Update OWNERS_ALIASES

Pin plugins to v0.0.0

Makefile

@@ -3,8 +3,11 @@
 #
 # Makefile for kustomize CLI and API.
 
-MYGOBIN := $(shell go env GOPATH)/bin
-SHELL := /bin/bash
+SHELL := /usr/bin/env bash
+MYGOBIN = $(shell go env GOBIN)
+ifeq ($(MYGOBIN),)
+MYGOBIN = $(shell go env GOPATH)/bin
+endif
 export PATH := $(MYGOBIN):$(PATH)
 MODULES := '"cmd/config" "api/" "kustomize/" "kyaml/"'
 
@@ -26,8 +29,7 @@ verify-kustomize: \
 	lint-kustomize \
 	test-unit-kustomize-all \
 	test-examples-kustomize-against-HEAD \
-	test-examples-kustomize-against-3.9.0 \
-	test-examples-kustomize-against-3.8.8
+	test-examples-kustomize-against-4.0
 
 # The following target referenced by a file in
 # https://github.com/kubernetes/test-infra/tree/master/config/jobs/kubernetes-sigs/kustomize
@@ -39,8 +41,7 @@ prow-presubmit-check: \
 	test-unit-cmd-all \
 	test-go-mod \
 	test-examples-kustomize-against-HEAD \
-	test-examples-kustomize-against-3.9.0 \
-	test-examples-kustomize-against-3.8.8
+	test-examples-kustomize-against-4.0
 
 .PHONY: verify-kustomize-e2e
 verify-kustomize-e2e: test-examples-e2e-kustomize
@@ -79,6 +80,11 @@ $(MYGOBIN)/gorepomod:
 	cd cmd/gorepomod; \
 	go install .
 
+# Build from local source.
+$(MYGOBIN)/k8scopy:
+	cd cmd/k8scopy; \
+	go install .
+
 # Build from local source.
 $(MYGOBIN)/pluginator:
 	cd cmd/pluginator; \
@@ -90,7 +96,7 @@ $(MYGOBIN)/prchecker:
 	go install .
 
 # Build from local source.
-$(MYGOBIN)/kustomize:
+$(MYGOBIN)/kustomize: build-kustomize-api
 	cd kustomize; \
 	go install .
 
@@ -98,13 +104,13 @@ $(MYGOBIN)/kustomize:
 install-tools: \
 	$(MYGOBIN)/goimports \
 	$(MYGOBIN)/golangci-lint-kustomize \
-	$(MYGOBIN)/gh \
 	$(MYGOBIN)/gorepomod \
+	$(MYGOBIN)/helmV3 \
+	$(MYGOBIN)/k8scopy \
 	$(MYGOBIN)/mdrip \
 	$(MYGOBIN)/pluginator \
 	$(MYGOBIN)/prchecker \
-	$(MYGOBIN)/stringer \
-	$(MYGOBIN)/helm
+	$(MYGOBIN)/stringer
 
 ### Begin kustomize plugin rules.
 #
@@ -144,6 +150,7 @@ _builtinplugins = \
 	PatchStrategicMergeTransformer.go \
 	PatchTransformer.go \
 	PrefixSuffixTransformer.go \
+	ReplacementTransformer.go \
 	ReplicaCountTransformer.go \
 	SecretGenerator.go \
 	ValueAddTransformer.go \
@@ -170,6 +177,7 @@ $(pGen)/PatchJson6902Transformer.go: $(pSrc)/patchjson6902transformer/PatchJson6
 $(pGen)/PatchStrategicMergeTransformer.go: $(pSrc)/patchstrategicmergetransformer/PatchStrategicMergeTransformer.go
 $(pGen)/PatchTransformer.go: $(pSrc)/patchtransformer/PatchTransformer.go
 $(pGen)/PrefixSuffixTransformer.go: $(pSrc)/prefixsuffixtransformer/PrefixSuffixTransformer.go
+$(pGen)/ReplacementTransformer.go: $(pSrc)/replacementtransformer/ReplacementTransformer.go
 $(pGen)/ReplicaCountTransformer.go: $(pSrc)/replicacounttransformer/ReplicaCountTransformer.go
 $(pGen)/SecretGenerator.go: $(pSrc)/secretgenerator/SecretGenerator.go
 $(pGen)/ValueAddTransformer.go: $(pSrc)/valueaddtransformer/ValueAddTransformer.go
@@ -221,7 +229,7 @@ build-kustomize-api: $(builtinplugins)
 	cd api; go build ./...
 
 .PHONY: generate-kustomize-api
-generate-kustomize-api:
+generate-kustomize-api: $(MYGOBIN)/k8scopy
 	cd api; go generate ./...
 
 .PHONY: test-unit-kustomize-api
@@ -276,12 +284,8 @@ test-examples-kustomize-against-HEAD: $(MYGOBIN)/kustomize $(MYGOBIN)/mdrip
 	./hack/testExamplesAgainstKustomize.sh HEAD
 
 .PHONY:
-test-examples-kustomize-against-3.9.0: $(MYGOBIN)/mdrip
-	./hack/testExamplesAgainstKustomize.sh v3.9.0
-
-.PHONY:
-test-examples-kustomize-against-3.8.8: $(MYGOBIN)/mdrip
-	./hack/testExamplesAgainstKustomize.sh v3.8.8
+test-examples-kustomize-against-4.0: $(MYGOBIN)/mdrip
+	./hack/testExamplesAgainstKustomize.sh v4@v4.0.5
 
 # linux only.
 # This is for testing an example plugin that
@@ -321,17 +325,13 @@ $(MYGOBIN)/helmV3:
 	( \
 		set -e; \
 		d=$(shell mktemp -d); cd $$d; \
-		tgzFile=helm-v3.4.0-linux-amd64.tar.gz; \
+		tgzFile=helm-v3.5.3-linux-amd64.tar.gz; \
 		wget https://get.helm.sh/$$tgzFile; \
 		tar -xvzf $$tgzFile; \
 		mv linux-amd64/helm $(MYGOBIN)/helmV3; \
 		rm -rf $$d \
 	)
 
-# Default version of helm is v3.
-$(MYGOBIN)/helm: $(MYGOBIN)/helmV3
-	ln -s $(MYGOBIN)/helmV3 $(MYGOBIN)/helm
-
 $(MYGOBIN)/kind:
 	( \
         set -e; \

OWNERS_ALIASES

@@ -1,14 +1,14 @@
 aliases:
   kustomize-admins:
+    - knverey
     - monopole
-    - pwittrock
   kustomize-maintainers:
     - droot
     - justinsb
     - liujingfang1
-    - mengqiy
     - monopole
-    - pwittrock
     - mortent
+    - natasha41575
     - phanimarupaka
+    - pwittrock
     - Shell32-Natsu

api/builtins/AnnotationsTransformer.go

@@ -7,7 +7,6 @@ import (
 	"sigs.k8s.io/kustomize/api/filters/annotations"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
 	"sigs.k8s.io/yaml"
 )
 
@@ -25,11 +24,14 @@ func (p *AnnotationsTransformerPlugin) Config(
 }
 
 func (p *AnnotationsTransformerPlugin) Transform(m resmap.ResMap) error {
+	if len(p.Annotations) == 0 {
+		return nil
+	}
 	for _, r := range m.Resources() {
-		err := filtersutil.ApplyToJSON(annotations.Filter{
+		err := r.ApplyFilter(annotations.Filter{
 			Annotations: p.Annotations,
 			FsSlice:     p.FieldSpecs,
-		}, r)
+		})
 		if err != nil {
 			return err
 		}

api/builtins/HashTransformer.go

@@ -11,7 +11,7 @@ import (
 )
 
 type HashTransformerPlugin struct {
-	hasher ifc.KunstructuredHasher
+	hasher ifc.KustHasher
 }
 
 func (p *HashTransformerPlugin) Config(
@@ -24,10 +24,11 @@ func (p *HashTransformerPlugin) Config(
 func (p *HashTransformerPlugin) Transform(m resmap.ResMap) error {
 	for _, res := range m.Resources() {
 		if res.NeedHashSuffix() {
-			h, err := p.hasher.Hash(res)
+			h, err := res.Hash(p.hasher)
 			if err != nil {
 				return err
 			}
+			res.StorePreviousId()
 			res.SetName(fmt.Sprintf("%s-%s", res.GetName(), h))
 		}
 	}

api/builtins/HelmChartInflationGenerator.go

@@ -6,17 +6,15 @@ package builtins
 import (
 	"bytes"
 	"fmt"
-	"io"
 	"io/ioutil"
 	"os"
 	"os/exec"
-	"path"
+	"path/filepath"
 	"regexp"
 	"strings"
 
 	"github.com/imdario/mergo"
 	"github.com/pkg/errors"
-	"sigs.k8s.io/kustomize/api/filesys"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/yaml"
@@ -25,207 +23,285 @@ import (
 // HelmChartInflationGeneratorPlugin is a plugin to generate resources
 // from a remote or local helm chart.
 type HelmChartInflationGeneratorPlugin struct {
-	h                *resmap.PluginHelpers
-	types.ObjectMeta `json:"metadata,omitempty" yaml:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
-	runHelmCommand   func([]string) ([]byte, error)
-	types.HelmChartArgs
+	h *resmap.PluginHelpers
+	types.HelmGlobals
+	types.HelmChart
 	tmpDir string
 }
 
 var KustomizePlugin HelmChartInflationGeneratorPlugin
 
+const (
+	valuesMergeOptionMerge    = "merge"
+	valuesMergeOptionOverride = "override"
+	valuesMergeOptionReplace  = "replace"
+)
+
+var legalMergeOptions = []string{
+	valuesMergeOptionMerge,
+	valuesMergeOptionOverride,
+	valuesMergeOptionReplace,
+}
+
 // Config uses the input plugin configurations `config` to setup the generator
 // options
-func (p *HelmChartInflationGeneratorPlugin) Config(h *resmap.PluginHelpers, config []byte) error {
+func (p *HelmChartInflationGeneratorPlugin) Config(
+	h *resmap.PluginHelpers, config []byte) (err error) {
+	if h.GeneralConfig() == nil {
+		return fmt.Errorf("unable to access general config")
+	}
+	if !h.GeneralConfig().HelmConfig.Enabled {
+		return fmt.Errorf("must specify --enable-helm")
+	}
+	if h.GeneralConfig().HelmConfig.Command == "" {
+		return fmt.Errorf("must specify --helm-command")
+	}
 	p.h = h
-	err := yaml.Unmarshal(config, p)
-	if err != nil {
-		return err
+	if err = yaml.Unmarshal(config, p); err != nil {
+		return
 	}
-	tmpDir, err := filesys.NewTmpConfirmedDir()
-	if err != nil {
-		return err
+	return p.validateArgs()
+}
+
+// This uses the real file system since tmpDir may be used
+// by the helm subprocess.  Cannot use a chroot jail or fake
+// filesystem since we allow the user to use previously
+// downloaded charts.  This is safe since this plugin is
+// owned by kustomize.
+func (p *HelmChartInflationGeneratorPlugin) establishTmpDir() (err error) {
+	if p.tmpDir != "" {
+		// already done.
+		return nil
 	}
-	p.tmpDir = string(tmpDir)
-	if p.ChartName == "" {
-		return fmt.Errorf("chartName cannot be empty")
+	p.tmpDir, err = ioutil.TempDir("", "kustomize-helm-")
+	return err
+}
+
+func (p *HelmChartInflationGeneratorPlugin) validateArgs() (err error) {
+	if p.Name == "" {
+		return fmt.Errorf("chart name cannot be empty")
 	}
+
+	// ChartHome might be consulted by the plugin (to read
+	// values files below it), so it must be located under
+	// the loader root (unless root restrictions are
+	// disabled, in which case this can be an absolute path).
 	if p.ChartHome == "" {
-		p.ChartHome = path.Join(p.tmpDir, "chart")
+		p.ChartHome = "charts"
 	}
-	if p.ChartRepoName == "" {
-		p.ChartRepoName = "stable"
+
+	// The ValuesFile may be consulted by the plugin, so it must
+	// be under the loader root (unless root restrictions are
+	// disabled).
+	if p.ValuesFile == "" {
+		p.ValuesFile = filepath.Join(p.ChartHome, p.Name, "values.yaml")
 	}
-	if p.HelmBin == "" {
-		p.HelmBin = "helm"
+
+	if err = p.errIfIllegalValuesMerge(); err != nil {
+		return err
 	}
-	if p.HelmHome == "" {
-		p.HelmHome = path.Join(p.tmpDir, ".helm")
-	}
-	if p.Values == "" {
-		p.Values = path.Join(p.ChartHome, p.ChartName, "values.yaml")
+
+	// ConfigHome is not loaded by the plugin, and can be located anywhere.
+	if p.ConfigHome == "" {
+		if err = p.establishTmpDir(); err != nil {
+			return errors.Wrap(
+				err, "unable to create tmp dir for HELM_CONFIG_HOME")
+		}
+		p.ConfigHome = filepath.Join(p.tmpDir, "helm")
 	}
+	return nil
+}
+
+func (p *HelmChartInflationGeneratorPlugin) errIfIllegalValuesMerge() error {
 	if p.ValuesMerge == "" {
-		p.ValuesMerge = "override"
+		// Use the default.
+		p.ValuesMerge = valuesMergeOptionOverride
+		return nil
 	}
-	// runHelmCommand will run `helm` command with args provided. Return stdout
-	// and error if there is any.
-	p.runHelmCommand = func(args []string) ([]byte, error) {
-		stdout := new(bytes.Buffer)
-		stderr := new(bytes.Buffer)
-		cmd := exec.Command(p.HelmBin, args...)
-		cmd.Stdout = stdout
-		cmd.Stderr = stderr
-		cmd.Env = append(cmd.Env,
-			fmt.Sprintf("HELM_CONFIG_HOME=%s", p.HelmHome),
-			fmt.Sprintf("HELM_CACHE_HOME=%s/.cache", p.HelmHome),
-			fmt.Sprintf("HELM_DATA_HOME=%s/.data", p.HelmHome),
+	for _, opt := range legalMergeOptions {
+		if p.ValuesMerge == opt {
+			return nil
+		}
+	}
+	return fmt.Errorf("valuesMerge must be one of %v", legalMergeOptions)
+}
+
+func (p *HelmChartInflationGeneratorPlugin) absChartHome() string {
+	if filepath.IsAbs(p.ChartHome) {
+		return p.ChartHome
+	}
+	return filepath.Join(p.h.Loader().Root(), p.ChartHome)
+}
+
+func (p *HelmChartInflationGeneratorPlugin) runHelmCommand(
+	args []string) ([]byte, error) {
+	stdout := new(bytes.Buffer)
+	stderr := new(bytes.Buffer)
+	cmd := exec.Command(p.h.GeneralConfig().HelmConfig.Command, args...)
+	cmd.Stdout = stdout
+	cmd.Stderr = stderr
+	env := []string{
+		fmt.Sprintf("HELM_CONFIG_HOME=%s", p.ConfigHome),
+		fmt.Sprintf("HELM_CACHE_HOME=%s/.cache", p.ConfigHome),
+		fmt.Sprintf("HELM_DATA_HOME=%s/.data", p.ConfigHome)}
+	cmd.Env = append(os.Environ(), env...)
+	err := cmd.Run()
+	if err != nil {
+		helm := p.h.GeneralConfig().HelmConfig.Command
+		err = errors.Wrap(
+			fmt.Errorf(
+				"unable to run: '%s %s' with env=%s (is '%s' installed?)",
+				helm, strings.Join(args, " "), env, helm),
+			stderr.String(),
 		)
-		err := cmd.Run()
-		if err != nil {
-			return stdout.Bytes(),
-				errors.Wrap(
-					fmt.Errorf("failed to run command %s %s", p.HelmBin, strings.Join(args, " ")),
-					stderr.String(),
-				)
-		}
-		return stdout.Bytes(), nil
 	}
-	return nil
+	return stdout.Bytes(), err
 }
 
-// EncodeValues for writing
-func (p *HelmChartInflationGeneratorPlugin) EncodeValues(w io.Writer) error {
-	d, err := yaml.Marshal(p.ValuesLocal)
-	if err != nil {
-		return err
+// createNewMergedValuesFile replaces/merges original values file with ValuesInline.
+func (p *HelmChartInflationGeneratorPlugin) createNewMergedValuesFile() (
+	path string, err error) {
+	if p.ValuesMerge == valuesMergeOptionMerge ||
+		p.ValuesMerge == valuesMergeOptionOverride {
+		if err = p.replaceValuesInline(); err != nil {
+			return "", err
+		}
 	}
-	_, err = w.Write(d)
+	var b []byte
+	b, err = yaml.Marshal(p.ValuesInline)
 	if err != nil {
-		return err
+		return "", err
 	}
-	return nil
+	return p.writeValuesBytes(b)
 }
 
-// useValuesLocal process (merge) inflator config provided values with chart default values.yaml
-func (p *HelmChartInflationGeneratorPlugin) useValuesLocal() error {
-	fn := path.Join(p.ChartHome, p.ChartName, "kustomize-values.yaml")
-	vf, err := os.Create(fn)
-	defer vf.Close()
+func (p *HelmChartInflationGeneratorPlugin) replaceValuesInline() error {
+	pValues, err := p.h.Loader().Load(p.ValuesFile)
 	if err != nil {
 		return err
 	}
-	// override, merge, none
-	if p.ValuesMerge == "none" || p.ValuesMerge == "no" || p.ValuesMerge == "false" {
-		p.Values = fn
-	} else {
-		pValues, err := ioutil.ReadFile(p.Values)
-		if err != nil {
-			return err
-		}
-		chValues := make(map[string]interface{})
-		err = yaml.Unmarshal(pValues, &chValues)
-		if err != nil {
-			return err
-		}
-		if p.ValuesMerge == "override" {
-			err = mergo.Merge(&chValues, p.ValuesLocal, mergo.WithOverride)
-			if err != nil {
-				return err
-			}
-		}
-		if p.ValuesMerge == "merge" {
-			err = mergo.Merge(&chValues, p.ValuesLocal)
-			if err != nil {
-				return err
-			}
-		}
-		p.ValuesLocal = chValues
-		p.Values = fn
-	}
-	err = p.EncodeValues(vf)
-	if err != nil {
+	chValues := make(map[string]interface{})
+	if err = yaml.Unmarshal(pValues, &chValues); err != nil {
 		return err
 	}
-	vf.Sync()
-	return nil
+	switch p.ValuesMerge {
+	case valuesMergeOptionOverride:
+		err = mergo.Merge(
+			&chValues, p.ValuesInline, mergo.WithOverride)
+	case valuesMergeOptionMerge:
+		err = mergo.Merge(&chValues, p.ValuesInline)
+	}
+	p.ValuesInline = chValues
+	return err
+}
+
+// copyValuesFile to avoid branching.  TODO: get rid of this.
+func (p *HelmChartInflationGeneratorPlugin) copyValuesFile() (string, error) {
+	b, err := p.h.Loader().Load(p.ValuesFile)
+	if err != nil {
+		return "", err
+	}
+	return p.writeValuesBytes(b)
+}
+
+// Write a absolute path file in the tmp file system.
+func (p *HelmChartInflationGeneratorPlugin) writeValuesBytes(
+	b []byte) (string, error) {
+	if err := p.establishTmpDir(); err != nil {
+		return "", fmt.Errorf("cannot create tmp dir to write helm values")
+	}
+	path := filepath.Join(p.tmpDir, p.Name+"-kustomize-values.yaml")
+	return path, ioutil.WriteFile(path, b, 0644)
+}
+
+func (p *HelmChartInflationGeneratorPlugin) cleanup() {
+	if p.tmpDir != "" {
+		os.RemoveAll(p.tmpDir)
+	}
 }
 
 // Generate implements generator
-func (p *HelmChartInflationGeneratorPlugin) Generate() (resmap.ResMap, error) {
-	// cleanup
-	defer os.RemoveAll(p.tmpDir)
-	// check helm version. we only support V3
-	err := p.checkHelmVersion()
+func (p *HelmChartInflationGeneratorPlugin) Generate() (rm resmap.ResMap, err error) {
+	defer p.cleanup()
+	if err = p.checkHelmVersion(); err != nil {
+		return nil, err
+	}
+	if path, exists := p.chartExistsLocally(); !exists {
+		if p.Repo == "" {
+			return nil, fmt.Errorf(
+				"no repo specified for pull, no chart found at '%s'", path)
+		}
+		if _, err := p.runHelmCommand(p.pullCommand()); err != nil {
+			return nil, err
+		}
+	}
+	if len(p.ValuesInline) > 0 {
+		p.ValuesFile, err = p.createNewMergedValuesFile()
+	} else {
+		p.ValuesFile, err = p.copyValuesFile()
+	}
 	if err != nil {
 		return nil, err
 	}
-	// pull the chart
-	if !p.checkLocalChart() {
-		_, err := p.runHelmCommand(p.getPullCommandArgs())
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	// inflator config valuesLocal
-	if len(p.ValuesLocal) > 0 {
-		err := p.useValuesLocal()
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	// render the charts
-	stdout, err := p.runHelmCommand(p.getTemplateCommandArgs())
+	var stdout []byte
+	stdout, err = p.runHelmCommand(p.templateCommand())
 	if err != nil {
 		return nil, err
 	}
 
-	return p.h.ResmapFactory().NewResMapFromBytes(stdout)
+	rm, err = p.h.ResmapFactory().NewResMapFromBytes(stdout)
+	if err == nil {
+		return rm, nil
+	}
+	// try to remove the contents before first "---" because
+	// helm may produce messages to stdout before it
+	stdoutStr := string(stdout)
+	if idx := strings.Index(stdoutStr, "---"); idx != -1 {
+		return p.h.ResmapFactory().NewResMapFromBytes([]byte(stdoutStr[idx:]))
+	}
+	return nil, err
 }
 
-func (p *HelmChartInflationGeneratorPlugin) getTemplateCommandArgs() []string {
+func (p *HelmChartInflationGeneratorPlugin) templateCommand() []string {
 	args := []string{"template"}
 	if p.ReleaseName != "" {
 		args = append(args, p.ReleaseName)
 	}
-	args = append(args, path.Join(p.ChartHome, p.ChartName))
-	if p.ReleaseNamespace != "" {
-		args = append(args, "--namespace", p.ReleaseNamespace)
+	args = append(args, filepath.Join(p.absChartHome(), p.Name))
+	if p.ValuesFile != "" {
+		args = append(args, "--values", p.ValuesFile)
 	}
-	if p.Values != "" {
-		args = append(args, "--values", p.Values)
+	if p.ReleaseName == "" {
+		// AFAICT, this doesn't work as intended due to a bug in helm.
+		// See https://github.com/helm/helm/issues/6019
+		// I've tried placing the flag before and after the name argument.
+		args = append(args, "--generate-name")
 	}
-	args = append(args, p.ExtraArgs...)
 	return args
 }
 
-func (p *HelmChartInflationGeneratorPlugin) getPullCommandArgs() []string {
-	args := []string{"pull", "--untar", "--untardir", p.ChartHome}
-	chartName := fmt.Sprintf("%s/%s", p.ChartRepoName, p.ChartName)
-	if p.ChartVersion != "" {
-		args = append(args, "--version", p.ChartVersion)
+func (p *HelmChartInflationGeneratorPlugin) pullCommand() []string {
+	args := []string{
+		"pull",
+		"--untar",
+		"--untardir", p.absChartHome(),
+		"--repo", p.Repo,
+		p.Name}
+	if p.Version != "" {
+		args = append(args, "--version", p.Version)
 	}
-	if p.ChartRepoURL != "" {
-		args = append(args, "--repo", p.ChartRepoURL)
-		chartName = p.ChartName
-	}
-
-	args = append(args, chartName)
-
 	return args
 }
 
-// checkLocalChart will return true if the chart does exist in
+// chartExistsLocally will return true if the chart does exist in
 // local chart home.
-func (p *HelmChartInflationGeneratorPlugin) checkLocalChart() bool {
-	path := path.Join(p.ChartHome, p.ChartName)
+func (p *HelmChartInflationGeneratorPlugin) chartExistsLocally() (string, bool) {
+	path := filepath.Join(p.absChartHome(), p.Name)
 	s, err := os.Stat(path)
 	if err != nil {
-		return false
+		return "", false
 	}
-	return s.IsDir()
+	return path, s.IsDir()
 }
 
 // checkHelmVersion will return an error if the helm version is not V3
@@ -234,11 +310,17 @@ func (p *HelmChartInflationGeneratorPlugin) checkHelmVersion() error {
 	if err != nil {
 		return err
 	}
-	r, err := regexp.Compile(`v\d+(\.\d+)+`)
+	r, err := regexp.Compile(`v?\d+(\.\d+)+`)
 	if err != nil {
 		return err
 	}
-	v := string(r.Find(stdout))[1:]
+	v := r.FindString(string(stdout))
+	if v == "" {
+		return fmt.Errorf("cannot find version string in %s", string(stdout))
+	}
+	if v[0] == 'v' {
+		v = v[1:]
+	}
 	majorVersion := strings.Split(v, ".")[0]
 	if majorVersion != "3" {
 		return fmt.Errorf("this plugin requires helm V3 but got v%s", v)

api/builtins/ImageTagTransformer.go

@@ -4,14 +4,9 @@
 package builtins
 
 import (
-	"fmt"
-	"regexp"
-	"strings"
-
 	"sigs.k8s.io/kustomize/api/filters/imagetag"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
 	"sigs.k8s.io/yaml"
 )
 
@@ -32,17 +27,17 @@ func (p *ImageTagTransformerPlugin) Config(
 func (p *ImageTagTransformerPlugin) Transform(m resmap.ResMap) error {
 	for _, r := range m.Resources() {
 		// traverse all fields at first
-		err := filtersutil.ApplyToJSON(imagetag.LegacyFilter{
+		err := r.ApplyFilter(imagetag.LegacyFilter{
 			ImageTag: p.ImageTag,
-		}, r)
+		})
 		if err != nil {
 			return err
 		}
 		// then use user specified field specs
-		err = filtersutil.ApplyToJSON(imagetag.Filter{
+		err = r.ApplyFilter(imagetag.Filter{
 			ImageTag: p.ImageTag,
 			FsSlice:  p.FieldSpecs,
-		}, r)
+		})
 		if err != nil {
 			return err
 		}
@@ -50,139 +45,6 @@ func (p *ImageTagTransformerPlugin) Transform(m resmap.ResMap) error {
 	return nil
 }
 
-func (p *ImageTagTransformerPlugin) mutateImage(in interface{}) (interface{}, error) {
-	original, ok := in.(string)
-	if !ok {
-		return nil, fmt.Errorf("image path is not of type string but %T", in)
-	}
-
-	if !isImageMatched(original, p.ImageTag.Name) {
-		return original, nil
-	}
-	name, tag := split(original)
-	if p.ImageTag.NewName != "" {
-		name = p.ImageTag.NewName
-	}
-	if p.ImageTag.NewTag != "" {
-		tag = ":" + p.ImageTag.NewTag
-	}
-	if p.ImageTag.Digest != "" {
-		tag = "@" + p.ImageTag.Digest
-	}
-	return name + tag, nil
-}
-
-// findAndReplaceImage replaces the image name and
-// tags inside one object.
-// It searches the object for container session
-// then loops though all images inside containers
-// session, finds matched ones and update the
-// image name and tag name
-func (p *ImageTagTransformerPlugin) findAndReplaceImage(obj map[string]interface{}) error {
-	paths := []string{"containers", "initContainers"}
-	updated := false
-	for _, path := range paths {
-		containers, found := obj[path]
-		if found && containers != nil {
-			if _, err := p.updateContainers(containers); err != nil {
-				return err
-			}
-			updated = true
-		}
-	}
-	if !updated {
-		return p.findContainers(obj)
-	}
-	return nil
-}
-
-func (p *ImageTagTransformerPlugin) updateContainers(in interface{}) (interface{}, error) {
-	containers, ok := in.([]interface{})
-	if !ok {
-		return nil, fmt.Errorf(
-			"containers path is not of type []interface{} but %T", in)
-	}
-	for i := range containers {
-		container := containers[i].(map[string]interface{})
-		containerImage, found := container["image"]
-		if !found {
-			continue
-		}
-		imageName := containerImage.(string)
-		if isImageMatched(imageName, p.ImageTag.Name) {
-			newImage, err := p.mutateImage(imageName)
-			if err != nil {
-				return nil, err
-			}
-			container["image"] = newImage
-		}
-	}
-	return containers, nil
-}
-
-func (p *ImageTagTransformerPlugin) findContainers(obj map[string]interface{}) error {
-	for key := range obj {
-		switch typedV := obj[key].(type) {
-		case map[string]interface{}:
-			err := p.findAndReplaceImage(typedV)
-			if err != nil {
-				return err
-			}
-		case []interface{}:
-			for i := range typedV {
-				item := typedV[i]
-				typedItem, ok := item.(map[string]interface{})
-				if ok {
-					err := p.findAndReplaceImage(typedItem)
-					if err != nil {
-						return err
-					}
-				}
-			}
-		}
-	}
-	return nil
-}
-
-func isImageMatched(s, t string) bool {
-	// Tag values are limited to [a-zA-Z0-9_.{}-].
-	// Some tools like Bazel rules_k8s allow tag patterns with {} characters.
-	// More info: https://github.com/bazelbuild/rules_k8s/pull/423
-	pattern, _ := regexp.Compile("^" + t + "(@sha256)?(:[a-zA-Z0-9_.{}-]*)?$")
-	return pattern.MatchString(s)
-}
-
-// split separates and returns the name and tag parts
-// from the image string using either colon `:` or at `@` separators.
-// Note that the returned tag keeps its separator.
-func split(imageName string) (name string, tag string) {
-	// check if image name contains a domain
-	// if domain is present, ignore domain and check for `:`
-	ic := -1
-	if slashIndex := strings.Index(imageName, "/"); slashIndex < 0 {
-		ic = strings.LastIndex(imageName, ":")
-	} else {
-		lastIc := strings.LastIndex(imageName[slashIndex:], ":")
-		// set ic only if `:` is present
-		if lastIc > 0 {
-			ic = slashIndex + lastIc
-		}
-	}
-	ia := strings.LastIndex(imageName, "@")
-	if ic < 0 && ia < 0 {
-		return imageName, ""
-	}
-
-	i := ic
-	if ia > 0 {
-		i = ia
-	}
-
-	name = imageName[:i]
-	tag = imageName[i:]
-	return
-}
-
 func NewImageTagTransformerPlugin() resmap.TransformerPlugin {
 	return &ImageTagTransformerPlugin{}
 }

api/builtins/LabelTransformer.go

@@ -7,7 +7,6 @@ import (
 	"sigs.k8s.io/kustomize/api/filters/labels"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
 	"sigs.k8s.io/yaml"
 )
 
@@ -25,11 +24,14 @@ func (p *LabelTransformerPlugin) Config(
 }
 
 func (p *LabelTransformerPlugin) Transform(m resmap.ResMap) error {
+	if len(p.Labels) == 0 {
+		return nil
+	}
 	for _, r := range m.Resources() {
-		err := filtersutil.ApplyToJSON(labels.Filter{
+		err := r.ApplyFilter(labels.Filter{
 			Labels:  p.Labels,
 			FsSlice: p.FieldSpecs,
-		}, r)
+		})
 		if err != nil {
 			return err
 		}

api/builtins/NamespaceTransformer.go

@@ -9,7 +9,6 @@ import (
 	"sigs.k8s.io/kustomize/api/filters/namespace"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
 	"sigs.k8s.io/yaml"
 )
 
