more stuff

internal/kubeedit/groups.go

@@ -129,3 +129,12 @@ func (e *Editor) SyncGroups(ctx context.Context, desired []config.Group, foreign
 	}
 	return res, nil
 }
+
+// CheckGroupName reports why name cannot be a ClientGroup's object name, so a
+// validation endpoint can say it before a save does.
+func CheckGroupName(name string) error {
+	if name == "" {
+		return fmt.Errorf("a group needs a name")
+	}
+	return checkName("group", name)
+}