func validateNoOverwrites(accessor meta.Object, labels map[string]string) error { allErrs := []error{} for key := range labels { if value, found := accessor.GetLabels()[key]; found { allErrs = append(allErrs, fmt.Errorf("'%s' already has a value (%s), and --overwrite is false", key, value)) } } return utilerrors.NewAggregate(allErrs) }