setName('backup:prune')
->setDescription('Apply the retention policy: remove old snapshots and the data only they used')
->addArgument('target', InputArgument::OPTIONAL, 'Location name or id (default: all that are not append-only)')
->addOption('dry-run', null, InputOption::VALUE_NONE, 'Only show what would be removed');
}
protected function execute(InputInterface $input, OutputInterface $output): int {
$name = $input->getArgument('target');
$targets = $name === null ? array_filter($this->targets->list(), fn ($t) => !$t->getAppendOnly()) : [$this->targets->get($name)];
$dry = (bool)$input->getOption('dry-run');
$output->writeln('Policy: ' . json_encode($this->prune->policy()->toArray()) . ($dry ? ' (dry run)' : ''));
$rc = 0;
foreach ($targets as $t) {
// User exports first: Repository::prune()'s blob garbage collection (run as part of
// apply() below) scans the users/ manifests still on the location at that point, so
// forgetting one here lets its now-unused blobs be freed in this same pass.
try {
$ru = $this->prune->applyUserExports($t, $dry);
} catch (\Throwable $e) {
$output->writeln('' . $t->getName() . ' (user exports): ' . $e->getMessage() . '');
$rc = 1;
continue;
}
if ($ru['forgotten'] !== []) {
$affected = count(array_unique(array_map(static fn (string $path): string => explode('/', $path)[1] ?? '', $ru['forgotten'])));
$output->writeln(sprintf('%s: %s %d user export(s) for %d user(s)',
$t->getName(), $dry ? 'would forget' : 'forgot', count($ru['forgotten']), $affected));
}
try {
$r = $this->prune->apply($t, $dry);
} catch (\Throwable $e) {
$output->writeln('' . $t->getName() . ': ' . $e->getMessage() . '');
$rc = 1;
continue;
}
$p = $r['prune'];
$output->writeln(sprintf('%s: keep %d, %s %d snapshots; packs: %d, %s %d, repack %d, frees %.1f MiB',
$t->getName(), count($r['kept']), $dry ? 'would forget' : 'forgot', count($r['forgotten']), $p['packs'],
$dry ? 'would delete' : 'deleted', $p['deleted'], $p['repacked'], $p['freedBytes'] / 1048576));
}
return $rc;
}
}