convert helm inflator to builtin plugin

api/internal/plugins/builtinhelpers/builtins.go

@@ -27,6 +27,7 @@ const (
 	ReplicaCountTransformer
 	SecretGenerator
 	ValueAddTransformer
+	HelmChartInflationGenerator
 )
 
 var stringToBuiltinPluginTypeMap map[string]BuiltinPluginType
@@ -55,8 +56,9 @@ func GetBuiltinPluginType(n string) BuiltinPluginType {
 }
 
 var GeneratorFactories = map[BuiltinPluginType]func() resmap.GeneratorPlugin{
-	ConfigMapGenerator: builtins.NewConfigMapGeneratorPlugin,
-	SecretGenerator:    builtins.NewSecretGeneratorPlugin,
+	ConfigMapGenerator:          builtins.NewConfigMapGeneratorPlugin,
+	SecretGenerator:             builtins.NewSecretGeneratorPlugin,
+	HelmChartInflationGenerator: builtins.NewHelmChartInflationGeneratorPlugin,
 }
 
 var TransformerFactories = map[BuiltinPluginType]func() resmap.TransformerPlugin{

api/internal/target/kusttarget_configplugin.go

@@ -32,6 +32,7 @@ func (kt *KustTarget) configureBuiltinGenerators() (
 	for _, bpt := range []builtinhelpers.BuiltinPluginType{
 		builtinhelpers.ConfigMapGenerator,
 		builtinhelpers.SecretGenerator,
+		builtinhelpers.HelmChartInflationGenerator,
 	} {
 		r, err := generatorConfigurators[bpt](
 			kt, bpt, builtinhelpers.GeneratorFactories[bpt])
@@ -110,6 +111,23 @@ var generatorConfigurators = map[builtinhelpers.BuiltinPluginType]func(
 		}
 		return
 	},
+
+	builtinhelpers.HelmChartInflationGenerator: func(kt *KustTarget, bpt builtinhelpers.BuiltinPluginType, f gFactory) (
+		result []resmap.Generator, err error) {
+		var c struct {
+			types.HelmChartArgs
+		}
+		for _, args := range kt.kustomization.HelmChartInflationGenerator {
+			c.HelmChartArgs = args
+			p := f()
+			err := kt.configureBuiltinPlugin(p, c, bpt)
+			if err != nil {
+				return nil, err
+			}
+			result = append(result, p)
+		}
+		return
+	},
 }
 
 type tFactory func() resmap.TransformerPlugin