CronCommand.php

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<?php

namespace Elgg\Cli;

use Symfony\Component\Console\Input\InputOption;

class CronCommand extends Command {

    protected function configure() {
        $this->setName('cron')
            ->setDescription('Execute cron handlers for all or specified interval')
            ->addOption('interval', 'i', InputOption::VALUE_OPTIONAL,
                'Name of the interval (e.g. hourly)'
            )
            ->addOption('force', 'f', InputOption::VALUE_NONE,
                'Force cron commands to run even if they are not yet due'
            )
            ->addOption('time', 't', InputOption::VALUE_OPTIONAL,
                'Time of the cron initialization'
            );
    }

    protected function command() {

        $intervals = null;
        $interval = $this->option('interval');
        if ($interval) {
            $intervals = [strtolower($interval)];
        }

        $time = $this->option('time');
        if (!$time) {
            $time = 'now';
        }

        $time = new \DateTime($time);

        _elgg_services()->cron->setCurrentTime($time);
        $jobs = _elgg_services()->cron->run($intervals, $this->option('force'));

        if (!$this->option('quiet')) {
            foreach ($jobs as $job) {
                $this->write($job->getOutput());
            }
        }

        return 0;
    }
}