@@ -35,11 +34,11 @@ func (p *NamespaceTransformerPlugin) Transform(m resmap.ResMap) error {
 			// Don't mutate empty objects?
 			continue
 		}
-		err := filtersutil.ApplyToJSON(namespace.Filter{
+		r.StorePreviousId()
+		if err := r.ApplyFilter(namespace.Filter{
 			Namespace: p.Namespace,
 			FsSlice:   p.FieldSpecs,
-		}, r)
-		if err != nil {
+		}); err != nil {
 			return err
 		}
 		matches := m.GetMatchingResourcesByCurrentId(r.CurId().Equals)

api/builtins/PatchJson6902Transformer.go

@@ -12,7 +12,6 @@ import (
 	"sigs.k8s.io/kustomize/api/ifc"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
 	"sigs.k8s.io/yaml"
 )
 
@@ -79,9 +78,9 @@ func (p *PatchJson6902TransformerPlugin) Transform(m resmap.ResMap) error {
 		return err
 	}
 	for _, res := range resources {
-		err = filtersutil.ApplyToJSON(patchjson6902.Filter{
+		err = res.ApplyFilter(patchjson6902.Filter{
 			Patch: p.JsonOp,
-		}, res)
+		})
 		if err != nil {
 			return err
 		}

api/builtins/PatchStrategicMergeTransformer.go

@@ -28,46 +28,48 @@ func (p *PatchStrategicMergeTransformerPlugin) Config(
 		return fmt.Errorf("empty file path and empty patch content")
 	}
 	if len(p.Paths) != 0 {
-		for _, onePath := range p.Paths {
-			// The following oddly attempts to interpret a path string as an
-			// actual patch (instead of as a path to a file containing a patch).
-			// All tests pass if this code is commented out.  This code should
-			// be deleted; the user should use the Patches field which
-			// exists for this purpose (inline patch declaration).
-			res, err := h.ResmapFactory().RF().SliceFromBytes([]byte(onePath))
-			if err == nil {
-				p.loadedPatches = append(p.loadedPatches, res...)
-				continue
-			}
-			res, err = h.ResmapFactory().RF().SliceFromPatches(
-				h.Loader(), []types.PatchStrategicMerge{onePath})
-			if err != nil {
-				return err
-			}
-			p.loadedPatches = append(p.loadedPatches, res...)
-		}
-	}
-	if p.Patches != "" {
-		res, err := h.ResmapFactory().RF().SliceFromBytes([]byte(p.Patches))
+		patches, err := loadFromPaths(h, p.Paths)
 		if err != nil {
 			return err
 		}
-		p.loadedPatches = append(p.loadedPatches, res...)
+		p.loadedPatches = append(p.loadedPatches, patches...)
+	}
+	if p.Patches != "" {
+		patches, err := h.ResmapFactory().RF().SliceFromBytes([]byte(p.Patches))
+		if err != nil {
+			return err
+		}
+		p.loadedPatches = append(p.loadedPatches, patches...)
 	}
-
 	if len(p.loadedPatches) == 0 {
 		return fmt.Errorf(
 			"patch appears to be empty; files=%v, Patch=%s", p.Paths, p.Patches)
 	}
-	// Merge the patches, looking for conflicts.
-	m, err := h.ResmapFactory().ConflatePatches(p.loadedPatches)
-	if err != nil {
-		return err
-	}
-	p.loadedPatches = m.Resources()
 	return nil
 }
 
+func loadFromPaths(
+	h *resmap.PluginHelpers,
+	paths []types.PatchStrategicMerge) (
+	result []*resource.Resource, err error) {
+	var patches []*resource.Resource
+	for _, path := range paths {
+		// For legacy reasons, attempt to treat the path string as
+		// actual patch content.
+		patches, err = h.ResmapFactory().RF().SliceFromBytes([]byte(path))
+		if err != nil {
+			// Failing that, treat it as a file path.
+			patches, err = h.ResmapFactory().RF().SliceFromPatches(
+				h.Loader(), []types.PatchStrategicMerge{path})
+			if err != nil {
+				return
+			}
+		}
+		result = append(result, patches...)
+	}
+	return
+}
+
 func (p *PatchStrategicMergeTransformerPlugin) Transform(m resmap.ResMap) error {
 	for _, patch := range p.loadedPatches {
 		target, err := m.GetById(patch.OrgId())

api/builtins/PatchTransformer.go

@@ -12,7 +12,6 @@ import (
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/resource"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
 	"sigs.k8s.io/yaml"
 )
 
@@ -22,6 +21,7 @@ type PatchTransformerPlugin struct {
 	Path         string          `json:"path,omitempty" yaml:"path,omitempty"`
 	Patch        string          `json:"patch,omitempty" yaml:"patch,omitempty"`
 	Target       *types.Selector `json:"target,omitempty" yaml:"target,omitempty"`
+	Options      map[string]bool `json:"options,omitempty" yaml:"options,omitempty"`
 }
 
 func (p *PatchTransformerPlugin) Config(
@@ -61,6 +61,12 @@ func (p *PatchTransformerPlugin) Config(
 	}
 	if errSM == nil {
 		p.loadedPatch = patchSM
+		if p.Options["allowNameChange"] {
+			p.loadedPatch.SetAllowNameChange("true")
+		}
+		if p.Options["allowKindChange"] {
+			p.loadedPatch.SetAllowKindChange("true")
+		}
 	} else {
 		p.decodedPatch = patchJson
 	}
@@ -105,9 +111,10 @@ func (p *PatchTransformerPlugin) transformJson6902(m resmap.ResMap, patch jsonpa
 		return err
 	}
 	for _, res := range resources {
-		err = filtersutil.ApplyToJSON(patchjson6902.Filter{
+		res.StorePreviousId()
+		err = res.ApplyFilter(patchjson6902.Filter{
 			Patch: p.Patch,
-		}, res)
+		})
 		if err != nil {
 			return err
 		}

api/builtins/PrefixSuffixTransformer.go

@@ -10,7 +10,6 @@ import (
 	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
 	"sigs.k8s.io/yaml"
 )
 
@@ -67,14 +66,18 @@ func (p *PrefixSuffixTransformerPlugin) Transform(m resmap.ResMap) error {
 				// this will add a prefix and a suffix
 				// to the resource even if those are
 				// empty
+
 				r.AddNamePrefix(p.Prefix)
 				r.AddNameSuffix(p.Suffix)
+				if p.Prefix != "" || p.Suffix != "" {
+					r.StorePreviousId()
+				}
 			}
-			err := filtersutil.ApplyToJSON(prefixsuffix.Filter{
+			err := r.ApplyFilter(prefixsuffix.Filter{
 				Prefix:    p.Prefix,
 				Suffix:    p.Suffix,
 				FieldSpec: fs,
-			}, r)
+			})
 			if err != nil {
 				return err
 			}

api/builtins/ReplacementTransformer.go

@@ -0,0 +1,65 @@
+// Code generated by pluginator on ReplacementTransformer; DO NOT EDIT.
+// pluginator {unknown  1970-01-01T00:00:00Z  }
+
+package builtins
+
+import (
+	"fmt"
+
+	"sigs.k8s.io/kustomize/api/filters/replacement"
+	"sigs.k8s.io/kustomize/api/resmap"
+	"sigs.k8s.io/kustomize/api/types"
+	kyaml "sigs.k8s.io/kustomize/kyaml/yaml"
+	"sigs.k8s.io/yaml"
+)
+
+// Replace values in targets with values from a source
+type ReplacementTransformerPlugin struct {
+	ReplacementList []types.ReplacementField `json:"replacements,omitempty" yaml:"replacements,omitempty"`
+	Replacements    []types.Replacement      `json:"omitempty" yaml:"omitempty"`
+}
+
+func (p *ReplacementTransformerPlugin) Config(
+	h *resmap.PluginHelpers, c []byte) (err error) {
+	p.ReplacementList = []types.ReplacementField{}
+	if err := yaml.Unmarshal(c, p); err != nil {
+		return err
+	}
+
+	for _, r := range p.ReplacementList {
+		if r.Path != "" && (r.Source != nil || len(r.Targets) != 0) {
+			return fmt.Errorf("cannot specify both path and inline replacement")
+		}
+		if r.Path != "" {
+			// load the replacement from the path
+			content, err := h.Loader().Load(r.Path)
+			if err != nil {
+				return err
+			}
+			repl := types.Replacement{}
+			if err := yaml.Unmarshal(content, &repl); err != nil {
+				return err
+			}
+			p.Replacements = append(p.Replacements, repl)
+		} else {
+			// replacement information is already loaded
+			p.Replacements = append(p.Replacements, r.Replacement)
+		}
+	}
+	return nil
+}
+
+func (p *ReplacementTransformerPlugin) Transform(m resmap.ResMap) (err error) {
+	var nodes []*kyaml.RNode
+	for _, r := range m.Resources() {
+		nodes = append(nodes, r.Node())
+	}
+	_, err = replacement.Filter{
+		Replacements: p.Replacements,
+	}.Filter(nodes)
+	return err
+}
+
+func NewReplacementTransformerPlugin() resmap.TransformerPlugin {
+	return &ReplacementTransformerPlugin{}
+}

api/builtins/ReplicaCountTransformer.go

@@ -7,8 +7,6 @@ import (
 	"fmt"
 
 	"sigs.k8s.io/kustomize/api/filters/replicacount"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
-
 	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/types"
@@ -33,19 +31,17 @@ func (p *ReplicaCountTransformerPlugin) Transform(m resmap.ResMap) error {
 	found := false
 	for _, fs := range p.FieldSpecs {
 		matcher := p.createMatcher(fs)
-		matchOriginal := m.GetMatchingResourcesByOriginalId(matcher)
-		resList := append(
-			matchOriginal, m.GetMatchingResourcesByCurrentId(matcher)...)
+		resList := m.GetMatchingResourcesByAnyId(matcher)
 		if len(resList) > 0 {
 			found = true
 			for _, r := range resList {
 				// There are redundant checks in the filter
 				// that we'll live with until resolution of
 				// https://github.com/kubernetes-sigs/kustomize/issues/2506
-				err := filtersutil.ApplyToJSON(replicacount.Filter{
+				err := r.ApplyFilter(replicacount.Filter{
 					Replica:   p.Replica,
 					FieldSpec: fs,
-				}, r)
+				})
 				if err != nil {
 					return err
 				}

api/builtins/ValueAddTransformer.go

@@ -13,7 +13,6 @@ import (
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/resource"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
 	"sigs.k8s.io/yaml"
 )
 
@@ -119,15 +118,15 @@ func (p *ValueAddTransformerPlugin) Transform(m resmap.ResMap) (err error) {
 		// TODO: consider t.NotSelector if implemented
 		for _, res := range resources {
 			if t.FieldPath == types.MetadataNamespacePath {
-				err = filtersutil.ApplyToJSON(namespace.Filter{
+				err = res.ApplyFilter(namespace.Filter{
 					Namespace: p.Value,
-				}, res)
+				})
 			} else {
-				err = filtersutil.ApplyToJSON(valueadd.Filter{
+				err = res.ApplyFilter(valueadd.Filter{
 					Value:            p.Value,
 					FieldPath:        t.FieldPath,
 					FilePathPosition: t.FilePathPosition,
-				}, res)
+				})
 			}
 			if err != nil {
 				return err

api/filesys/confirmeddir_test.go

@@ -4,6 +4,7 @@
 package filesys_test
 
 import (
+	"os"
 	"path/filepath"
 	"testing"
 
@@ -98,6 +99,7 @@ func TestNewTempConfirmDir(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
+	defer os.RemoveAll(string(tmp))
 
 	delinked, err := filepath.EvalSymlinks(string(tmp))
 	if err != nil {

api/filesys/fsnode.go

@@ -6,6 +6,7 @@ package filesys
 import (
 	"bytes"
 	"fmt"
+	"io"
 	"log"
 	"os"
 	"path/filepath"
@@ -37,9 +38,9 @@ type fsNode struct {
 	// if this node is a file, this is the content.
 	content []byte
 
-	// if this node is a file, this tracks whether or
-	// not it is "open".
-	open bool
+	// if offset is not nil the file is open and it tracks
+	// the current file offset.
+	offset *int
 }
 
 // MakeEmptyDirInMemory returns an empty directory.
@@ -119,6 +120,9 @@ func (n *fsNode) addFile(name string, c []byte) (result *fsNode, err error) {
 	result, ok := parent.dir[fileName]
 	if ok {
 		// File already exists; overwrite it.
+		if result.offset != nil {
+			return nil, fmt.Errorf("cannot add already opened file '%s'", n.Path())
+		}
 		result.content = c
 		return result, nil
 	}
@@ -133,7 +137,12 @@ func (n *fsNode) addFile(name string, c []byte) (result *fsNode, err error) {
 // Create implements FileSystem.
 // Create makes an empty file.
 func (n *fsNode) Create(path string) (result File, err error) {
-	return n.AddFile(path, []byte{})
+	f, err := n.AddFile(path, nil)
+	if err != nil {
+		return f, err
+	}
+	f.offset = new(int)
+	return f, nil
 }
 
 // WriteFile implements FileSystem.
@@ -154,6 +163,7 @@ func (n *fsNode) AddFile(
 }
 
 func (n *fsNode) addDir(path string) (result *fsNode, err error) {
+
 	parent := n
 	dName, subDirName := mySplit(path)
 	if dName != "" {
@@ -348,7 +358,17 @@ func (n *fsNode) Size() int64 {
 }
 
 // Open implements FileSystem.
-// Open opens the node for reading (just marks it).
+// Open opens the node in read-write mode and sets the offset its start.
+// Writing right after opening the file will replace the original content
+// and move the offset forward, as with a file opened with O_RDWR | O_CREATE.
+//
+// As an example, let's consider a file with content "content":
+// - open: sets offset to start, content is "content"
+// - write "@": offset increases by one, the content is now "@ontent"
+// - read the rest: since offset is 1, the read operation returns "ontent"
+// - write "$": offset is at EOF, so "$" is appended and content is now "@ontent$"
+// - read the rest: returns 0 bytes and EOF
+// - close: the content is still "@ontent$"
 func (n *fsNode) Open(path string) (File, error) {
 	result, err := n.Find(path)
 	if err != nil {
@@ -357,13 +377,19 @@ func (n *fsNode) Open(path string) (File, error) {
 	if result == nil {
 		return nil, fmt.Errorf("cannot find '%s' to open it", path)
 	}
-	result.open = true
+	if result.offset != nil {
+		return nil, fmt.Errorf("cannot open previously opened file '%s'", path)
+	}
+	result.offset = new(int)
 	return result, nil
 }
 
 // Close marks the node closed.
 func (n *fsNode) Close() error {
-	n.open = false
+	if n.offset == nil {
+		return fmt.Errorf("cannot close already closed file '%s'", n.Path())
+	}
+	n.offset = nil
 	return nil
 }
 
@@ -376,9 +402,12 @@ func (n *fsNode) ReadFile(path string) (c []byte, err error) {
 	if result == nil {
 		return nil, fmt.Errorf("cannot find '%s' to read it", path)
 	}
+	if result.isNodeADir() {
+		return nil, fmt.Errorf("cannot read content from non-file '%s'", n.Path())
+	}
 	c = make([]byte, len(result.content))
-	_, err = result.Read(c)
-	return c, err
+	copy(c, result.content)
+	return c, nil
 }
 
 // Read returns the content of the file node.
@@ -387,7 +416,19 @@ func (n *fsNode) Read(d []byte) (c int, err error) {
 		return 0, fmt.Errorf(
 			"cannot read content from non-file '%s'", n.Path())
 	}
-	return copy(d, n.content), nil
+	if n.offset == nil {
+		return 0, fmt.Errorf("cannot read from closed file '%s'", n.Path())
+	}
+
+	rest := n.content[*n.offset:]
+	if len(d) < len(rest) {
+		rest = rest[:len(d)]
+	} else {
+		err = io.EOF
+	}
+	copy(d, rest)
+	*n.offset += len(rest)
+	return len(rest), err
 }
 
 // Write saves the contents of the argument to the file node.
@@ -396,8 +437,12 @@ func (n *fsNode) Write(p []byte) (c int, err error) {
 		return 0, fmt.Errorf(
 			"cannot write content to non-file '%s'", n.Path())
 	}
-	n.content = make([]byte, len(p))
-	return copy(n.content, p), nil
+	if n.offset == nil {
+		return 0, fmt.Errorf("cannot write to closed file '%s'", n.Path())
+	}
+	n.content = append(n.content[:*n.offset], p...)
+	*n.offset = len(n.content)
+	return len(p), nil
 }
 
 // ContentMatches returns true if v matches fake file's content.

api/filesys/fsnode_test.go

@@ -5,6 +5,9 @@ package filesys
 
 import (
 	"fmt"
+	"io"
+	"io/ioutil"
+	"math/rand"
 	"os"
 	"path/filepath"
 	"sort"
@@ -91,7 +94,6 @@ func TestMakeFsInMemory(t *testing.T) {
 func runBasicOperations(
 	t *testing.T, tName string, isFSysRooted bool,
 	cases []pathCase, fSys FileSystem) {
-	buff := make([]byte, 500)
 	for _, c := range cases {
 		err := fSys.WriteFile(c.arg, []byte(content))
 		if c.errStr != "" {
@@ -128,26 +130,40 @@ func runBasicOperations(
 		if fi.Name() != c.name {
 			t.Fatalf("%s; expected name '%s', got '%s'", c.what, c.name, fi.Name())
 		}
-		count, err := f.Read(buff)
+		buff, err := ioutil.ReadAll(f)
 		if err != nil {
 			t.Fatalf("%s; unexpected error: %v", c.what, err)
 		}
-		if string(buff[:count]) != content {
+		if string(buff) != content {
 			t.Fatalf("%s; unexpected buff '%s'", c.what, buff)
 		}
-		count, err = f.Write([]byte(shortContent))
+		count, err := f.Write([]byte(shortContent))
 		if err != nil {
 			t.Fatalf("%s; unexpected error: %v", c.what, err)
 		}
 		if count != len(shortContent) {
 			t.Fatalf("%s; unexpected count: %d", c.what, len(shortContent))
 		}
+		if err := f.Close(); err != nil {
+			t.Fatalf("%s; unexpected error: %v", c.what, err)
+		}
+		stuff, err = fSys.ReadFile(c.path)
+		if err != nil {
+			t.Fatalf("%s; unexpected error: %v", c.what, err)
+		}
+		both := content + shortContent
+		if string(stuff) != both {
+			t.Fatalf("%s; unexpected content '%s', expected '%s'", c.what, stuff, both)
+		}
+		if err := fSys.WriteFile(c.path, []byte(shortContent)); err != nil {
+			t.Fatalf("%s; unexpected error: %v", c.what, err)
+		}
 		stuff, err = fSys.ReadFile(c.path)
 		if err != nil {
 			t.Fatalf("%s; unexpected error: %v", c.what, err)
 		}
 		if string(stuff) != shortContent {
-			t.Fatalf("%s; unexpected content '%s'", c.what, stuff)
+			t.Fatalf("%s; unexpected content '%s', expected '%s'", c.what, stuff, shortContent)
 		}
 	}
 
@@ -589,6 +605,7 @@ func TestGlob(t *testing.T) {
 }
 
 func assertEqualStringSlices(t *testing.T, expected, actual []string, message string) {
+	t.Helper()
 	if len(expected) != len(actual) {
 		t.Fatalf(
 			"%s; unequal sizes; len(expected)=%d, len(actual)=%d\n%+v\n%+v\n",
@@ -786,3 +803,52 @@ func TestCleanedAbs(t *testing.T) {
 		}
 	}
 }
+
+func TestFileOps(t *testing.T) {
+	const path = "foo.txt"
+	content := strings.Repeat("longest content", 100)
+
+	fs := MakeFsInMemory()
+	f, err := fs.Create(path)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if _, err := fs.Open(path); err == nil {
+		t.Fatalf("expected already opened error, got nil")
+	}
+	if _, err := fmt.Fprint(f, content); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	if err := f.Close(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if err := f.Close(); err == nil {
+		t.Fatalf("expected already closed error, got nil")
+	}
+
+	f, err = fs.Open(path)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	defer f.Close()
+
+	for {
+		buf := make([]byte, rand.Intn(10))
+		n, err := f.Read(buf)
+		if err != nil && err != io.EOF {
+			t.Fatalf("unexpected error: %v", err)
+		}
+		if content[:n] != string(buf[:n]) {
+			t.Fatalf("unexpected read: expected %q got %q", content[:n], buf[:n])
+		}
+		content = content[n:]
+		if err != io.EOF {
+			continue
+		}
+		if len(content) == 0 {
+			break
+		}
+		t.Fatalf("unexpected EOF: remaining %d bytes", len(content))
+	}
+}

api/filters/annotations/annotations.go

@@ -24,7 +24,7 @@ type Filter struct {
 var _ kio.Filter = Filter{}
 
 func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
-	keys := filtersutil.SortedMapKeys(f.Annotations)
+	keys := yaml.SortedMapKeys(f.Annotations)
 	_, err := kio.FilterAll(yaml.FilterFunc(
 		func(node *yaml.RNode) (*yaml.RNode, error) {
 			for _, k := range keys {

api/filters/annotations/example_test.go

@@ -28,7 +28,9 @@ metadata:
 `)}},
 		Filters: []kio.Filter{Filter{
 			Annotations: map[string]string{
-				"foo": "bar",
+				"foo":          "bar",
+				"booleanValue": "true",
+				"numberValue":  "42",
 			},
 			FsSlice: fss,
 		}},
@@ -44,12 +46,16 @@ metadata:
 	// metadata:
 	//   name: instance
 	//   annotations:
+	//     booleanValue: "true"
 	//     foo: bar
+	//     numberValue: "42"
 	// ---
 	// apiVersion: example.com/v1
 	// kind: Bar
 	// metadata:
 	//   name: instance
 	//   annotations:
+	//     booleanValue: "true"
 	//     foo: bar
+	//     numberValue: "42"
 }

api/filters/fieldspec/fieldspec.go

@@ -4,9 +4,11 @@
 package fieldspec
 
 import (
+	"fmt"
 	"strings"
 
 	"sigs.k8s.io/kustomize/api/filters/filtersutil"
+	"sigs.k8s.io/kustomize/api/internal/utils"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/kustomize/kyaml/errors"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
@@ -14,7 +16,16 @@ import (
 
 var _ yaml.Filter = Filter{}
 
-// Filter applies a single fieldSpec to a single object
+// Filter possibly mutates its object argument using a FieldSpec.
+// If the object matches the FieldSpec, and the node found
+// by following the fieldSpec's path is non-null, this filter calls
+// the setValue function on the node at the end of the path.
+// If any part of the path doesn't exist, the filter returns
+// without doing anything and without error, unless it was set
+// to create the path. If set to create, it creates a tree of maps
+// along the path, and the leaf node gets the setValue called on it.
+// Error on GVK mismatch, empty or poorly formed path.
+// Filter expect kustomize style paths, not JSON paths.
 // Filter stores internal state and should not be reused
 type Filter struct {
 	// FieldSpec contains the path to the value to set.
@@ -37,44 +48,51 @@ func (fltr Filter) Filter(obj *yaml.RNode) (*yaml.RNode, error) {
 	if match, err := isMatchGVK(fltr.FieldSpec, obj); !match || err != nil {
 		return obj, errors.Wrap(err)
 	}
-	fltr.path = splitPath(fltr.FieldSpec.Path)
-	if err := fltr.filter(obj); err != nil {
+	fltr.path = utils.PathSplitter(fltr.FieldSpec.Path)
+	err := fltr.filter(obj)
+	if err != nil {
 		s, _ := obj.String()
 		return nil, errors.WrapPrefixf(err,
-			"obj '%s' at path '%v'", s, fltr.FieldSpec.Path)
+			"considering field '%s' of object\n%v", fltr.FieldSpec.Path, s)
 	}
 	return obj, nil
 }
 
+// Recursively called.
 func (fltr Filter) filter(obj *yaml.RNode) error {
 	if len(fltr.path) == 0 {
 		// found the field -- set its value
 		return fltr.SetValue(obj)
 	}
-	if obj.IsTaggedNull() {
+	if obj.IsTaggedNull() || obj.IsNil() {
 		return nil
 	}
 	switch obj.YNode().Kind {
 	case yaml.SequenceNode:
-		return fltr.seq(obj)
+		return fltr.handleSequence(obj)
 	case yaml.MappingNode:
-		return fltr.field(obj)
+		return fltr.handleMap(obj)
+	case yaml.AliasNode:
+		return fltr.filter(yaml.NewRNode(obj.YNode().Alias))
 	default:
 		return errors.Errorf("expected sequence or mapping node")
 	}
 }
 
-// field calls filter on the field matching the next path element
-func (fltr Filter) field(obj *yaml.RNode) error {
+// handleMap calls filter on the map field matching the next path element
+func (fltr Filter) handleMap(obj *yaml.RNode) error {
 	fieldName, isSeq := isSequenceField(fltr.path[0])
+	if fieldName == "" {
+		return fmt.Errorf("cannot set or create an empty field name")
+	}
 	// lookup the field matching the next path element
-	var lookupField yaml.Filter
+	var operation yaml.Filter
 	var kind yaml.Kind
 	tag := yaml.NodeTagEmpty
 	switch {
 	case !fltr.FieldSpec.CreateIfNotPresent || fltr.CreateKind == 0 || isSeq:
-		// dont' create the field if we don't find it
-		lookupField = yaml.Lookup(fieldName)
+		// don't create the field if we don't find it
+		operation = yaml.Lookup(fieldName)
 		if isSeq {
 			// The query path thinks this field should be a sequence;
 			// accept this hint for use later if the tag is NodeTagNull.
@@ -82,21 +100,25 @@ func (fltr Filter) field(obj *yaml.RNode) error {
 		}
 	case len(fltr.path) <= 1:
 		// create the field if it is missing: use the provided node kind
-		lookupField = yaml.LookupCreate(fltr.CreateKind, fieldName)
+		operation = yaml.LookupCreate(fltr.CreateKind, fieldName)
 		kind = fltr.CreateKind
 		tag = fltr.CreateTag
 	default:
 		// create the field if it is missing: must be a mapping node
-		lookupField = yaml.LookupCreate(yaml.MappingNode, fieldName)
+		operation = yaml.LookupCreate(yaml.MappingNode, fieldName)
 		kind = yaml.MappingNode
 		tag = yaml.NodeTagMap
 	}
 
 	// locate (or maybe create) the field
-	field, err := obj.Pipe(lookupField)
-	if err != nil || field == nil {
+	field, err := obj.Pipe(operation)
+	if err != nil {
 		return errors.WrapPrefixf(err, "fieldName: %s", fieldName)
 	}
+	if field == nil {
+		// No error if field not found.
+		return nil
+	}
 
 	// if the value exists, but is null and kind is set,
 	// then change it to the creation type
@@ -114,7 +136,7 @@ func (fltr Filter) field(obj *yaml.RNode) error {
 }
 
 // seq calls filter on all sequence elements
-func (fltr Filter) seq(obj *yaml.RNode) error {
+func (fltr Filter) handleSequence(obj *yaml.RNode) error {
 	if err := obj.VisitElements(func(node *yaml.RNode) error {
 		// recurse on each element -- re-allocating a Filter is
 		// not strictly required, but is more consistent with field
@@ -125,16 +147,14 @@ func (fltr Filter) seq(obj *yaml.RNode) error {
 		return errors.WrapPrefixf(err,
 			"visit traversal on path: %v", fltr.path)
 	}
-
 	return nil
 }
 
 // isSequenceField returns true if the path element is for a sequence field.
 // isSequence also returns the path element with the '[]' suffix trimmed
 func isSequenceField(name string) (string, bool) {
-	isSeq := strings.HasSuffix(name, "[]")
-	name = strings.TrimSuffix(name, "[]")
-	return name, isSeq
+	shorter := strings.TrimSuffix(name, "[]")
+	return shorter, shorter != name
 }
 
 // isMatchGVK returns true if the fs.GVK matches the obj GVK.
@@ -163,18 +183,3 @@ func isMatchGVK(fs types.FieldSpec, obj *yaml.RNode) (bool, error) {
 
 	return true, nil
 }
-
-func splitPath(path string) []string {
-	ps := strings.Split(path, "/")
-	var res []string
-	res = append(res, ps[0])
-	for i := 1; i < len(ps); i++ {
-		lastIndex := len(res) - 1
-		if strings.HasSuffix(res[lastIndex], "\\") {
-			res[lastIndex] = strings.TrimSuffix(res[lastIndex], "\\") + "/" + ps[i]
-		} else {
-			res = append(res, ps[i])
-		}
-	}
-	return res
-}

api/filters/fieldspec/fieldspec_test.go

@@ -15,206 +15,243 @@ import (
 	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
-type TestCase struct {
-	name      string
-	input     string
-	expected  string
-	filter    fieldspec.Filter
-	fieldSpec string
-	error     string
-}
-
-var tests = []TestCase{
-	{
-		name: "update",
-		fieldSpec: `
+func TestFilter_Filter(t *testing.T) {
+	testCases := map[string]struct {
+		input     string
+		expected  string
+		filter    fieldspec.Filter
+		fieldSpec string
+		error     string
+	}{
+		"path not found": {
+			fieldSpec: `
 path: a/b
 group: foo
 kind: Bar
 `,
-		input: `
+			input: `
+apiVersion: foo
+kind: Bar
+xxx:
+`,
+			expected: `
+apiVersion: foo
+kind: Bar
+xxx:
+`,
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
+		},
+		"empty path": {
+			fieldSpec: `
+group: foo
+kind: Bar
+`,
+			input: `
+apiVersion: foo
+kind: Bar
+xxx:
+`,
+			expected: `
+apiVersion: foo
+kind: Bar
+xxx:
+`,
+			error: `considering field '' of object
+apiVersion: foo
+kind: Bar
+xxx:
+: cannot set or create an empty field name`,
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
+		},
+
+		"update": {
+			fieldSpec: `
+path: a/b
+group: foo
+kind: Bar
+`,
+			input: `
 apiVersion: foo/v1beta1
 kind: Bar
 a:
   b: c
 `,
-		expected: `
+			expected: `
 apiVersion: foo/v1beta1
 kind: Bar
 a:
   b: e
 `,
-		filter: fieldspec.Filter{
-			SetValue: filtersutil.SetScalar("e"),
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
 		},
-	},
 
-	{
-		name: "update-kind-not-match",
-		fieldSpec: `
+		"update-kind-not-match": {
+			fieldSpec: `
 path: a/b
 group: foo
 kind: Bar1
 `,
-		input: `
+			input: `
 apiVersion: foo/v1beta1
 kind: Bar2
 a:
   b: c
 `,
-		expected: `
+			expected: `
 apiVersion: foo/v1beta1
 kind: Bar2
 a:
   b: c
 `,
-		filter: fieldspec.Filter{
-			SetValue: filtersutil.SetScalar("e"),
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
 		},
-	},
 
