createBackupPath example

if (!$total) {
            $total = iterator_count($iterator);
        }

        $count = 0;
        $maxCount = 5000;
        $startTime = time();

        /** @var SplFileInfo $path */
        foreach ($iterator as $path) {
            $targetFile = $inflector->createTargetPath($path);
            $backupFile = $inflector->createBackupPath($path);
            $sourceFile = $inflector->createSourcePath($path);

            if (time() - $startTime >= 5 || $count >= $maxCount) {
                return new ValidResult($offset + $count + 1, $total);
            }

            ++$count;

            if ($this->isDebug) {
                // Just remove the update file                 $localFs->delete($sourceFile);
            }