nextcloud/lib/private/Log/Rotate.php

<?php
/**
 * @copyright Copyright (c) 2016, ownCloud, Inc.
 *
 * @author Arthur Schiwon <blizzz@arthur-schiwon.de>
 * @author Bart Visscher <bartv@thisnet.nl>
 * @author Christoph Wurst <christoph@winzerhof-wurst.at>
 * @author Robin Appelman <robin@icewind.nl>
 *
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License, version 3,
 * along with this program. If not, see <http://www.gnu.org/licenses/>
 *
 */
namespace OC\Log;

use OCP\IConfig;
use OCP\Log\RotationTrait;
use Psr\Log\LoggerInterface;

/**
 * This rotates the current logfile to a new name, this way the total log usage
 * will stay limited and older entries are available for a while longer.
 * For more professional log management set the 'logfile' config to a different
 * location and manage that with your own tools.
 */
class Rotate extends \OCP\BackgroundJob\Job {
	use RotationTrait;

	public function run($argument): void {
		$config = \OCP\Server::get(IConfig::class);
		$this->filePath = $config->getSystemValueString('logfile', $config->getSystemValueString('datadirectory', \OC::$SERVERROOT . '/data') . '/nextcloud.log');

		$this->maxSize = $config->getSystemValueInt('log_rotate_size', 100 * 1024 * 1024);
		if ($this->shouldRotateBySize()) {
			$rotatedFile = $this->rotate();
			$msg = 'Log file "'.$this->filePath.'" was over '.$this->maxSize.' bytes, moved to "'.$rotatedFile.'"';
			\OCP\Server::get(LoggerInterface::class)->info($msg, ['app' => Rotate::class]);
		}
	}
}