Make new nesting place for generated builtin code.

api/internal/accumulator/loadconfigfromcrds.go

@@ -10,8 +10,8 @@ import (
 	"github.com/go-openapi/spec"
 	"github.com/pkg/errors"
 	"k8s.io/kube-openapi/pkg/common"
-	"sigs.k8s.io/kustomize/v3/api/builtinconfig"
 	"sigs.k8s.io/kustomize/v3/api/ifc"
+	"sigs.k8s.io/kustomize/v3/api/plugins/builtinconfig"
 	"sigs.k8s.io/kustomize/v3/api/resid"
 	"sigs.k8s.io/kustomize/v3/api/types"
 	"sigs.k8s.io/yaml"

api/internal/accumulator/loadconfigfromcrds_test.go

@@ -7,10 +7,10 @@ import (
 	"reflect"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/api/builtinconfig"
 	"sigs.k8s.io/kustomize/v3/api/ifc"
 	. "sigs.k8s.io/kustomize/v3/api/internal/accumulator"
 	"sigs.k8s.io/kustomize/v3/api/internal/loadertest"
+	"sigs.k8s.io/kustomize/v3/api/plugins/builtinconfig"
 	"sigs.k8s.io/kustomize/v3/api/resid"
 	"sigs.k8s.io/kustomize/v3/api/types"
 )

api/internal/accumulator/namereferencetransformer.go

@@ -7,7 +7,7 @@ import (
 	"fmt"
 	"log"
 
-	"sigs.k8s.io/kustomize/v3/api/builtinconfig"
+	"sigs.k8s.io/kustomize/v3/api/plugins/builtinconfig"
 	"sigs.k8s.io/kustomize/v3/api/resid"
 	"sigs.k8s.io/kustomize/v3/api/resmap"
 	"sigs.k8s.io/kustomize/v3/api/resource"

api/internal/accumulator/namereferencetransformer_test.go

@@ -7,8 +7,8 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/api/builtinconfig"
 	"sigs.k8s.io/kustomize/v3/api/k8sdeps/kunstruct"
+	"sigs.k8s.io/kustomize/v3/api/plugins/builtinconfig"
 	"sigs.k8s.io/kustomize/v3/api/resid"
 	"sigs.k8s.io/kustomize/v3/api/resmap"
 	"sigs.k8s.io/kustomize/v3/api/resource"

api/internal/accumulator/resaccumulator.go

@@ -8,7 +8,7 @@ import (
 	"log"
 	"strings"
 
-	"sigs.k8s.io/kustomize/v3/api/builtinconfig"
+	"sigs.k8s.io/kustomize/v3/api/plugins/builtinconfig"
 	"sigs.k8s.io/kustomize/v3/api/resid"
 	"sigs.k8s.io/kustomize/v3/api/resmap"
 	"sigs.k8s.io/kustomize/v3/api/types"

api/internal/accumulator/resaccumulator_test.go

@@ -10,9 +10,9 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/api/builtinconfig"
 	. "sigs.k8s.io/kustomize/v3/api/internal/accumulator"
 	"sigs.k8s.io/kustomize/v3/api/k8sdeps/kunstruct"
+	"sigs.k8s.io/kustomize/v3/api/plugins/builtinconfig"
 	"sigs.k8s.io/kustomize/v3/api/resid"
 	"sigs.k8s.io/kustomize/v3/api/resmap"
 	"sigs.k8s.io/kustomize/v3/api/resource"

api/plugins/builtinconfig/transformerconfig.go

@@ -7,8 +7,8 @@ import (
 	"log"
 	"sort"
 
-	"sigs.k8s.io/kustomize/v3/api/builtinconfig/consts"
 	"sigs.k8s.io/kustomize/v3/api/ifc"
+	"sigs.k8s.io/kustomize/v3/api/plugins/builtinconfig/consts"
 	"sigs.k8s.io/kustomize/v3/api/types"
 )
 

api/plugins/builtinconfig/transformerconfig_test.go

@@ -7,7 +7,7 @@ import (
 	"reflect"
 	"testing"
 
