Ease doing custom configuration of builtin plugins.

pkg/plugins/builtins.go

@@ -0,0 +1,75 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package plugins
+
+import (
+	"sigs.k8s.io/kustomize/v3/pkg/resmap"
+	"sigs.k8s.io/kustomize/v3/plugin/builtin"
+)
+
+//go:generate stringer -type=BuiltinPluginType
+type BuiltinPluginType int
+
+const (
+	Unknown BuiltinPluginType = iota
+	SecretGenerator
+	ConfigMapGenerator
+	ReplicaCountTransformer
+	NamespaceTransformer
+	PatchJson6902Transformer
+	PatchStrategicMergeTransformer
+	PatchTransformer
+	LabelTransformer
+	AnnotationsTransformer
+	PrefixSuffixTransformer
+	ImageTagTransformer
+	HashTransformer
+	InventoryTransformer
+	LegacyOrderTransformer
+)
+
+var stringToBuiltinPluginTypeMap map[string]BuiltinPluginType
+
+func init() {
+	stringToBuiltinPluginTypeMap = makeStringToBuiltinPluginTypeMap()
+}
+
+func makeStringToBuiltinPluginTypeMap() (result map[string]BuiltinPluginType) {
+	result = make(map[string]BuiltinPluginType, 23)
+	for k := range GeneratorFactories {
+		result[k.String()] = k
+	}
+	for k := range TransformerFactories {
+		result[k.String()] = k
+	}
+	return
+}
+
+func GetBuiltinPluginType(n string) BuiltinPluginType {
+	result, ok := stringToBuiltinPluginTypeMap[n]
+	if ok {
+		return result
+	}
+	return Unknown
+}
+
+var GeneratorFactories = map[BuiltinPluginType]func() resmap.GeneratorPlugin{
+	SecretGenerator:    builtin.NewSecretGeneratorPlugin,
+	ConfigMapGenerator: builtin.NewConfigMapGeneratorPlugin,
+}
+
+var TransformerFactories = map[BuiltinPluginType]func() resmap.TransformerPlugin{
+	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,
+}