public function run_install()
{
ob_start();
$input = new ArgvInput(array());
$output = new ConsoleOutput();
$helper = new HelperSet();
$config = new Config();
$output->setVerbosity(0);
$io = new ConsoleIO($input, $output, $helper);
$composer = Factory::create($io);
$composer->setConfig($config);
$update = new InstallCommand();
$update->setComposer($composer);
$out = $update->run($input, $output);
ob_end_clean();
return $out;
}