nextcloud-server/lib/private/Log/Rotate.php

<?php

/**
 * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
 * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
 * SPDX-License-Identifier: AGPL-3.0-only
 */
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]);
		}
	}
}