dillard
50acd5dc0e
Opening a repository lists index/ once and downloads only index files that are not cached; packs written by this server are cached on write, stale cache rows are dropped. Each resumable step therefore no longer downloads every index file from the location.
55 lines
2.0 KiB
PHP
55 lines
2.0 KiB
PHP
<?php
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declare(strict_types=1);
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namespace OCA\NgBackup\Tests\Unit\Repository;
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use OCA\NgBackup\Backend\LocalBackend;
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use OCA\NgBackup\Crypto\KeyRing;
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use OCA\NgBackup\Repository\IIndexCache;
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use OCA\NgBackup\Repository\Repository;
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use OCA\NgBackup\Tests\Unit\TempDirTrait;
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use PHPUnit\Framework\TestCase;
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class IndexCacheTest extends TestCase {
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use TempDirTrait;
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public function testSecondOpenDownloadsNoIndexFiles(): void {
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$cache = new class implements IIndexCache {
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public array $data = [];
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public function all(string $r): array { return $this->data[$r] ?? []; }
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public function put(string $r, string $p, array $e): void { $this->data[$r][$p] = $e; }
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public function remove(string $r, array $ps): void { foreach ($ps as $p) { unset($this->data[$r][$p]); } }
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};
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$src = $this->tempDir();
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for ($i = 0; $i < 12; $i++) {
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file_put_contents("$src/f$i", random_bytes(3 * 1048576));
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}
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$backend = new LocalBackend($this->tempDir());
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$keys = KeyRing::generate();
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Repository::initWithKey($backend, $keys, $keys->wrap('pw'));
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$repo = Repository::openWithKey($backend, $keys, $cache);
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$r1 = $repo->backupDirectory($src);
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$this->assertGreaterThan(0, count($backend->list('index')));
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$again = Repository::openWithKey($backend, $keys, $cache);
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$this->assertSame(0, $again->indexDownloads(), 'everything came from the cache');
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file_put_contents("$src/new", random_bytes(2 * 1048576));
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$again->backupDirectory($src, $r1['snapshot']);
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$third = Repository::openWithKey($backend, $keys, $cache);
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$this->assertSame(0, $third->indexDownloads(), 'packs written by this server are cached on write');
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// A cache that misses entries (e.g. another server wrote packs) fetches only those.
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$repoId = array_key_first($cache->data);
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array_pop($cache->data[$repoId]);
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$fourth = Repository::openWithKey($backend, $keys, $cache);
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$this->assertSame(1, $fourth->indexDownloads());
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$target = $this->tempDir();
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$fourth->restore($r1['snapshot'], $target);
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$this->assertCount(12, self::hashTree($target));
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}
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}
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