public function commit($site_env, $options = ['message' => 'Terminus commit.'])
{
list(, $env) = $this->getSiteEnv($site_env, 'dev');
$change_count = count((array) $env->diffstat());
if ($change_count === 0) {
$this->log()->warning("There is no code to commit.");
return;
}
$workflow = $env->commitChanges($options['message']);
$workflow->wait();
return $workflow->getMessage();
}