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A function that spawns a new process using the given command, logging the stdout and stderr.
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| const cp = require('child_process') | |
| /** | |
| * A function that spawns a new process using the given command, logging the stdout and stderr. | |
| * | |
| * @param {String} command | |
| * @param {Array} args | |
| * @return {Promise} | |
| * @example | |
| * | |
| * sh('ping', ['-c', '3', '8.8.8.8']) | |
| * .then(console.log) | |
| * .catch(console.error) | |
| */ | |
| function sh (command, args = []) { | |
| const logString = msg => console.log(`${msg}`) | |
| const childProcess = cp.spawn(command, args) | |
| const formattedArgs = args.length ? ` ${args.join(' ')}` : '' | |
| const params = `$ ${command}${formattedArgs}` | |
| logString(params) | |
| return new Promise((resolve, reject) => { | |
| childProcess.stdout.on('data', logString) | |
| childProcess.stderr.on('data', logString) | |
| childProcess.on('error', reject) | |
| childProcess.on('exit', (code, signal) => { | |
| const message = `Child process exited with code ${code}` | |
| if (code !== 0) { | |
| return reject(new Error(message)) | |
| } | |
| return resolve({ code, signal }) | |
| }) | |
| }) | |
| } | |
| module.exports = sh |
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