-	{
-		name: "update-group-not-match",
-		fieldSpec: `
+		"update-group-not-match": {
+			fieldSpec: `
 path: a/b
 group: foo1
 kind: Bar
 `,
-		input: `
+			input: `
 apiVersion: foo2/v1beta1
 kind: Bar
 a:
   b: c
 `,
-		expected: `
+			expected: `
 apiVersion: foo2/v1beta1
 kind: Bar
 a:
   b: c
 `,
-		filter: fieldspec.Filter{
-			SetValue: filtersutil.SetScalar("e"),
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
 		},
-	},
 
-	{
-		name: "update-version-not-match",
-		fieldSpec: `
+		"update-version-not-match": {
+			fieldSpec: `
 path: a/b
 group: foo
 version: v1beta1
 kind: Bar
 `,
-		input: `
+			input: `
 apiVersion: foo/v1beta2
 kind: Bar
 a:
   b: c
 `,
-		expected: `
+			expected: `
 apiVersion: foo/v1beta2
 kind: Bar
 a:
   b: c
 `,
-		filter: fieldspec.Filter{
-			SetValue: filtersutil.SetScalar("e"),
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
 		},
-	},
 
-	{
-		name: "bad-version",
-		fieldSpec: `
+		"bad-version": {
+			fieldSpec: `
 path: a/b
 group: foo
 version: v1beta1
 kind: Bar
 `,
-		input: `
+			input: `
 apiVersion: foo/v1beta2/something
 kind: Bar
 a:
   b: c
 `,
-		expected: `
+			expected: `
 apiVersion: foo/v1beta2/something
 kind: Bar
 a:
   b: c
 `,
-		filter: fieldspec.Filter{
-			SetValue: filtersutil.SetScalar("e"),
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
 		},
-	},
 
-	{
-		name: "bad-meta",
-		fieldSpec: `
+		"bad-meta": {
+			fieldSpec: `
 path: a/b
 group: foo
 version: v1beta1
 kind: Bar
 `,
-		input: `
+			input: `
 a:
   b: c
 `,
-		filter: fieldspec.Filter{
-			SetValue: filtersutil.SetScalar("e"),
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
+			error: "missing Resource metadata",
 		},
-		error: "missing Resource metadata",
-	},
 
-	{
-		name: "miss-match-type",
-		fieldSpec: `
+		"miss-match-type": {
+			fieldSpec: `
 path: a/b/c
 kind: Bar
 `,
-		input: `
+			input: `
 kind: Bar
 a:
   b: a
 `,
-		error: "obj 'kind: Bar\na:\n  b: a\n' at path 'a/b/c': " +
-			"expected sequence or mapping node",
-		filter: fieldspec.Filter{
-			SetValue: filtersutil.SetScalar("e"),
+			error: `considering field 'a/b/c' of object
+kind: Bar
+a:
+  b: a
+: expected sequence or mapping node`,
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
 		},
-	},
 
-	{
-		name: "add",
-		fieldSpec: `
+		"add": {
+			fieldSpec: `
 path: a/b/c/d
 group: foo
 create: true
 kind: Bar
 `,
-		input: `
+			input: `
 apiVersion: foo/v1beta1
 kind: Bar
 a: {}
 `,
-		expected: `
+			expected: `
 apiVersion: foo/v1beta1
 kind: Bar
 a: {b: {c: {d: e}}}
 `,
-		filter: fieldspec.Filter{
-			SetValue:   filtersutil.SetScalar("e"),
-			CreateKind: yaml.ScalarNode,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("e"),
+				CreateKind: yaml.ScalarNode,
+			},
 		},
-	},
 
-	{
-		name: "update-in-sequence",
-		fieldSpec: `
+		"update-in-sequence": {
+			fieldSpec: `
 path: a/b[]/c/d
 group: foo
 kind: Bar
 `,
-		input: `
+			input: `
 apiVersion: foo/v1beta1
 kind: Bar
 a:
@@ -222,7 +259,7 @@ a:
   - c:
       d: a
 `,
-		expected: `
+			expected: `
 apiVersion: foo/v1beta1
 kind: Bar
 a:
@@ -230,244 +267,237 @@ a:
   - c:
       d: e
 `,
-		filter: fieldspec.Filter{
-			SetValue: filtersutil.SetScalar("e"),
+			filter: fieldspec.Filter{
+				SetValue: filtersutil.SetScalar("e"),
+			},
 		},
-	},
 
-	// Don't create a sequence
-	{
-		name: "empty-sequence-no-create",
-		fieldSpec: `
+		// Don't create a sequence
+		"empty-sequence-no-create": {
+			fieldSpec: `
 path: a/b[]/c/d
 group: foo
 create: true
 kind: Bar
 `,
-		input: `
+			input: `
 apiVersion: foo/v1beta1
 kind: Bar
 a: {}
 `,
-		expected: `
+			expected: `
 apiVersion: foo/v1beta1
 kind: Bar
 a: {}
 `,
-		filter: fieldspec.Filter{
-			SetValue:   filtersutil.SetScalar("e"),
-			CreateKind: yaml.ScalarNode,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("e"),
+				CreateKind: yaml.ScalarNode,
+			},
 		},
-	},
 
-	// Create a new field for an element in a sequence
-	{
-		name: "empty-sequence-create",
-		fieldSpec: `
+		// Create a new field for an element in a sequence
+		"empty-sequence-create": {
+			fieldSpec: `
 path: a/b[]/c/d
 group: foo
 create: true
 kind: Bar
 `,
-		input: `
+			input: `
 apiVersion: foo/v1beta1
 kind: Bar
 a:
   b:
   - c: {}
 `,
-		expected: `
+			expected: `
 apiVersion: foo/v1beta1
 kind: Bar
 a:
   b:
   - c: {d: e}
 `,
-		filter: fieldspec.Filter{
-			SetValue:   filtersutil.SetScalar("e"),
-			CreateKind: yaml.ScalarNode,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("e"),
+				CreateKind: yaml.ScalarNode,
+			},
 		},
-	},
 
-	{
-		name: "group v1",
-		fieldSpec: `
+		"group v1": {
+			fieldSpec: `
 path: a/b
 group: v1
 create: true
 kind: Bar
 `,
-		input: `
+			input: `
 apiVersion: v1
 kind: Bar
 `,
-		expected: `
+			expected: `
 apiVersion: v1
 kind: Bar
 `,
-		filter: fieldspec.Filter{
-			SetValue:   filtersutil.SetScalar("e"),
-			CreateKind: yaml.ScalarNode,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("e"),
+				CreateKind: yaml.ScalarNode,
+			},
 		},
-	},
 
-	{
-		name: "version v1",
-		fieldSpec: `
+		"version v1": {
+			fieldSpec: `
 path: a/b
 version: v1
 create: true
 kind: Bar
 `,
-		input: `
+			input: `
 apiVersion: v1
 kind: Bar
 `,
-		expected: `
+			expected: `
 apiVersion: v1
 kind: Bar
 a:
   b: e
 `,
-		filter: fieldspec.Filter{
-			SetValue:   filtersutil.SetScalar("e"),
-			CreateKind: yaml.ScalarNode,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("e"),
+				CreateKind: yaml.ScalarNode,
+			},
 		},
-	},
-	{
-		name: "successfully set field on array entry no sequence hint",
-		fieldSpec: `
+
+		"successfully set field on array entry no sequence hint": {
+			fieldSpec: `
 path: spec/containers/image
 version: v1
 kind: Bar
 `,
-		input: `
+			input: `
 apiVersion: v1
 kind: Bar
 spec:
   containers:
   - image: foo
 `,
-		expected: `
+			expected: `
 apiVersion: v1
 kind: Bar
 spec:
   containers:
   - image: bar
 `,
-		filter: fieldspec.Filter{
-			SetValue:   filtersutil.SetScalar("bar"),
-			CreateKind: yaml.ScalarNode,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("bar"),
+				CreateKind: yaml.ScalarNode,
+			},
 		},
-	},
-	{
-		name: "successfully set field on array entry with sequence hint",
-		fieldSpec: `
+
+		"successfully set field on array entry with sequence hint": {
+			fieldSpec: `
 path: spec/containers[]/image
 version: v1
 kind: Bar
 `,
-		input: `
+			input: `
 apiVersion: v1
 kind: Bar
 spec:
   containers:
   - image: foo
 `,
-		expected: `
+			expected: `
 apiVersion: v1
 kind: Bar
 spec:
   containers:
   - image: bar
 `,
-		filter: fieldspec.Filter{
-			SetValue:   filtersutil.SetScalar("bar"),
-			CreateKind: yaml.ScalarNode,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("bar"),
+				CreateKind: yaml.ScalarNode,
+			},
 		},
-	},
-	{
-		name: "failure to set field on array entry with sequence hint in path",
-		fieldSpec: `
+		"failure to set field on array entry with sequence hint in path": {
+			fieldSpec: `
 path: spec/containers[]/image
 version: v1
 kind: Bar
 `,
-		input: `
+			input: `
 apiVersion: v1
 kind: Bar
 spec:
   containers:
 `,
-		expected: `
+			expected: `
 apiVersion: v1
 kind: Bar
 spec:
   containers: []
 `,
-		filter: fieldspec.Filter{
-			SetValue:   filtersutil.SetScalar("bar"),
-			CreateKind: yaml.ScalarNode,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("bar"),
+				CreateKind: yaml.ScalarNode,
+			},
 		},
-	},
-	{
-		name: "failure to set field on array entry, no sequence hint in path",
-		fieldSpec: `
+
+		"failure to set field on array entry, no sequence hint in path": {
+			fieldSpec: `
 path: spec/containers/image
 version: v1
 kind: Bar
 `,
-		input: `
+			input: `
 apiVersion: v1
 kind: Bar
 spec:
   containers:
 `,
-		expected: `
+			expected: `
 apiVersion: v1
 kind: Bar
 spec:
   containers:
 `,
-		filter: fieldspec.Filter{
-			SetValue:   filtersutil.SetScalar("bar"),
-			CreateKind: yaml.ScalarNode,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("bar"),
+				CreateKind: yaml.ScalarNode,
+			},
 		},
-	},
-	{
-		name: "filedname with slash '/'",
-		fieldSpec: `
+		"fieldname with slash '/'": {
+			fieldSpec: `
 path: a/b\/c/d
 version: v1
 kind: Bar
 `,
-		input: `
+			input: `
 apiVersion: v1
 kind: Bar
 a:
   b/c:
     d: foo
 `,
-		expected: `
+			expected: `
 apiVersion: v1
 kind: Bar
 a:
   b/c:
     d: bar
 `,
-		filter: fieldspec.Filter{
-			SetValue:   filtersutil.SetScalar("bar"),
-			CreateKind: yaml.ScalarNode,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("bar"),
+				CreateKind: yaml.ScalarNode,
+			},
 		},
-	},
-	{
-		name: "filedname with multiple '/'",
-		fieldSpec: `
+		"fieldname with multiple '/'": {
+			fieldSpec: `
 path: a/b\/c/d\/e/f
 version: v1
 kind: Bar
 `,
-		input: `
+			input: `
 apiVersion: v1
 kind: Bar
 a:
@@ -475,7 +505,7 @@ a:
     d/e:
       f: foo
 `,
-		expected: `
+			expected: `
 apiVersion: v1
 kind: Bar
 a:
@@ -483,25 +513,24 @@ a:
     d/e:
       f: bar
 `,
-		filter: fieldspec.Filter{
-			SetValue:   filtersutil.SetScalar("bar"),
-			CreateKind: yaml.ScalarNode,
+			filter: fieldspec.Filter{
+				SetValue:   filtersutil.SetScalar("bar"),
+				CreateKind: yaml.ScalarNode,
+			},
 		},
-	},
-}
+	}
 
-func TestFilter_Filter(t *testing.T) {
-	for i := range tests {
-		test := tests[i]
-		t.Run(test.name, func(t *testing.T) {
-			err := yaml.Unmarshal([]byte(test.fieldSpec), &test.filter.FieldSpec)
+	for n := range testCases {
+		tc := testCases[n]
+		t.Run(n, func(t *testing.T) {
+			err := yaml.Unmarshal([]byte(tc.fieldSpec), &tc.filter.FieldSpec)
 			if !assert.NoError(t, err) {
 				t.FailNow()
 			}
 
 			out := &bytes.Buffer{}
 			rw := &kio.ByteReadWriter{
-				Reader:                bytes.NewBufferString(test.input),
+				Reader:                bytes.NewBufferString(tc.input),
 				Writer:                out,
 				OmitReaderAnnotations: true,
 			}
@@ -509,11 +538,11 @@ func TestFilter_Filter(t *testing.T) {
 			// run the filter
 			err = kio.Pipeline{
 				Inputs:  []kio.Reader{rw},
-				Filters: []kio.Filter{kio.FilterAll(test.filter)},
+				Filters: []kio.Filter{kio.FilterAll(tc.filter)},
 				Outputs: []kio.Writer{rw},
 			}.Execute()
-			if test.error != "" {
-				if !assert.EqualError(t, err, test.error) {
+			if tc.error != "" {
+				if !assert.EqualError(t, err, tc.error) {
 					t.FailNow()
 				}
 				// stop rest of test
@@ -526,7 +555,7 @@ func TestFilter_Filter(t *testing.T) {
 
 			// check results
 			if !assert.Equal(t,
-				strings.TrimSpace(test.expected),
+				strings.TrimSpace(tc.expected),
 				strings.TrimSpace(out.String())) {
 				t.FailNow()
 			}

api/filters/filtersutil/filtersutil.go

@@ -1,21 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package filtersutil
-
-import (
-	"sort"
-)
-
-// SortedMapKeys returns a sorted slice of keys to the given map.
-// Writing this function never gets old.
-func SortedMapKeys(m map[string]string) []string {
-	keys := make([]string, len(m))
-	i := 0
-	for k := range m {
-		keys[i] = k
-		i++
-	}
-	sort.Strings(keys)
-	return keys
-}

api/filters/labels/labels.go

@@ -25,7 +25,7 @@ type Filter struct {
 var _ kio.Filter = Filter{}
 
 func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
-	keys := filtersutil.SortedMapKeys(f.Labels)
+	keys := yaml.SortedMapKeys(f.Labels)
 	_, err := kio.FilterAll(yaml.FilterFunc(
 		func(node *yaml.RNode) (*yaml.RNode, error) {
 			for _, k := range keys {

api/filters/nameref/nameref.go

@@ -1,107 +1,190 @@
 package nameref
 
 import (
-	"encoding/json"
 	"fmt"
 	"strings"
 
+	"github.com/pkg/errors"
 	"sigs.k8s.io/kustomize/api/filters/fieldspec"
-	"sigs.k8s.io/kustomize/api/filters/filtersutil"
 	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/resource"
 	"sigs.k8s.io/kustomize/api/types"
-	kyaml_filtersutil "sigs.k8s.io/kustomize/kyaml/filtersutil"
 	"sigs.k8s.io/kustomize/kyaml/kio"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
-// Filter will update the name reference
+// Filter updates a name references.
 type Filter struct {
-	FieldSpec          types.FieldSpec `json:"fieldSpec,omitempty" yaml:"fieldSpec,omitempty"`
-	Referrer           *resource.Resource
-	Target             resid.Gvk
+	// Referrer refers to another resource X by X's name.
+	// E.g. A Deployment can refer to a ConfigMap.
+	// The Deployment is the Referrer,
+	// the ConfigMap is the ReferralTarget.
+	// This filter seeks to repair the reference in Deployment, given
+	// that the ConfigMap's name may have changed.
+	Referrer *resource.Resource
+
+	// NameFieldToUpdate is the field in the Referrer
+	// that holds the name requiring an update.
+	// This is the field to write.
+	NameFieldToUpdate types.FieldSpec
+
+	// ReferralTarget is the source of the new value for
+	// the name, always in the 'metadata/name' field.
+	// This is the field to read.
+	ReferralTarget resid.Gvk
+
+	// Set of resources to scan to find the ReferralTarget.
 	ReferralCandidates resmap.ResMap
-	isRoleRef          bool
 }
 
+// At time of writing, in practice this is called with a slice with only
+// one entry, the node also referred to be the resource in the Referrer field.
 func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
 	return kio.FilterAll(yaml.FilterFunc(f.run)).Filter(nodes)
 }
 
+// The node passed in here is the same node as held in Referrer;
+// that's how the referrer's name field is updated.
+// Currently, however, this filter still needs the extra methods on Referrer
+// to consult things like the resource Id, its namespace, etc.
+// TODO(3455): No filter should use the Resource api; all information
+// about names should come from annotations, with helper methods
+// on the RNode object.  Resource should get stupider, RNode smarter.
 func (f Filter) run(node *yaml.RNode) (*yaml.RNode, error) {
-	err := node.PipeE(fieldspec.Filter{
-		FieldSpec: f.FieldSpec,
+	if err := f.confirmNodeMatchesReferrer(node); err != nil {
+		// sanity check.
+		return nil, err
+	}
+	if err := node.PipeE(fieldspec.Filter{
+		FieldSpec: f.NameFieldToUpdate,
 		SetValue:  f.set,
-	})
-	return node, err
+	}); err != nil {
+		return nil, errors.Wrapf(
+			err, "updating name reference in '%s' field of '%s'",
+			f.NameFieldToUpdate.Path, f.Referrer.CurId().String())
+	}
+	return node, nil
 }
 
+// This function is called on the node found at FieldSpec.Path.
+// It's some node in the Referrer.
 func (f Filter) set(node *yaml.RNode) error {
 	if yaml.IsMissingOrNull(node) {
 		return nil
 	}
-	if strings.HasSuffix(f.FieldSpec.Path, "roleRef/name") {
-		f.isRoleRef = true
-	}
 	switch node.YNode().Kind {
 	case yaml.ScalarNode:
 		return f.setScalar(node)
 	case yaml.MappingNode:
-		// Kind: ValidatingWebhookConfiguration
-		// FieldSpec is webhooks/clientConfig/service
 		return f.setMapping(node)
 	case yaml.SequenceNode:
-		return f.setSequence(node)
+		return applyFilterToSeq(seqFilter{
+			setScalarFn:  f.setScalar,
+			setMappingFn: f.setMapping,
+		}, node)
 	default:
-		return fmt.Errorf(
-			"node is expected to be either a string or a slice of string or a map of string")
+		return fmt.Errorf("node must be a scalar, sequence or map")
 	}
 }
 
-func (f Filter) setSequence(node *yaml.RNode) error {
-	return applyFilterToSeq(seqFilter{
-		setScalarFn:  f.setScalar,
-		setMappingFn: f.setMapping,
-	}, node)
+// This method used when NameFieldToUpdate doesn't lead to
+// one scalar field (typically called 'name'), but rather
+// leads to a map field (called anything). In this case we
+// must complete the field path, looking for both  a 'name'
+// and a 'namespace' field to help select the proper
+// ReferralTarget to read the name and namespace from.
+func (f Filter) setMapping(node *yaml.RNode) error {
+	if node.YNode().Kind != yaml.MappingNode {
+		return fmt.Errorf("expect a mapping node")
+	}
+	nameNode, err := node.Pipe(yaml.FieldMatcher{Name: "name"})
+	if err != nil {
+		return errors.Wrap(err, "trying to match 'name' field")
+	}
+	if nameNode == nil {
+		// This is a _configuration_ error; the field path
+		// specified in NameFieldToUpdate.Path doesn't resolve
+		// to a map with a 'name' field, so we have no idea what
+		// field to update with a new name.
+		return fmt.Errorf("path config error; no 'name' field in node")
+	}
+	candidates, err := f.filterMapCandidatesByNamespace(node)
+	if err != nil {
+		return err
+	}
+	oldName := nameNode.YNode().Value
+	referral, err := f.selectReferral(oldName, candidates)
+	if err != nil || referral == nil {
+		// Nil referral means nothing to do.
+		return err
+	}
+	f.recordTheReferral(referral)
+	if referral.GetName() == oldName && referral.GetNamespace() == "" {
+		// The name has not changed, nothing to do.
+		return nil
+	}
+	if err = node.PipeE(yaml.FieldSetter{
+		Name:        "name",
+		StringValue: referral.GetName(),
+	}); err != nil {
+		return err
+	}
+	if referral.GetNamespace() == "" {
+		// Don't write an empty string into the namespace field, as
+		// it should not replace the value "default".  The empty
+		// string is handled as a wild card here, not as an implicit
+		// specification of the "default" k8s namespace.
+		return nil
+	}
+	return node.PipeE(yaml.FieldSetter{
+		Name:        "namespace",
+		StringValue: referral.GetNamespace(),
+	})
 }
 
-func (f Filter) setMapping(node *yaml.RNode) error {
-	return setNameAndNs(
-		node,
-		f.Referrer,
-		f.Target,
-		f.ReferralCandidates,
-		f.isRoleRef,
-	)
+func (f Filter) filterMapCandidatesByNamespace(
+	node *yaml.RNode) ([]*resource.Resource, error) {
+	namespaceNode, err := node.Pipe(yaml.FieldMatcher{Name: "namespace"})
+	if err != nil {
+		return nil, errors.Wrap(err, "trying to match 'namespace' field")
+	}
+	if namespaceNode == nil {
+		return f.ReferralCandidates.Resources(), nil
+	}
+	namespace := namespaceNode.YNode().Value
+	nsMap := f.ReferralCandidates.GroupedByOriginalNamespace()
+	if candidates, ok := nsMap[namespace]; ok {
+		return candidates, nil
+	}
+	nsMap = f.ReferralCandidates.GroupedByCurrentNamespace()
+	// This could be nil, or an empty list.
+	return nsMap[namespace], nil
 }
 
 func (f Filter) setScalar(node *yaml.RNode) error {
-	newValue, err := getSimpleNameField(
-		node.YNode().Value,
-		f.Referrer,
-		f.Target,
-		f.ReferralCandidates,
-		f.ReferralCandidates.Resources(),
-		f.isRoleRef,
-	)
-	if err != nil {
+	referral, err := f.selectReferral(
+		node.YNode().Value, f.ReferralCandidates.Resources())
+	if err != nil || referral == nil {
+		// Nil referral means nothing to do.
 		return err
 	}
-	err = filtersutil.SetScalar(newValue)(node)
-	if err != nil {
-		return err
+	f.recordTheReferral(referral)
+	if referral.GetName() == node.YNode().Value {
+		// The name has not changed, nothing to do.
+		return nil
 	}
-	return nil
+	return node.PipeE(yaml.FieldSetter{StringValue: referral.GetName()})
+}
+
+// In the resource, make a note that it is referred to by the Referrer.
+func (f Filter) recordTheReferral(referral *resource.Resource) {
+	referral.AppendRefBy(f.Referrer.CurId())
 }
 
 // getRoleRefGvk returns a Gvk in the roleRef field. Return error
 // if the roleRef, roleRef/apiGroup or roleRef/kind is missing.
-func getRoleRefGvk(res json.Marshaler) (*resid.Gvk, error) {
-	n, err := kyaml_filtersutil.GetRNode(res)
-	if err != nil {
-		return nil, err
-	}
+func getRoleRefGvk(n *yaml.RNode) (*resid.Gvk, error) {
 	roleRef, err := n.Pipe(yaml.Lookup("roleRef"))
 	if err != nil {
 		return nil, err
@@ -114,14 +197,16 @@ func getRoleRefGvk(res json.Marshaler) (*resid.Gvk, error) {
 		return nil, err
 	}
 	if apiGroup.IsNil() {
-		return nil, fmt.Errorf("apiGroup cannot be found in roleRef %s", roleRef.MustString())
+		return nil, fmt.Errorf(
+			"apiGroup cannot be found in roleRef %s", roleRef.MustString())
 	}
 	kind, err := roleRef.Pipe(yaml.Lookup("kind"))
 	if err != nil {
 		return nil, err
 	}
 	if kind.IsNil() {
-		return nil, fmt.Errorf("kind cannot be found in roleRef %s", roleRef.MustString())
+		return nil, fmt.Errorf(
+			"kind cannot be found in roleRef %s", roleRef.MustString())
 	}
 	return &resid.Gvk{
 		Group: apiGroup.YNode().Value,
@@ -129,169 +214,183 @@ func getRoleRefGvk(res json.Marshaler) (*resid.Gvk, error) {
 	}, nil
 }
 
-func filterReferralCandidates(
-	referrer *resource.Resource,
-	matches []*resource.Resource,
-	target resid.Gvk,
-) []*resource.Resource {
-	var ret []*resource.Resource
-	for _, m := range matches {
-		// If target kind is not ServiceAccount, we shouldn't consider condidates which
-		// doesn't have same namespace.
-		if target.Kind != "ServiceAccount" && m.GetNamespace() != referrer.GetNamespace() {
-			continue
+// sieveFunc returns true if the resource argument satisfies some criteria.
+type sieveFunc func(*resource.Resource) bool
+
+// doSieve uses a function to accept or ignore resources from a list.
+// If list is nil, returns immediately.
+// It's a filter obviously, but that term is overloaded here.
+func doSieve(list []*resource.Resource, fn sieveFunc) (s []*resource.Resource) {
+	for _, r := range list {
+		if fn(r) {
+			s = append(s, r)
 		}
-		if !referrer.PrefixesSuffixesEquals(m) {
-			continue
-		}
-		ret = append(ret, m)
 	}
-	return ret
+	return
 }
 
-// selectReferral picks the referral among a subset of candidates.
-// It returns the current name and namespace of the selected candidate.
-// Note that the content of the referricalCandidateSubset slice is most of the time
-// identical to the referralCandidates resmap. Still in some cases, such
-// as ClusterRoleBinding, the subset only contains the resources of a specific
-// namespace.
-func selectReferral(
-	oldName string,
-	referrer *resource.Resource,
-	target resid.Gvk,
-	referralCandidates resmap.ResMap,
-	referralCandidateSubset []*resource.Resource,
-	isRoleRef bool) (string, string, error) {
-	var roleRefGvk *resid.Gvk
-	if isRoleRef {
-		var err error
-		roleRefGvk, err = getRoleRefGvk(referrer)
-		if err != nil {
-			return "", "", err
-		}
-	}
-	for _, res := range referralCandidateSubset {
-		id := res.OrgId()
-		// If the we are processing a roleRef, the apiGroup and Kind in the
-		// roleRef are needed to be considered.
-		if (!isRoleRef || id.IsSelected(roleRefGvk)) &&
-			id.IsSelected(&target) && res.GetOriginalName() == oldName {
-			matches := referralCandidates.GetMatchingResourcesByOriginalId(id.Equals)
-			// If there's more than one match,
-			// filter the matches by prefix and suffix
-			if len(matches) > 1 {
-				filteredMatches := filterReferralCandidates(referrer, matches, target)
-				if len(filteredMatches) > 1 {
-					return "", "", fmt.Errorf(
-						"multiple matches for %s:\n  %v",
-						id, getIds(filteredMatches))
-				}
-				// Check is the match the resource we are working on
-				if len(filteredMatches) == 0 || res != filteredMatches[0] {
-					continue
-				}
+func acceptAll(r *resource.Resource) bool {
+	return true
+}
+
+func previousNameMatches(name string) sieveFunc {
+	return func(r *resource.Resource) bool {
+		for _, id := range r.PrevIds() {
+			if id.Name == name {
+				return true
 			}
-			// In the resource, note that it is referenced
-			// by the referrer.
-			res.AppendRefBy(referrer.CurId())
-			// Return transformed name of the object,
-			// complete with prefixes, hashes, etc.
-			return res.GetName(), res.GetNamespace(), nil
+		}
+		return false
+	}
+}
+
+func previousIdSelectedByGvk(gvk *resid.Gvk) sieveFunc {
+	return func(r *resource.Resource) bool {
+		for _, id := range r.PrevIds() {
+			if id.IsSelected(gvk) {
+				return true
+			}
+		}
+		return false
+	}
+}
+
+// If the we are updating a 'roleRef/name' field, the 'apiGroup' and 'kind'
+// fields in the same 'roleRef' map must be considered.
+// If either object is cluster-scoped (!IsNamespaceableKind), there
+// can be a referral.
+// E.g. a RoleBinding (which exists in a namespace) can refer
+// to a ClusterRole (cluster-scoped) object.
+// https://kubernetes.io/docs/reference/access-authn-authz/rbac/#role-and-clusterrole
+// Likewise, a ClusterRole can refer to a Secret (in a namespace).
+// Objects in different namespaces generally cannot refer to other
+// with some exceptions (e.g. RoleBinding and ServiceAccount are both
+// namespaceable, but the former can refer to accounts in other namespaces).
+func (f Filter) roleRefFilter() sieveFunc {
+	if !strings.HasSuffix(f.NameFieldToUpdate.Path, "roleRef/name") {
+		return acceptAll
+	}
+	roleRefGvk, err := getRoleRefGvk(f.Referrer.AsRNode())
+	if err != nil {
+		return acceptAll
+	}
+	return previousIdSelectedByGvk(roleRefGvk)
+}
+
+func prefixSuffixEquals(other resource.ResCtx) sieveFunc {
+	return func(r *resource.Resource) bool {
+		return r.PrefixesSuffixesEquals(other)
+	}
+}
+
+func (f Filter) sameCurrentNamespaceAsReferrer() sieveFunc {
+	referrerCurId := f.Referrer.CurId()
+	if !referrerCurId.IsNamespaceableKind() {
+		// If the referrer is cluster-scoped, let anything through.
+		return acceptAll
+	}
+	return func(r *resource.Resource) bool {
+		if !r.CurId().IsNamespaceableKind() {
+			// Allow cluster-scoped through.
+			return true
+		}
+		if r.GetKind() == "ServiceAccount" {
+			// Allow service accounts through, even though they
+			// are in a namespace.  A RoleBinding in another namespace
+			// can reference them.
+			return true
+		}
+		return referrerCurId.IsNsEquals(r.CurId())
+	}
+}
+
+// selectReferral picks the best referral from a list of candidates.
+func (f Filter) selectReferral(
+	// The name referral that may need to be updated.
+	oldName string,
+	candidates []*resource.Resource) (*resource.Resource, error) {
+	candidates = doSieve(candidates, previousNameMatches(oldName))
+	candidates = doSieve(candidates, previousIdSelectedByGvk(&f.ReferralTarget))
+	candidates = doSieve(candidates, f.roleRefFilter())
+	candidates = doSieve(candidates, f.sameCurrentNamespaceAsReferrer())
+	if len(candidates) == 1 {
+		return candidates[0], nil
+	}
+	candidates = doSieve(candidates, prefixSuffixEquals(f.Referrer))
+	if len(candidates) == 1 {
+		return candidates[0], nil
+	}
+	if len(candidates) == 0 {
+		return nil, nil
+	}
+	if allNamesAreTheSame(candidates) {
+		// Just take the first one.
+		return candidates[0], nil
+	}
+	ids := getIds(candidates)
+	f.failureDetails(candidates)
+	return nil, fmt.Errorf(" found multiple possible referrals: %s", ids)
+}
+
+func (f Filter) failureDetails(resources []*resource.Resource) {
+	fmt.Printf(
+		"\n**** Too many possible referral targets to referrer:\n%s\n",
+		f.Referrer.MustYaml())
+	for i, r := range resources {
+		fmt.Printf(
+			"--- possible referral %d:\n%s", i, r.MustYaml())
+		fmt.Println("------")
+	}
+}
+
+func allNamesAreTheSame(resources []*resource.Resource) bool {
+	name := resources[0].GetName()
+	for i := 1; i < len(resources); i++ {
+		if name != resources[i].GetName() {
+			return false
 		}
 	}
-
-	return oldName, "", nil
+	return true
 }
 
