chown -R www-data:www-data .
sudo -u www-data sh -c "git pull"
sudo -u www-data sh -c "cd engine/migrations/ && php _migrate.php"
sudo -u www-data sh -c "cd www/assets/ && php static_optimization.php"
sudo -u www-data sh -c "cd www/admin/assets/ && php static_optimization.php"