One plugin per dir.

plugin/builtin/NameTransformer.go

@@ -1,10 +1,5 @@
-// +build plugin
-
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-//go:generate go run sigs.k8s.io/kustomize/cmd/pluginator
-package main
+// Code generated by pluginator on NameTransformer; DO NOT EDIT.
+package builtin
 
 import (
 	"sigs.k8s.io/kustomize/pkg/ifc"
@@ -15,15 +10,17 @@ import (
 )
 
 // Add the given prefix and suffix to the resource name.
-type plugin struct {
+type NameTransformerPlugin struct {
 	Prefix     string             `json:"prefix,omitempty" yaml:"prefix,omitempty"`
 	Suffix     string             `json:"suffix,omitempty" yaml:"suffix,omitempty"`
 	FieldSpecs []config.FieldSpec `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
 }
 
-var KustomizePlugin plugin
+func NewNameTransformerPlugin() *NameTransformerPlugin {
+  return &NameTransformerPlugin{}
+}
 
-func (p *plugin) Config(
+func (p *NameTransformerPlugin) Config(
 	ldr ifc.Loader, rf *resmap.Factory, c []byte) (err error) {
 	p.Prefix = ""
 	p.Suffix = ""
@@ -31,7 +28,7 @@ func (p *plugin) Config(
 	return yaml.Unmarshal(c, p)
 }
 
-func (p *plugin) Transform(m resmap.ResMap) error {
+func (p *NameTransformerPlugin) Transform(m resmap.ResMap) error {
 	t, err := transformers.NewNamePrefixSuffixTransformer(
 		p.Prefix,
 		p.Suffix,