-	. "sigs.k8s.io/kustomize/v3/api/builtinconfig"
+	. "sigs.k8s.io/kustomize/v3/api/plugins/builtinconfig"
 	"sigs.k8s.io/kustomize/v3/api/resid"
 	"sigs.k8s.io/kustomize/v3/api/types"
 )

api/plugins/builtinhelpers/builtinplugintype_string.go

@@ -0,0 +1,37 @@
+// Code generated by "stringer -type=BuiltinPluginType"; DO NOT EDIT.
+
+package builtinhelpers
+
+import "strconv"
+
+func _() {
+	// An "invalid array index" compiler error signifies that the constant values have changed.
+	// Re-run the stringer command to generate them again.
+	var x [1]struct{}
+	_ = x[Unknown-0]
+	_ = x[AnnotationsTransformer-1]
+	_ = x[ConfigMapGenerator-2]
+	_ = x[HashTransformer-3]
+	_ = x[ImageTagTransformer-4]
+	_ = x[InventoryTransformer-5]
+	_ = x[LabelTransformer-6]
+	_ = x[LegacyOrderTransformer-7]
+	_ = x[NamespaceTransformer-8]
+	_ = x[PatchJson6902Transformer-9]
+	_ = x[PatchStrategicMergeTransformer-10]
+	_ = x[PatchTransformer-11]
+	_ = x[PrefixSuffixTransformer-12]
+	_ = x[ReplicaCountTransformer-13]
+	_ = x[SecretGenerator-14]
+}
+
+const _BuiltinPluginType_name = "UnknownAnnotationsTransformerConfigMapGeneratorHashTransformerImageTagTransformerInventoryTransformerLabelTransformerLegacyOrderTransformerNamespaceTransformerPatchJson6902TransformerPatchStrategicMergeTransformerPatchTransformerPrefixSuffixTransformerReplicaCountTransformerSecretGenerator"
+
+var _BuiltinPluginType_index = [...]uint16{0, 7, 29, 47, 62, 81, 101, 117, 139, 159, 183, 213, 229, 252, 275, 290}
+
+func (i BuiltinPluginType) String() string {
+	if i < 0 || i >= BuiltinPluginType(len(_BuiltinPluginType_index)-1) {
+		return "BuiltinPluginType(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+	return _BuiltinPluginType_name[_BuiltinPluginType_index[i]:_BuiltinPluginType_index[i+1]]
+}

api/plugins/builtinhelpers/builtins.go

@@ -1,7 +1,7 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-package builtins
+package builtinhelpers
 
 import (
 	"sigs.k8s.io/kustomize/v3/api/resmap"
@@ -13,20 +13,20 @@ type BuiltinPluginType int
 
 const (
 	Unknown BuiltinPluginType = iota
-	SecretGenerator
+	AnnotationsTransformer
 	ConfigMapGenerator
-	ReplicaCountTransformer
+	HashTransformer
+	ImageTagTransformer
+	InventoryTransformer
+	LabelTransformer
+	LegacyOrderTransformer
 	NamespaceTransformer
 	PatchJson6902Transformer
 	PatchStrategicMergeTransformer
 	PatchTransformer
-	LabelTransformer
-	AnnotationsTransformer
 	PrefixSuffixTransformer
-	ImageTagTransformer
-	HashTransformer
-	InventoryTransformer
-	LegacyOrderTransformer
+	ReplicaCountTransformer
+	SecretGenerator
 )
 
 var stringToBuiltinPluginTypeMap map[string]BuiltinPluginType
@@ -55,21 +55,21 @@ func GetBuiltinPluginType(n string) BuiltinPluginType {
 }
 
 var GeneratorFactories = map[BuiltinPluginType]func() resmap.GeneratorPlugin{
-	SecretGenerator:    builtin.NewSecretGeneratorPlugin,
 	ConfigMapGenerator: builtin.NewConfigMapGeneratorPlugin,
+	SecretGenerator:    builtin.NewSecretGeneratorPlugin,
 }
 
