platform === 'win32') {
		opts.__winShell = true;
		file = process.env.comspec || 'cmd.exe';
		args = ['/s', '/c', `"${cmd}"`];
		opts.windowsVerbatimArguments = true;
	}

if (opts.shell) {
		file = opts.shell;
		delete opts.shell;
	}

return fn(file, args, opts);
}

function getStream(process, stream, {encoding, buffer, maxBuffer}) {
	if (!process[stream]) {
		return null;
	}

let ret;

if (!buffer) {
		// TODO: Use `ret = util.promisify(stream.finished)(process[stream]);` when targeting Node.js 10
		ret = new Promise((resolve, reject) => {
			process[stream]
				.once('end', resolve)
				.once('error', reject);
		});
	} else if (encoding) {
		ret = _getStream(process[stream], {
			encoding,
			maxBuffer
		});
	} else {
		ret = _getStream.buffer(process[stream], {maxBuffer});
	}

return ret.catch(err => {
		err.stream = stream;
		err.message = `${stream} ${err.message}`;
		throw err;
	});
}

function makeError(result, options) {
	const {stdout, stderr} = result;

let err = result.error;
	const {code, signal} = result;

const {parsed, joinedCmd} = options;
	const timedOut = options.timedOut || false;

if (!err) {
		let output = '';

if (Array.isArray(parsed.opts.stdio)) {
			if (parsed.opts.stdio[2] !== 'inherit') {
				output += output.length > 0 ? stderr : `\n${stderr}`;
			}

if (parsed.opts.stdio[1] !== 'inherit') {
				output += `\n${stdout}`;
			}
		} else if (parsed.opts.stdio !== 'inherit') {
			output = `\n${stderr}${stdout}`;
		}

err = new Error(`Command failed: ${joinedCmd}${output}`);
		err.code = code < 0 ? errname(code) : code;
	}

err.stdout = stdout;
	err.stderr = stderr;
	err.failed = true;
	err.signal = signal || null;
	err.cmd = joinedCmd;
	err.timedOut = timedOut;

return err;
}

function joinCmd(cmd, args) {
	let joinedCmd = cmd;

if (Array.isArray(args) && args.length > 0) {
		joinedCmd += ' ' + args.join(' ');
	}

return joinedCmd;
}

module.exports = (cmd, args, opts) => {
	const parsed = handleArgs(cmd, args, opts);
	const {encoding, buffer, maxBuffer} = parsed.opts;
	const joinedCmd = joinCmd(cmd, args);

let spawned;
	try {
		spawned = childProcess.spawn(parsed.cmd, parsed.args, parsed.opts);
	} catch (err) {
		return Promise.reject(err);
	}

let removeExitHandler;
	if (parsed.opts.cleanup) {
		removeExitHandler = onExit(() => {
			spawned.kill();
		});
	}

let timeoutId = null;
	let timedOut = false;

const cleanup = () => {
		if (timeoutId) {
			clearTimeout(timeoutId);
			timeoutId = null;
		}

if (removeExitHandler) {
			removeExitHandler();
		}
	};

if (parsed.opts.timeout > 0) {
		timeoutId = setTimeout(() => {
			timeoutId = null;
			timedOut = true;
			spawned.kill(parsed.opts.killSignal);
		}, parsed.opts.timeout);
	}

const processDone = new Promise(resolve => {
		spawned.on('exit', (code, signal) => {
			cleanup();
			resolve({code, signal});
		});

spawned.on('error', err => {
			cleanup();
			resolve({error: err});
		});

if (spawned.stdin) {
			spawned.stdin.on('error', err => {
				cleanup();
				resolve({error: err});
			});
		}
	});

function destroy() {
		if (spawned.stdout) {
			spawned.stdout.destroy();
		}

if (spawned.stderr) {
			spawned.stderr.destroy();
		}
	}

const handlePromise = () => pFinally(Promise.all([
		processDone,
		getStream(spawned, 'stdout', {encoding, buffer, maxBuffer}),
		getStream(spawned, 'stderr', {encoding, buffer, maxBuffer})
	]).then(arr => {
		const result = arr[0];
		result.stdout = arr[1];
		result.stderr = arr[2];

if (result.error || result.code !== 0 || result.signal !== null) {
			const err = makeError(result, {
				joinedCmd,
				parsed,
				timedOut
			});

// TODO: missing some timeout logic for killed
			// https://github.com/nodejs/node/blob/master/lib/child_process.js#L203
			// err.killed = spawned.killed || killed;
			err.killed = err.killed || spawned.killed;

if (!parsed.opts.reject) {
				return err;
			}

throw err;
		}

return {
			stdout: handleOutput(parsed.opts, result.stdout),
			stderr: handleOutput(parsed.opts, result.stderr),
			code: 0,
			failed: false,
			killed: false,
			signal: null,
			cmd: joinedCmd,
			timedOut: false
		};
	}), destroy);

crossSpawn._enoent.hookChildProcess(spawned, parsed.parsed);

handleInput(spawned, parsed.opts.input);

spawned.then = (onfulfilled, onrejected) => handlePromise().then(onfulfilled, onrejected);
	spawned.catch = onrejected => handlePromise().catch(onrejected);

return spawned;
};

// TODO: set `stderr: 'ignore'` when that option is implemented
module.exports.stdout = (...args) => module.exports(...args).then(x => x.stdout);

// TODO: set `stdout: 'ignore'` when that option is implemented
module.exports.stderr = (...args) => module.exports(...args).then(x => x.stderr);

module.exports.shell = (cmd, opts) => handleShell(module.exports, cmd, opts);

module.exports.sync = (cmd, args, opts) => {
	const parsed = handleArgs(cmd, args, opts);
	const joinedCmd = joinCmd(cmd, args);

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

const result = childProcess.spawnSync(parsed.cmd, parsed.args, parsed.opts);
	result.code = result.status;

if (result.error || result.status !== 0 || result.signal !== null) {
		const err = makeError(result, {
			joinedCmd,
			parsed
		});

if (!parsed.opts.reject) {
			return err;
		}

throw err;
	}

return {
		stdout: handleOutput(parsed.opts, result.stdout),
		stderr: handleOutput(parsed.opts, result.stderr),
		code: 0,
		failed: false,
		signal: null,
		cmd: joinedCmd,
		timedOut: false
	};
};

module.exports.shellSync = (cmd, opts) => handleShell(module.exports.sync, cmd, opts);