Drush Deploy with a make file

deploy.drushrc.php

$options['before']['deploy-symlink'][] = 'run_rebuild_task';

/**
 * Run rebuild.sh.
 * @task
 */
function run_rebuild_task($d) {
  $d->run('cd %s/app && ./rebuild.sh', $d->release_path);
  $d->run('ln -s %s/settings.php %s/sites/default/settings.php', $d->shared_path, $d->latest_release());
  $d->run('ln -s %s/files %s/sites/default/files', $d->shared_path, $d->latest_release());
}