 var TransformerFactories = map[BuiltinPluginType]func() resmap.TransformerPlugin{
+	AnnotationsTransformer:         builtin.NewAnnotationsTransformerPlugin,
+	HashTransformer:                builtin.NewHashTransformerPlugin,
+	ImageTagTransformer:            builtin.NewImageTagTransformerPlugin,
+	InventoryTransformer:           builtin.NewInventoryTransformerPlugin,
+	LabelTransformer:               builtin.NewLabelTransformerPlugin,
+	LegacyOrderTransformer:         builtin.NewLegacyOrderTransformerPlugin,
 	NamespaceTransformer:           builtin.NewNamespaceTransformerPlugin,
-	ReplicaCountTransformer:        builtin.NewReplicaCountTransformerPlugin,
 	PatchJson6902Transformer:       builtin.NewPatchJson6902TransformerPlugin,
 	PatchStrategicMergeTransformer: builtin.NewPatchStrategicMergeTransformerPlugin,
 	PatchTransformer:               builtin.NewPatchTransformerPlugin,
-	LabelTransformer:               builtin.NewLabelTransformerPlugin,
-	AnnotationsTransformer:         builtin.NewAnnotationsTransformerPlugin,
 	PrefixSuffixTransformer:        builtin.NewPrefixSuffixTransformerPlugin,
-	ImageTagTransformer:            builtin.NewImageTagTransformerPlugin,
-	HashTransformer:                builtin.NewHashTransformerPlugin,
-	InventoryTransformer:           builtin.NewInventoryTransformerPlugin,
-	LegacyOrderTransformer:         builtin.NewLegacyOrderTransformerPlugin,
+	ReplicaCountTransformer:        builtin.NewReplicaCountTransformerPlugin,
 }

api/plugins/builtins/builtinplugintype_string.go

@@ -1,37 +0,0 @@
-// Code generated by "stringer -type=BuiltinPluginType"; DO NOT EDIT.
-
-package builtins
-
-import "strconv"
-
-func _() {
-	// An "invalid array index" compiler error signifies that the constant values have changed.
-	// Re-run the stringer command to generate them again.
-	var x [1]struct{}
-	_ = x[Unknown-0]
-	_ = x[SecretGenerator-1]
-	_ = x[ConfigMapGenerator-2]
-	_ = x[ReplicaCountTransformer-3]
-	_ = x[NamespaceTransformer-4]
-	_ = x[PatchJson6902Transformer-5]
-	_ = x[PatchStrategicMergeTransformer-6]
-	_ = x[PatchTransformer-7]
-	_ = x[LabelTransformer-8]
-	_ = x[AnnotationsTransformer-9]
-	_ = x[PrefixSuffixTransformer-10]
-	_ = x[ImageTagTransformer-11]
-	_ = x[HashTransformer-12]
-	_ = x[InventoryTransformer-13]
-	_ = x[LegacyOrderTransformer-14]
-}
-
-const _BuiltinPluginType_name = "UnknownSecretGeneratorConfigMapGeneratorReplicaCountTransformerNamespaceTransformerPatchJson6902TransformerPatchStrategicMergeTransformerPatchTransformerLabelTransformerAnnotationsTransformerPrefixSuffixTransformerImageTagTransformerHashTransformerInventoryTransformerLegacyOrderTransformer"
-
-var _BuiltinPluginType_index = [...]uint16{0, 7, 22, 40, 63, 83, 107, 137, 153, 169, 191, 214, 233, 248, 268, 290}
-
-func (i BuiltinPluginType) String() string {
-	if i < 0 || i >= BuiltinPluginType(len(_BuiltinPluginType_index)-1) {
-		return "BuiltinPluginType(" + strconv.FormatInt(int64(i), 10) + ")"
-	}
-	return _BuiltinPluginType_name[_BuiltinPluginType_index[i]:_BuiltinPluginType_index[i+1]]
-}

api/plugins/builtins/doc.go

@@ -0,0 +1,8 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+// Package builtins holds code generated from the builting plugins.
+// The "builtin" plugins are written as normal plugins and can
+// be used as such, but they are also used to generate the code
+// in this package so they can be statically linked to client code.
+package builtins

api/plugins/config/config.go

@@ -1,6 +1,8 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
+// Package config provides configuration methods and constants
+// for general plugins.
 package config
 
 import (

api/plugins/loader/loader.go

@@ -12,7 +12,7 @@ import (
 
 	"github.com/pkg/errors"
 	"sigs.k8s.io/kustomize/v3/api/ifc"
-	"sigs.k8s.io/kustomize/v3/api/plugins/builtins"
+	"sigs.k8s.io/kustomize/v3/api/plugins/builtinhelpers"
 	"sigs.k8s.io/kustomize/v3/api/plugins/config"
 	"sigs.k8s.io/kustomize/v3/api/plugins/execplugin"
 	"sigs.k8s.io/kustomize/v3/api/resid"
@@ -134,11 +134,11 @@ func (l *Loader) loadAndConfigurePlugin(
 }
 