-// utility function to replace a simple string by the new name
-func getSimpleNameField(
-	oldName string,
-	referrer *resource.Resource,
-	target resid.Gvk,
-	referralCandidates resmap.ResMap,
-	referralCandidateSubset []*resource.Resource,
-	isRoleRef bool) (string, error) {
-
-	newName, _, err := selectReferral(oldName, referrer, target,
-		referralCandidates, referralCandidateSubset, isRoleRef)
-
-	return newName, err
-}
-
-func getIds(rs []*resource.Resource) []string {
+func getIds(rs []*resource.Resource) string {
 	var result []string
 	for _, r := range rs {
-		result = append(result, r.CurId().String()+"\n")
+		result = append(result, r.CurId().String())
 	}
-	return result
+	return strings.Join(result, ", ")
 }
 
-// utility function to replace name field within a map RNode
-// and leverage the namespace field.
-func setNameAndNs(
-	in *yaml.RNode,
-	referrer *resource.Resource,
-	target resid.Gvk,
-	referralCandidates resmap.ResMap,
-	isRoleRef bool) error {
-
-	if in.YNode().Kind != yaml.MappingNode {
-		return fmt.Errorf("expect a mapping node")
-	}
-
-	// Get name field
-	nameNode, err := in.Pipe(yaml.FieldMatcher{
-		Name: "name",
-	})
-	if err != nil || nameNode == nil {
-		return fmt.Errorf("cannot find field 'name' in node")
-	}
-
-	// Get namespace field
-	namespaceNode, err := in.Pipe(yaml.FieldMatcher{
-		Name: "namespace",
-	})
-	if err != nil {
-		return fmt.Errorf("error when find field 'namespace'")
-	}
-
-	// check is namespace matched
-	// name will bot be updated if the namespace doesn't match
-	subset := referralCandidates.Resources()
-	if namespaceNode != nil {
-		namespace := namespaceNode.YNode().Value
-		bynamespace := referralCandidates.GroupedByOriginalNamespace()
-		if _, ok := bynamespace[namespace]; !ok {
-			return nil
-		}
-		subset = bynamespace[namespace]
-	}
-
-	oldName := nameNode.YNode().Value
-	newname, newnamespace, err := selectReferral(oldName, referrer, target,
-		referralCandidates, subset, isRoleRef)
-	if err != nil {
-		return err
-	}
-
-	if (newname == oldName) && (newnamespace == "") {
-		// no candidate found.
-		return nil
-	}
-
-	// set name
-	in.Pipe(yaml.FieldSetter{
-		Name:        "name",
-		StringValue: newname,
-	})
-	if newnamespace != "" {
-		// We don't want value "" to replace value "default" since
-		// the empty string is handled as a wild card here not default namespace
-		// by kubernetes.
-		in.Pipe(yaml.FieldSetter{
-			Name:        "namespace",
-			StringValue: newnamespace,
-		})
+func checkEqual(k, a, b string) error {
+	if a != b {
+		return fmt.Errorf(
+			"node-referrerOriginal '%s' mismatch '%s' != '%s'",
+			k, a, b)
+	}
+	return nil
+}
+
+func (f Filter) confirmNodeMatchesReferrer(node *yaml.RNode) error {
+	meta, err := node.GetMeta()
+	if err != nil {
+		return err
+	}
+	gvk := f.Referrer.GetGvk()
+	if err = checkEqual(
+		"APIVersion", meta.APIVersion, gvk.ApiVersion()); err != nil {
+		return err
+	}
+	if err = checkEqual(
+		"Kind", meta.Kind, gvk.Kind); err != nil {
+		return err
+	}
+	if err = checkEqual(
+		"Name", meta.Name, f.Referrer.GetName()); err != nil {
+		return err
+	}
+	if err = checkEqual(
+		"Namespace", meta.Namespace, f.Referrer.GetNamespace()); err != nil {
+		return err
 	}
 	return nil
 }

api/filters/nameref/nameref_test.go

@@ -14,14 +14,14 @@ import (
 
 func TestNamerefFilter(t *testing.T) {
 	testCases := map[string]struct {
-		input         string
-		candidates    string
-		expected      string
-		filter        Filter
-		originalNames []string
+		referrerOriginal string
+		candidates       string
+		referrerFinal    string
+		filter           Filter
+		originalNames    []string
 	}{
 		"simple scalar": {
-			input: `
+			referrerOriginal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -40,8 +40,8 @@ kind: NotSecret
 metadata:
   name: newName2
 `,
-			originalNames: []string{"oldName", ""},
-			expected: `
+			originalNames: []string{"oldName", "newName2"},
+			referrerFinal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -50,8 +50,8 @@ ref:
   name: newName
 `,
 			filter: Filter{
-				FieldSpec: types.FieldSpec{Path: "ref/name"},
-				Target: resid.Gvk{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
 					Group:   "apps",
 					Version: "v1",
 					Kind:    "Secret",
@@ -59,7 +59,7 @@ ref:
 			},
 		},
 		"sequence": {
-			input: `
+			referrerOriginal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -79,8 +79,8 @@ kind: NotSecret
 metadata:
   name: newName2
 `,
-			originalNames: []string{"oldName1", ""},
-			expected: `
+			originalNames: []string{"oldName1", "newName2"},
+			referrerFinal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -90,8 +90,8 @@ seq:
 - oldName2
 `,
 			filter: Filter{
-				FieldSpec: types.FieldSpec{Path: "seq"},
-				Target: resid.Gvk{
+				NameFieldToUpdate: types.FieldSpec{Path: "seq"},
+				ReferralTarget: resid.Gvk{
 					Group:   "apps",
 					Version: "v1",
 					Kind:    "Secret",
@@ -99,7 +99,7 @@ seq:
 			},
 		},
 		"mapping": {
-			input: `
+			referrerOriginal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -118,8 +118,8 @@ kind: NotSecret
 metadata:
   name: newName2
 `,
-			originalNames: []string{"oldName", ""},
-			expected: `
+			originalNames: []string{"oldName", "newName2"},
+			referrerFinal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -128,8 +128,8 @@ map:
   name: newName
 `,
 			filter: Filter{
-				FieldSpec: types.FieldSpec{Path: "map"},
-				Target: resid.Gvk{
+				NameFieldToUpdate: types.FieldSpec{Path: "map"},
+				ReferralTarget: resid.Gvk{
 					Group:   "apps",
 					Version: "v1",
 					Kind:    "Secret",
@@ -137,40 +137,47 @@ map:
 			},
 		},
 		"mapping with namespace": {
-			input: `
+			referrerOriginal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: dep
+  namespace: someNs
 map:
   name: oldName
-  namespace: oldNs
+  namespace: someNs
 `,
 			candidates: `
 apiVersion: apps/v1
 kind: Secret
 metadata:
   name: newName
-  namespace: oldNs
+  namespace: someNs
 ---
 apiVersion: apps/v1
 kind: NotSecret
 metadata:
   name: newName2
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: thirdName
 `,
-			originalNames: []string{"oldName", ""},
-			expected: `
+			originalNames: []string{"oldName", "oldName", "oldName"},
+			referrerFinal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: dep
+  namespace: someNs
 map:
   name: newName
-  namespace: oldNs
+  namespace: someNs
 `,
 			filter: Filter{
-				FieldSpec: types.FieldSpec{Path: "map"},
-				Target: resid.Gvk{
+				NameFieldToUpdate: types.FieldSpec{Path: "map"},
+				ReferralTarget: resid.Gvk{
 					Group:   "apps",
 					Version: "v1",
 					Kind:    "Secret",
@@ -178,7 +185,7 @@ map:
 			},
 		},
 		"null value": {
-			input: `
+			referrerOriginal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -197,8 +204,8 @@ kind: NotSecret
 metadata:
   name: newName2
 `,
-			originalNames: []string{"oldName", ""},
-			expected: `
+			originalNames: []string{"oldName", "newName2"},
+			referrerFinal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -207,8 +214,8 @@ map:
   name: null
 `,
 			filter: Filter{
-				FieldSpec: types.FieldSpec{Path: "map"},
-				Target: resid.Gvk{
+				NameFieldToUpdate: types.FieldSpec{Path: "map"},
+				ReferralTarget: resid.Gvk{
 					Group:   "apps",
 					Version: "v1",
 					Kind:    "Secret",
@@ -220,13 +227,13 @@ map:
 	for tn, tc := range testCases {
 		t.Run(tn, func(t *testing.T) {
 			factory := provider.NewDefaultDepProvider().GetResourceFactory()
-			referrer, err := factory.FromBytes([]byte(tc.input))
+			referrer, err := factory.FromBytes([]byte(tc.referrerOriginal))
 			if err != nil {
 				t.Fatal(err)
 			}
 			tc.filter.Referrer = referrer
 
-			resMapFactory := resmap.NewFactory(factory, nil)
+			resMapFactory := resmap.NewFactory(factory)
 			candidatesRes, err := factory.SliceFromBytesWithNames(
 				tc.originalNames, []byte(tc.candidates))
 			if err != nil {
@@ -236,10 +243,10 @@ map:
 			candidates := resMapFactory.FromResourceSlice(candidatesRes)
 			tc.filter.ReferralCandidates = candidates
 
+			result := filtertest_test.RunFilter(t, tc.referrerOriginal, tc.filter)
 			if !assert.Equal(t,
-				strings.TrimSpace(tc.expected),
-				strings.TrimSpace(
-					filtertest_test.RunFilter(t, tc.input, tc.filter))) {
+				strings.TrimSpace(tc.referrerFinal),
+				strings.TrimSpace(result)) {
 				t.FailNow()
 			}
 		})
@@ -248,14 +255,14 @@ map:
 
 func TestNamerefFilterUnhappy(t *testing.T) {
 	testCases := map[string]struct {
-		input         string
-		candidates    string
-		expected      string
-		filter        Filter
-		originalNames []string
+		referrerOriginal string
+		candidates       string
+		referrerFinal    string
+		filter           Filter
+		originalNames    []string
 	}{
 		"multiple match": {
-			input: `
+			referrerOriginal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -275,10 +282,10 @@ metadata:
   name: newName2
 `,
 			originalNames: []string{"oldName", "oldName"},
-			expected:      "",
+			referrerFinal: "",
 			filter: Filter{
-				FieldSpec: types.FieldSpec{Path: "ref/name"},
-				Target: resid.Gvk{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
 					Group:   "apps",
 					Version: "v1",
 					Kind:    "Secret",
@@ -286,7 +293,7 @@ metadata:
 			},
 		},
 		"no name": {
-			input: `
+			referrerOriginal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -306,10 +313,10 @@ metadata:
   name: newName2
 `,
 			originalNames: []string{"oldName", "oldName"},
-			expected:      "",
+			referrerFinal: "",
 			filter: Filter{
-				FieldSpec: types.FieldSpec{Path: "ref"},
-				Target: resid.Gvk{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref"},
+				ReferralTarget: resid.Gvk{
 					Group:   "apps",
 					Version: "v1",
 					Kind:    "Secret",
@@ -321,13 +328,13 @@ metadata:
 	for tn, tc := range testCases {
 		t.Run(tn, func(t *testing.T) {
 			factory := provider.NewDefaultDepProvider().GetResourceFactory()
-			referrer, err := factory.FromBytes([]byte(tc.input))
+			referrer, err := factory.FromBytes([]byte(tc.referrerOriginal))
 			if err != nil {
 				t.Fatal(err)
 			}
 			tc.filter.Referrer = referrer
 
-			resMapFactory := resmap.NewFactory(factory, nil)
+			resMapFactory := resmap.NewFactory(factory)
 			candidatesRes, err := factory.SliceFromBytesWithNames(
 				tc.originalNames, []byte(tc.candidates))
 			if err != nil {
@@ -337,11 +344,11 @@ metadata:
 			candidates := resMapFactory.FromResourceSlice(candidatesRes)
 			tc.filter.ReferralCandidates = candidates
 
-			_, err = filtertest_test.RunFilterE(t, tc.input, tc.filter)
+			_, err = filtertest_test.RunFilterE(t, tc.referrerOriginal, tc.filter)
 			if err == nil {
 				t.Fatalf("expect an error")
 			}
-			if tc.expected != "" && !assert.EqualError(t, err, tc.expected) {
+			if tc.referrerFinal != "" && !assert.EqualError(t, err, tc.referrerFinal) {
 				t.FailNow()
 			}
 		})
@@ -350,19 +357,19 @@ metadata:
 
 func TestCandidatesWithDifferentPrefixSuffix(t *testing.T) {
 	testCases := map[string]struct {
-		input         string
-		candidates    string
-		expected      string
-		filter        Filter
-		originalNames []string
-		prefix        []string
-		suffix        []string
-		inputPrefix   string
-		inputSuffix   string
-		err           bool
+		referrerOriginal string
+		candidates       string
+		referrerFinal    string
+		filter           Filter
+		originalNames    []string
+		prefix           []string
+		suffix           []string
+		inputPrefix      string
+		inputSuffix      string
+		err              bool
 	}{
 		"prefix match": {
-			input: `
+			referrerOriginal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -386,7 +393,7 @@ metadata:
 			suffix:        []string{"", "suffix2"},
 			inputPrefix:   "prefix1",
 			inputSuffix:   "",
-			expected: `
+			referrerFinal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -395,8 +402,8 @@ ref:
   name: newName
 `,
 			filter: Filter{
-				FieldSpec: types.FieldSpec{Path: "ref/name"},
-				Target: resid.Gvk{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
 					Group:   "apps",
 					Version: "v1",
 					Kind:    "Secret",
@@ -405,7 +412,7 @@ ref:
 			err: false,
 		},
 		"suffix match": {
-			input: `
+			referrerOriginal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -429,7 +436,7 @@ metadata:
 			suffix:        []string{"suffix1", "suffix2"},
 			inputPrefix:   "",
 			inputSuffix:   "suffix1",
-			expected: `
+			referrerFinal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -438,8 +445,8 @@ ref:
   name: newName
 `,
 			filter: Filter{
-				FieldSpec: types.FieldSpec{Path: "ref/name"},
-				Target: resid.Gvk{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
 					Group:   "apps",
 					Version: "v1",
 					Kind:    "Secret",
@@ -448,7 +455,7 @@ ref:
 			err: false,
 		},
 		"prefix suffix both match": {
-			input: `
+			referrerOriginal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -472,7 +479,7 @@ metadata:
 			suffix:        []string{"suffix1", "suffix2"},
 			inputPrefix:   "prefix1",
 			inputSuffix:   "suffix1",
-			expected: `
+			referrerFinal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -481,8 +488,8 @@ ref:
   name: newName
 `,
 			filter: Filter{
-				FieldSpec: types.FieldSpec{Path: "ref/name"},
-				Target: resid.Gvk{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
 					Group:   "apps",
 					Version: "v1",
 					Kind:    "Secret",
@@ -491,7 +498,7 @@ ref:
 			err: false,
 		},
 		"multiple match: both": {
-			input: `
+			referrerOriginal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -515,10 +522,10 @@ metadata:
 			suffix:        []string{"suffix", "suffix"},
 			inputPrefix:   "prefix",
 			inputSuffix:   "suffix",
-			expected:      "",
+			referrerFinal: "",
 			filter: Filter{
-				FieldSpec: types.FieldSpec{Path: "ref/name"},
-				Target: resid.Gvk{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
 					Group:   "apps",
 					Version: "v1",
 					Kind:    "Secret",
@@ -527,7 +534,7 @@ metadata:
 			err: true,
 		},
 		"multiple match: only prefix": {
-			input: `
+			referrerOriginal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -551,10 +558,10 @@ metadata:
 			suffix:        []string{"", ""},
 			inputPrefix:   "prefix",
 			inputSuffix:   "",
-			expected:      "",
+			referrerFinal: "",
 			filter: Filter{
-				FieldSpec: types.FieldSpec{Path: "ref/name"},
-				Target: resid.Gvk{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
 					Group:   "apps",
 					Version: "v1",
 					Kind:    "Secret",
@@ -563,7 +570,7 @@ metadata:
 			err: true,
 		},
 		"multiple match: only suffix": {
-			input: `
+			referrerOriginal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -587,10 +594,10 @@ metadata:
 			suffix:        []string{"suffix", "suffix"},
 			inputPrefix:   "",
 			inputSuffix:   "suffix",
-			expected:      "",
+			referrerFinal: "",
 			filter: Filter{
-				FieldSpec: types.FieldSpec{Path: "ref/name"},
-				Target: resid.Gvk{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
 					Group:   "apps",
 					Version: "v1",
 					Kind:    "Secret",
@@ -599,7 +606,7 @@ metadata:
 			err: true,
 		},
 		"no match: neither match": {
-			input: `
+			referrerOriginal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -623,7 +630,7 @@ metadata:
 			suffix:        []string{"suffix1", "suffix2"},
 			inputPrefix:   "prefix",
 			inputSuffix:   "suffix",
-			expected: `
+			referrerFinal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -632,8 +639,8 @@ ref:
   name: oldName
 `,
 			filter: Filter{
-				FieldSpec: types.FieldSpec{Path: "ref/name"},
-				Target: resid.Gvk{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
 					Group:   "apps",
 					Version: "v1",
 					Kind:    "Secret",
@@ -642,7 +649,7 @@ ref:
 			err: false,
 		},
 		"no match: prefix doesn't match": {
-			input: `
+			referrerOriginal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -666,7 +673,7 @@ metadata:
 			suffix:        []string{"suffix", "suffix"},
 			inputPrefix:   "prefix",
 			inputSuffix:   "suffix",
-			expected: `
+			referrerFinal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -675,8 +682,8 @@ ref:
   name: oldName
 `,
 			filter: Filter{
-				FieldSpec: types.FieldSpec{Path: "ref/name"},
-				Target: resid.Gvk{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
 					Group:   "apps",
 					Version: "v1",
 					Kind:    "Secret",
@@ -685,7 +692,7 @@ ref:
 			err: false,
 		},
 		"no match: suffix doesn't match": {
-			input: `
+			referrerOriginal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -709,7 +716,7 @@ metadata:
 			suffix:        []string{"suffix1", "suffix2"},
 			inputPrefix:   "prefix",
 			inputSuffix:   "suffix",
-			expected: `
+			referrerFinal: `
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -718,8 +725,8 @@ ref:
   name: oldName
 `,
 			filter: Filter{
-				FieldSpec: types.FieldSpec{Path: "ref/name"},
-				Target: resid.Gvk{
+				NameFieldToUpdate: types.FieldSpec{Path: "ref/name"},
+				ReferralTarget: resid.Gvk{
 					Group:   "apps",
 					Version: "v1",
 					Kind:    "Secret",
@@ -732,7 +739,7 @@ ref:
 	for tn, tc := range testCases {
 		t.Run(tn, func(t *testing.T) {
 			factory := provider.NewDefaultDepProvider().GetResourceFactory()
-			referrer, err := factory.FromBytes([]byte(tc.input))
+			referrer, err := factory.FromBytes([]byte(tc.referrerOriginal))
 			if err != nil {
 				t.Fatal(err)
 			}
@@ -744,7 +751,7 @@ ref:
 			}
 			tc.filter.Referrer = referrer
 
-			resMapFactory := resmap.NewFactory(factory, nil)
+			resMapFactory := resmap.NewFactory(factory)
 			candidatesRes, err := factory.SliceFromBytesWithNames(
 				tc.originalNames, []byte(tc.candidates))
 			if err != nil {
@@ -764,13 +771,15 @@ ref:
 
 			if !tc.err {
 				if !assert.Equal(t,
-					strings.TrimSpace(tc.expected),
+					strings.TrimSpace(tc.referrerFinal),
 					strings.TrimSpace(
-						filtertest_test.RunFilter(t, tc.input, tc.filter))) {
+						filtertest_test.RunFilter(
+							t, tc.referrerOriginal, tc.filter))) {
 					t.FailNow()
 				}
 			} else {
-				_, err := filtertest_test.RunFilterE(t, tc.input, tc.filter)
+				_, err := filtertest_test.RunFilterE(
+					t, tc.referrerOriginal, tc.filter)
 				if err == nil {
 					t.Fatalf("an error is expected")
 				}

api/filters/namespace/namespace.go

@@ -118,7 +118,6 @@ func (ns Filter) roleBindingHack(obj *yaml.RNode, meta yaml.ResourceMeta) error
 
 	// add the namespace to each "subject" with name: default
 	err = obj.VisitElements(func(o *yaml.RNode) error {
-		// copied from kunstruct based kustomize NamespaceTransformer plugin
 		// The only case we need to force the namespace
 		// if for the "service account". "default" is
 		// kind of hardcoded here for right now.

api/filters/patchstrategicmerge/patchstrategicmerge.go

@@ -15,6 +15,7 @@ type Filter struct {
 
 var _ kio.Filter = Filter{}
 
+// Filter does a strategic merge patch, which can delete nodes.
 func (pf Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
 	var result []*yaml.RNode
 	for i := range nodes {
@@ -27,7 +28,9 @@ func (pf Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
 		if err != nil {
 			return nil, err
 		}
-		result = append(result, r)
+		if r != nil {
+			result = append(result, r)
+		}
 	}
 	return result, nil
 }

api/filters/patchstrategicmerge/patchstrategicmerge_test.go

@@ -672,6 +672,63 @@ spec:
         ports:
         - containerPort: 80
         - containerPort: 8080
+`,
+		},
+
+		// Test for issue #3513
+		// Currently broken; when one port has only containerPort, the output
+		// should not merge containerPort 8301 together
+		// This occurs because when protocol is missing on the first port,
+		// the merge code uses [containerPort] as the merge key rather than
+		// [containerPort, protocol]
+		"list map keys - protocol only present on some ports": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test-deployment
+spec:
+  template:
+    spec:
+      containers:
+      - name: consul
+        image: "dashicorp/consul:1.9.1"
+        ports:
+        - containerPort: 8500
+          name: http
+        - containerPort: 8301
+          protocol: "TCP"
+        - containerPort: 8301
+          protocol: "UDP"
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test-deployment
+  labels:
+    test: label
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test-deployment
+  labels:
+    test: label
+spec:
+  template:
+    spec:
+      containers:
+      - name: consul
+        image: "dashicorp/consul:1.9.1"
+        ports:
+        - containerPort: 8500
+          name: http
+        - containerPort: 8301
+          protocol: "TCP"
+        - containerPort: 8301
+          protocol: "UDP"
 `,
 		},
 	}

api/filters/refvar/doc.go

@@ -1,3 +1,3 @@
 // Package refvar contains a kio.Filter implementation of the kustomize
-// refvar transformer.
+// refvar transformer (find and replace $(FOO) style variables in strings).
 package refvar

api/filters/refvar/expand.go

@@ -1,12 +1,12 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-// Package expansion provides functions find and replace $(FOO) style variables in strings.
-package expansion
+package refvar
 
 import (
-	"bytes"
 	"fmt"
+	"log"
+	"strings"
 )
 
 const (
@@ -17,38 +17,64 @@ const (
 
 // syntaxWrap returns the input string wrapped by the expansion syntax.
 func syntaxWrap(input string) string {
-	return string(operator) + string(referenceOpener) + input + string(referenceCloser)
+	var sb strings.Builder
+	sb.WriteByte(operator)
+	sb.WriteByte(referenceOpener)
+	sb.WriteString(input)
+	sb.WriteByte(referenceCloser)
+	return sb.String()
 }
 
-// MappingFuncFor returns a mapping function for use with Expand that
-// implements the expansion semantics defined in the expansion spec; it
-// returns the input string wrapped in the expansion syntax if no mapping
-// for the input is found.
-func MappingFuncFor(
-	counts map[string]int,
-	context ...map[string]interface{}) func(string) interface{} {
-	return func(input string) interface{} {
-		for _, vars := range context {
-			val, ok := vars[input]
-			if ok {
-				counts[input]++
-				switch typedV := val.(type) {
-				case string, int64, float64, bool:
-					return typedV
-				default:
-					return syntaxWrap(input)
-				}
+// MappingFunc maps a string to anything.
+type MappingFunc func(string) interface{}
+
+// MakePrimitiveReplacer returns a MappingFunc that uses a map to do
+// replacements, and a histogram to count map hits.
+//
+// Func behavior:
+//
+// If the input key is NOT found in the map, the key is wrapped up as
+// as a variable declaration string and returned, e.g. key FOO becomes $(FOO).
+// This string is presumably put back where it was found, and might get replaced
+// later.
+//
+// If the key is found in the map, the value is returned if it is a primitive
+// type (string, bool, number), and the hit is counted.
+//
+// If it's not a primitive type (e.g. a map, struct, func, etc.) then this
+// function doesn't know what to do with it and it returns the key wrapped up
+// again as if it had not been replaced.  This should probably be an error.
+func MakePrimitiveReplacer(
+	counts map[string]int, someMap map[string]interface{}) MappingFunc {
+	return func(key string) interface{} {
+		if value, ok := someMap[key]; ok {
+			switch typedV := value.(type) {
+			case string, int, int32, int64, float32, float64, bool:
+				counts[key]++
+				return typedV
+			default:
+				// If the value is some complicated type (e.g. a map or struct),
+				// this function doesn't know how to jam it into a string,
+				// so just pretend it was a cache miss.
+				// Likely this should be an error instead of a silent failure,
+				// since the programmer passed an impossible value.
+				log.Printf(
+					"MakePrimitiveReplacer: bad replacement type=%T val=%v",
+					typedV, typedV)
+				return syntaxWrap(key)
 			}
 		}
-		return syntaxWrap(input)
+		// If unable to return the mapped variable, return it
+		// as it was found, and a later mapping might be able to
+		// replace it.
+		return syntaxWrap(key)
 	}
 }
 
-// Expand replaces variable references in the input string according to
-// the expansion spec using the given mapping function to resolve the
-// values of variables.
-func Expand(input string, mapping func(string) interface{}) interface{} {
-	var buf bytes.Buffer
+// DoReplacements replaces variable references in the input string
+// using the mapping function.
+func DoReplacements(input string, mapping MappingFunc) interface{} {
+	var buf strings.Builder
 	checkpoint := 0
 	for cursor := 0; cursor < len(input); cursor++ {
 		if input[cursor] == operator && cursor+1 < len(input) {

api/filters/refvar/expand_test.go

@@ -1,13 +1,14 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-package expansion_test
+package refvar_test
 
 import (
 	"fmt"
 	"testing"
 
-	. "sigs.k8s.io/kustomize/api/internal/accumulator/expansion"
+	"github.com/stretchr/testify/assert"
+	. "sigs.k8s.io/kustomize/api/filters/refvar"
 )
 
 type expected struct {
@@ -15,6 +16,48 @@ type expected struct {
 	edited string
 }
 
+func TestPrimitiveReplacer(t *testing.T) {
+	varCounts := make(map[string]int)
+	f := MakePrimitiveReplacer(
+		varCounts,
+		map[string]interface{}{
+			"FOO":        "bar",
+			"ZOO":        "$(FOO)-1",
+			"BLU":        "$(ZOO)-2",
+			"EIGHT":      8,
+			"PI":         3.14159,
+			"ZINT":       "$(INT)",
+			"BOOL":       "true",
+			"HUGENUMBER": int64(9223372036854775807),
+			"CRAZYMAP":   map[string]int{"crazy": 200},
+			"ZBOOL":      "$(BOOL)",
+		})
+	assert.Equal(t, "$()", f(""))
+	assert.Equal(t, "$(      )", f("      "))
+	assert.Equal(t, "$(florida)", f("florida"))
+	assert.Equal(t, "$(0)", f("0"))
+	assert.Equal(t, "bar", f("FOO"))
+	assert.Equal(t, "bar", f("FOO"))
+	assert.Equal(t, "bar", f("FOO"))
+	assert.Equal(t, 8, f("EIGHT"))
+	assert.Equal(t, 8, f("EIGHT"))
+	assert.Equal(t, 3.14159, f("PI"))
+	assert.Equal(t, "true", f("BOOL"))
+	assert.Equal(t, int64(9223372036854775807), f("HUGENUMBER"))
+	assert.Equal(t, "$(FOO)-1", f("ZOO"))
+	assert.Equal(t, "$(CRAZYMAP)", f("CRAZYMAP"))
+	assert.Equal(t,
+		map[string]int{
+			"FOO":        3,
+			"EIGHT":      2,
+			"BOOL":       1,
+			"PI":         1,
+			"ZOO":        1,
+			"HUGENUMBER": 1,
+		},
+		varCounts)
+}
+
 func TestMapReference(t *testing.T) {
 	type env struct {
 		Name  string
@@ -51,7 +94,7 @@ func TestMapReference(t *testing.T) {
 		},
 	}
 
-	declaredEnv := map[string]interface{}{
+	varMap := map[string]interface{}{
 		"FOO":   "bar",
 		"ZOO":   "$(FOO)-1",
 		"BLU":   "$(ZOO)-2",
@@ -61,11 +104,11 @@ func TestMapReference(t *testing.T) {
 		"ZBOOL": "$(BOOL)",
 	}
 
-	counts := make(map[string]int)
-	mapping := MappingFuncFor(counts, declaredEnv)
-
+	varCounts := make(map[string]int)
 	for _, env := range envs {
-		declaredEnv[env.Name] = Expand(fmt.Sprintf("%v", env.Value), mapping)
+		varMap[env.Name] = DoReplacements(
+			fmt.Sprintf("%v", env.Value),
+			MakePrimitiveReplacer(varCounts, varMap))
 	}
 
 	expectedEnv := map[string]expected{
@@ -79,45 +122,20 @@ func TestMapReference(t *testing.T) {
 	}
 
 	for k, v := range expectedEnv {
-		if e, a := v, declaredEnv[k]; e.edited != a || e.count != counts[k] {
+		if e, a := v, varMap[k]; e.edited != a || e.count != varCounts[k] {
 			t.Errorf("Expected %v count=%d, got %v count=%d",
-				e.edited, e.count, a, counts[k])
+				e.edited, e.count, a, varCounts[k])
 		} else {
-			delete(declaredEnv, k)
+			delete(varMap, k)
 		}
 	}
 
-	if len(declaredEnv) != 0 {
-		t.Errorf("Unexpected keys in declared env: %v", declaredEnv)
+	if len(varMap) != 0 {
+		t.Errorf("Unexpected keys in declared env: %v", varMap)
 	}
 }
 
 func TestMapping(t *testing.T) {
-	context := map[string]interface{}{
-		"VAR_A":     "A",
-		"VAR_B":     "B",
-		"VAR_C":     "C",
-		"VAR_REF":   "$(VAR_A)",
-		"VAR_EMPTY": "",
-	}
-	doExpansionTest(t, context)
-}
-
-func TestMappingDual(t *testing.T) {
-	context := map[string]interface{}{
-		"VAR_A":     "A",
-		"VAR_EMPTY": "",
-	}
-	context2 := map[string]interface{}{
-		"VAR_B":   "B",
-		"VAR_C":   "C",
-		"VAR_REF": "$(VAR_A)",
-	}
-
-	doExpansionTest(t, context, context2)
-}
-
-func doExpansionTest(t *testing.T, context ...map[string]interface{}) {
 	cases := []struct {
 		name     string
 		input    string
@@ -333,11 +351,17 @@ func doExpansionTest(t *testing.T, context ...map[string]interface{}) {
 			expected: "\n",
 		},
 	}
-
 	for _, tc := range cases {
 		counts := make(map[string]int)
-		mapping := MappingFuncFor(counts, context...)
-		expanded := Expand(fmt.Sprintf("%v", tc.input), mapping)
+		expanded := DoReplacements(
+			fmt.Sprintf("%v", tc.input),
+			MakePrimitiveReplacer(counts, map[string]interface{}{
+				"VAR_A":     "A",
+				"VAR_B":     "B",
+				"VAR_C":     "C",
+				"VAR_REF":   "$(VAR_A)",
+				"VAR_EMPTY": "",
+			}))
 		if e, a := tc.expected, expanded; e != a {
 			t.Errorf("%v: expected %q, got %q", tc.name, e, a)
 		}
@@ -347,8 +371,7 @@ func doExpansionTest(t *testing.T, context ...map[string]interface{}) {
 		}
 		if len(tc.counts) > 0 {
 			for k, expectedCount := range tc.counts {
-				c, ok := counts[k]
-				if ok {
+				if c, ok := counts[k]; ok {
 					if c != expectedCount {
 						t.Errorf(
 							"%v: k=%s, expected count %d, got %d",

api/filters/refvar/refvar.go

@@ -8,15 +8,13 @@ import (
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/kustomize/kyaml/kio"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
-
-	expansion2 "sigs.k8s.io/kustomize/api/internal/accumulator/expansion"
 )
 
