/**
* Runs an external process.
*
* @param OutputInterface $output An OutputInterface instance
* @param string|array|Process $cmd An instance of Process or an array of arguments to escape and run or a command to run
* @param string|null $error An error message that must be displayed if something went wrong
* @param callable|null $callback A PHP callback to run whenever there is some
* output available on STDOUT or STDERR
* @param int $verbosity The threshold for verbosity
*
* @return Process The process that ran
*/
public function run(OutputInterface $output, $cmd, $error = null, $callback = null, $verbosity = OutputInterface::VERBOSITY_VERY_VERBOSE)
{
$formatter = $this->getHelperSet()->get('debug_formatter');
if (is_array($cmd)) {
$process = ProcessBuilder::create($cmd)->getProcess();
} elseif ($cmd instanceof Process) {
$process = $cmd;
} else {
$process = new Process($cmd);
}
if ($verbosity <= $output->getVerbosity()) {
$output->write($formatter->start(spl_object_hash($process), $this->escapeString($process->getCommandLine())));
}
if ($output->isDebug()) {
$callback = $this->wrapCallback($output, $process, $callback);
}
$process->run($callback);
if ($verbosity <= $output->getVerbosity()) {
$message = $process->isSuccessful() ? 'Command ran successfully' : sprintf('%s Command did not run successfully', $process->getExitCode());
$output->write($formatter->stop(spl_object_hash($process), $message, $process->isSuccessful()));
}
if (!$process->isSuccessful() && null !== $error) {
$output->writeln(sprintf('<error>%s</error>', $this->escapeString($error)));
}
return $process;
}
