Files
nextcloud-ng_backup/lib/Command/Retention.php
T
dillard 7b3c9cabf6 M5: retention policy, prune with repacking, append-only locations
- RetentionPolicy (last/daily/weekly/monthly) and PruneService: forget
  snapshots the policy drops, delete packs nothing uses and repack mostly
  unused ones by copying encrypted blobs as-is; new packs are indexed
  before old ones are removed
- a location lock keeps prune and backups apart; append-only locations
  are never pruned (cleanup via the location's lifecycle rules)
- weekly prune from the background job; occ backup:prune [--dry-run],
  backup:retention, backup:target:append-only
- tests: forget+prune frees space and the remaining snapshot restores
  identically, repack of mixed packs, dry-run preview, retention buckets
2026-10-02 02:21:48 +02:00

55 lines
1.9 KiB
PHP

<?php
declare(strict_types=1);
// SPDX-FileCopyrightText: 2026 Dillard Blom
// SPDX-License-Identifier: AGPL-3.0-or-later
namespace OCA\NgBackup\Command;
use OCA\NgBackup\Service\PruneService;
use OCA\NgBackup\Service\RetentionPolicy;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
class Retention extends Command {
public function __construct(
private PruneService $prune,
) {
parent::__construct();
}
protected function configure(): void {
$this->setName('backup:retention')
->setDescription('Show or set how many snapshots are kept')
->addOption('last', null, InputOption::VALUE_REQUIRED, 'Always keep the newest N')
->addOption('daily', null, InputOption::VALUE_REQUIRED, 'Keep one per day for the last N days with a backup')
->addOption('weekly', null, InputOption::VALUE_REQUIRED, 'Keep one per week for N weeks')
->addOption('monthly', null, InputOption::VALUE_REQUIRED, 'Keep one per month for N months')
->setHelp("Example: occ backup:retention --last=3 --daily=7 --weekly=4 --monthly=12");
}
protected function execute(InputInterface $input, OutputInterface $output): int {
$p = $this->prune->policy()->toArray();
$changed = false;
foreach (['last', 'daily', 'weekly', 'monthly'] as $k) {
if ($input->getOption($k) !== null) {
$p[$k] = max(0, (int)$input->getOption($k));
$changed = true;
}
}
if ($changed) {
try {
$this->prune->setPolicy(RetentionPolicy::fromArray($p));
} catch (\InvalidArgumentException $e) {
$output->writeln('<error>' . $e->getMessage() . '</error>');
return 1;
}
}
$output->writeln(sprintf('Keep the last %d, plus one per day for %d days, per week for %d weeks, per month for %d months.', $p['last'], $p['daily'], $p['weekly'], $p['monthly']));
return 0;
}
}