/**
* Execute a command.
* @function task.worker.execCommand
* @param {object} config - Task configuration
* @param {string} config.command - Command.
* @param {string} config.cwd - Working directory name.
* @param {function} callback - Callback when done.
*/
var debug = require('./_debug'),
childProcess = require('child_process'),
exec = childProcess.exec;
module.exports = function (config, callback) {
var command = config.command;
exec(command, {
cwd: config.cwd,
env: process.env
}, function (err, stdOut, stdErr) {
if (stdOut && !config.silent) console.log(stdOut);
debug.didExecute(command);
callback(err || stdErr || null);
});
};