 // Filter updates $(VAR) style variables with values.
 // The fieldSpecs are the places to look for occurrences of $(VAR).
 type Filter struct {
-	MappingFunc func(string) interface{} `json:"mappingFunc,omitempty" yaml:"mappingFunc,omitempty"`
-	FieldSpec   types.FieldSpec          `json:"fieldSpec,omitempty" yaml:"fieldSpec,omitempty"`
+	MappingFunc MappingFunc     `json:"mappingFunc,omitempty" yaml:"mappingFunc,omitempty"`
+	FieldSpec   types.FieldSpec `json:"fieldSpec,omitempty" yaml:"fieldSpec,omitempty"`
 }
 
 func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
@@ -49,12 +47,21 @@ func (f Filter) set(node *yaml.RNode) error {
 
 func updateNodeValue(node *yaml.Node, newValue interface{}) {
 	switch newValue := newValue.(type) {
+	case int:
+		node.Value = strconv.FormatInt(int64(newValue), 10)
+		node.Tag = yaml.NodeTagInt
+	case int32:
+		node.Value = strconv.FormatInt(int64(newValue), 10)
+		node.Tag = yaml.NodeTagInt
 	case int64:
 		node.Value = strconv.FormatInt(newValue, 10)
 		node.Tag = yaml.NodeTagInt
 	case bool:
 		node.SetString(strconv.FormatBool(newValue))
 		node.Tag = yaml.NodeTagBool
+	case float32:
+		node.SetString(strconv.FormatFloat(float64(newValue), 'f', -1, 32))
+		node.Tag = yaml.NodeTagFloat
 	case float64:
 		node.SetString(strconv.FormatFloat(newValue, 'f', -1, 64))
 		node.Tag = yaml.NodeTagFloat
@@ -69,7 +76,7 @@ func (f Filter) setScalar(node *yaml.RNode) error {
 	if !yaml.IsYNodeString(node.YNode()) {
 		return nil
 	}
-	v := expansion2.Expand(node.YNode().Value, f.MappingFunc)
+	v := DoReplacements(node.YNode().Value, f.MappingFunc)
 	updateNodeValue(node.YNode(), v)
 	return nil
 }
@@ -78,12 +85,14 @@ func (f Filter) setMap(node *yaml.RNode) error {
 	contents := node.YNode().Content
 	for i := 0; i < len(contents); i += 2 {
 		if !yaml.IsYNodeString(contents[i]) {
-			return fmt.Errorf("invalid map key: %s, type: %s", contents[i].Value, contents[i].Tag)
+			return fmt.Errorf(
+				"invalid map key: value='%s', tag='%s'",
+				contents[i].Value, contents[i].Tag)
 		}
 		if !yaml.IsYNodeString(contents[i+1]) {
 			continue
 		}
-		newValue := expansion2.Expand(contents[i+1].Value, f.MappingFunc)
+		newValue := DoReplacements(contents[i+1].Value, f.MappingFunc)
 		updateNodeValue(contents[i+1], newValue)
 	}
 	return nil
@@ -94,7 +103,7 @@ func (f Filter) setSeq(node *yaml.RNode) error {
 		if !yaml.IsYNodeString(item) {
 			return fmt.Errorf("invalid value type expect a string")
 		}
-		newValue := expansion2.Expand(item.Value, f.MappingFunc)
+		newValue := DoReplacements(item.Value, f.MappingFunc)
 		updateNodeValue(item, newValue)
 	}
 	return nil

api/filters/refvar/refvar_test.go

@@ -1,18 +1,22 @@
-package refvar
+package refvar_test
 
 import (
 	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	expansion2 "sigs.k8s.io/kustomize/api/internal/accumulator/expansion"
+	. "sigs.k8s.io/kustomize/api/filters/refvar"
 	filtertest_test "sigs.k8s.io/kustomize/api/testutils/filtertest"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
+var makeMf = func(theMap map[string]interface{}) MappingFunc {
+	ignored := make(map[string]int)
+	return MakePrimitiveReplacer(ignored, theMap)
+}
+
 func TestFilter(t *testing.T) {
-	replacementCounts := make(map[string]int)
 
 	testCases := map[string]struct {
 		input    string
@@ -35,7 +39,7 @@ metadata:
 spec:
   replicas: 5`,
 			filter: Filter{
-				MappingFunc: expansion2.MappingFuncFor(replacementCounts, map[string]interface{}{
+				MappingFunc: makeMf(map[string]interface{}{
 					"VAR": int64(5),
 				}),
 				FieldSpec: types.FieldSpec{Path: "spec/replicas"},
@@ -57,7 +61,7 @@ metadata:
 spec:
   replicas: 1`,
 			filter: Filter{
-				MappingFunc: expansion2.MappingFuncFor(replacementCounts, map[string]interface{}{
+				MappingFunc: makeMf(map[string]interface{}{
 					"VAR": int64(5),
 				}),
 				FieldSpec: types.FieldSpec{Path: "spec/replicas"},
@@ -79,7 +83,7 @@ metadata:
 spec:
   replicas: 1`,
 			filter: Filter{
-				MappingFunc: expansion2.MappingFuncFor(replacementCounts, map[string]interface{}{
+				MappingFunc: makeMf(map[string]interface{}{
 					"VAR": int64(5),
 				}),
 				FieldSpec: types.FieldSpec{Path: "a/b/c"},
@@ -111,7 +115,7 @@ data:
 - false
 - 1.23`,
 			filter: Filter{
-				MappingFunc: expansion2.MappingFuncFor(replacementCounts, map[string]interface{}{
+				MappingFunc: makeMf(map[string]interface{}{
 					"FOO":   "foo",
 					"BAR":   "bar",
 					"BOOL":  false,
@@ -142,7 +146,7 @@ data:
   BAZ: $(BAZ)
   PLUS: foo+bar`,
 			filter: Filter{
-				MappingFunc: expansion2.MappingFuncFor(replacementCounts, map[string]interface{}{
+				MappingFunc: makeMf(map[string]interface{}{
 					"FOO": "foo",
 					"BAR": "bar",
 				}),
@@ -181,7 +185,7 @@ data:
     SLICE:
     - $(FOO)`,
 			filter: Filter{
-				MappingFunc: expansion2.MappingFuncFor(replacementCounts, map[string]interface{}{
+				MappingFunc: makeMf(map[string]interface{}{
 					"FOO": "foo",
 					"BAR": "bar",
 				}),
@@ -204,8 +208,10 @@ metadata:
 data:
   FOO: null`,
 			filter: Filter{
-				MappingFunc: expansion2.MappingFuncFor(replacementCounts, map[string]interface{}{}),
-				FieldSpec:   types.FieldSpec{Path: "data/FOO"},
+				MappingFunc: makeMf(map[string]interface{}{
+					// no replacements!
+				}),
+				FieldSpec: types.FieldSpec{Path: "data/FOO"},
 			},
 		},
 	}
@@ -223,8 +229,6 @@ data:
 }
 
 func TestFilterUnhappy(t *testing.T) {
-	replacementCounts := make(map[string]int)
-
 	testCases := map[string]struct {
 		input         string
 		expectedError string
@@ -239,7 +243,8 @@ metadata:
 data:
   slice:
   - false`,
-			expectedError: `obj 'apiVersion: apps/v1
+			expectedError: `considering field 'data/slice' of object
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: dep
@@ -248,9 +253,9 @@ metadata:
 data:
   slice:
   - false
-' at path 'data/slice': invalid value type expect a string`,
+: invalid value type expect a string`,
 			filter: Filter{
-				MappingFunc: expansion2.MappingFuncFor(replacementCounts, map[string]interface{}{
+				MappingFunc: makeMf(map[string]interface{}{
 					"VAR": int64(5),
 				}),
 				FieldSpec: types.FieldSpec{Path: "data/slice"},
@@ -264,7 +269,8 @@ metadata:
   name: dep
 data:
   1: str`,
-			expectedError: `obj 'apiVersion: apps/v1
+			expectedError: `considering field 'data' of object
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: dep
@@ -272,9 +278,9 @@ metadata:
     config.kubernetes.io/index: '0'
 data:
   1: str
-' at path 'data': invalid map key: 1, type: ` + yaml.NodeTagInt,
+: invalid map key: value='1', tag='` + yaml.NodeTagInt + `'`,
 			filter: Filter{
-				MappingFunc: expansion2.MappingFuncFor(replacementCounts, map[string]interface{}{
+				MappingFunc: makeMf(map[string]interface{}{
 					"VAR": int64(5),
 				}),
 				FieldSpec: types.FieldSpec{Path: "data"},

api/filters/replacement/doc.go

@@ -0,0 +1,4 @@
+// Package replacement contains a kio.Filter implementation of the kustomize
+// replacement transformer (accepts sources and looks for targets to replace
+// their values with values from the sources).
+package replacement

api/filters/replacement/example_test.go

@@ -0,0 +1,68 @@
+// Copyright 2021 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package replacement
+
+import (
+	"bytes"
+	"log"
+	"os"
+
+	"sigs.k8s.io/kustomize/kyaml/kio"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
+func ExampleFilter() {
+	f := Filter{}
+	err := yaml.Unmarshal([]byte(`
+replacements:
+- source:
+    kind: Foo2
+    fieldPath: spec.replicas
+  targets:
+  - select:
+      kind: Foo1
+    fieldPaths: 
+    - spec.replicas`), &f)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	err = kio.Pipeline{
+		Inputs: []kio.Reader{&kio.ByteReader{Reader: bytes.NewBufferString(`
+apiVersion: example.com/v1
+kind: Foo1
+metadata:
+  name: instance
+spec:
+  replicas: 3
+---
+apiVersion: example.com/v1
+kind: Foo2
+metadata:
+  name: instance
+spec:
+  replicas: 99
+`)}},
+		Filters: []kio.Filter{f},
+		Outputs: []kio.Writer{kio.ByteWriter{Writer: os.Stdout}},
+	}.Execute()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	// Output:
+	// apiVersion: example.com/v1
+	// kind: Foo1
+	// metadata:
+	//   name: instance
+	// spec:
+	//   replicas: 99
+	// ---
+	// apiVersion: example.com/v1
+	// kind: Foo2
+	// metadata:
+	//   name: instance
+	// spec:
+	//   replicas: 99
+}

api/filters/replacement/replacement.go

@@ -0,0 +1,185 @@
+// Copyright 2021 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package replacement
+
+import (
+	"fmt"
+	"strings"
+
+	"sigs.k8s.io/kustomize/api/resid"
+	"sigs.k8s.io/kustomize/api/types"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
+)
+
+type Filter struct {
+	Replacements []types.Replacement `json:"replacements,omitempty" yaml:"replacements,omitempty"`
+}
+
+// Filter replaces values of targets with values from sources
+func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
+	for _, r := range f.Replacements {
+		if r.Source == nil || r.Targets == nil {
+			return nil, fmt.Errorf("replacements must specify a source and at least one target")
+		}
+		value, err := getReplacement(nodes, &r)
+		if err != nil {
+			return nil, err
+		}
+		nodes, err = applyReplacement(nodes, value, r.Targets)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+func applyReplacement(nodes []*yaml.RNode, value *yaml.RNode, targets []*types.TargetSelector) ([]*yaml.RNode, error) {
+	for _, t := range targets {
+		if t.Select == nil {
+			return nil, fmt.Errorf("target must specify resources to select")
+		}
+		if len(t.FieldPaths) == 0 {
+			t.FieldPaths = []string{types.DefaultReplacementFieldPath}
+		}
+		for _, n := range nodes {
+			nodeId := getKrmId(n)
+			if t.Select.KrmId.Match(nodeId) && !rejectId(t.Reject, nodeId) {
+				err := applyToNode(n, value, t)
+				if err != nil {
+					return nil, err
+				}
+			}
+		}
+	}
+	return nodes, nil
+}
+
+func rejectId(rejects []*types.Selector, nodeId *types.KrmId) bool {
+	for _, r := range rejects {
+		if r.KrmId.Match(nodeId) {
+			return true
+		}
+	}
+	return false
+}
+
+func applyToNode(node *yaml.RNode, value *yaml.RNode, target *types.TargetSelector) error {
+	for _, fp := range target.FieldPaths {
+		fieldPath := strings.Split(fp, ".")
+		var t *yaml.RNode
+		var err error
+		if target.Options != nil && target.Options.Create {
+			t, err = node.Pipe(yaml.LookupCreate(value.YNode().Kind, fieldPath...))
+		} else {
+			t, err = node.Pipe(yaml.Lookup(fieldPath...))
+		}
+		if err != nil {
+			return err
+		}
+		if t != nil {
+			if err = setTargetValue(target.Options, t, value); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+func setTargetValue(options *types.FieldOptions, t *yaml.RNode, value *yaml.RNode) error {
+	if options != nil && options.Delimiter != "" {
+
+		if t.YNode().Kind != yaml.ScalarNode {
+			return fmt.Errorf("delimiter option can only be used with scalar nodes")
+		}
+
+		tv := strings.Split(t.YNode().Value, options.Delimiter)
+		v := yaml.GetValue(value)
+		// TODO: Add a way to remove an element
+		switch {
+		case options.Index < 0: // prefix
+			tv = append([]string{v}, tv...)
+		case options.Index >= len(tv): // suffix
+			tv = append(tv, v)
+		default: // replace an element
+			tv[options.Index] = v
+		}
+		value.YNode().Value = strings.Join(tv, options.Delimiter)
+	}
+	t.SetYNode(value.YNode())
+	return nil
+}
+
+func getReplacement(nodes []*yaml.RNode, r *types.Replacement) (*yaml.RNode, error) {
+	source, err := selectSourceNode(nodes, r.Source)
+	if err != nil {
+		return nil, err
+	}
+
+	if r.Source.FieldPath == "" {
+		r.Source.FieldPath = types.DefaultReplacementFieldPath
+	}
+	fieldPath := strings.Split(r.Source.FieldPath, ".")
+
+	rn, err := source.Pipe(yaml.Lookup(fieldPath...))
+	if err != nil {
+		return nil, err
+	}
+	if !rn.IsNilOrEmpty() {
+		return getRefinedValue(r.Source.Options, rn)
+	}
+	return rn, nil
+}
+
+func getRefinedValue(options *types.FieldOptions, rn *yaml.RNode) (*yaml.RNode, error) {
+	if options == nil || options.Delimiter == "" {
+		return rn, nil
+	}
+	if rn.YNode().Kind != yaml.ScalarNode {
+		return nil, fmt.Errorf("delimiter option can only be used with scalar nodes")
+	}
+	value := strings.Split(yaml.GetValue(rn), options.Delimiter)
+	if options.Index >= len(value) || options.Index < 0 {
+		return nil, fmt.Errorf("options.index %d is out of bounds for value %s", options.Index, yaml.GetValue(rn))
+	}
+	n := rn.Copy()
+	n.YNode().Value = value[options.Index]
+	return n, nil
+}
+
+// selectSourceNode finds the node that matches the selector, returning
+// an error if multiple or none are found
+func selectSourceNode(nodes []*yaml.RNode, selector *types.SourceSelector) (*yaml.RNode, error) {
+	var matches []*yaml.RNode
+	for _, n := range nodes {
+		if selector.KrmId.Match(getKrmId(n)) {
+			if len(matches) > 0 {
+				return nil, fmt.Errorf("more than one match for source %v", selector)
+			}
+			matches = append(matches, n)
+		}
+	}
+	if len(matches) == 0 {
+		return nil, fmt.Errorf("found no matches for source %v", selector)
+	}
+	return matches[0], nil
+}
+
+func getKrmId(n *yaml.RNode) *types.KrmId {
+	ns, err := n.GetNamespace()
+	if err != nil {
+		// Resource has no metadata (no apiVersion, kind, nor metadata field).
+		// In this case, it cannot be selected.
+		return &types.KrmId{}
+	}
+	apiVersion := n.Field(yaml.APIVersionField)
+	var group, version string
+	if apiVersion != nil {
+		group, version = resid.ParseGroupVersion(yaml.GetValue(apiVersion.Value))
+	}
+	return &types.KrmId{
+		Gvk:       resid.Gvk{Group: group, Version: version, Kind: n.GetKind()},
+		Name:      n.GetName(),
+		Namespace: ns,
+	}
+}

api/filters/valueadd/valueadd.go

@@ -98,7 +98,17 @@ var _ kio.Filter = Filter{}
 func (f Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
 	_, err := kio.FilterAll(yaml.FilterFunc(
 		func(node *yaml.RNode) (*yaml.RNode, error) {
-			fields := strings.Split(f.FieldPath, "/")
+			var fields []string
+			// if there is forward slash '/' in the field name, a back slash '\'
+			// will be used to escape it.
+			for _, f := range strings.Split(f.FieldPath, "/") {
+				if len(fields) > 0 && strings.HasSuffix(fields[len(fields)-1], "\\") {
+					concatField := strings.TrimSuffix(fields[len(fields)-1], "\\") + "/" + f
+					fields = append(fields[:len(fields)-1], concatField)
+				} else {
+					fields = append(fields, f)
+				}
+			}
 			// TODO: support SequenceNode.
 			// Presumably here one could look for array indices (digits) at
 			// the end of the field path (as described in IETF RFC 6902 JSON),

api/filters/valueadd/valueadd_test.go

@@ -94,6 +94,20 @@ spec:
 				FilePathPosition: 2,
 			},
 		},
+		"backSlash": {
+			input: `
+kind: SomeKind
+`,
+			expectedOutput: `
+kind: SomeKind
+spec:
+  resourceRef/external: valueAdded
+`,
+			filter: Filter{
+				Value:     "valueAdded",
+				FieldPath: "spec/resourceRef\\/external",
+			},
+		},
 	}
 
 	for tn, tc := range testCases {

api/go.mod

@@ -1,26 +1,18 @@
 module sigs.k8s.io/kustomize/api
 
-go 1.15
+go 1.16
 
 require (
 	github.com/evanphx/json-patch v4.5.0+incompatible
 	github.com/go-errors/errors v1.0.1
 	github.com/go-openapi/spec v0.19.5
-	github.com/golangci/golangci-lint v1.21.0
-	github.com/google/go-cmp v0.3.0
 	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510
-	github.com/hashicorp/go-multierror v1.1.0
 	github.com/imdario/mergo v0.3.5
-	github.com/pkg/errors v0.8.1
+	github.com/pkg/errors v0.9.1
 	github.com/stretchr/testify v1.4.0
-	github.com/yujunz/go-getter v1.5.1-lite.0.20201201013212-6d9c071adddf
-	golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e
-	gopkg.in/yaml.v2 v2.3.0
-	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c
-	k8s.io/api v0.17.0
-	k8s.io/apimachinery v0.17.0
-	k8s.io/client-go v0.17.0
-	k8s.io/kube-openapi v0.0.0-20191107075043-30be4d16710a
-	sigs.k8s.io/kustomize/kyaml v0.10.5
+	gopkg.in/yaml.v2 v2.4.0
+	sigs.k8s.io/kustomize/kyaml v0.10.17
 	sigs.k8s.io/yaml v1.2.0
 )
+
+replace sigs.k8s.io/kustomize/kyaml => ../kyaml

api/go.sum

@@ -1,43 +1,20 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
-github.com/360EntSecGroup-Skylar/excelize v1.4.1/go.mod h1:vnax29X2usfl7HHkBrX5EvSCJcmH3dT9luvxzu8iGAE=
-github.com/Azure/go-autorest/autorest v0.9.0/go.mod h1:xyHB1BMZT0cuDHU7I0+g046+BFDTQ8rEZB0s4Yfa6bI=
-github.com/Azure/go-autorest/autorest/adal v0.5.0/go.mod h1:8Z9fGy2MpX0PvDjB1pEgQTmVqjGhiHBW7RJJEciWzS0=
-github.com/Azure/go-autorest/autorest/date v0.1.0/go.mod h1:plvfp3oPSKwf2DNjlBjWF/7vwR+cUD/ELuzDCXwHUVA=
-github.com/Azure/go-autorest/autorest/mocks v0.1.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
-github.com/Azure/go-autorest/autorest/mocks v0.2.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
-github.com/Azure/go-autorest/logger v0.1.0/go.mod h1:oExouG+K6PryycPJfVSxi/koC6LSNgds39diKLz7Vrc=
-github.com/Azure/go-autorest/tracing v0.5.0/go.mod h1:r/s2XiOKccPW3HrqB+W0TQzfbtp2fGCgRFtBroKn4Dk=
-github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
-github.com/OpenPeeDeeP/depguard v1.0.1 h1:VlW4R6jmBIv3/u1JNlawEvJMM4J+dPORPaZasQee8Us=
-github.com/OpenPeeDeeP/depguard v1.0.1/go.mod h1:xsIw86fROiiwelg+jB2uM9PiKihMMmUx/1V+TNhjQvM=
-github.com/PuerkitoBio/goquery v1.5.0/go.mod h1:qD2PgZ9lccMbQlc7eEOjaeRlFQON7xY8kdmcsrnKqMg=
-github.com/PuerkitoBio/purell v1.0.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
 github.com/PuerkitoBio/purell v1.1.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
 github.com/PuerkitoBio/purell v1.1.1 h1:WEQqlqaGbrPkxLJWfBwQmfEAE1Z7ONdDLqrN38tNFfI=
 github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
-github.com/PuerkitoBio/urlesc v0.0.0-20160726150825-5bd2802263f2/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
 github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 h1:d+Bc7a5rLufV/sSk/8dngufqelfh6jnri85riMAaF/M=
 github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
-github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
 github.com/agnivade/levenshtein v1.0.1/go.mod h1:CURSv5d9Uaml+FovSIICkLbAUZ9S4RqaHDIsdSBg7lM=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883/go.mod h1:rCTlJbsFo29Kk6CurOXKm700vrz8f0KW0JNfpkRJY/8=
-github.com/andybalholm/cascadia v1.0.0/go.mod h1:GsXiBklL0woXo1j/WYWtSYYC4ouU9PqHO0sqidkEA4Y=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
 github.com/asaskevich/govalidator v0.0.0-20180720115003-f9ffefc3facf/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
 github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
-github.com/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d h1:xDfNPAt8lFiC1UJrqV3uuy861HCTo708pDMbjHHdCas=
-github.com/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d/go.mod h1:6QX/PXZ00z/TKoufEY6K/a0k6AhaJrQKdFe6OfVXsa4=
-github.com/bombsimon/wsl v1.2.5 h1:9gTOkIwVtoDZywvX802SDHokeX4kW1cKnV8ZTVAPkRs=
-github.com/bombsimon/wsl v1.2.5/go.mod h1:43lEF/i0kpXbLCeDXL9LMT8c92HyBywXb0AsgMHYngM=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
 github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
@@ -45,14 +22,10 @@ github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMn
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
-github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
-github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
 github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
-github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
-github.com/davecgh/go-spew v0.0.0-20151105211317-5215b55f46b2/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -60,33 +33,17 @@ github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZm
 github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
 github.com/docker/go-units v0.3.3/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
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@@ -95,13 +52,11 @@ github.com/go-openapi/analysis v0.19.5/go.mod h1:hkEAkxagaIvIP7VTn8ygJNkd4kAYON2
 github.com/go-openapi/errors v0.17.0/go.mod h1:LcZQpmvG4wyF5j4IhA73wkLFQg+QJXOQHVjmcZxhka0=
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@@ -115,7 +70,6 @@ github.com/go-openapi/loads v0.19.4/go.mod h1:zZVHonKd8DXyxyw4yfnVjPzBjIQcLt0CCs
 github.com/go-openapi/runtime v0.0.0-20180920151709-4f900dc2ade9/go.mod h1:6v9a6LTXWQCdL8k1AO3cvqx5OtZY/Y9wKTgaoP6YRfA=
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@@ -127,7 +81,6 @@ github.com/go-openapi/strfmt v0.18.0/go.mod h1:P82hnJI0CXkErkXi8IKjPbNBM6lV6+5pL
 github.com/go-openapi/strfmt v0.19.0/go.mod h1:+uW+93UVvGGq2qGaZxdDeJqSAqBqBdl+ZPMF/cC8nDY=
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@@ -137,154 +90,44 @@ github.com/go-openapi/validate v0.18.0/go.mod h1:Uh4HdOzKt19xGIGm1qHf/ofbX1YQ4Y+
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@@ -555,55 +252,17 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8
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-gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
-gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=
-honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
-k8s.io/api v0.17.0 h1:H9d/lw+VkZKEVIUc8F3wgiQ+FUXTTr21M87jXLU7yqM=
-k8s.io/api v0.17.0/go.mod h1:npsyOePkeP0CPwyGfXDHxvypiYMJxBWAMpQxCaJ4ZxI=
-k8s.io/apimachinery v0.17.0 h1:xRBnuie9rXcPxUkDizUsGvPf1cnlZCFu210op7J7LJo=
-k8s.io/apimachinery v0.17.0/go.mod h1:b9qmWdKlLuU9EBh+06BtLcSf/Mu89rWL33naRxs1uZg=
-k8s.io/client-go v0.17.0 h1:8QOGvUGdqDMFrm9sD6IUFl256BcffynGoe80sxgTEDg=
-k8s.io/client-go v0.17.0/go.mod h1:TYgR6EUHs6k45hb6KWjVD6jFZvJV4gHDikv/It0xz+k=
-k8s.io/gengo v0.0.0-20190128074634-0689ccc1d7d6/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
-k8s.io/klog v0.0.0-20181102134211-b9b56d5dfc92/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
-k8s.io/klog v0.3.0/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
-k8s.io/klog v1.0.0 h1:Pt+yjF5aB1xDSVbau4VsWe+dQNzA0qv1LlXdC2dF6Q8=
-k8s.io/klog v1.0.0/go.mod h1:4Bi6QPql/J/LkTDqv7R/cd3hPo4k2DG6Ptcz060Ez5I=
-k8s.io/kube-openapi v0.0.0-20191107075043-30be4d16710a h1:UcxjrRMyNx/i/y8G7kPvLyy7rfbeuf1PYyBf973pgyU=
-k8s.io/kube-openapi v0.0.0-20191107075043-30be4d16710a/go.mod h1:1TqjTSzOxsLGIKfj0lK8EeCP7K1iUG65v09OM0/WG5E=
-k8s.io/utils v0.0.0-20191114184206-e782cd3c129f h1:GiPwtSzdP43eI1hpPCbROQCCIgCuiMMNF8YUVLF3vJo=
-k8s.io/utils v0.0.0-20191114184206-e782cd3c129f/go.mod h1:sZAwmy6armz5eXlNoLmJcl4F1QuKu7sr+mFQ0byX7Ew=
-mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed h1:WX1yoOaKQfddO/mLzdV4wptyWgoH/6hwLs7QHTixo0I=
-mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed/go.mod h1:Xkxe497xwlCKkIaQYRfC7CSLworTXY9RMqwhhCm+8Nc=
-mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b h1:DxJ5nJdkhDlLok9K6qO+5290kphDJbHOQO1DFFFTeBo=
-mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b/go.mod h1:2odslEg/xrtNQqCYg2/jCoyKnw3vv5biOc3JnIcYfL4=
-mvdan.cc/unparam v0.0.0-20190720180237-d51796306d8f h1:Cq7MalBHYACRd6EesksG1Q8EoIAKOsiZviGKbOLIej4=
-mvdan.cc/unparam v0.0.0-20190720180237-d51796306d8f/go.mod h1:4G1h5nDURzA3bwVMZIVpwbkw+04kSxk3rAtzlimaUJw=
-sigs.k8s.io/kustomize/kyaml v0.10.5 h1:PbJcsZsEM7O3hHtUWTR+4WkHVbQRW9crSy75or1gRbI=
-sigs.k8s.io/kustomize/kyaml v0.10.5/go.mod h1:P6Oy/ah/GZMKzJMIJA2a3/bc8YrBkuL5kJji13PSIzY=
-sigs.k8s.io/structured-merge-diff v0.0.0-20190525122527-15d366b2352e/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
-sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
 sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=
 sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=
-sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4 h1:JPJh2pk3+X4lXAkZIk2RuE/7/FoK9maXw+TNPJhVS/c=
-sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=

api/hasher/hasher.go

@@ -20,12 +20,12 @@ func SortArrayAndComputeHash(s []string) (string, error) {
 	if err != nil {
 		return "", err
 	}
-	return Encode(Hash(string(data)))
+	return encode(hex256(string(data)))
 }
 
 // Copied from https://github.com/kubernetes/kubernetes
 // /blob/master/pkg/kubectl/util/hash/hash.go
-func Encode(hex string) (string, error) {
+func encode(hex string) (string, error) {
 	if len(hex) < 10 {
 		return "", fmt.Errorf(
 			"input length must be at least 10")
@@ -48,23 +48,18 @@ func Encode(hex string) (string, error) {
 	return string(enc), nil
 }
 
-// Hash returns the hex form of the sha256 of the argument.
-func Hash(data string) string {
+// hex256 returns the hex form of the sha256 of the argument.
+func hex256(data string) string {
 	return fmt.Sprintf("%x", sha256.Sum256([]byte(data)))
 }
 
-// HashRNode returns the hash value of input RNode
-func HashRNode(node *yaml.RNode) (string, error) {
-	// get node kind
-	kindNode, err := node.Pipe(yaml.FieldMatcher{Name: "kind"})
-	if err != nil {
-		return "", err
-	}
-	kind := kindNode.YNode().Value
+// Hasher computes the hash of an RNode.
+type Hasher struct{}
 
-	// calculate hash for different kinds
-	encoded := ""
-	switch kind {
+// Hash returns a hash of the argument.
+func (h *Hasher) Hash(node *yaml.RNode) (r string, err error) {
+	var encoded string
+	switch node.GetKind() {
 	case "ConfigMap":
 		encoded, err = encodeConfigMap(node)
 	case "Secret":
@@ -77,10 +72,11 @@ func HashRNode(node *yaml.RNode) (string, error) {
 	if err != nil {
 		return "", err
 	}
-	return Encode(Hash(encoded))
+	return encode(hex256(encoded))
 }
 
