Move hashing transformer out of k8sdeps.

plugin/builtin/HashTransformer.go

@@ -0,0 +1,36 @@
+// Code generated by pluginator on HashTransformer; DO NOT EDIT.
+package builtin
+
+import (
+	"fmt"
+	"sigs.k8s.io/kustomize/pkg/ifc"
+	"sigs.k8s.io/kustomize/pkg/resmap"
+)
+
+type HashTransformerPlugin struct {
+	hasher ifc.KunstructuredHasher
+}
+
+func NewHashTransformerPlugin() *HashTransformerPlugin {
+	return &HashTransformerPlugin{}
+}
+
+func (p *HashTransformerPlugin) Config(
+	ldr ifc.Loader, rf *resmap.Factory, config []byte) (err error) {
+	p.hasher = rf.RF().Hasher()
+	return nil
+}
+
+// Transform appends hash to generated resources.
+func (p *HashTransformerPlugin) Transform(m resmap.ResMap) error {
+	for _, res := range m {
+		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
+}

plugin/builtin/hashtransformer/HashTransformer.go

@@ -0,0 +1,38 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+//go:generate go run sigs.k8s.io/kustomize/plugin/pluginator
+package main
+
+import (
+	"fmt"
+
+	"sigs.k8s.io/kustomize/pkg/ifc"
+	"sigs.k8s.io/kustomize/pkg/resmap"
+)
+
+type plugin struct {
+	hasher ifc.KunstructuredHasher
+}
+
+var KustomizePlugin plugin
+
+func (p *plugin) Config(
+	ldr ifc.Loader, rf *resmap.Factory, config []byte) (err error) {
+	p.hasher = rf.RF().Hasher()
+	return nil
+}
+
+// Transform appends hash to generated resources.
+func (p *plugin) Transform(m resmap.ResMap) error {
+	for _, res := range m {
+		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
+}

plugin/builtin/hashtransformer/HashTransformer_test.go

@@ -0,0 +1,87 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package main_test
+
+import (
+	"testing"
+
+	"sigs.k8s.io/kustomize/pkg/kusttest"
+	"sigs.k8s.io/kustomize/plugin"
+)
+
+func TestHashTransformer(t *testing.T) {
+	tc := plugin.NewEnvForTest(t).Set()
+	defer tc.Reset()
+
+	tc.BuildGoPlugin(
+		"builtin", "", "HashTransformer")
+
+	th := kusttest_test.NewKustTestPluginHarness(t, "/app")
+
+	rm := th.LoadAndRunTransformer(`
+apiVersion: builtin
+kind: HashTransformer
+metadata:
+  name: myMapGen
+name: myMap
+envs:
+- devops.env
+- uxteam.env
+literals:
+- FRUIT=apple
+- VEGETABLE=carrot
+`, `
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: cm1
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: secret1
+---
+apiVersion: v1
+group: apps
+kind: Deployment
+metadata:
+  name: deploy1
+spec:
+  template:
+    metadata:
+      labels:
+        old-lab: old-val
+    spec:
+      containers:
+      - name: ngnix
+        image: nginx:1.7.9
+`)
+
+	th.AssertActualEqualsExpected(rm, `
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: cm1
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: secret1
+---
+apiVersion: v1
+group: apps
+kind: Deployment
+metadata:
+  name: deploy1
+spec:
+  template:
+    metadata:
+      labels:
+        old-lab: old-val
+    spec:
+      containers:
+      - image: nginx:1.7.9
+        name: ngnix
+`)
+}