 func (l *Loader) makeBuiltinPlugin(r resid.Gvk) (resmap.Configurable, error) {
-	bpt := builtins.GetBuiltinPluginType(r.Kind)
-	if f, ok := builtins.GeneratorFactories[bpt]; ok {
+	bpt := builtinhelpers.GetBuiltinPluginType(r.Kind)
+	if f, ok := builtinhelpers.GeneratorFactories[bpt]; ok {
 		return f(), nil
 	}
-	if f, ok := builtins.TransformerFactories[bpt]; ok {
+	if f, ok := builtinhelpers.TransformerFactories[bpt]; ok {
 		return f(), nil
 	}
 	return nil, errors.Errorf("unable to load builtin %s", r)

api/target/kusttarget.go

@@ -13,11 +13,11 @@ import (
 	"strings"
 
 	"github.com/pkg/errors"
-	"sigs.k8s.io/kustomize/v3/api/builtinconfig"
 	"sigs.k8s.io/kustomize/v3/api/ifc"
 	"sigs.k8s.io/kustomize/v3/api/internal/accumulator"
 	"sigs.k8s.io/kustomize/v3/api/pgmconfig"
-	"sigs.k8s.io/kustomize/v3/api/plugins/builtins"
+	"sigs.k8s.io/kustomize/v3/api/plugins/builtinconfig"
+	"sigs.k8s.io/kustomize/v3/api/plugins/builtinhelpers"
 	"sigs.k8s.io/kustomize/v3/api/plugins/loader"
 	"sigs.k8s.io/kustomize/v3/api/resmap"
 	"sigs.k8s.io/kustomize/v3/api/transform"
@@ -165,7 +165,7 @@ func (kt *KustTarget) makeCustomizedResMap(
 func (kt *KustTarget) addHashesToNames(
 	ra *accumulator.ResAccumulator) error {
 	p := builtin.NewHashTransformerPlugin()
-	err := kt.configureBuiltinPlugin(p, nil, builtins.HashTransformer)
+	err := kt.configureBuiltinPlugin(p, nil, builtinhelpers.HashTransformer)
 	if err != nil {
 		return err
 	}
@@ -194,7 +194,7 @@ func (kt *KustTarget) computeInventory(
 	c.Namespace = inv.ConfigMap.Namespace
 	c.Policy = garbagePolicy.String()
 	p := builtin.NewInventoryTransformerPlugin()
-	err := kt.configureBuiltinPlugin(p, c, builtins.InventoryTransformer)
+	err := kt.configureBuiltinPlugin(p, c, builtinhelpers.InventoryTransformer)
 	if err != nil {
 		return err
 	}
@@ -372,7 +372,7 @@ func (kt *KustTarget) accumulateFile(
 }
 
 func (kt *KustTarget) configureBuiltinPlugin(
-	p resmap.Configurable, c interface{}, bpt builtins.BuiltinPluginType) (err error) {
+	p resmap.Configurable, c interface{}, bpt builtinhelpers.BuiltinPluginType) (err error) {
 	var y []byte
 	if c != nil {
 		y, err = yaml.Marshal(c)

api/target/kusttarget_configplugin.go

@@ -4,8 +4,8 @@
 package target
 
 import (
-	"sigs.k8s.io/kustomize/v3/api/builtinconfig"
-	"sigs.k8s.io/kustomize/v3/api/plugins/builtins"
+	"sigs.k8s.io/kustomize/v3/api/plugins/builtinconfig"
+	"sigs.k8s.io/kustomize/v3/api/plugins/builtinhelpers"
 	"sigs.k8s.io/kustomize/v3/api/resmap"
 	"sigs.k8s.io/kustomize/v3/api/types"
 )
@@ -27,12 +27,12 @@ import (
 