-func getNodeValues(node *yaml.RNode, paths []string) (map[string]interface{}, error) {
+func getNodeValues(
+	node *yaml.RNode, paths []string) (map[string]interface{}, error) {
 	values := make(map[string]interface{})
 	for _, p := range paths {
 		vn, err := node.Pipe(yaml.Lookup(p))
@@ -117,8 +113,11 @@ func encodeConfigMap(node *yaml.RNode) (string, error) {
 	if err != nil {
 		return "", err
 	}
-	m := map[string]interface{}{"kind": "ConfigMap", "name": values["metadata/name"],
-		"data": values["data"]}
+	m := map[string]interface{}{
+		"kind": "ConfigMap",
+		"name": values["metadata/name"],
+		"data": values["data"],
+	}
 	if _, ok := values["binaryData"].(map[string]interface{}); ok {
 		m["binaryData"] = values["binaryData"]
 	}

api/hasher/hasher_test.go

@@ -32,10 +32,10 @@ func TestSortArrayAndComputeHash(t *testing.T) {
 	}
 }
 
-func TestHash(t *testing.T) {
+func Test_hex256(t *testing.T) {
 	// hash the empty string to be sure that sha256 is being used
 	expect := "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
-	sum := Hash("")
+	sum := hex256("")
 	if expect != sum {
 		t.Errorf("expected hash %q but got %q", expect, sum)
 	}
@@ -56,7 +56,7 @@ kind: ConfigMap`, "6ct58987ht", ""},
 		{"one key", `
 apiVersion: v1
 kind: ConfigMap
-data: 
+data:
   one: ""`, "9g67k2htb6", ""},
 		// three keys (tests sorting order)
 		{"three keys", `
@@ -93,17 +93,17 @@ data:
 binaryData:
   two: ""`, "698h7c7t9m", ""},
 	}
-
+	h := &Hasher{}
 	for _, c := range cases {
 		node, err := yaml.Parse(c.cmYaml)
 		if err != nil {
 			t.Fatal(err)
 		}
-		h, err := HashRNode(node)
+		hashed, err := h.Hash(node)
 		if SkipRest(t, c.desc, err, c.err) {
 			continue
 		}
-		if c.hash != h {
+		if c.hash != hashed {
 			t.Errorf("case %q, expect hash %q but got %q", c.desc, c.hash, h)
 		}
 	}
@@ -154,35 +154,34 @@ type: my-type
 data:
   one: ""`, "74bd68bm66", ""},
 	}
-
+	h := &Hasher{}
 	for _, c := range cases {
 		node, err := yaml.Parse(c.secretYaml)
 		if err != nil {
 			t.Fatal(err)
 		}
-		h, err := HashRNode(node)
+		hashed, err := h.Hash(node)
 		if SkipRest(t, c.desc, err, c.err) {
 			continue
 		}
-		if c.hash != h {
+		if c.hash != hashed {
 			t.Errorf("case %q, expect hash %q but got %q", c.desc, c.hash, h)
 		}
 	}
 }
 
-func TestUnstructuredHash(t *testing.T) {
-	cases := []struct {
-		desc         string
-		unstructured string
-		hash         string
-		err          string
+func TestBasicHash(t *testing.T) {
+	cases := map[string]struct {
+		res  string
+		hash string
+		err  string
 	}{
-		{"minimal", `
+		"minimal": {`
 apiVersion: test/v1
 kind: TestResource
 metadata:
   name: my-resource`, "244782mkb7", ""},
-		{"with spec", `
+		"with spec": {`
 apiVersion: test/v1
 kind: TestResource
 metadata:
@@ -191,19 +190,22 @@ spec:
   foo: 1
   bar: abc`, "59m2mdccg4", ""},
 	}
-
-	for _, c := range cases {
-		node, err := yaml.Parse(c.unstructured)
-		if err != nil {
-			t.Fatal(err)
-		}
-		h, err := HashRNode(node)
-		if SkipRest(t, c.desc, err, c.err) {
-			continue
-		}
-		if c.hash != h {
-			t.Errorf("case %q, expect hash %q but got %q", c.desc, c.hash, h)
-		}
+	h := &Hasher{}
+	for n := range cases {
+		c := cases[n]
+		t.Run(n, func(t *testing.T) {
+			node, err := yaml.Parse(c.res)
+			if err != nil {
+				t.Fatal(err)
+			}
+			hashed, err := h.Hash(node)
+			if SkipRest(t, n, err, c.err) {
+				return
+			}
+			if c.hash != hashed {
+				t.Errorf("case %q, expect hash %q but got %q", n, c.hash, h)
+			}
+		})
 	}
 }
 
@@ -222,7 +224,7 @@ kind: ConfigMap`, `{"data":"","kind":"ConfigMap","name":""}`, ""},
 		{"one key", `
 apiVersion: v1
 kind: ConfigMap
-data: 
+data:
   one: ""`, `{"data":{"one":""},"kind":"ConfigMap","name":""}`, ""},
 		// three keys (tests sorting order)
 		{"three keys", `
@@ -334,9 +336,10 @@ data:
 	}
 }
 
-// SkipRest returns true if there was a non-nil error or if we expected an error that didn't happen,
-// and logs the appropriate error on the test object.
-// The return value indicates whether we should skip the rest of the test case due to the error result.
+// SkipRest returns true if there was a non-nil error or if we expected an
+// error that didn't happen, and logs the appropriate error on the test object.
+// The return value indicates whether we should skip the rest of the test case
+// due to the error result.
 func SkipRest(t *testing.T, desc string, err error, contains string) bool {
 	if err != nil {
 		if len(contains) == 0 {

api/ifc/ifc.go

@@ -5,8 +5,8 @@
 package ifc
 
 import (
-	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/types"
+	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
 // Validator provides functions to validate annotations and labels
@@ -38,87 +38,10 @@ type Loader interface {
 	Cleanup() error
 }
 
-// Kunstructured represents a Kubernetes Resource Model object.
-type Kunstructured interface {
-	// Several uses.
-	Copy() Kunstructured
-
-	// GetAnnotations returns the k8s annotations.
-	GetAnnotations() map[string]string
-
-	// GetData returns a top-level "data" field, as in a ConfigMap.
-	GetDataMap() map[string]string
-
-	// Used by ResAccumulator and ReplacementTransformer.
-	GetFieldValue(string) (interface{}, error)
-
-	// Used by Resource.OrgId
-	GetGvk() resid.Gvk
-
-	// Used by resource.Factory.SliceFromBytes
-	GetKind() string
-
-	// GetLabels returns the k8s labels.
-	GetLabels() map[string]string
-
-	// Used by Resource.CurId and resource factory.
-	GetName() string
-
-	// Used by special case code in
-	// ResMap.SubsetThatCouldBeReferencedByResource
-	GetSlice(path string) ([]interface{}, error)
-
-	// GetString returns the value of a string field.
-	// Used by Resource.GetNamespace
-	GetString(string) (string, error)
-
-	// Several uses.
-	Map() map[string]interface{}
-
-	// Used by Resource.AsYAML and Resource.String
-	MarshalJSON() ([]byte, error)
-
-	// Used by resWrangler.Select
-	MatchesAnnotationSelector(selector string) (bool, error)
-
-	// Used by resWrangler.Select
-	MatchesLabelSelector(selector string) (bool, error)
-
-	// SetAnnotations replaces the k8s annotations.
-	SetAnnotations(map[string]string)
-
-	// SetDataMap sets a top-level "data" field, as in a ConfigMap.
-	SetDataMap(map[string]string)
-
-	// Used by PatchStrategicMergeTransformer.
-	SetGvk(resid.Gvk)
-
-	// SetLabels replaces the k8s labels.
-	SetLabels(map[string]string)
-
-	// SetName changes the name.
-	SetName(string)
-
-	// SetNamespace changes the namespace.
-	SetNamespace(string)
-
-	// Needed, for now, by kyaml/filtersutil.ApplyToJSON.
-	UnmarshalJSON([]byte) error
-}
-
-// KunstructuredFactory makes instances of Kunstructured.
-type KunstructuredFactory interface {
-	SliceFromBytes([]byte) ([]Kunstructured, error)
-	FromMap(m map[string]interface{}) Kunstructured
-	Hasher() KunstructuredHasher
-	MakeConfigMap(kvLdr KvLoader, args *types.ConfigMapArgs) (Kunstructured, error)
-	MakeSecret(kvLdr KvLoader, args *types.SecretArgs) (Kunstructured, error)
-}
-
-// KunstructuredHasher returns a hash of the argument
+// KustHasher returns a hash of the argument
 // or an error.
-type KunstructuredHasher interface {
-	Hash(Kunstructured) (string, error)
+type KustHasher interface {
+	Hash(*yaml.RNode) (string, error)
 }
 
 // See core.v1.SecretTypeOpaque

api/internal/accumulator/loadconfigfromcrds.go

@@ -9,7 +9,6 @@ import (
 
 	"github.com/go-openapi/spec"
 	"github.com/pkg/errors"
-	"k8s.io/kube-openapi/pkg/common"
 	"sigs.k8s.io/kustomize/api/filesys"
 	"sigs.k8s.io/kustomize/api/ifc"
 	"sigs.k8s.io/kustomize/api/internal/plugins/builtinconfig"
@@ -18,8 +17,16 @@ import (
 	"sigs.k8s.io/yaml"
 )
 
-type myProperties map[string]spec.Schema
-type nameToApiMap map[string]common.OpenAPIDefinition
+// OpenAPIDefinition describes single type.
+// Normally these definitions are auto-generated using gen-openapi.
+// Same as in k8s.io / kube-openapi / pkg / common.
+type OpenAPIDefinition struct {
+	Schema       spec.Schema
+	Dependencies []string
+}
+
+type myProperties = map[string]spec.Schema
+type nameToApiMap map[string]OpenAPIDefinition
 
 // LoadConfigFromCRDs parse CRD schemas from paths into a TransformerConfig
 func LoadConfigFromCRDs(
@@ -162,7 +169,7 @@ func loadCrdIntoConfig(
 				err = theConfig.AddNamereferenceFieldSpec(
 					builtinconfig.NameBackReferences{
 						Gvk: resid.Gvk{Kind: kind, Version: version},
-						FieldSpecs: []types.FieldSpec{
+						Referrers: []types.FieldSpec{
 							makeFs(theGvk, append(path, propName, nameKey))},
 					})
 				if err != nil {

api/internal/accumulator/loadconfigfromcrds_test.go

@@ -8,10 +8,9 @@ import (
 	"testing"
 
 	"sigs.k8s.io/kustomize/api/filesys"
-	"sigs.k8s.io/kustomize/api/loader"
-
 	. "sigs.k8s.io/kustomize/api/internal/accumulator"
 	"sigs.k8s.io/kustomize/api/internal/plugins/builtinconfig"
+	"sigs.k8s.io/kustomize/api/loader"
 	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/types"
 )
@@ -140,21 +139,19 @@ func TestLoadCRDs(t *testing.T) {
 	nbrs := []builtinconfig.NameBackReferences{
 		{
 			Gvk: resid.Gvk{Kind: "Secret", Version: "v1"},
-			FieldSpecs: []types.FieldSpec{
+			Referrers: []types.FieldSpec{
 				{
-					CreateIfNotPresent: false,
-					Gvk:                resid.Gvk{Kind: "MyKind"},
-					Path:               "spec/secretRef/name",
+					Gvk:  resid.Gvk{Kind: "MyKind"},
+					Path: "spec/secretRef/name",
 				},
 			},
 		},
 		{
 			Gvk: resid.Gvk{Kind: "Bee", Version: "v1beta1"},
-			FieldSpecs: []types.FieldSpec{
+			Referrers: []types.FieldSpec{
 				{
-					CreateIfNotPresent: false,
-					Gvk:                resid.Gvk{Kind: "MyKind"},
-					Path:               "spec/beeRef/name",
+					Gvk:  resid.Gvk{Kind: "MyKind"},
+					Path: "spec/beeRef/name",
 				},
 			},
 		},

api/internal/accumulator/namereferencetransformer.go

@@ -4,23 +4,29 @@
 package accumulator
 
 import (
+	"fmt"
 	"log"
 
 	"sigs.k8s.io/kustomize/api/filters/nameref"
 	"sigs.k8s.io/kustomize/api/internal/plugins/builtinconfig"
 	"sigs.k8s.io/kustomize/api/resmap"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
+	"sigs.k8s.io/kustomize/api/resource"
 )
 
 type nameReferenceTransformer struct {
 	backRefs []builtinconfig.NameBackReferences
 }
 
+const doDebug = false
+
 var _ resmap.Transformer = &nameReferenceTransformer{}
 
+type filterMap map[*resource.Resource][]nameref.Filter
+
 // newNameReferenceTransformer constructs a nameReferenceTransformer
 // with a given slice of NameBackReferences.
-func newNameReferenceTransformer(br []builtinconfig.NameBackReferences) resmap.Transformer {
+func newNameReferenceTransformer(
+	br []builtinconfig.NameBackReferences) resmap.Transformer {
 	if br == nil {
 		log.Fatal("backrefs not expected to be nil")
 	}
@@ -33,13 +39,61 @@ func newNameReferenceTransformer(br []builtinconfig.NameBackReferences) resmap.T
 //
 // For example, a HorizontalPodAutoscaler (HPA)
 // necessarily refers to a Deployment, the thing that
-// the HPA scales. The Deployment name might change
-// (e.g. prefix added), and the reference in the HPA
-// has to be fixed.
+// an HPA scales. In this case:
 //
-// In the outer loop over the ResMap below, say we
-// encounter a specific HPA. Then, in scanning backrefs,
-// we encounter an entry like
+//   - the HPA instance is the Referrer,
+//   - the Deployment instance is the ReferralTarget.
+//
+// If the Deployment's name changes, e.g. a prefix is added,
+// then the HPA's reference to the Deployment must be fixed.
+//
+func (t *nameReferenceTransformer) Transform(m resmap.ResMap) error {
+	fMap := t.determineFilters(m.Resources())
+	debug(fMap)
+	for r, fList := range fMap {
+		c := m.SubsetThatCouldBeReferencedByResource(r)
+		for _, f := range fList {
+			f.Referrer = r
+			f.ReferralCandidates = c
+			if err := f.Referrer.ApplyFilter(f); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+func debug(fMap filterMap) {
+	if !doDebug {
+		return
+	}
+	fmt.Printf("filterMap has %d entries:\n", len(fMap))
+	rCount := 0
+	for r, fList := range fMap {
+		yml, _ := r.AsYAML()
+		rCount++
+		fmt.Printf(`
+---- %3d. possible referrer -------------
+%s
+---------`, rCount, string(yml),
+		)
+		for i, f := range fList {
+			fmt.Printf(`
+%3d/%3d update: %s
+          from: %s
+`, rCount, i+1, f.NameFieldToUpdate.Path, f.ReferralTarget,
+			)
+		}
+	}
+}
+
+// Produce a map from referrer resources that might need to be fixed
+// to filters that might fix them.  The keys to this map are potential
+// referrers, so won't include resources like ConfigMap or Secret.
+//
+// In the inner loop over the resources below, say we
+// encounter an HPA instance. Then, in scanning the set
+// of all known backrefs, we encounter an entry like
 //
 //   - kind: Deployment
 //     fieldSpecs:
@@ -48,54 +102,53 @@ func newNameReferenceTransformer(br []builtinconfig.NameBackReferences) resmap.T
 //
 // This entry says that an HPA, via its
 // 'spec/scaleTargetRef/name' field, may refer to a
-// Deployment.  This match to HPA means we may need to
-// modify the value in its 'spec/scaleTargetRef/name'
-// field, by searching for the thing it refers to,
-// and getting its new name.
+// Deployment.
 //
-// As a filter, and search optimization, we compute a
-// subset of all resources that the HPA could refer to,
-// by excluding objects from other namespaces, and
-// excluding objects that don't have the same prefix-
-// suffix mods as the HPA.
-//
-// We look in this subset for all Deployment objects
-// with a resId that has a Name matching the field value
-// present in the HPA.  If no match do nothing; if more
-// than one match, it's an error.
-//
-// We overwrite the HPA name field with the value found
-// in the Deployment's name field (the name in the raw
-// object - the modified name - not the unmodified name
-// in the Deployment's resId).
-//
-// This process assumes that the name stored in a ResId
-// (the ResMap key) isn't modified by name transformers.
-// Name transformers should only modify the name in the
-// body of the resource object (the value in the ResMap).
-//
-func (o *nameReferenceTransformer) Transform(m resmap.ResMap) error {
-	// TODO: Too much looping, here and in transitive calls.
-	for _, referrer := range m.Resources() {
-		var candidates resmap.ResMap
-		for _, target := range o.backRefs {
-			for _, fSpec := range target.FieldSpecs {
-				if referrer.OrgId().IsSelected(&fSpec.Gvk) {
-					if candidates == nil {
-						candidates = m.SubsetThatCouldBeReferencedByResource(referrer)
-					}
-					err := filtersutil.ApplyToJSON(nameref.Filter{
-						FieldSpec:          fSpec,
-						Referrer:           referrer,
-						Target:             target.Gvk,
-						ReferralCandidates: candidates,
-					}, referrer)
-					if err != nil {
-						return err
+// This means that a filter will need to hunt for the right Deployment,
+// obtain it's new name, and write that name into the HPA's
+// 'spec/scaleTargetRef/name' field. Return a filter that can do that.
+func (t *nameReferenceTransformer) determineFilters(
+	resources []*resource.Resource) (fMap filterMap) {
+	fMap = make(filterMap)
+	for _, backReference := range t.backRefs {
+		for _, referrerSpec := range backReference.Referrers {
+			for _, res := range resources {
+				if res.OrgId().IsSelected(&referrerSpec.Gvk) {
+					// If this is true, the res might be a referrer, and if
+					// so, the name reference it holds might need an update.
+					if resHasField(res, referrerSpec.Path) {
+						// Optimization - the referrer has the field
+						// that might need updating.
+						fMap[res] = append(fMap[res], nameref.Filter{
+							// Name field to write in the Referrer.
+							// If the path specified here isn't found in
+							// the Referrer, nothing happens (no error,
+							// no field creation).
+							NameFieldToUpdate: referrerSpec,
+							// Specification of object class to read from.
+							// Always read from metadata/name field.
+							ReferralTarget: backReference.Gvk,
+						})
 					}
 				}
 			}
 		}
 	}
-	return nil
+	return fMap
+}
+
+// TODO: check res for field existence here to avoid extra work.
+// res.GetFieldValue, which uses yaml.Lookup under the hood, doesn't know
+// how to parse fieldspec-style paths that make no distinction
+// between maps and sequences.  This means it cannot lookup commonly
+// used "indeterminate" paths like
+//    spec/containers/env/valueFrom/configMapKeyRef/name
+// ('containers' is a list, not a map).
+// However, the fieldspec filter does know how to handle this;
+// extract that code and call it here?
+func resHasField(res *resource.Resource, path string) bool {
+	return true
+	// fld := strings.Join(utils.PathSplitter(path), ".")
+	// _, e := res.GetFieldValue(fld)
+	// return e == nil
 }

api/internal/accumulator/namereferencetransformer_test.go

@@ -14,6 +14,8 @@ import (
 	resmaptest_test "sigs.k8s.io/kustomize/api/testutils/resmaptest"
 )
 
+const notEqualErrFmt = "expected (self) doesn't match actual (other): %v"
+
 func TestNameReferenceHappyRun(t *testing.T) {
 	m := resmaptest_test.NewRmBuilderDefault(t).AddWithName(
 		"cm1",
@@ -470,7 +472,7 @@ func TestNameReferenceHappyRun(t *testing.T) {
 	}
 
 	if err = expected.ErrorIfNotEqualLists(m); err != nil {
-		t.Fatalf("actual doesn't match expected: %v", err)
+		t.Fatalf(notEqualErrFmt, err)
 	}
 }
 
@@ -518,7 +520,19 @@ func TestNameReferenceUnhappyRun(t *testing.T) {
 						},
 					},
 				}).ResMap(),
-			expectedErr: "cannot find field 'name' in node"},
+			expectedErr: `updating name reference in 'rules/resourceNames' field of ` +
+				`'rbac.authorization.k8s.io_v1_ClusterRole|~X|cr'` +
+				`: considering field 'rules/resourceNames' of object
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: cr
+rules:
+- resourceNames:
+    foo: bar
+  resources:
+  - secrets
+: visit traversal on path: [resourceNames]: path config error; no 'name' field in node`},
 	}
 
 	nrt := newNameReferenceTransformer(builtinconfig.MakeDefaultConfig().NameReference)
@@ -529,7 +543,7 @@ func TestNameReferenceUnhappyRun(t *testing.T) {
 		}
 
 		if !strings.Contains(err.Error(), test.expectedErr) {
-			t.Fatalf("Incorrect error.\nExpected: %s, but got %v",
+			t.Fatalf("Incorrect error.\nExpected:\n %s\nGot:\n%v",
 				test.expectedErr, err)
 		}
 	}
@@ -587,7 +601,7 @@ func TestNameReferencePersistentVolumeHappyRun(t *testing.T) {
 	v2.AppendRefBy(c2.CurId())
 
 	if err := m1.ErrorIfNotEqualLists(m2); err != nil {
-		t.Fatalf("actual doesn't match expected: %v", err)
+		t.Fatalf(notEqualErrFmt, err)
 	}
 }
 
@@ -721,8 +735,9 @@ func TestNameReferenceNamespace(t *testing.T) {
 		t.Fatalf("unexpected error: %v", err)
 	}
 
+	m.RemoveBuildAnnotations()
 	if err = expected.ErrorIfNotEqualLists(m); err != nil {
-		t.Fatalf("actual doesn't match expected: %v", err)
+		t.Fatalf(notEqualErrFmt, err)
 	}
 }
 
@@ -882,8 +897,9 @@ func TestNameReferenceClusterWide(t *testing.T) {
 		t.Fatalf("unexpected error: %v", err)
 	}
 
+	m.RemoveBuildAnnotations()
 	if err = expected.ErrorIfNotEqualLists(m); err != nil {
-		t.Fatalf("actual doesn't match expected: %v", err)
+		t.Fatalf(notEqualErrFmt, err)
 	}
 }
 
@@ -1008,8 +1024,9 @@ func TestNameReferenceNamespaceTransformation(t *testing.T) {
 		t.Fatalf("unexpected error: %v", err)
 	}
 
+	m.RemoveBuildAnnotations()
 	if err = expected.ErrorIfNotEqualLists(m); err != nil {
-		t.Fatalf("actual doesn't match expected: %v", err)
+		t.Fatalf(notEqualErrFmt, err)
 	}
 }
 
@@ -1044,7 +1061,8 @@ func TestNameReferenceCandidateSelection(t *testing.T) {
 		t.Fatalf("unexpected error: %v", err)
 	}
 
+	m.RemoveBuildAnnotations()
 	if err = expected.ErrorIfNotEqualLists(m); err != nil {
-		t.Fatalf("actual doesn't match expected: %v", err)
+		t.Fatalf(notEqualErrFmt, err)
 	}
 }

api/internal/accumulator/refvartransformer.go

@@ -4,19 +4,15 @@
 package accumulator
 
 import (
-	expansion2 "sigs.k8s.io/kustomize/api/internal/accumulator/expansion"
-
 	"sigs.k8s.io/kustomize/api/filters/refvar"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
 )
 
 type refVarTransformer struct {
 	varMap            map[string]interface{}
 	replacementCounts map[string]int
 	fieldSpecs        []types.FieldSpec
-	mappingFunc       func(string) interface{}
 }
 
 // newRefVarTransformer returns a new refVarTransformer
@@ -35,8 +31,7 @@ func newRefVarTransformer(
 func (rv *refVarTransformer) UnusedVars() []string {
 	var unused []string
 	for k := range rv.varMap {
-		_, ok := rv.replacementCounts[k]
-		if !ok {
+		if _, ok := rv.replacementCounts[k]; !ok {
 			unused = append(unused, k)
 		}
 	}
@@ -46,14 +41,13 @@ func (rv *refVarTransformer) UnusedVars() []string {
 // Transform replaces $(VAR) style variables with values.
 func (rv *refVarTransformer) Transform(m resmap.ResMap) error {
 	rv.replacementCounts = make(map[string]int)
-	rv.mappingFunc = expansion2.MappingFuncFor(
-		rv.replacementCounts, rv.varMap)
+	mf := refvar.MakePrimitiveReplacer(rv.replacementCounts, rv.varMap)
 	for _, res := range m.Resources() {
 		for _, fieldSpec := range rv.fieldSpecs {
-			err := filtersutil.ApplyToJSON(refvar.Filter{
-				MappingFunc: rv.mappingFunc,
+			err := res.ApplyFilter(refvar.Filter{
+				MappingFunc: mf,
 				FieldSpec:   fieldSpec,
-			}, res)
+			})
 			if err != nil {
 				return err
 			}

api/internal/accumulator/refvartransformer_test.go

@@ -23,14 +23,12 @@ func TestRefVarTransformer(t *testing.T) {
 		res    resmap.ResMap
 		unused []string
 	}
-	testCases := []struct {
-		description string
-		given       given
-		expected    expected
-		errMessage  string
+	testCases := map[string]struct {
+		given      given
+		expected   expected
+		errMessage string
 	}{
-		{
-			description: "var replacement in map[string]",
+		"var replacement in map[string]": {
 			given: given{
 				varMap: map[string]interface{}{
 					"FOO": "replacementForFoo",
@@ -105,8 +103,7 @@ func TestRefVarTransformer(t *testing.T) {
 				unused: []string{"BAR"},
 			},
 		},
-		{
-			description: "var replacement panic in map[string]",
+		"var replacement panic in map[string]": {
 			given: given{
 				varMap: map[string]interface{}{},
 				fs: []types.FieldSpec{
@@ -123,11 +120,17 @@ func TestRefVarTransformer(t *testing.T) {
 							"slice": []interface{}{5}, // noticeably *not* a []string
 						}}).ResMap(),
 			},
-			errMessage: `obj '{"apiVersion": "v1", "data": {"slice": [5]}, "kind": "ConfigMap", "metadata": {"name": "cm1"}}
-' at path 'data/slice': invalid value type expect a string`,
+			errMessage: `considering field 'data/slice' of object
+apiVersion: v1
+data:
+  slice:
+  - 5
+kind: ConfigMap
+metadata:
+  name: cm1
+: invalid value type expect a string`,
 		},
-		{
-			description: "var replacement in nil",
+		"var replacement in nil": {
 			given: given{
 				varMap: map[string]interface{}{},
 				fs: []types.FieldSpec{
@@ -159,20 +162,18 @@ func TestRefVarTransformer(t *testing.T) {
 		},
 	}
 
-	for _, tc := range testCases {
-		t.Run(tc.description, func(t *testing.T) {
-			// arrange
+	for tn, tc := range testCases {
+		t.Run(tn, func(t *testing.T) {
 			tr := newRefVarTransformer(tc.given.varMap, tc.given.fs)
-
-			// act
 			err := tr.Transform(tc.given.res)
-
-			// assert
 			if tc.errMessage != "" {
 				if err == nil {
 					t.Fatalf("missing expected error %v", tc.errMessage)
 				} else if err.Error() != tc.errMessage {
-					t.Fatalf("actual error doesn't match expected error: \nACTUAL: %v\nEXPECTED: %v", err.Error(), tc.errMessage)
+					t.Fatalf(`actual error doesn't match expected error:
+ACTUAL: %v
+EXPECTED: %v`,
+						err.Error(), tc.errMessage)
 				}
 			} else {
 				if err != nil {
@@ -182,7 +183,13 @@ func TestRefVarTransformer(t *testing.T) {
 				a, e := tc.given.res, tc.expected.res
 				if !reflect.DeepEqual(a, e) {
 					err = e.ErrorIfNotEqualLists(a)
-					t.Fatalf("actual doesn't match expected: \nACTUAL:\n%v\nEXPECTED:\n%v\nERR: %v", a, e, err)
+					t.Fatalf(`actual doesn't match expected:
+ACTUAL:
+%v
+EXPECTED:
+%v
+ERR: %v`,
+						a, e, err)
 				}
 			}
 		})

api/internal/accumulator/resaccumulator.go

@@ -59,6 +59,15 @@ func (ra *ResAccumulator) GetTransformerConfig() *builtinconfig.TransformerConfi
 	return ra.tConfig
 }
 
+// MergeVars accumulates vars into ResAccumulator.
+// A Var is a tuple of name, object reference and field reference.
+// This func takes a list of vars from the current kustomization file and
+// annotates the accumulated resources with the names of the vars that match
+// those resources.  E.g. if there's a var named "sam" that wants to get
+// its data from a ConfigMap named "james", and the resource list contains a
+// ConfigMap named "james", then that ConfigMap will be annotated with the
+// var name "sam".  Later this annotation is used to find the data for "sam"
+// by digging into a particular fieldpath of "james".
 func (ra *ResAccumulator) MergeVars(incoming []types.Var) error {
 	for _, v := range incoming {
 		targetId := resid.NewResIdWithNamespace(v.ObjRef.GVK(), v.ObjRef.Name, v.ObjRef.Namespace)
@@ -68,7 +77,7 @@ func (ra *ResAccumulator) MergeVars(incoming []types.Var) error {
 			// wildcard search on the namespace hence we still use GvknEquals
 			idMatcher = targetId.Equals
 		}
-		matched := ra.resMap.GetMatchingResourcesByOriginalId(idMatcher)
+		matched := ra.resMap.GetMatchingResourcesByAnyId(idMatcher)
 		if len(matched) > 1 {
 			return fmt.Errorf(
 				"found %d resId matches for var %s "+
@@ -104,12 +113,10 @@ func (ra *ResAccumulator) findVarValueFromResources(v types.Var) (interface{}, e
 						"field specified in var '%v' "+
 							"not found in corresponding resource", v)
 				}
-
 				return s, nil
 			}
 		}
 	}
-
 	return "", fmt.Errorf(
 		"var '%v' cannot be mapped to a field "+
 			"in the set of known resources", v)
@@ -125,10 +132,8 @@ func (ra *ResAccumulator) makeVarReplacementMap() (map[string]interface{}, error
 		if err != nil {
 			return nil, err
 		}
-
 		result[v.Name] = s
 	}
-
 	return result, nil
 }
 
@@ -159,6 +164,6 @@ func (ra *ResAccumulator) FixBackReferences() (err error) {
 	if ra.tConfig.NameReference == nil {
 		return nil
 	}
-	return ra.Transform(newNameReferenceTransformer(
-		ra.tConfig.NameReference))
+	return ra.Transform(
+		newNameReferenceTransformer(ra.tConfig.NameReference))
 }

api/internal/accumulator/resaccumulator_test.go

@@ -344,19 +344,21 @@ func TestResolveVarsWithNoambiguation(t *testing.T) {
 					},
 				},
 			}}).
+		// Make it seem like this resource
+		// went through a prefix transformer.
 		Add(map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "Service",
 			"metadata": map[string]interface{}{
-				"name": "backendOne",
+				"name": "sub-backendOne",
+				"annotations": map[string]interface{}{
+					"config.kubernetes.io/previousKinds":      "Service",
+					"config.kubernetes.io/previousNames":      "backendOne",
+					"config.kubernetes.io/previousNamespaces": "default",
+					"config.kubernetes.io/prefixes":           "sub-",
+				},
 			}}).ResMap()
 
