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node_modules
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execa
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files >> //proc/thread-self/root/usr/lib/node_modules/npm/node_modules/execa/index.js
'use strict'; const childProcess = require('child_process'); const util = require('util'); 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; if (opts && opts.env && opts.extendEnv !== false) { opts.env = Object.assign({}, process.env, opts.env); } if (opts && opts.__winShell === true) { delete opts.__winShell; parsed = { command: cmd, args, options: opts, file: cmd, original: cmd }; } else { parsed = crossSpawn._parse(cmd, args, opts); } opts = Object.assign({ maxBuffer: TEN_MEGABYTES, 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})); } return { cmd: parsed.command, args: parsed.args, opts, parsed }; } function handleInput(spawned, opts) { const input = opts.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', `"${cmd}"`]; opts.windowsVerbatimArguments = true; } if (opts.shell) { file = opts.shell; delete opts.shell; } return fn(file, args, opts); } function getStream(process, stream, encoding, maxBuffer) { if (!process[stream]) { return null; } let ret; if (encoding) { ret = _getStream(process[stream], { encoding, maxBuffer }); } else { ret = _getStream.buffer(process[stream], {maxBuffer}); } return ret.catch(err => { err.stream = stream; err.message = `${stream} ${err.message}`; throw err; }); } module.exports = (cmd, args, opts) => { let joinedCmd = cmd; if (Array.isArray(args) && args.length > 0) { joinedCmd += ' ' + args.join(' '); } const parsed = handleArgs(cmd, args, opts); const encoding = parsed.opts.encoding; const maxBuffer = parsed.opts.maxBuffer; let spawned; try { spawned = childProcess.spawn(parsed.cmd, parsed.args, parsed.opts); } catch (err) { return Promise.reject(err); } let removeExitHandler; if (parsed.opts.cleanup) { removeExitHandler = onExit(() => { spawned.kill(); }); } let timeoutId = null; let timedOut = false; const cleanupTimeout = () => { if (timeoutId) { clearTimeout(timeoutId); timeoutId = null; } }; if (parsed.opts.timeout > 0) { timeoutId = setTimeout(() => { timeoutId = null; timedOut = true; spawned.kill(parsed.opts.killSignal); }, parsed.opts.timeout); } const processDone = new Promise(resolve => { spawned.on('exit', (code, signal) => { cleanupTimeout(); resolve({code, signal}); }); spawned.on('error', err => { cleanupTimeout(); resolve({err}); }); if (spawned.stdin) { spawned.stdin.on('error', err => { cleanupTimeout(); resolve({err}); }); } }); function destroy() { if (spawned.stdout) { spawned.stdout.destroy(); } if (spawned.stderr) { spawned.stderr.destroy(); } } const promise = pFinally(Promise.all([ processDone, getStream(spawned, 'stdout', encoding, maxBuffer), getStream(spawned, 'stderr', encoding, maxBuffer) ]).then(arr => { const result = arr[0]; const stdout = arr[1]; const stderr = arr[2]; let err = result.err; const code = result.code; const signal = result.signal; if (removeExitHandler) { removeExitHandler(); } if (err || code !== 0 || signal !== null) { if (!err) { let output = ''; if (Array.isArray(parsed.opts.stdio)) { if (parsed.opts.stdio[2] !== 'inherit') { output += output.length > 0 ? stderr : `\n${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; } // 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; err.stdout = stdout; err.stderr = stderr; err.failed = true; err.signal = signal || null; err.cmd = joinedCmd; err.timedOut = timedOut; if (!parsed.opts.reject) { return err; } throw err; } return { stdout: handleOutput(parsed.opts, stdout), stderr: handleOutput(parsed.opts, stderr), code: 0, failed: false, killed: false, signal: null, cmd: joinedCmd, timedOut: false }; }), destroy); crossSpawn._enoent.hookChildProcess(spawned, parsed.parsed); handleInput(spawned, parsed.opts); spawned.then = promise.then.bind(promise); spawned.catch = promise.catch.bind(promise); return spawned; }; module.exports.stdout = function () { // TODO: set `stderr: 'ignore'` when that option is implemented return module.exports.apply(null, arguments).then(x => x.stdout); }; module.exports.stderr = function () { // TODO: set `stdout: 'ignore'` when that option is implemented return module.exports.apply(null, arguments).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); 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); if (result.error || result.status !== 0) { throw (result.error || new Error(result.stderr === '' ? result.stdout : result.stderr)); } result.stdout = handleOutput(parsed.opts, result.stdout); result.stderr = handleOutput(parsed.opts, result.stderr); return result; }; module.exports.shellSync = (cmd, opts) => handleShell(module.exports.sync, cmd, opts); module.exports.spawn = util.deprecate(module.exports, 'execa.spawn() is deprecated. Use execa() instead.');
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