 func (kt *KustTarget) configureBuiltinGenerators() (
 	result []resmap.Generator, err error) {
-	for _, bpt := range []builtins.BuiltinPluginType{
-		builtins.ConfigMapGenerator,
-		builtins.SecretGenerator,
+	for _, bpt := range []builtinhelpers.BuiltinPluginType{
+		builtinhelpers.ConfigMapGenerator,
+		builtinhelpers.SecretGenerator,
 	} {
 		r, err := generatorConfigurators[bpt](
-			kt, bpt, builtins.GeneratorFactories[bpt])
+			kt, bpt, builtinhelpers.GeneratorFactories[bpt])
 		if err != nil {
 			return nil, err
 		}
@@ -44,19 +44,19 @@ func (kt *KustTarget) configureBuiltinGenerators() (
 func (kt *KustTarget) configureBuiltinTransformers(
 	tc *builtinconfig.TransformerConfig) (
 	result []resmap.Transformer, err error) {
-	for _, bpt := range []builtins.BuiltinPluginType{
-		builtins.PatchStrategicMergeTransformer,
-		builtins.PatchTransformer,
-		builtins.NamespaceTransformer,
-		builtins.PrefixSuffixTransformer,
-		builtins.LabelTransformer,
-		builtins.AnnotationsTransformer,
-		builtins.PatchJson6902Transformer,
-		builtins.ReplicaCountTransformer,
-		builtins.ImageTagTransformer,
+	for _, bpt := range []builtinhelpers.BuiltinPluginType{
+		builtinhelpers.PatchStrategicMergeTransformer,
+		builtinhelpers.PatchTransformer,
+		builtinhelpers.NamespaceTransformer,
+		builtinhelpers.PrefixSuffixTransformer,
+		builtinhelpers.LabelTransformer,
+		builtinhelpers.AnnotationsTransformer,
+		builtinhelpers.PatchJson6902Transformer,
+		builtinhelpers.ReplicaCountTransformer,
+		builtinhelpers.ImageTagTransformer,
 	} {
 		r, err := transformerConfigurators[bpt](
-			kt, bpt, builtins.TransformerFactories[bpt], tc)
+			kt, bpt, builtinhelpers.TransformerFactories[bpt], tc)
 		if err != nil {
 			return nil, err
 		}
@@ -67,11 +67,11 @@ func (kt *KustTarget) configureBuiltinTransformers(
 
 type gFactory func() resmap.GeneratorPlugin
 
-var generatorConfigurators = map[builtins.BuiltinPluginType]func(
+var generatorConfigurators = map[builtinhelpers.BuiltinPluginType]func(
 	kt *KustTarget,
-	bpt builtins.BuiltinPluginType,
+	bpt builtinhelpers.BuiltinPluginType,
 	factory gFactory) (result []resmap.Generator, err error){
-	builtins.SecretGenerator: func(kt *KustTarget, bpt builtins.BuiltinPluginType, f gFactory) (
+	builtinhelpers.SecretGenerator: func(kt *KustTarget, bpt builtinhelpers.BuiltinPluginType, f gFactory) (
 		result []resmap.Generator, err error) {
 		var c struct {
 			types.GeneratorOptions
@@ -92,7 +92,7 @@ var generatorConfigurators = map[builtins.BuiltinPluginType]func(
 		return
 	},
 
-	builtins.ConfigMapGenerator: func(kt *KustTarget, bpt builtins.BuiltinPluginType, f gFactory) (
+	builtinhelpers.ConfigMapGenerator: func(kt *KustTarget, bpt builtinhelpers.BuiltinPluginType, f gFactory) (
 		result []resmap.Generator, err error) {
 		var c struct {
 			types.GeneratorOptions
@@ -116,13 +116,13 @@ var generatorConfigurators = map[builtins.BuiltinPluginType]func(
 
 type tFactory func() resmap.TransformerPlugin
 
-var transformerConfigurators = map[builtins.BuiltinPluginType]func(
+var transformerConfigurators = map[builtinhelpers.BuiltinPluginType]func(
 	kt *KustTarget,
-	bpt builtins.BuiltinPluginType,
+	bpt builtinhelpers.BuiltinPluginType,
 	f tFactory,
 	tc *builtinconfig.TransformerConfig) (result []resmap.Transformer, err error){
-	builtins.NamespaceTransformer: func(
-		kt *KustTarget, bpt builtins.BuiltinPluginType, f tFactory, tc *builtinconfig.TransformerConfig) (
+	builtinhelpers.NamespaceTransformer: func(
+		kt *KustTarget, bpt builtinhelpers.BuiltinPluginType, f tFactory, tc *builtinconfig.TransformerConfig) (
 		result []resmap.Transformer, err error) {
 		var c struct {
 			types.ObjectMeta `json:"metadata,omitempty" yaml:"metadata,omitempty"`
@@ -139,8 +139,8 @@ var transformerConfigurators = map[builtins.BuiltinPluginType]func(
 		return
 	},
 
