wrapper/select/version: fix panic

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
2020-04-20 02:47:52 +03:00 · 2020-04-20 02:47:52 +03:00 · d24e1d19e4
commit d24e1d19e4
parent 7dc172a825
1 changed files with 5 additions and 0 deletions
--- a/version.go
+++ b/version.go
@ -29,6 +29,11 @@ func (w *latestVersionWrapper) Call(ctx context.Context, req client.Request, rsp

 func filterLatestVersion() selector.Filter {
 	return func(svcsOld []*registry.Service) []*registry.Service {
+
+		if len(svcsOld) <= 1 {
+			return svcsOld
+		}
+
 		var svcsNew []*registry.Service
 		versions := make([]string, len(svcsOld))