autoinstallers/install/secu/make/node_modules/cmd-promise/cmd-promise.js

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2022-05-31 19:28:17 -04:00
const exec = require('child_process').exec
/**
* does the given object have the given property
* @param {object} obj object to check.
* @param {string} prop property to check for.
* @return Boolean
*/
function hasProp (obj, prop) {
return obj.hasOwnProperty(prop)
}
/**
* is this a string please sir?
* @param {string} str string (or is it?) to check.
* @return Boolean
*/
function isString (str) {
return (typeof str === 'string' || str instanceof String)
}
/**
* wrapper for child_process.exec()
* @param {string} command command line command to run.
* @param {object} options cmd-promise options.
* @param {object} execOptions exec() options object as outlined in the node docs.
* @return Promise
*/
function runCommand (command, options, execOptions) {
// defaults
if (!options) { options = {} }
if (!execOptions) { execOptions = {} }
// resolve to the child process?
const returnProcess = hasProp(options, 'returnProcess') ? options.returnProcess : false
return new Promise((resolve, reject) => {
if (returnProcess) {
// resolve to the child process, don't wait for the output
resolve(exec(command, execOptions))
} else {
// resolve to the output, using the callback
exec(command, execOptions, (error, stdout, stderr) => {
if (error) { return reject(error) }
resolve({ stdout, stderr })
})
}
})
}
/**
* run one or many commands
* @param {string} commands command line command(s) string to run.
* @param {object} options options object as outlined in the node docs.
* @return Promise
*/
function cmdPromise (commands, options, execOptions) {
// make sure the command is a string
if (!isString(commands)) {
return Promise.reject(new Error('Command not a string.'))
}
// do we have multiple lines?
if (commands.indexOf('\n') > -1) {
// split by new lines
const arrSplit = commands.split(/\n/g)
// remove empty array elements
const arrFiltered = arrSplit.filter(ele => ele.length)
// trim each array element
const arrTrimmed = arrFiltered.map(ele => ele.trim())
// array of command promises
const arrOut = arrTrimmed.map(command => {
return runCommand(command, options, execOptions)
})
// multiple lines, return an array of outs
return Promise.all(arrOut)
} else {
// one line, run it
return runCommand(commands, options, execOptions)
}
}
module.exports = cmdPromise