Isolated content of pkg/kustomize

pkg/transformers/multitransformer.go

@@ -0,0 +1,45 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package transformers
+
+import "k8s.io/kubectl/pkg/kustomize/resource"
+
+// multiTransformer contains a list of transformers.
+type multiTransformer struct {
+	transformers []Transformer
+}
+
+var _ Transformer = &multiTransformer{}
+
+// NewMultiTransformer constructs a multiTransformer.
+func NewMultiTransformer(t []Transformer) Transformer {
+	r := &multiTransformer{
+		transformers: make([]Transformer, len(t))}
+	copy(r.transformers, t)
+	return r
+}
+
+// Transform prepends the name prefix.
+func (o *multiTransformer) Transform(m resource.ResourceCollection) error {
+	for _, t := range o.transformers {
+		err := t.Transform(m)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}