-	// Make it seem like this resource
-	// went through a prefix transformer.
-	r := m.GetByIndex(1)
-	r.AddNamePrefix("sub-")
-	r.SetName("sub-backendOne") // original name remains "backendOne"
-
 	err = ra2.AppendAll(m)
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
@@ -398,7 +400,8 @@ func find(name string, resMap resmap.ResMap) *resource.Resource {
 func getCommand(r *resource.Resource) string {
 	var m map[string]interface{}
 	var c []interface{}
-	m, _ = r.Map()["spec"].(map[string]interface{})
+	resourceMap, _ := r.Map()
+	m, _ = resourceMap["spec"].(map[string]interface{})
 	m, _ = m["template"].(map[string]interface{})
 	m, _ = m["spec"].(map[string]interface{})
 	c, _ = m["containers"].([]interface{})

api/internal/conflict/factory.go

@@ -1,23 +0,0 @@
-// Copyright 2020 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package conflict
-
-import (
-	"sigs.k8s.io/kustomize/api/resid"
-	"sigs.k8s.io/kustomize/api/resource"
-)
-
-type cdFactory struct{}
-
-var _ resource.ConflictDetectorFactory = &cdFactory{}
-
-// NewFactory returns a new conflict detector factory.
-func NewFactory() resource.ConflictDetectorFactory {
-	return &cdFactory{}
-}
-
-// New returns an instance of smPatchMergeOnlyDetector.
-func (c cdFactory) New(_ resid.Gvk) (resource.ConflictDetector, error) {
-	return &smPatchMergeOnlyDetector{}, nil
-}

api/internal/conflict/smpatchmergeonlydetector.go

@@ -1,33 +0,0 @@
-// Copyright 2020 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package conflict
-
-import (
-	"sigs.k8s.io/kustomize/api/resource"
-)
-
-// smPatchMergeOnlyDetector ignores conflicts,
-// but does real strategic merge patching.
-// This is part of an effort to eliminate dependence on
-// apimachinery package to allow kustomize integration
-// into kubectl (#2506 and #1500)
-type smPatchMergeOnlyDetector struct{}
-
-var _ resource.ConflictDetector = &smPatchMergeOnlyDetector{}
-
-func (c *smPatchMergeOnlyDetector) HasConflict(
-	_, _ *resource.Resource) (bool, error) {
-	return false, nil
-}
-
-// There's at least one case that doesn't work.  Suppose one has a
-// Deployment with a volume with the bizarre "emptyDir: {}" entry.
-// If you want to get rid of this entry via a patch containing
-// the entry "emptyDir: null", then the following won't work,
-// because null entries are eliminated.
-func (c *smPatchMergeOnlyDetector) MergePatches(
-	r, patch *resource.Resource) (*resource.Resource, error) {
-	err := r.ApplySmPatch(patch)
-	return r, err
-}

api/internal/crawl/cmd/backend/main.go

@@ -4,8 +4,9 @@ import (
 	"context"
 	"log"
 	"os"
-	server "sigs.k8s.io/kustomize/api/internal/crawl/backend"
 	"strconv"
+
+	server "sigs.k8s.io/kustomize/api/internal/crawl/backend"
 )
 
 func main() {

api/internal/crawl/crawler/github/crawler.go

@@ -81,7 +81,7 @@ func (gc githubCrawler) Crawl(ctx context.Context,
 	output chan<- crawler.CrawledDocument, seen utils.SeenMap) error {
 
 	ranges := []RangeWithin{
-		RangeWithin{
+		{
 			start: uint64(0),
 			end:   githubMaxFileSize,
 		},

api/internal/crawl/crawler/github/split_search_ranges_test.go

@@ -96,6 +96,6 @@ func TestRangeSizes(t *testing.T) {
 	returnedResult := RangeSizes(s)
 	expectedResult := RangeWithin{uint64(2365), uint64(10000)}
 	if !reflect.DeepEqual(returnedResult, expectedResult) {
-		t.Errorf("RangeSizes expected (%v), got (%v)",expectedResult, returnedResult)
+		t.Errorf("RangeSizes expected (%v), got (%v)", expectedResult, returnedResult)
 	}
 }

api/internal/crawl/go.mod

@@ -1,6 +1,6 @@
 module sigs.k8s.io/kustomize/api/internal/crawl
 
-go 1.15
+go 1.16
 
 require (
 	github.com/elastic/go-elasticsearch/v6 v6.8.5

api/internal/crawl/go.sum

@@ -1,40 +1,20 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
-github.com/360EntSecGroup-Skylar/excelize v1.4.1/go.mod h1:vnax29X2usfl7HHkBrX5EvSCJcmH3dT9luvxzu8iGAE=
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@@ -42,14 +22,10 @@ github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMn
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@@ -57,31 +33,18 @@ github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZm
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@@ -90,13 +53,11 @@ github.com/go-openapi/analysis v0.19.5/go.mod h1:hkEAkxagaIvIP7VTn8ygJNkd4kAYON2
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@@ -110,7 +71,6 @@ github.com/go-openapi/loads v0.19.4/go.mod h1:zZVHonKd8DXyxyw4yfnVjPzBjIQcLt0CCs
 github.com/go-openapi/runtime v0.0.0-20180920151709-4f900dc2ade9/go.mod h1:6v9a6LTXWQCdL8k1AO3cvqx5OtZY/Y9wKTgaoP6YRfA=
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@@ -122,7 +82,6 @@ github.com/go-openapi/strfmt v0.18.0/go.mod h1:P82hnJI0CXkErkXi8IKjPbNBM6lV6+5pL
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@@ -132,123 +91,48 @@ github.com/go-openapi/validate v0.18.0/go.mod h1:Uh4HdOzKt19xGIGm1qHf/ofbX1YQ4Y+
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@@ -494,51 +257,19 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8
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-gopkg.in/yaml.v2 v2.2.4 h1:/eiJrUcujPVeJ3xlSWaiNi3uSVmDGBK1pDHUHAnao1I=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
-gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
-k8s.io/api v0.17.0 h1:H9d/lw+VkZKEVIUc8F3wgiQ+FUXTTr21M87jXLU7yqM=
-k8s.io/api v0.17.0/go.mod h1:npsyOePkeP0CPwyGfXDHxvypiYMJxBWAMpQxCaJ4ZxI=
-k8s.io/apimachinery v0.17.0 h1:xRBnuie9rXcPxUkDizUsGvPf1cnlZCFu210op7J7LJo=
-k8s.io/apimachinery v0.17.0/go.mod h1:b9qmWdKlLuU9EBh+06BtLcSf/Mu89rWL33naRxs1uZg=
-k8s.io/client-go v0.17.0 h1:8QOGvUGdqDMFrm9sD6IUFl256BcffynGoe80sxgTEDg=
-k8s.io/client-go v0.17.0/go.mod h1:TYgR6EUHs6k45hb6KWjVD6jFZvJV4gHDikv/It0xz+k=
-k8s.io/gengo v0.0.0-20190128074634-0689ccc1d7d6/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
-k8s.io/klog v0.0.0-20181102134211-b9b56d5dfc92/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
-k8s.io/klog v0.3.0/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
-k8s.io/klog v1.0.0 h1:Pt+yjF5aB1xDSVbau4VsWe+dQNzA0qv1LlXdC2dF6Q8=
-k8s.io/klog v1.0.0/go.mod h1:4Bi6QPql/J/LkTDqv7R/cd3hPo4k2DG6Ptcz060Ez5I=
-k8s.io/kube-openapi v0.0.0-20191107075043-30be4d16710a h1:UcxjrRMyNx/i/y8G7kPvLyy7rfbeuf1PYyBf973pgyU=
-k8s.io/kube-openapi v0.0.0-20191107075043-30be4d16710a/go.mod h1:1TqjTSzOxsLGIKfj0lK8EeCP7K1iUG65v09OM0/WG5E=
-k8s.io/utils v0.0.0-20191114184206-e782cd3c129f/go.mod h1:sZAwmy6armz5eXlNoLmJcl4F1QuKu7sr+mFQ0byX7Ew=
-mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed/go.mod h1:Xkxe497xwlCKkIaQYRfC7CSLworTXY9RMqwhhCm+8Nc=
-mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b/go.mod h1:2odslEg/xrtNQqCYg2/jCoyKnw3vv5biOc3JnIcYfL4=
-mvdan.cc/unparam v0.0.0-20190720180237-d51796306d8f/go.mod h1:4G1h5nDURzA3bwVMZIVpwbkw+04kSxk3rAtzlimaUJw=
-sigs.k8s.io/kustomize/kyaml v0.10.5 h1:PbJcsZsEM7O3hHtUWTR+4WkHVbQRW9crSy75or1gRbI=
-sigs.k8s.io/kustomize/kyaml v0.10.5/go.mod h1:P6Oy/ah/GZMKzJMIJA2a3/bc8YrBkuL5kJji13PSIzY=
-sigs.k8s.io/structured-merge-diff v0.0.0-20190525122527-15d366b2352e/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
-sigs.k8s.io/yaml v1.1.0 h1:4A07+ZFc2wgJwo8YNlQpr1rVlgUDlxXHhPJciaPY5gs=
-sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
+sigs.k8s.io/kustomize/kyaml v0.10.17 h1:4zrV0ym5AYa0e512q7K3Wp1u7mzoWW0xR3UHJcGWGIg=
+sigs.k8s.io/kustomize/kyaml v0.10.17/go.mod h1:mlQFagmkm1P+W4lZJbJ/yaxMd8PqMRSC4cPcfUVt5Hg=
 sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=
 sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=
-sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=

api/internal/crawl/index/elasticsearch.go

@@ -191,7 +191,8 @@ func (idx *index) Put(uniqueID string, doc interface{}) error {
 	}
 
 	if exists {
-		docBytes, err := json.Marshal(doc)
+		var docBytes []byte
+		docBytes, err = json.Marshal(doc)
 		if err != nil {
 			return err
 		}
@@ -204,12 +205,14 @@ func (idx *index) Put(uniqueID string, doc interface{}) error {
 			Body:       bytes.NewReader(body),
 			DocumentID: uniqueID,
 		}
-		res, err := req.Do(idx.ctx, idx.client)
+		var res *esapi.Response
+		res, err = req.Do(idx.ctx, idx.client)
 
 		err = idx.responseErrorOrNil("could not update document",
 			res, err, ignoreResponseBody)
 	} else {
-		body, err := json.Marshal(doc)
+		var body []byte
+		body, err = json.Marshal(doc)
 		if err != nil {
 			return err
 		}
@@ -219,7 +222,8 @@ func (idx *index) Put(uniqueID string, doc interface{}) error {
 			Body:       bytes.NewReader(body),
 			DocumentID: uniqueID,
 		}
-		res, err := req.Do(idx.ctx, idx.client)
+		var res *esapi.Response
+		res, err = req.Do(idx.ctx, idx.client)
 
 		err = idx.responseErrorOrNil("could not insert document",
 			res, err, ignoreResponseBody)

api/internal/generators/configmap.go

@@ -4,7 +4,6 @@
 package generators
 
 import (
-	"sigs.k8s.io/kustomize/api/filters/filtersutil"
 	"sigs.k8s.io/kustomize/api/ifc"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
@@ -38,14 +37,10 @@ func MakeConfigMap(
 	if err != nil {
 		return nil, err
 	}
-	for _, k := range filtersutil.SortedMapKeys(m) {
-		fldName, vrN := makeConfigMapValueRNode(m[k])
-		if _, err = rn.Pipe(
-			yaml.LookupCreate(yaml.MappingNode, fldName),
-			yaml.SetField(k, vrN)); err != nil {
-			return nil, err
-		}
+	if err = rn.LoadMapIntoConfigMapData(m); err != nil {
+		return nil, err
 	}
 	copyLabelsAndAnnotations(rn, args.Options)
-	return rn, err
+	setImmutable(rn, args.Options)
+	return rn, nil
 }

api/internal/generators/configmap_test.go

@@ -163,6 +163,7 @@ data:
 							"river": "Missouri",
 							"city":  "Iowa City",
 						},
+						Immutable: true,
 					},
 				},
 			},
@@ -183,6 +184,7 @@ data:
   b: y
   c: Hello World
   d: "true"
+immutable: true
 `,
 			},
 		},

api/internal/generators/secret.go

@@ -4,7 +4,6 @@
 package generators
 
 import (
-	"sigs.k8s.io/kustomize/api/filters/filtersutil"
 	"sigs.k8s.io/kustomize/api/ifc"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
@@ -51,14 +50,10 @@ func MakeSecret(
 	if err != nil {
 		return nil, err
 	}
-	for _, k := range filtersutil.SortedMapKeys(m) {
-		vrN := makeSecretValueRNode(m[k])
-		if _, err = rn.Pipe(
-			yaml.LookupCreate(yaml.MappingNode, yaml.DataField),
-			yaml.SetField(k, vrN)); err != nil {
-			return nil, err
-		}
+	if err = rn.LoadMapIntoSecretData(m); err != nil {
+		return nil, err
 	}
 	copyLabelsAndAnnotations(rn, args.Options)
-	return rn, err
+	setImmutable(rn, args.Options)
+	return rn, nil
 }

api/internal/generators/secret_test.go

@@ -170,6 +170,7 @@ data:
 							"river": "Missouri",
 							"city":  "Iowa City",
 						},
+						Immutable: true,
 					},
 				},
 			},
@@ -191,6 +192,7 @@ data:
   b: eQ==
   c: SGVsbG8gV29ybGQ=
   d: dHJ1ZQ==
+immutable: true
 `,
 			},
 		},

api/internal/generators/utils.go

@@ -4,13 +4,9 @@
 package generators
 
 import (
-	"encoding/base64"
 	"fmt"
-	"strings"
-	"unicode/utf8"
 
 	"github.com/go-errors/errors"
-	"sigs.k8s.io/kustomize/api/filters/filtersutil"
 	"sigs.k8s.io/kustomize/api/ifc"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/kustomize/kyaml/yaml"
@@ -66,13 +62,13 @@ func copyLabelsAndAnnotations(
 	if opts == nil {
 		return nil
 	}
-	for _, k := range filtersutil.SortedMapKeys(opts.Labels) {
+	for _, k := range yaml.SortedMapKeys(opts.Labels) {
 		v := opts.Labels[k]
 		if _, err := rn.Pipe(yaml.SetLabel(k, v)); err != nil {
 			return err
 		}
 	}
-	for _, k := range filtersutil.SortedMapKeys(opts.Annotations) {
+	for _, k := range yaml.SortedMapKeys(opts.Annotations) {
 		v := opts.Annotations[k]
 		if _, err := rn.Pipe(yaml.SetAnnotation(k, v)); err != nil {
 			return err
@@ -81,59 +77,15 @@ func copyLabelsAndAnnotations(
 	return nil
 }
 
-// In a secret, all data is base64 encoded, regardless of its conformance
-// or lack thereof to UTF-8.
-func makeSecretValueRNode(s string) *yaml.RNode {
-	yN := &yaml.Node{Kind: yaml.ScalarNode}
-	// Purposely don't use YAML tags to identify the data as being plain text or
-	// binary.  It kubernetes Secrets the values in the `data` map are expected
-	// to be base64 encoded, and in ConfigMaps that same can be said for the
-	// values in the `binaryData` field.
-	yN.Tag = yaml.NodeTagString
-	yN.Value = encodeBase64(s)
-	if strings.Contains(yN.Value, "\n") {
-		yN.Style = yaml.LiteralStyle
+func setImmutable(
+	rn *yaml.RNode, opts *types.GeneratorOptions) error {
+	if opts == nil {
+		return nil
 	}
-	return yaml.NewRNode(yN)
-}
-
-func makeConfigMapValueRNode(s string) (field string, rN *yaml.RNode) {
-	yN := &yaml.Node{Kind: yaml.ScalarNode}
-	yN.Tag = yaml.NodeTagString
-	if utf8.ValidString(s) {
-		field = yaml.DataField
-		yN.Value = s
-	} else {
-		field = yaml.BinaryDataField
-		yN.Value = encodeBase64(s)
-	}
-	if strings.Contains(yN.Value, "\n") {
-		yN.Style = yaml.LiteralStyle
-	}
-	return field, yaml.NewRNode(yN)
-}
-
-// encodeBase64 encodes s as base64 that is broken up into multiple lines
-// as appropriate for the resulting length.
-func encodeBase64(s string) string {
-	const lineLen = 70
-	encLen := base64.StdEncoding.EncodedLen(len(s))
-	lines := encLen/lineLen + 1
-	buf := make([]byte, encLen*2+lines)
-	in := buf[0:encLen]
-	out := buf[encLen:]
-	base64.StdEncoding.Encode(in, []byte(s))
-	k := 0
-	for i := 0; i < len(in); i += lineLen {
-		j := i + lineLen
-		if j > len(in) {
-			j = len(in)
-		}
-		k += copy(out[k:], in[i:j])
-		if lines > 1 {
-			out[k] = '\n'
-			k++
+	if opts.Immutable {
+		if _, err := rn.Pipe(yaml.SetField("immutable", yaml.NewScalarRNode("true"))); err != nil {
+			return err
 		}
 	}
-	return string(out[:k])
+	return nil
 }

api/internal/k8sdeps/configmapandsecret/configmapfactory.go

@@ -1,68 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-// Package configmapandsecret generates configmaps and secrets per generator rules.
-package configmapandsecret
-
-import (
-	"fmt"
-	"unicode/utf8"
-
-	"github.com/pkg/errors"
-	corev1 "k8s.io/api/core/v1"
-	"sigs.k8s.io/kustomize/api/types"
-)
-
-func makeFreshConfigMap(
-	args *types.ConfigMapArgs) *corev1.ConfigMap {
-	cm := &corev1.ConfigMap{}
-	cm.APIVersion = "v1"
-	cm.Kind = "ConfigMap"
-	cm.Name = args.Name
-	cm.Namespace = args.Namespace
-	cm.Data = map[string]string{}
-	return cm
-}
-
-// MakeConfigMap returns a new ConfigMap, or nil and an error.
-func (f *Factory) MakeConfigMap(args *types.ConfigMapArgs) (*corev1.ConfigMap, error) {
-	all, err := f.kvLdr.Load(args.KvPairSources)
-	if err != nil {
-		return nil, errors.Wrap(err, "loading KV pairs")
-	}
-	cm := makeFreshConfigMap(args)
-	for _, p := range all {
-		err = f.addKvToConfigMap(cm, p)
-		if err != nil {
-			return nil, errors.Wrap(err, "trouble mapping")
-		}
-	}
-	f.copyLabelsAndAnnotations(cm, args.Options)
-	return cm, nil
-}
-
-// addKvToConfigMap adds the given key and data to the given config map.
-// Error if key invalid, or already exists.
-func (f *Factory) addKvToConfigMap(configMap *corev1.ConfigMap, p types.Pair) error {
-	if err := f.kvLdr.Validator().ErrIfInvalidKey(p.Key); err != nil {
-		return err
-	}
-	// If the configmap data contains byte sequences that are all in the UTF-8
-	// range, we will write it to .Data
-	if utf8.Valid([]byte(p.Value)) {
-		if _, entryExists := configMap.Data[p.Key]; entryExists {
-			return fmt.Errorf(keyExistsErrorMsg, p.Key, configMap.Data)
-		}
-		configMap.Data[p.Key] = p.Value
-		return nil
-	}
-	// otherwise, it's BinaryData
-	if configMap.BinaryData == nil {
-		configMap.BinaryData = map[string][]byte{}
-	}
-	if _, entryExists := configMap.BinaryData[p.Key]; entryExists {
-		return fmt.Errorf(keyExistsErrorMsg, p.Key, configMap.BinaryData)
-	}
-	configMap.BinaryData[p.Key] = []byte(p.Value)
-	return nil
-}

api/internal/k8sdeps/configmapandsecret/configmapfactory_test.go

@@ -1,189 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package configmapandsecret
-
-import (
-	"path/filepath"
-	"reflect"
-	"testing"
-
-	corev1 "k8s.io/api/core/v1"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"sigs.k8s.io/kustomize/api/filesys"
-	"sigs.k8s.io/kustomize/api/kv"
-	"sigs.k8s.io/kustomize/api/loader"
-	valtest_test "sigs.k8s.io/kustomize/api/testutils/valtest"
-	"sigs.k8s.io/kustomize/api/types"
-)
-
-func makeEnvConfigMap(name string) *corev1.ConfigMap {
-	return &corev1.ConfigMap{
-		TypeMeta: metav1.TypeMeta{
-			APIVersion: "v1",
-			Kind:       "ConfigMap",
-		},
-		ObjectMeta: metav1.ObjectMeta{
-			Name: name,
-		},
-		Data: map[string]string{
-			"DB_USERNAME": "admin",
-			"DB_PASSWORD": "somepw",
-		},
-	}
-}
-
-func makeFileConfigMap(name string) *corev1.ConfigMap {
-	return &corev1.ConfigMap{
-		TypeMeta: metav1.TypeMeta{
-			APIVersion: "v1",
-			Kind:       "ConfigMap",
-		},
-		ObjectMeta: metav1.ObjectMeta{
-			Name: name,
-		},
-		Data: map[string]string{
-			"app-init.ini": `FOO=bar
-BAR=baz
-`,
-		},
-		BinaryData: map[string][]byte{
-			"app.bin": {0xff, 0xfd},
-		},
-	}
-}
-
-func makeLiteralConfigMap(name string, labels, annotations map[string]string) *corev1.ConfigMap {
-	cm := &corev1.ConfigMap{
-		TypeMeta: metav1.TypeMeta{
-			APIVersion: "v1",
-			Kind:       "ConfigMap",
-		},
-		ObjectMeta: metav1.ObjectMeta{
-			Name: name,
-		},
-		Data: map[string]string{
-			"a": "x",
-			"b": "y",
-			"c": "Hello World",
-			"d": "true",
-		},
-	}
-	if labels != nil {
-		cm.SetLabels(labels)
-	}
-	if annotations != nil {
-		cm.SetAnnotations(annotations)
-	}
-	return cm
-}
-
-func TestConstructConfigMap(t *testing.T) {
-	type testCase struct {
-		description string
-		input       types.ConfigMapArgs
-		expected    *corev1.ConfigMap
-	}
-
-	testCases := []testCase{
-		{
-			description: "construct config map from env",
-			input: types.ConfigMapArgs{
-				GeneratorArgs: types.GeneratorArgs{
-					Name: "envConfigMap",
-					KvPairSources: types.KvPairSources{
-						EnvSources: []string{
-							filepath.Join("configmap", "app.env"),
-						},
-					},
-				},
-			},
-			expected: makeEnvConfigMap("envConfigMap"),
-		},
-		{
-			description: "construct config map from file",
-			input: types.ConfigMapArgs{
-				GeneratorArgs: types.GeneratorArgs{
-					Name: "fileConfigMap",
-					KvPairSources: types.KvPairSources{
-						FileSources: []string{
-							filepath.Join("configmap", "app-init.ini"),
-							filepath.Join("configmap", "app.bin"),
-						},
-					},
-				},
-			},
-			expected: makeFileConfigMap("fileConfigMap"),
-		},
-		{
-			description: "construct config map from literal",
-			input: types.ConfigMapArgs{
-				GeneratorArgs: types.GeneratorArgs{
-					Name: "literalConfigMap",
-					KvPairSources: types.KvPairSources{
-						LiteralSources: []string{"a=x", "b=y", "c=\"Hello World\"", "d='true'"},
-					},
-					Options: &types.GeneratorOptions{
-						Labels: map[string]string{
-							"foo": "bar",
-						},
-					},
-				},
-			},
-			expected: makeLiteralConfigMap("literalConfigMap", map[string]string{
-				"foo": "bar",
-			}, nil),
-		},
-		{
-			description: "construct config map from literal with GeneratorOptions in ConfigMapArgs",
-			input: types.ConfigMapArgs{
-				GeneratorArgs: types.GeneratorArgs{
-					Name: "literalConfigMap",
-					KvPairSources: types.KvPairSources{
-						LiteralSources: []string{"a=x", "b=y", "c=\"Hello World\"", "d='true'"},
-					},
-					Options: &types.GeneratorOptions{
-						Labels: map[string]string{
-							"foo": "changed",
-							"cat": "dog",
-						},
-						Annotations: map[string]string{
-							"foo": "changed",
-							"cat": "dog",
-						},
-					},
-				},
-			},
-			expected: makeLiteralConfigMap("literalConfigMap", map[string]string{
-				"foo": "changed",
-				"cat": "dog",
-			}, map[string]string{
-				"foo": "changed",
-				"cat": "dog",
-			}),
-		},
-	}
-
-	fSys := filesys.MakeFsInMemory()
-	fSys.WriteFile(
-		filesys.RootedPath("configmap", "app.env"),
-		[]byte("DB_USERNAME=admin\nDB_PASSWORD=somepw\n"))
-	fSys.WriteFile(
-		filesys.RootedPath("configmap", "app-init.ini"),
-		[]byte("FOO=bar\nBAR=baz\n"))
-	fSys.WriteFile(
-		filesys.RootedPath("configmap", "app.bin"),
-		[]byte{0xff, 0xfd})
-	kvLdr := kv.NewLoader(
-		loader.NewFileLoaderAtRoot(fSys),
-		valtest_test.MakeFakeValidator())
-	for _, tc := range testCases {
-		cm, err := NewFactory(kvLdr).MakeConfigMap(&tc.input)
-		if err != nil {
-			t.Fatalf("unexpected error: %v", err)
-		}
-		if !reflect.DeepEqual(*cm, *tc.expected) {
-			t.Fatalf("in testcase: %q updated:\n%#v\ndoesn't match expected:\n%#v\n", tc.description, *cm, tc.expected)
-		}
-	}
-}

api/internal/k8sdeps/configmapandsecret/factory.go

@@ -1,37 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package configmapandsecret
-
-import (
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"sigs.k8s.io/kustomize/api/ifc"
-	"sigs.k8s.io/kustomize/api/types"
-)
-
-// Factory makes ConfigMaps and Secrets.
-type Factory struct {
-	kvLdr ifc.KvLoader
-}
-
-// NewFactory returns a new factory that makes ConfigMaps and Secrets.
-func NewFactory(kvLdr ifc.KvLoader) *Factory {
-	return &Factory{kvLdr: kvLdr}
-}
-
-// copyLabelsAndAnnotations copies labels and annotations from
-// GeneratorOptions into the given object.
-func (f *Factory) copyLabelsAndAnnotations(
-	obj metav1.Object, opts *types.GeneratorOptions) {
-	if opts == nil {
-		return
-	}
-	if opts.Labels != nil {
-		obj.SetLabels(types.CopyMap(opts.Labels))
-	}
-	if opts.Annotations != nil {
-		obj.SetAnnotations(types.CopyMap(opts.Annotations))
-	}
-}
-
-const keyExistsErrorMsg = "cannot add key %s, another key by that name already exists: %v"

api/internal/k8sdeps/configmapandsecret/secretfactory.go

@@ -1,54 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package configmapandsecret
-
-import (
-	"fmt"
-
-	corev1 "k8s.io/api/core/v1"
-	"sigs.k8s.io/kustomize/api/types"
-)
-
-func makeFreshSecret(
-	args *types.SecretArgs) *corev1.Secret {
-	s := &corev1.Secret{}
-	s.APIVersion = "v1"
-	s.Kind = "Secret"
-	s.Name = args.Name
-	s.Namespace = args.Namespace
-	s.Type = corev1.SecretType(args.Type)
-	if s.Type == "" {
-		s.Type = corev1.SecretTypeOpaque
-	}
-	s.Data = map[string][]byte{}
-	return s
-}
-
-// MakeSecret returns a new secret.
-func (f *Factory) MakeSecret(args *types.SecretArgs) (*corev1.Secret, error) {
-	all, err := f.kvLdr.Load(args.KvPairSources)
-	if err != nil {
-		return nil, err
-	}
-	s := makeFreshSecret(args)
-	for _, p := range all {
-		err = f.addKvToSecret(s, p.Key, p.Value)
-		if err != nil {
-			return nil, err
-		}
-	}
-	f.copyLabelsAndAnnotations(s, args.Options)
-	return s, nil
-}
-
-func (f *Factory) addKvToSecret(secret *corev1.Secret, keyName, data string) error {
-	if err := f.kvLdr.Validator().ErrIfInvalidKey(keyName); err != nil {
-		return err
-	}
-	if _, entryExists := secret.Data[keyName]; entryExists {
-		return fmt.Errorf(keyExistsErrorMsg, keyName, secret.Data)
-	}
-	secret.Data[keyName] = []byte(data)
-	return nil
-}

api/internal/k8sdeps/configmapandsecret/secretfactory_test.go

@@ -1,154 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package configmapandsecret
-
-import (
-	"reflect"
-	"testing"
-
-	corev1 "k8s.io/api/core/v1"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"sigs.k8s.io/kustomize/api/filesys"
-	"sigs.k8s.io/kustomize/api/kv"
-	"sigs.k8s.io/kustomize/api/loader"
-	valtest_test "sigs.k8s.io/kustomize/api/testutils/valtest"
-	"sigs.k8s.io/kustomize/api/types"
-)
-
-func makeEnvSecret(name string) *corev1.Secret {
-	return &corev1.Secret{
-		TypeMeta: metav1.TypeMeta{
-			APIVersion: "v1",
-			Kind:       "Secret",
-		},
-		ObjectMeta: metav1.ObjectMeta{
-			Name: name,
-		},
-		Data: map[string][]byte{
-			"DB_PASSWORD": []byte("somepw"),
-			"DB_USERNAME": []byte("admin"),
-		},
-		Type: "Opaque",
-	}
-}
-
-func makeFileSecret(name string) *corev1.Secret {
-	return &corev1.Secret{
-		TypeMeta: metav1.TypeMeta{
-			APIVersion: "v1",
-			Kind:       "Secret",
-		},
-		ObjectMeta: metav1.ObjectMeta{
-			Name: name,
-		},
-		Data: map[string][]byte{
-			"app-init.ini": []byte(`FOO=bar
-BAR=baz
-`),
-		},
-		Type: "Opaque",
-	}
-}
-
-func makeLiteralSecret(name string, labels, annotations map[string]string) *corev1.Secret {
-	s := &corev1.Secret{
-		TypeMeta: metav1.TypeMeta{
-			APIVersion: "v1",
-			Kind:       "Secret",
-		},
-		ObjectMeta: metav1.ObjectMeta{
-			Name: name,
-		},
-		Data: map[string][]byte{
-			"a": []byte("x"),
-			"b": []byte("y"),
-		},
-		Type: "Opaque",
-	}
-	if labels != nil {
-		s.SetLabels(labels)
-	}
-	if annotations != nil {
-		s.SetAnnotations(annotations)
-	}
-	return s
-}
-
-func TestConstructSecret(t *testing.T) {
-	type testCase struct {
-		description string
-		input       types.SecretArgs
-		expected    *corev1.Secret
-	}
-
-	testCases := []testCase{
-		{
-			description: "construct secret from env",
-			input: types.SecretArgs{
-				GeneratorArgs: types.GeneratorArgs{
-					Name: "envSecret",
-					KvPairSources: types.KvPairSources{
-						EnvSources: []string{"secret/app.env"},
-					},
-				},
-			},
-			expected: makeEnvSecret("envSecret"),
-		},
-		{
-			description: "construct secret from file",
-			input: types.SecretArgs{
-				GeneratorArgs: types.GeneratorArgs{
-					Name: "fileSecret",
-					KvPairSources: types.KvPairSources{
-						FileSources: []string{"secret/app-init.ini"},
-					},
-				},
-			},
-			expected: makeFileSecret("fileSecret"),
-		},
-		{
-			description: "construct secret from literal",
-			input: types.SecretArgs{
-				GeneratorArgs: types.GeneratorArgs{
-					Name: "literalSecret",
-					KvPairSources: types.KvPairSources{
-						LiteralSources: []string{"a=x", "b=y"},
-					},
-					Options: &types.GeneratorOptions{
-						Labels: map[string]string{
-							"foo": "bar",
-						},
-						Annotations: map[string]string{
-							"fruit": "banana",
-							"pet":   "dog",
-						},
-					},
-				},
-			},
-			expected: makeLiteralSecret("literalSecret", map[string]string{
-				"foo": "bar",
-			}, map[string]string{
-				"fruit": "banana",
-				"pet":   "dog",
-			}),
-		},
-	}
-
-	fSys := filesys.MakeFsInMemory()
-	fSys.WriteFile("/secret/app.env", []byte("DB_USERNAME=admin\nDB_PASSWORD=somepw\n"))
-	fSys.WriteFile("/secret/app-init.ini", []byte("FOO=bar\nBAR=baz\n"))
-	kvLdr := kv.NewLoader(
-		loader.NewFileLoaderAtRoot(fSys),
-		valtest_test.MakeFakeValidator())
-	for _, tc := range testCases {
-		f := NewFactory(kvLdr)
-		cm, err := f.MakeSecret(&tc.input)
-		if err != nil {
-			t.Fatalf("unexpected error: %v", err)
-		}
-		if !reflect.DeepEqual(*cm, *tc.expected) {
-			t.Fatalf("in testcase: %q updated:\n%#v\ndoesn't match expected:\n%#v\n", tc.description, *cm, tc.expected)
-		}
-	}
-}