-	builtins.PatchJson6902Transformer: func(
-		kt *KustTarget, bpt builtins.BuiltinPluginType, f tFactory, _ *builtinconfig.TransformerConfig) (
+	builtinhelpers.PatchJson6902Transformer: func(
+		kt *KustTarget, bpt builtinhelpers.BuiltinPluginType, f tFactory, _ *builtinconfig.TransformerConfig) (
 		result []resmap.Transformer, err error) {
 		var c struct {
 			Target types.PatchTarget `json:"target,omitempty" yaml:"target,omitempty"`
@@ -160,8 +160,8 @@ var transformerConfigurators = map[builtins.BuiltinPluginType]func(
 		}
 		return
 	},
-	builtins.PatchStrategicMergeTransformer: func(
-		kt *KustTarget, bpt builtins.BuiltinPluginType, f tFactory, _ *builtinconfig.TransformerConfig) (
+	builtinhelpers.PatchStrategicMergeTransformer: func(
+		kt *KustTarget, bpt builtinhelpers.BuiltinPluginType, f tFactory, _ *builtinconfig.TransformerConfig) (
 		result []resmap.Transformer, err error) {
 		if len(kt.kustomization.PatchesStrategicMerge) == 0 {
 			return
@@ -179,8 +179,8 @@ var transformerConfigurators = map[builtins.BuiltinPluginType]func(
 		result = append(result, p)
 		return
 	},
-	builtins.PatchTransformer: func(
-		kt *KustTarget, bpt builtins.BuiltinPluginType, f tFactory, _ *builtinconfig.TransformerConfig) (
+	builtinhelpers.PatchTransformer: func(
+		kt *KustTarget, bpt builtinhelpers.BuiltinPluginType, f tFactory, _ *builtinconfig.TransformerConfig) (
 		result []resmap.Transformer, err error) {
 		if len(kt.kustomization.Patches) == 0 {
 			return
@@ -203,8 +203,8 @@ var transformerConfigurators = map[builtins.BuiltinPluginType]func(
 		}
 		return
 	},
-	builtins.LabelTransformer: func(
-		kt *KustTarget, bpt builtins.BuiltinPluginType, f tFactory, tc *builtinconfig.TransformerConfig) (
+	builtinhelpers.LabelTransformer: func(
+		kt *KustTarget, bpt builtinhelpers.BuiltinPluginType, f tFactory, tc *builtinconfig.TransformerConfig) (
 		result []resmap.Transformer, err error) {
 		var c struct {
 			Labels     map[string]string
@@ -220,8 +220,8 @@ var transformerConfigurators = map[builtins.BuiltinPluginType]func(
 		result = append(result, p)
 		return
 	},
-	builtins.AnnotationsTransformer: func(
-		kt *KustTarget, bpt builtins.BuiltinPluginType, f tFactory, tc *builtinconfig.TransformerConfig) (
+	builtinhelpers.AnnotationsTransformer: func(
+		kt *KustTarget, bpt builtinhelpers.BuiltinPluginType, f tFactory, tc *builtinconfig.TransformerConfig) (
 		result []resmap.Transformer, err error) {
 		var c struct {
 			Annotations map[string]string
@@ -237,8 +237,8 @@ var transformerConfigurators = map[builtins.BuiltinPluginType]func(
 		result = append(result, p)
 		return
 	},
-	builtins.PrefixSuffixTransformer: func(
-		kt *KustTarget, bpt builtins.BuiltinPluginType, f tFactory, tc *builtinconfig.TransformerConfig) (
+	builtinhelpers.PrefixSuffixTransformer: func(
+		kt *KustTarget, bpt builtinhelpers.BuiltinPluginType, f tFactory, tc *builtinconfig.TransformerConfig) (
 		result []resmap.Transformer, err error) {
 		var c struct {
 			Prefix     string
@@ -256,8 +256,8 @@ var transformerConfigurators = map[builtins.BuiltinPluginType]func(
 		result = append(result, p)
 		return
 	},
-	builtins.ImageTagTransformer: func(
-		kt *KustTarget, bpt builtins.BuiltinPluginType, f tFactory, tc *builtinconfig.TransformerConfig) (
+	builtinhelpers.ImageTagTransformer: func(
+		kt *KustTarget, bpt builtinhelpers.BuiltinPluginType, f tFactory, tc *builtinconfig.TransformerConfig) (
 		result []resmap.Transformer, err error) {
 		var c struct {
 			ImageTag   types.Image
@@ -275,8 +275,8 @@ var transformerConfigurators = map[builtins.BuiltinPluginType]func(
 		}
 		return
 	},
-	builtins.ReplicaCountTransformer: func(
-		kt *KustTarget, bpt builtins.BuiltinPluginType, f tFactory, tc *builtinconfig.TransformerConfig) (
+	builtinhelpers.ReplicaCountTransformer: func(
+		kt *KustTarget, bpt builtinhelpers.BuiltinPluginType, f tFactory, tc *builtinconfig.TransformerConfig) (
 		result []resmap.Transformer, err error) {
 		var c struct {
 			Replica    types.Replica

