public function exec($command, $callback = null)
{
if (false === $this->isConnected()) {
$this->connectAndLogin();
}
// $this->sftp->enablePTY();
$success = $this->sftp->exec($command, $callback);
// $data = $this->sftp->read();
// if (is_callable($callback)) {
// $callback($data);
// }
if (false === $success) {
throw new \RuntimeException('Something went wrong: ' . "\n" . implode("\n", (array) $this->sftp->getErrors()));
}
$status = $this->sftp->getExitStatus();
if ($status === false) {
$status = -1;
}
return $status;
}
