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DefaultStrategy.php
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DefaultStrategy.php
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<?php
namespace Spatie\Backup\Tasks\Cleanup\Strategies;
use Carbon\Carbon;
use Illuminate\Support\Collection;
use Spatie\Backup\Tasks\Cleanup\Period;
use Spatie\Backup\BackupDestination\Backup;
use Spatie\Backup\Tasks\Cleanup\CleanupStrategy;
use Spatie\Backup\BackupDestination\BackupCollection;
class DefaultStrategy extends CleanupStrategy
{
/** @var \Spatie\Backup\BackupDestination\Backup */
protected $newestBackup;
/**
* @param \Spatie\Backup\BackupDestination\BackupCollection $backups
*/
public function deleteOldBackups(BackupCollection $backups)
{
// Don't ever delete the newest backup.
$this->newestBackup = $backups->shift();
$dateRanges = $this->calculateDateRanges();
$backupsPerPeriod = $dateRanges->map(function (Period $period) use ($backups) {
return $backups->filter(function (Backup $backup) use ($period) {
return $backup->date()->between($period->getStartDate(), $period->getEndDate());
});
});
$backupsPerPeriod['daily'] = $this->groupByDateFormat($backupsPerPeriod['daily'], 'Ymd');
$backupsPerPeriod['weekly'] = $this->groupByDateFormat($backupsPerPeriod['weekly'], 'YW');
$backupsPerPeriod['monthly'] = $this->groupByDateFormat($backupsPerPeriod['monthly'], 'Ym');
$backupsPerPeriod['yearly'] = $this->groupByDateFormat($backupsPerPeriod['yearly'], 'Y');
$this->removeBackupsForAllPeriodsExceptOne($backupsPerPeriod);
$this->removeBackupsOlderThan($dateRanges['yearly']->getEndDate(), $backups);
$this->removeOldestsBackupsUntilUsingMaximumStorage($backups);
}
/**
* @return \Illuminate\Support\Collection
*/
protected function calculateDateRanges()
{
$config = $this->config->get('laravel-backup.cleanup.defaultStrategy');
$daily = new Period(
Carbon::now()->subDays($config['keepAllBackupsForDays']),
Carbon::now()
->subDays($config['keepAllBackupsForDays'])
->subDays($config['keepDailyBackupsForDays'])
);
$weekly = new Period(
$daily->getEndDate(),
$daily->getEndDate()
->subWeeks($config['keepWeeklyBackupsForWeeks'])
);
$monthly = new Period(
$weekly->getEndDate(),
$weekly->getEndDate()
->subMonths($config['keepMonthlyBackupsForMonths'])
);
$yearly = new Period(
$monthly->getEndDate(),
$monthly->getEndDate()
->subYears($config['keepYearlyBackupsForYears'])
);
return collect(compact('daily', 'weekly', 'monthly', 'yearly'));
}
/**
* @param \Illuminate\Support\Collection $backups
* @param string $dateFormat
*
* @return \Illuminate\Support\Collection
*/
protected function groupByDateFormat(Collection $backups, $dateFormat)
{
return $backups->groupBy(function (Backup $backup) use ($dateFormat) {
return $backup->date()->format($dateFormat);
});
}
/**
* @param \Illuminate\Support\Collection $backupsPerPeriod
*/
protected function removeBackupsForAllPeriodsExceptOne($backupsPerPeriod)
{
foreach ($backupsPerPeriod as $periodName => $groupedBackupsByDateProperty) {
$groupedBackupsByDateProperty->each(function (Collection $group) {
$group->shift();
$group->each(function (Backup $backup) {
$backup->delete();
});
});
}
}
/**
* @param \Carbon\Carbon $endDate
* @param \Spatie\Backup\BackupDestination\BackupCollection $backups
*/
protected function removeBackupsOlderThan(Carbon $endDate, BackupCollection $backups)
{
$backups->filter(function (Backup $backup) use ($endDate) {
return $backup->exists() && $backup->date()->lt($endDate);
})->each(function (Backup $backup) {
$backup->delete();
});
}
/**
* @param \Spatie\Backup\BackupDestination\BackupCollection $backups
*/
protected function removeOldestsBackupsUntilUsingMaximumStorage(BackupCollection $backups)
{
$maximumSize = $this->config->get('laravel-backup.cleanup.defaultStrategy.deleteOldestBackupsWhenUsingMoreMegabytesThan')
* 1024 * 1024;
if (! $oldestBackup = $backups->oldest()) {
return;
}
if (($backups->size() + $this->newestBackup->size()) <= $maximumSize) {
return;
}
$oldestBackup->delete();
$this->removeOldestsBackupsUntilUsingMaximumStorage($backups);
}
}