'use strict'; var childProcess = require('child_process'); var findVersions = require('find-versions'); module.exports = function (bin, cb) { childProcess.exec(bin + ' --version', function (err, stdout, stderr) { if (err) { if (err.code === 'ENOENT') { err.message = 'Couldn\'t find the `' + bin + '` binary. Make sure it\'s installed and in your $PATH'; } return cb(err); } cb(null, findVersions(stdout.trim() || stderr.trim(), {loose: true})[0]); }); };