Remove plugins packages from external API.

api/builtins/HashTransformer.go

@@ -0,0 +1,42 @@
+// Code generated by pluginator on HashTransformer; DO NOT EDIT.
+// pluginator {Version:unknown GitCommit:$Format:%H$ BuildDate:1970-01-01T00:00:00Z GoOs:linux GoArch:amd64}
+
+
+
+package builtins
+
+import (
+	"fmt"
+
+	"sigs.k8s.io/kustomize/api/ifc"
+	"sigs.k8s.io/kustomize/api/resmap"
+)
+
+type HashTransformerPlugin struct {
+	hasher ifc.KunstructuredHasher
+}
+
+
+func (p *HashTransformerPlugin) Config(
+	h *resmap.PluginHelpers, config []byte) (err error) {
+	p.hasher = h.ResmapFactory().RF().Hasher()
+	return nil
+}
+
+// Transform appends hash to generated resources.
+func (p *HashTransformerPlugin) Transform(m resmap.ResMap) error {
+	for _, res := range m.Resources() {
+		if res.NeedHashSuffix() {
+			h, err := p.hasher.Hash(res)
+			if err != nil {
+				return err
+			}
+			res.SetName(fmt.Sprintf("%s-%s", res.GetName(), h))
+		}
+	}
+	return nil
+}
+
+func NewHashTransformerPlugin() resmap.TransformerPlugin {
+  return &HashTransformerPlugin{}
+}