install-nix-action/node_modules/exec-sh/lib/exec-sh.js
Domen Kožar 70742d22d9
v6
2019-11-19 17:50:30 +01:00

101 lines
2.2 KiB
JavaScript

var cp = require('child_process')
var defSpawnOptions = { stdio: 'inherit' }
/**
* @summary Get shell program meta for current platform
* @private
* @returns {Object}
*/
function getShell () {
if (process.platform === 'win32') {
return { cmd: 'cmd', arg: '/C' }
} else {
return { cmd: 'sh', arg: '-c' }
}
}
/**
* Callback is called with the output when the process terminates. Output is
* available when true is passed as options argument or stdio: null set
* within given options.
*
* @summary Execute shell command forwarding all stdio
* @param {String|Array} command
* @param {Object|TRUE} [options] spawn() options or TRUE to set stdio: null
* @param {Function} [callback]
* @returns {ChildProcess}
*/
function execSh (command, options, callback) {
if (Array.isArray(command)) {
command = command.join(';')
}
if (options === true) {
options = { stdio: null }
}
if (typeof options === 'function') {
callback = options
options = defSpawnOptions
} else {
options = options || {}
options = Object.assign({}, defSpawnOptions, options)
callback = callback || function () {}
}
var child
var stdout = ''
var stderr = ''
var shell = getShell()
try {
child = cp.spawn(shell.cmd, [shell.arg, command], options)
} catch (e) {
callback(e, stdout, stderr)
return
}
if (child.stdout) {
child.stdout.on('data', function (data) {
stdout += data
})
}
if (child.stderr) {
child.stderr.on('data', function (data) {
stderr += data
})
}
child.on('close', function (code) {
if (code) {
var e = new Error('Shell command exit with non zero code: ' + code)
e.code = code
callback(e, stdout, stderr)
} else {
callback(null, stdout, stderr)
}
})
return child
}
execSh.promise = function (command, options) {
return new Promise(function (resolve, reject) {
execSh(command, options, function (err, stdout, stderr) {
if (err) {
err.stdout = stdout
err.stderr = stderr
return reject(err)
}
resolve({
stderr: stderr,
stdout: stdout
})
})
})
}
module.exports = execSh