protected function configure()
{
$this->setName('build')->setDescription('Builds static html files from markdown source')->setDefinition(array(new InputOption('web-dir', null, InputOption::VALUE_REQUIRED, 'Where to write generated content.', getcwd() . '/web'), new InputOption('all', null, InputOption::VALUE_NONE, 'Build all document, even if they are not published yet.')));
}