update vendor

Signed-off-by: Roland.Ma <rolandma@yunify.com>

vendor/sigs.k8s.io/kustomize/api/internal/validate/fieldvalidator.go

@@ -0,0 +1,68 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package validate
+
+import (
+	"sigs.k8s.io/kustomize/api/ifc"
+)
+
+// FieldValidator implements ifc.Validator to check
+// the values of various KRM string fields,
+// e.g. labels, annotations, names, namespaces.
+//
+// TODO: Have this use kyaml/yaml/internal/k8sgen/pkg/labels
+//  which has label and annotation validation code, but is internal
+//  so this impl would need to move to kyaml (a fine idea).
+type FieldValidator struct {
+}
+
+var _ ifc.Validator = (*FieldValidator)(nil)
+
+func NewFieldValidator() *FieldValidator {
+	return &FieldValidator{}
+}
+
+// TODO(#FieldValidator): implement MakeAnnotationValidator
+func (f FieldValidator) MakeAnnotationValidator() func(map[string]string) error {
+	return func(x map[string]string) error {
+		return nil
+	}
+}
+
+// TODO(#FieldValidator): implement MakeAnnotationNameValidator
+func (f FieldValidator) MakeAnnotationNameValidator() func([]string) error {
+	return func(x []string) error {
+		return nil
+	}
+}
+
+// TODO(#FieldValidator): implement MakeLabelValidator
+func (f FieldValidator) MakeLabelValidator() func(map[string]string) error {
+	return func(x map[string]string) error {
+		return nil
+	}
+}
+
+// TODO(#FieldValidator): implement MakeLabelNameValidator
+func (f FieldValidator) MakeLabelNameValidator() func([]string) error {
+	return func(x []string) error {
+		return nil
+	}
+}
+
+// TODO(#FieldValidator): implement ValidateNamespace
+func (f FieldValidator) ValidateNamespace(s string) []string {
+	var errs []string
+	return errs
+}
+
+// TODO(#FieldValidator): implement ErrIfInvalidKey
+func (f FieldValidator) ErrIfInvalidKey(s string) error {
+	return nil
+}
+
+// TODO(#FieldValidator): implement IsEnvVarName
+func (f FieldValidator) IsEnvVarName(k string) error {
+	return nil
+}