feat(dump): locate mysqldump/mariadb-dump binary

src/Service/DumpBinaryLocator.php

@@ -0,0 +1,45 @@
+<?php declare(strict_types=1);
+
+namespace AeonDumpManager\Service;
+
+use AeonDumpManager\Service\Exception\DumpBinaryNotFoundException;
+use Doctrine\DBAL\Connection;
+use Shopware\Core\System\SystemConfig\SystemConfigService;
+use Symfony\Component\Process\ExecutableFinder;
+
+/**
+ * Picks mariadb-dump/mysqldump depending on what the configured DB connection
+ * actually is, mirroring Doctrine DBAL's own stripos($version, 'mariadb')
+ * version-string check (no shared platform base class to rely on instead).
+ */
+class DumpBinaryLocator
+{
+    public function __construct(
+        private readonly Connection $connection,
+        private readonly SystemConfigService $systemConfigService,
+        private readonly ExecutableFinder $executableFinder,
+    ) {
+    }
+
+    public function locate(): string
+    {
+        $configuredName = $this->systemConfigService->getString('AeonDumpManager.config.dumpBinaryName');
+        $binaryNames = $configuredName !== ''
+            ? [$configuredName]
+            : ($this->isMariaDb() ? ['mariadb-dump', 'mysqldump'] : ['mysqldump']);
+
+        foreach ($binaryNames as $binaryName) {
+            $path = $this->executableFinder->find($binaryName);
+            if ($path !== null) {
+                return $path;
+            }
+        }
+
+        throw DumpBinaryNotFoundException::create($binaryNames);
+    }
+
+    private function isMariaDb(): bool
+    {
+        return MySqlVariant::isMariaDb($this->connection->getServerVersion());
+    }
+}