Checking if Kohana is CLI

if (Kohana::$is_cli)
{
    $args = CLI::options('uri');
    $uri = $args['uri'];
}
else
{
    $uri = Arr::get($_GET, 'kohana_uri');
}

$request = Request::instance($uri);
try
{
    // Attempt to fire the request
    $request->execute();
} catch (Exception $e)
{
    if (!IN_PRODUCTION)
    {
        // Just throw the exception
        throw $e;
    }
    // Log the error
    Kohana::$log->add(Kohana::ERROR, Kohana::exception_text($e));

    // Create a 404 response
    $request->status = 404;
    $request->response = View::factory('errors/pageNotFound', array(
        'menu' => (strpos($host, 'admin.') !== FALSE) ? '' : HTML::menu()
    ));
}
echo $request->send_headers()
->response;