fix the missing fields in all edit commands

pkg/commands/kustfile/kustomizationfile.go

@@ -153,6 +153,10 @@ func (mf *kustomizationFile) Read() (*types.Kustomization, error) {
 		return nil, err
 	}
 	k.DealWithDeprecatedFields()
+	msgs := k.DealWithMissingFields()
+	if len(msgs) > 0 {
+		log.Printf(strings.Join(msgs, "\n"))
+	}
 	err = mf.parseCommentedFields(data)
 	if err != nil {
 		return nil, err

pkg/commands/kustfile/kustomizationfile_test.go

@@ -78,6 +78,7 @@ func TestWriteAndRead(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Couldn't read kustomization file: %v\n", err)
 	}
+	kustomization.DealWithMissingFields()
 	if !reflect.DeepEqual(kustomization, content) {
 		t.Fatal("Read kustomization is different from written kustomization")
 	}
@@ -172,6 +173,8 @@ func TestPreserveComments(t *testing.T) {
 		`# shem qing some comments
 # This is some comment we should preserve
 # don't delete it
+apiVersion: v1
+kind: Kustomization
 resources:
 - pod.yaml
 - service.yaml

pkg/types/kustomization.go

@@ -160,7 +160,7 @@ func (k *Kustomization) DealWithMissingFields() []string {
 	}
 	if k.Kind == "" {
 		k.Kind = KustomizationKind
-		msgs = append(msgs, "Fixed the missing field by adding apiKind: "+KustomizationKind)
+		msgs = append(msgs, "Fixed the missing field by adding kind: "+KustomizationKind)
 	}
 	return msgs
 }