api/testutils/kusttest/kusttestharness.go

@@ -9,12 +9,12 @@ import (
 	"strings"
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/api/builtinconfig/consts"
 	"sigs.k8s.io/kustomize/v3/api/internal/loadertest"
 	"sigs.k8s.io/kustomize/v3/api/k8sdeps/kunstruct"
 	"sigs.k8s.io/kustomize/v3/api/k8sdeps/transformer"
 	fLdr "sigs.k8s.io/kustomize/v3/api/loader"
 	"sigs.k8s.io/kustomize/v3/api/pgmconfig"
+	"sigs.k8s.io/kustomize/v3/api/plugins/builtinconfig/consts"
 	"sigs.k8s.io/kustomize/v3/api/plugins/config"
 	pLdr "sigs.k8s.io/kustomize/v3/api/plugins/loader"
 	"sigs.k8s.io/kustomize/v3/api/resmap"

api/transform/maptransformer_test.go

@@ -6,8 +6,8 @@ package transform_test
 import (
 	"testing"
 
-	"sigs.k8s.io/kustomize/v3/api/builtinconfig"
 	"sigs.k8s.io/kustomize/v3/api/k8sdeps/kunstruct"
+	"sigs.k8s.io/kustomize/v3/api/plugins/builtinconfig"
 	"sigs.k8s.io/kustomize/v3/api/resource"
 	"sigs.k8s.io/kustomize/v3/api/testutils/resmaptest"
 	. "sigs.k8s.io/kustomize/v3/api/transform"

docs/plugins/builtins.md

@@ -36,7 +36,7 @@ complete plugin argument specification.
 [types.GeneratorOptions]: ../../api/types/generatoroptions.go
 [types.SecretArgs]: ../../api/types/secretargs.go
 [types.ConfigMapArgs]: ../../api/types/configmapargs.go
-[config.FieldSpec]: ../../api/builtinconfig/fieldspec.go
+[config.FieldSpec]: ../../api/plugins/builtinconfig/fieldspec.go
 [types.ObjectMeta]: ../../api/types/objectmeta.go
 [types.Selector]: ../../api/types/selector.go
 [types.Replica]: ../../api/types/replica.go

examples/configureBuiltinPlugin.md

@@ -4,7 +4,7 @@
 [plugin]: ../docs/plugins
 [fields]: ../docs/fields.md
 [fields in a kustomization file]: ../docs/fields.md
-[TransformerConfig]: ../api/builtinconfig/transformerconfig.go
+[TransformerConfig]: ../api/plugins/builtinconfig/transformerconfig.go
 [kustomization]: ../docs/glossary.md#kustomization
 
 # Customizing kustomize

kustomize/internal/commands/config/config.go

@@ -9,8 +9,8 @@ import (
 
 	"github.com/spf13/cobra"
 
-	"sigs.k8s.io/kustomize/v3/api/builtinconfig/consts"
 	"sigs.k8s.io/kustomize/v3/api/filesys"
+	"sigs.k8s.io/kustomize/v3/api/plugins/builtinconfig/consts"
 )
 
 // NewCmdConfig returns an instance of 'config' subcommand.