fix(PROJ-30): cmd import-piler — Manticore-Backend support

cmd/archivmail/cmd_import_piler.go

@@ -82,12 +82,28 @@ func runImportPiler(args []string) {
 	if backend == "" {
 		backend = "xapian"
 	}
-	idx, err := index.New(cfg.Index.Path, batchSize, backend)
+	var idxMgr index.TenantIndexer
+	if backend == "manticore" {
+		dsn := cfg.Index.ManticoreDSN
+		if dsn == "" {
+			dsn = "manticore@tcp(127.0.0.1:9306)/"
+		}
+		m, err := index.NewManticoreTenantManager(dsn)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "error: manticore init: %v\n", err)
+			os.Exit(1)
+		}
+		idxMgr = m
+	} else {
+		m, err := index.NewTenantIndexManager(cfg.Index.Path, batchSize, backend)
 		if err != nil {
 			fmt.Fprintf(os.Stderr, "error: index init: %v\n", err)
 			os.Exit(1)
 		}
-	defer idx.Close()
+		idxMgr = m
+	}
+	defer idxMgr.Close()
+	idx := idxMgr
 
 	// Resolve method
 	resolvedMethod := *method
@@ -158,7 +174,7 @@ func runImportPiler(args []string) {
 
 // ── pilerexport method ────────────────────────────────────────────────────
 
-func runPilerexportMethod(mailStore *storage.Store, idx index.Indexer, binPath, exportDir, dateFrom, dateTo string, dryRun, jsonOut bool) (imported, skipped, errors int) {
+func runPilerexportMethod(mailStore *storage.Store, idx index.TenantIndexer, binPath, exportDir, dateFrom, dateTo string, dryRun, jsonOut bool) (imported, skipped, errors int) {
 	bin := resolvePilerexport(binPath)
 	if bin == "" {
 		fmt.Fprintln(os.Stderr, "error: pilerexport binary not found")
@@ -249,7 +265,7 @@ func runPilerexportMethod(mailStore *storage.Store, idx index.Indexer, binPath,
 
 // ── direct method ─────────────────────────────────────────────────────────
 
-func runDirectMethod(mailStore *storage.Store, idx index.Indexer, storeDir, keyFilePath string, dryRun, jsonOut bool) (imported, skipped, errors int) {
+func runDirectMethod(mailStore *storage.Store, idx index.TenantIndexer, storeDir, keyFilePath string, dryRun, jsonOut bool) (imported, skipped, errors int) {
 	if _, err := os.Stat(storeDir); os.IsNotExist(err) {
 		fmt.Fprintf(os.Stderr, "error: store dir not found: %s\n", storeDir)
 		os.Exit(1)