Add discard flags during format (#424)

pkg/lib/lock.go

@@ -206,11 +206,19 @@ func formatLuks(device, name, mapper, label, pass string, logger zerolog.Logger)
 	if err != nil {
 		return fmt.Errorf("mkfs err: %w, out: %s", err, out)
 	}
+
+	l.Debug().Msg("discards")
+	out, err = SH(fmt.Sprintf("cryptsetup refresh --persistent --allow-discards %s", mapper))
+	if err != nil {
+		return fmt.Errorf("refresh err: %w, out: %s", err, out)
+	}
+
 	l.Debug().Msg("close")
 	out, err = SH(fmt.Sprintf("cryptsetup close %s", mapper))
 	if err != nil {
 		return fmt.Errorf("lock err: %w, out: %s", err, out)
 	}
+
 	return nil
 }
 

pkg/lib/unlock.go

@@ -130,7 +130,6 @@ func LuksUnlock(device, mapper, password string) error {
 		return err
 	}
 	defer dev.Close()
-
 	err = dev.Unlock(0, []byte(password), mapper)
 	if err != nil {
 		return err