/**
* Cleanup your backup directory.
*
* @see \phpbu\App\Backup\Cleanup::cleanup()
* @param \phpbu\App\Backup\Target $target
* @param \phpbu\App\Backup\Collector $collector
* @param \phpbu\App\Result $result
* @throws \phpbu\App\Backup\Cleaner\Exception
*/
public function cleanup(Target $target, Collector $collector, Result $result)
{
$files = $collector->getBackupFiles();
$size = $target->getSize();
/** @var \phpbu\App\Backup\File $file */
foreach ($files as $file) {
$size += $file->getSize();
}
// backups exceed capacity?
if ($size > $this->capacityBytes) {
// oldest backups first
ksort($files);
while ($size > $this->capacityBytes && count($files) > 0) {
$file = array_shift($files);
$size -= $file->getSize();
if (!$file->isWritable()) {
throw new Exception(sprintf('can\'t delete file: %s', $file->getPathname()));
}
$result->debug(sprintf('delete %s', $file->getPathname()));
$file->unlink();
}
// deleted all old backups but still exceeding the space limit
// delete the currently created backup as well
if ($this->deleteTarget && $size > $this->capacityBytes) {
$target->unlink();
}
}
}
