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<?php |
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/* |
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* This file is part of the Backup package, an RunOpenCode project. |
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* |
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* (c) 2015 RunOpenCode |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* This project is fork of "kbond/php-backup", for full credits info, please |
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* view CREDITS file that was distributed with this source code. |
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*/ |
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namespace RunOpenCode\Backup\Rotator; |
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use RunOpenCode\Backup\Contract\BackupInterface; |
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use RunOpenCode\Backup\Contract\RotatorInterface; |
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use RunOpenCode\Backup\Utils\Filesize; |
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/** |
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* Class MinCountMaxSizeRotator |
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* |
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* Rotator that nominates old backups when total backup size exceed maximum allowed backup size, but it will keep minimum |
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* required number of backups. |
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* |
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* @package RunOpenCode\Backup\Rotator |
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*/ |
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final class MinCountMaxSizeRotator implements RotatorInterface |
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{ |
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/** |
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* @var integer |
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*/ |
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private $maxSize; |
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/** |
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* @var integer |
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*/ |
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private $minCount; |
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public function __construct($minCount, $maxSize) |
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{ |
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if ($minCount < 1) { |
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throw new \InvalidArgumentException('At least one file should be set as minimum backup count.'); |
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} |
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$this->minCount = $minCount; |
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$this->maxSize = Filesize::getBytes($maxSize); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function nominate(array $backups) |
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{ |
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$list = array(); |
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$currentSize = 0; |
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/** |
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* @var BackupInterface $backup |
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*/ |
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foreach ($backups as $backup) { |
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$list[$backup->getCreatedAt()->getTimestamp()] = $backup; |
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$currentSize += $backup->getSize(); |
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} |
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if ($currentSize > $this->maxSize) { |
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ksort($list); |
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$nominations = array(); |
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/** |
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* @var BackupInterface $backup |
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*/ |
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foreach ($list as $backup) { |
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if (count($list) - count($nominations) <= $this->minCount) { |
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break; |
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} |
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$nominations[] = $backup; |
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$currentSize -= $backup->getSize(); |
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if ($currentSize <= $this->maxSize) { |
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break; |
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} |
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} |
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return $nominations; |
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} else { |
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return array(); |
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} |
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} |
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} |
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RunOpenCode /
backup