api/internal/k8sdeps/conflict/conflictdetectorjson.go

@@ -1,43 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package conflict
-
-import (
-	"encoding/json"
-
-	jsonpatch "github.com/evanphx/json-patch"
-	"k8s.io/apimachinery/pkg/util/mergepatch"
-	"sigs.k8s.io/kustomize/api/resource"
-)
-
-// conflictDetectorJson detects conflicts in a list of JSON patches.
-type conflictDetectorJson struct {
-	resourceFactory *resource.Factory
-}
-
-var _ resource.ConflictDetector = &conflictDetectorJson{}
-
-func (cd *conflictDetectorJson) HasConflict(
-	p1, p2 *resource.Resource) (bool, error) {
-	return mergepatch.HasConflicts(p1.Map(), p2.Map())
-}
-
-func (cd *conflictDetectorJson) MergePatches(
-	patch1, patch2 *resource.Resource) (*resource.Resource, error) {
-	baseBytes, err := json.Marshal(patch1.Map())
-	if err != nil {
-		return nil, err
-	}
-	patchBytes, err := json.Marshal(patch2.Map())
-	if err != nil {
-		return nil, err
-	}
-	mergedBytes, err := jsonpatch.MergeMergePatches(baseBytes, patchBytes)
-	if err != nil {
-		return nil, err
-	}
-	mergedMap := make(map[string]interface{})
-	err = json.Unmarshal(mergedBytes, &mergedMap)
-	return cd.resourceFactory.FromMap(mergedMap), err
-}

api/internal/k8sdeps/conflict/conflictdetectorsm.go

@@ -1,65 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package conflict
-
-import (
-	"fmt"
-
-	"k8s.io/apimachinery/pkg/util/strategicpatch"
-	"sigs.k8s.io/kustomize/api/resource"
-)
-
-// conflictDetectorSm detects conflicts in a list of strategic merge patches.
-type conflictDetectorSm struct {
-	lookupPatchMeta strategicpatch.LookupPatchMeta
-	resourceFactory *resource.Factory
-}
-
-var _ resource.ConflictDetector = &conflictDetectorSm{}
-
-func (cd *conflictDetectorSm) HasConflict(
-	p1, p2 *resource.Resource) (bool, error) {
-	return strategicpatch.MergingMapsHaveConflicts(
-		p1.Map(), p2.Map(), cd.lookupPatchMeta)
-}
-
-func (cd *conflictDetectorSm) MergePatches(
-	patch1, patch2 *resource.Resource) (*resource.Resource, error) {
-	if cd.hasDeleteDirectiveMarker(patch2.Map()) {
-		if cd.hasDeleteDirectiveMarker(patch1.Map()) {
-			return nil, fmt.Errorf(
-				"cannot merge patches both containing '$patch: delete' directives")
-		}
-		patch1, patch2 = patch2, patch1
-	}
-	mergedMap, err := strategicpatch.MergeStrategicMergeMapPatchUsingLookupPatchMeta(
-		cd.lookupPatchMeta, patch1.Map(), patch2.Map())
-	return cd.resourceFactory.FromMap(mergedMap), err
-}
-
-func (cd *conflictDetectorSm) hasDeleteDirectiveMarker(
-	patch map[string]interface{}) bool {
-	if v, ok := patch["$patch"]; ok && v == "delete" {
-		return true
-	}
-	for _, v := range patch {
-		switch typedV := v.(type) {
-		case map[string]interface{}:
-			if cd.hasDeleteDirectiveMarker(typedV) {
-				return true
-			}
-		case []interface{}:
-			for _, sv := range typedV {
-				typedE, ok := sv.(map[string]interface{})
-				if !ok {
-					break
-				}
-				if cd.hasDeleteDirectiveMarker(typedE) {
-					return true
-				}
-			}
-		}
-	}
-	return false
-}

api/internal/k8sdeps/conflict/factory.go

@@ -1,45 +0,0 @@
-// Copyright 2020 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package conflict
-
-import (
-	"k8s.io/apimachinery/pkg/runtime"
-	"k8s.io/apimachinery/pkg/runtime/schema"
-	sp "k8s.io/apimachinery/pkg/util/strategicpatch"
-	"k8s.io/client-go/kubernetes/scheme"
-	"sigs.k8s.io/kustomize/api/resid"
-	"sigs.k8s.io/kustomize/api/resource"
-)
-
-type cdFactory struct {
-	rf *resource.Factory
-}
-
-var _ resource.ConflictDetectorFactory = &cdFactory{}
-
-// NewFactory returns a conflict detector factory.
-// The detector uses a resource factory to convert resources to/from
-// json/yaml/maps representations.
-func NewFactory(rf *resource.Factory) resource.ConflictDetectorFactory {
-	return &cdFactory{rf: rf}
-}
-
-// New returns a conflict detector that's aware of the GVK type.
-func (f *cdFactory) New(gvk resid.Gvk) (resource.ConflictDetector, error) {
-	// Convert to apimachinery representation of object
-	obj, err := scheme.Scheme.New(schema.GroupVersionKind{
-		Group:   gvk.Group,
-		Version: gvk.Version,
-		Kind:    gvk.Kind,
-	})
-	if err == nil {
-		meta, err := sp.NewPatchMetaFromStruct(obj)
-		return &conflictDetectorSm{
-			lookupPatchMeta: meta, resourceFactory: f.rf}, err
-	}
-	if runtime.IsNotRegisteredError(err) {
-		return &conflictDetectorJson{resourceFactory: f.rf}, nil
-	}
-	return nil, err
-}

api/internal/plugins/builtinconfig/namebackreferences.go

@@ -10,8 +10,8 @@ import (
 	"sigs.k8s.io/kustomize/api/types"
 )
 
-// NameBackReferences is an association between a gvk.GVK and a list
-// of FieldSpec instances that could refer to it.
+// NameBackReferences is an association between a gvk.GVK (a ReferralTarget)
+// and a list of Referrers that could refer to it.
 //
 // It is used to handle name changes, and can be thought of as a
 // a contact list.  If you change your own contact info (name,
@@ -19,16 +19,20 @@ import (
 // know about the change.
 //
 // For example, ConfigMaps can be used by Pods and everything that
-// contains a Pod; Deployment, Job, StatefulSet, etc.  To change
-// the name of a ConfigMap instance from 'alice' to 'bob', one
-// must visit all objects that could refer to the ConfigMap, see if
-// they mention 'alice', and if so, change the reference to 'bob'.
+// contains a Pod; Deployment, Job, StatefulSet, etc.
+// The ConfigMap is the ReferralTarget, the others are Referrers.
+//
+// If the the name of a ConfigMap instance changed from 'alice' to 'bob',
+// one must
+//  - visit all objects that could refer to the ConfigMap (the Referrers)
+//  - see if they mention 'alice',
+//  - if so, change the Referrer's name reference to 'bob'.
 //
 // The NameBackReferences instance to aid in this could look like
 //   {
 //     kind: ConfigMap
 //     version: v1
-//     FieldSpecs:
+//     fieldSpecs:
 //     - kind: Pod
 //       version: v1
 //       path: spec/volumes/configMap/name
@@ -39,13 +43,15 @@ import (
 //       (etc.)
 //   }
 type NameBackReferences struct {
-	resid.Gvk  `json:",inline,omitempty" yaml:",inline,omitempty"`
-	FieldSpecs types.FsSlice `json:"FieldSpecs,omitempty" yaml:"FieldSpecs,omitempty"`
+	resid.Gvk `json:",inline,omitempty" yaml:",inline,omitempty"`
+	// TODO: rename json 'fieldSpecs' to 'referrers' for clarity.
+	// This will, however, break anyone using a custom config.
+	Referrers types.FsSlice `json:"fieldSpecs,omitempty" yaml:"fieldSpecs,omitempty"`
 }
 
 func (n NameBackReferences) String() string {
 	var r []string
-	for _, f := range n.FieldSpecs {
+	for _, f := range n.Referrers {
 		r = append(r, f.String())
 	}
 	return n.Gvk.String() + ":  (\n" +
@@ -77,7 +83,7 @@ func (s nbrSlice) mergeOne(other NameBackReferences) (nbrSlice, error) {
 	found := false
 	for _, c := range s {
 		if c.Gvk.Equals(other.Gvk) {
-			c.FieldSpecs, err = c.FieldSpecs.MergeAll(other.FieldSpecs)
+			c.Referrers, err = c.Referrers.MergeAll(other.Referrers)
 			if err != nil {
 				return nil, err
 			}

api/internal/plugins/builtinconfig/namebackreferences_test.go

@@ -50,13 +50,13 @@ func TestMergeAll(t *testing.T) {
 			Gvk: resid.Gvk{
 				Kind: "ConfigMap",
 			},
-			FieldSpecs: fsSlice1,
+			Referrers: fsSlice1,
 		},
 		{
 			Gvk: resid.Gvk{
 				Kind: "Secret",
 			},
-			FieldSpecs: fsSlice2,
+			Referrers: fsSlice2,
 		},
 	}
 	nbrsSlice2 := nbrSlice{
@@ -64,13 +64,13 @@ func TestMergeAll(t *testing.T) {
 			Gvk: resid.Gvk{
 				Kind: "ConfigMap",
 			},
-			FieldSpecs: fsSlice1,
+			Referrers: fsSlice1,
 		},
 		{
 			Gvk: resid.Gvk{
 				Kind: "Secret",
 			},
-			FieldSpecs: fsSlice2,
+			Referrers: fsSlice2,
 		},
 	}
 	expected := nbrSlice{
@@ -78,13 +78,13 @@ func TestMergeAll(t *testing.T) {
 			Gvk: resid.Gvk{
 				Kind: "ConfigMap",
 			},
-			FieldSpecs: fsSlice1,
+			Referrers: fsSlice1,
 		},
 		{
 			Gvk: resid.Gvk{
 				Kind: "Secret",
 			},
-			FieldSpecs: fsSlice2,
+			Referrers: fsSlice2,
 		},
 	}
 	actual, err := nbrsSlice1.mergeAll(nbrsSlice2)

api/internal/plugins/builtinconfig/transformerconfig_test.go

@@ -24,7 +24,7 @@ func TestAddNamereferenceFieldSpec(t *testing.T) {
 		Gvk: resid.Gvk{
 			Kind: "KindA",
 		},
-		FieldSpecs: []types.FieldSpec{
+		Referrers: []types.FieldSpec{
 			{
 				Gvk: resid.Gvk{
 					Kind: "KindB",
@@ -89,7 +89,7 @@ func TestMerge(t *testing.T) {
 			Gvk: resid.Gvk{
 				Kind: "KindA",
 			},
-			FieldSpecs: []types.FieldSpec{
+			Referrers: []types.FieldSpec{
 				{
 					Gvk: resid.Gvk{
 						Kind: "KindB",
@@ -103,7 +103,7 @@ func TestMerge(t *testing.T) {
 			Gvk: resid.Gvk{
 				Kind: "KindA",
 			},
-			FieldSpecs: []types.FieldSpec{
+			Referrers: []types.FieldSpec{
 				{
 					Gvk: resid.Gvk{
 						Kind: "KindC",

api/internal/plugins/builtinhelpers/builtinplugintype_string.go

@@ -24,11 +24,12 @@ func _() {
 	_ = x[SecretGenerator-13]
 	_ = x[ValueAddTransformer-14]
 	_ = x[HelmChartInflationGenerator-15]
+	_ = x[ReplacementTransformer-16]
 }
 
-const _BuiltinPluginType_name = "UnknownAnnotationsTransformerConfigMapGeneratorHashTransformerImageTagTransformerLabelTransformerLegacyOrderTransformerNamespaceTransformerPatchJson6902TransformerPatchStrategicMergeTransformerPatchTransformerPrefixSuffixTransformerReplicaCountTransformerSecretGeneratorValueAddTransformerHelmChartInflationGenerator"
+const _BuiltinPluginType_name = "UnknownAnnotationsTransformerConfigMapGeneratorHashTransformerImageTagTransformerLabelTransformerLegacyOrderTransformerNamespaceTransformerPatchJson6902TransformerPatchStrategicMergeTransformerPatchTransformerPrefixSuffixTransformerReplicaCountTransformerSecretGeneratorValueAddTransformerHelmChartInflationGeneratorReplacementTransformer"
 
-var _BuiltinPluginType_index = [...]uint16{0, 7, 29, 47, 62, 81, 97, 119, 139, 163, 193, 209, 232, 255, 270, 289, 316}
+var _BuiltinPluginType_index = [...]uint16{0, 7, 29, 47, 62, 81, 97, 119, 139, 163, 193, 209, 232, 255, 270, 289, 316, 338}
 
 func (i BuiltinPluginType) String() string {
 	if i < 0 || i >= BuiltinPluginType(len(_BuiltinPluginType_index)-1) {

api/internal/plugins/builtinhelpers/builtins.go

@@ -28,6 +28,7 @@ const (
 	SecretGenerator
 	ValueAddTransformer
 	HelmChartInflationGenerator
+	ReplacementTransformer
 )
 
 var stringToBuiltinPluginTypeMap map[string]BuiltinPluginType
@@ -72,6 +73,7 @@ var TransformerFactories = map[BuiltinPluginType]func() resmap.TransformerPlugin
 	PatchStrategicMergeTransformer: builtins.NewPatchStrategicMergeTransformerPlugin,
 	PatchTransformer:               builtins.NewPatchTransformerPlugin,
 	PrefixSuffixTransformer:        builtins.NewPrefixSuffixTransformerPlugin,
+	ReplacementTransformer:         builtins.NewReplacementTransformerPlugin,
 	ReplicaCountTransformer:        builtins.NewReplicaCountTransformerPlugin,
 	ValueAddTransformer:            builtins.NewValueAddTransformerPlugin,
 }

api/internal/plugins/execplugin/execplugin_test.go

@@ -13,10 +13,10 @@ import (
 	. "sigs.k8s.io/kustomize/api/internal/plugins/execplugin"
 	pLdr "sigs.k8s.io/kustomize/api/internal/plugins/loader"
 	"sigs.k8s.io/kustomize/api/internal/plugins/utils"
-	"sigs.k8s.io/kustomize/api/konfig"
 	fLdr "sigs.k8s.io/kustomize/api/loader"
 	"sigs.k8s.io/kustomize/api/provider"
 	"sigs.k8s.io/kustomize/api/resmap"
+	"sigs.k8s.io/kustomize/api/types"
 )
 
 func TestExecPluginConfig(t *testing.T) {
@@ -32,8 +32,7 @@ s/$BAR/bar baz/g
 		t.Fatal(err)
 	}
 	pvd := provider.NewDefaultDepProvider()
-	rf := resmap.NewFactory(
-		pvd.GetResourceFactory(), pvd.GetConflictDetectorFactory())
+	rf := resmap.NewFactory(pvd.GetResourceFactory())
 	pluginConfig := rf.RF().FromMap(
 		map[string]interface{}{
 			"apiVersion": "someteam.example.com/v1",
@@ -45,10 +44,14 @@ s/$BAR/bar baz/g
 			"argsFromFile": "sed-input.txt",
 		})
 
-	p := NewExecPlugin(
-		pLdr.AbsolutePluginPath(
-			konfig.DisabledPluginConfig(),
-			pluginConfig.OrgId()))
+	pluginConfig.RemoveBuildAnnotations()
+	pc := types.DisabledPluginConfig()
+	loader := pLdr.NewLoader(pc, rf, fSys)
+	pluginPath, err := loader.AbsolutePluginPath(pluginConfig.OrgId())
+	if err != nil {
+		t.Fatalf("unexpected err: %v", err)
+	}
+	p := NewExecPlugin(pluginPath)
 	// Not checking to see if the plugin is executable,
 	// because this test does not run it.
 	// This tests only covers sending configuration
@@ -59,7 +62,9 @@ s/$BAR/bar baz/g
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
-	p.Config(resmap.NewPluginHelpers(ldr, pvd.GetFieldValidator(), rf), yaml)
+	p.Config(
+		resmap.NewPluginHelpers(ldr, pvd.GetFieldValidator(), rf, pc),
+		yaml)
 
 	expected := "someteam.example.com/v1/sedtransformer/SedTransformer"
 	if !strings.HasSuffix(p.Path(), expected) {

api/internal/plugins/loader/loader.go

@@ -13,6 +13,7 @@ import (
 	"strings"
 
 	"github.com/pkg/errors"
+	"sigs.k8s.io/kustomize/api/filesys"
 	"sigs.k8s.io/kustomize/api/ifc"
 	"sigs.k8s.io/kustomize/api/internal/plugins/builtinhelpers"
 	"sigs.k8s.io/kustomize/api/internal/plugins/execplugin"
@@ -29,11 +30,21 @@ import (
 type Loader struct {
 	pc *types.PluginConfig
 	rf *resmap.Factory
+	fs filesys.FileSystem
+
+	// absolutePluginHome caches the location of a valid plugin root directory.
+	// It should only be set once the directory's existence has been confirmed.
+	absolutePluginHome string
 }
 
 func NewLoader(
-	pc *types.PluginConfig, rf *resmap.Factory) *Loader {
-	return &Loader{pc: pc, rf: rf}
+	pc *types.PluginConfig, rf *resmap.Factory, fs filesys.FileSystem) *Loader {
+	return &Loader{pc: pc, rf: rf, fs: fs}
+}
+
+// Config provides the global (not plugin specific) PluginConfig data.
+func (l *Loader) Config() *types.PluginConfig {
+	return l.pc
 }
 
 func (l *Loader) LoadGenerators(
@@ -95,13 +106,47 @@ func relativePluginPath(id resid.ResId) string {
 		strings.ToLower(id.Kind))
 }
 
-func AbsolutePluginPath(pc *types.PluginConfig, id resid.ResId) string {
-	return filepath.Join(
-		pc.AbsPluginHome, relativePluginPath(id), id.Kind)
+func (l *Loader) AbsolutePluginPath(id resid.ResId) (string, error) {
+	pluginHome, err := l.absPluginHome()
+	if err != nil {
+		return "", err
+	}
+	return filepath.Join(pluginHome, relativePluginPath(id), id.Kind), nil
 }
 
-func (l *Loader) absolutePluginPath(id resid.ResId) string {
-	return AbsolutePluginPath(l.pc, id)
+// absPluginHome is the home of kustomize Exec and Go plugins.
+// Kustomize plugin configuration files are k8s-style objects
+// containing the fields 'apiVersion' and 'kind', e.g.
+//   apiVersion: apps/v1
+//   kind: Deployment
+// kustomize reads plugin configuration data from a file path
+// specified in the 'generators:' or 'transformers:' field of a
+// kustomization file.  For Exec and Go plugins, kustomize
+// uses this data to both locate the plugin and configure it.
+// Each Exec or Go plugin (its code, its tests, its supporting data
+// files, etc.) must be housed in its own directory at
+//   ${absPluginHome}/${pluginApiVersion}/LOWERCASE(${pluginKind})
+// where
+//   - ${absPluginHome} is an absolute path, defined below.
+//   - ${pluginApiVersion} is taken from the plugin config file.
+//   - ${pluginKind} is taken from the plugin config file.
+func (l *Loader) absPluginHome() (string, error) {
+	// External plugins are disabled--return the dummy plugin root.
+	if l.pc.PluginRestrictions != types.PluginRestrictionsNone {
+		return konfig.NoPluginHomeSentinal, nil
+	}
+	// We've already determined plugin home--use the cached value.
+	if l.absolutePluginHome != "" {
+		return l.absolutePluginHome, nil
+	}
+
+	// Check default locations for a valid plugin root, and cache it if found.
+	dir, err := konfig.DefaultAbsPluginHome(l.fs)
+	if err != nil {
+		return "", err
+	}
+	l.absolutePluginHome = dir
+	return l.absolutePluginHome, nil
 }
 
 func isBuiltinPlugin(res *resource.Resource) bool {
@@ -148,7 +193,7 @@ func (l *Loader) loadAndConfigurePlugin(
 	if err != nil {
 		return nil, errors.Wrapf(err, "marshalling yaml from res %s", res.OrgId())
 	}
-	err = c.Config(resmap.NewPluginHelpers(ldr, v, l.rf), yaml)
+	err = c.Config(resmap.NewPluginHelpers(ldr, v, l.rf, l.pc), yaml)
 	if err != nil {
 		return nil, errors.Wrapf(
 			err, "plugin %s fails configuration", res.OrgId())
@@ -176,10 +221,13 @@ func (l *Loader) loadPlugin(res *resource.Resource) (resmap.Configurable, error)
 }
 
 func (l *Loader) loadExecOrGoPlugin(resId resid.ResId) (resmap.Configurable, error) {
+	absPluginPath, err := l.AbsolutePluginPath(resId)
+	if err != nil {
+		return nil, err
+	}
 	// First try to load the plugin as an executable.
-	p := execplugin.NewExecPlugin(l.absolutePluginPath(resId))
-	err := p.ErrIfNotExecutable()
-	if err == nil {
+	p := execplugin.NewExecPlugin(absPluginPath)
+	if err = p.ErrIfNotExecutable(); err == nil {
 		return p, nil
 	}
 	if !os.IsNotExist(err) {
@@ -193,7 +241,7 @@ func (l *Loader) loadExecOrGoPlugin(resId resid.ResId) (resmap.Configurable, err
 		return nil, err
 	}
 	// Failing the above, try loading it as a Go plugin.
-	c, err := l.loadGoPlugin(resId)
+	c, err := l.loadGoPlugin(resId, absPluginPath+".so")
 	if err != nil {
 		return nil, err
 	}
@@ -208,12 +256,11 @@ func (l *Loader) loadExecOrGoPlugin(resId resid.ResId) (resmap.Configurable, err
 // as a Loader instance variable.  So make it a package variable.
 var registry = make(map[string]resmap.Configurable)
 
-func (l *Loader) loadGoPlugin(id resid.ResId) (resmap.Configurable, error) {
+func (l *Loader) loadGoPlugin(id resid.ResId, absPath string) (resmap.Configurable, error) {
 	regId := relativePluginPath(id)
 	if c, ok := registry[regId]; ok {
 		return copyPlugin(c), nil
 	}
-	absPath := l.absolutePluginPath(id) + ".so"
 	if !utils.FileExists(absPath) {
 		return nil, fmt.Errorf(
 			"expected file with Go object code at: %s", absPath)

api/internal/plugins/loader/loader_test.go

@@ -8,7 +8,6 @@ import (
 
 	"sigs.k8s.io/kustomize/api/filesys"
 	. "sigs.k8s.io/kustomize/api/internal/plugins/loader"
-	"sigs.k8s.io/kustomize/api/konfig"
 	"sigs.k8s.io/kustomize/api/loader"
 	"sigs.k8s.io/kustomize/api/provider"
 	"sigs.k8s.io/kustomize/api/resmap"
@@ -51,11 +50,11 @@ func TestLoader(t *testing.T) {
 		BuildGoPlugin("someteam.example.com", "v1", "SomeServiceGenerator")
 	defer th.Reset()
 	p := provider.NewDefaultDepProvider()
-	rmF := resmap.NewFactory(
-		p.GetResourceFactory(), p.GetConflictDetectorFactory())
+	rmF := resmap.NewFactory(p.GetResourceFactory())
+	fsys := filesys.MakeFsInMemory()
 	fLdr, err := loader.NewLoader(
 		loader.RestrictionRootOnly,
-		filesys.Separator, filesys.MakeFsInMemory())
+		filesys.Separator, fsys)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -67,11 +66,8 @@ func TestLoader(t *testing.T) {
 	for _, behavior := range []types.BuiltinPluginLoadingOptions{
 		/* types.BploUseStaticallyLinked,
 		types.BploLoadFromFileSys */} {
-		c, err := konfig.EnabledPluginConfig(behavior)
-		if err != nil {
-			t.Fatal(err)
-		}
-		pLdr := NewLoader(c, rmF)
+		c := types.EnabledPluginConfig(behavior)
+		pLdr := NewLoader(c, rmF, fsys)
 		if pLdr == nil {
 			t.Fatal("expect non-nil loader")
 		}

api/internal/plugins/utils/utils.go

@@ -4,6 +4,7 @@
 package utils
 
 import (
+	"encoding/json"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -13,8 +14,8 @@ import (
 
 	"sigs.k8s.io/kustomize/api/filesys"
 	"sigs.k8s.io/kustomize/api/konfig"
-	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/resmap"
+	"sigs.k8s.io/kustomize/api/resource"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/yaml"
 )
@@ -33,7 +34,7 @@ func GoBin() string {
 // has her ${g}/${v}/$lower(${k})/${k}.go files.
 func DeterminePluginSrcRoot(fSys filesys.FileSystem) (string, error) {
 	return konfig.FirstDirThatExistsElseError(
-		"source directory", fSys, []konfig.NotedFunc{
+		"plugin src root", fSys, []konfig.NotedFunc{
 			{
 				Note: "relative to unit test",
 				F: func() string {
@@ -135,9 +136,6 @@ func GetResMapWithIDAnnotation(rm resmap.ResMap) (resmap.ResMap, error) {
 			return nil, err
 		}
 		annotations := r.GetAnnotations()
-		if annotations == nil {
-			annotations = make(map[string]string)
-		}
 		annotations[idAnnotation] = string(idString)
 		r.SetAnnotations(annotations)
 	}
@@ -147,41 +145,65 @@ func GetResMapWithIDAnnotation(rm resmap.ResMap) (resmap.ResMap, error) {
 // UpdateResMapValues updates the Resource value in the given ResMap
 // with the emitted Resource values in output.
 func UpdateResMapValues(pluginName string, h *resmap.PluginHelpers, output []byte, rm resmap.ResMap) error {
-	outputRM, err := h.ResmapFactory().NewResMapFromBytes(output)
+	mapFactory := h.ResmapFactory()
+	resFactory := mapFactory.RF()
+	resources, err := resFactory.SliceFromBytes(output)
 	if err != nil {
 		return err
 	}
-	for _, r := range outputRM.Resources() {
-		// for each emitted Resource, find the matching Resource in the original ResMap
-		// using its id
-		annotations := r.GetAnnotations()
-		idString, ok := annotations[idAnnotation]
-		if !ok {
-			return fmt.Errorf("the transformer %s should not remove annotation %s",
-				pluginName, idAnnotation)
+	// Don't use resources here, or error message will be unfriendly to plugin builders
+	newMap, err := mapFactory.NewResMapFromBytes([]byte{})
+	if err != nil {
+		return err
+	}
+
+	for _, r := range resources {
+		removeIDAnnotation(r) // stale--not manipulated by plugin transformers
+
+		// Add to the new map, checking for duplicates
+		if err := newMap.Append(r); err != nil {
+			prettyID, err := json.Marshal(r.CurId())
+			if err != nil {
+				prettyID = []byte(r.CurId().String())
+			}
+			return fmt.Errorf("plugin %s generated duplicate resource: %s", pluginName, prettyID)
 		}
-		id := resid.ResId{}
-		err := yaml.Unmarshal([]byte(idString), &id)
+
+		// Add to or update the old map
+		oldIdx, err := rm.GetIndexOfCurrentId(r.CurId())
 		if err != nil {
 			return err
 		}
-		res, err := rm.GetByCurrentId(id)
-		if err != nil {
-			return fmt.Errorf("unable to find unique match to %s", id.String())
+		if oldIdx != -1 {
+			rm.GetByIndex(oldIdx).ResetPrimaryData(r)
+		} else {
+			if err := rm.Append(r); err != nil {
+				return err
+			}
 		}
-		// remove the annotation set by Kustomize to track the resource
-		delete(annotations, idAnnotation)
-		if len(annotations) == 0 {
-			annotations = nil
-		}
-		r.SetAnnotations(annotations)
-
-		// update the resource value with the transformed object
-		res.ResetPrimaryData(r)
 	}
+
+	// Remove items the transformer deleted from the old map
+	for _, id := range rm.AllIds() {
+		newIdx, _ := newMap.GetIndexOfCurrentId(id)
+		if newIdx == -1 {
+			rm.Remove(id)
+		}
+	}
+
 	return nil
 }
 
+func removeIDAnnotation(r *resource.Resource) {
+	// remove the annotation set by Kustomize to track the resource
+	annotations := r.GetAnnotations()
+	delete(annotations, idAnnotation)
+	if len(annotations) == 0 {
+		annotations = nil
+	}
+	r.SetAnnotations(annotations)
+}
+
 // UpdateResourceOptions updates the generator options for each resource in the
 // given ResMap based on plugin provided annotations.
 func UpdateResourceOptions(rm resmap.ResMap) (resmap.ResMap, error) {

api/internal/target/kusttarget.go

@@ -6,9 +6,9 @@ package target
 import (
 	"encoding/json"
 	"fmt"
+	"path/filepath"
 	"strings"
 
-	"github.com/hashicorp/go-multierror"
 	"github.com/pkg/errors"
 	"sigs.k8s.io/kustomize/api/builtins"
 	"sigs.k8s.io/kustomize/api/ifc"
@@ -19,6 +19,7 @@ import (
 	"sigs.k8s.io/kustomize/api/konfig"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/types"
+	"sigs.k8s.io/kustomize/kyaml/openapi"
 	"sigs.k8s.io/yaml"
 )
 
@@ -334,20 +335,15 @@ func (kt *KustTarget) accumulateResources(
 	for _, path := range paths {
 		// try loading resource as file then as base (directory or git repository)
 		if errF := kt.accumulateFile(ra, path); errF != nil {
-			ldr, errL := kt.ldr.New(path)
-			if errL != nil {
-				return nil, multierror.Append(
-					fmt.Errorf("accumulateFile error: %q", errF),
-					fmt.Errorf("loader.New error: %q", errL),
-				)
+			ldr, err := kt.ldr.New(path)
+			if err != nil {
+				return nil, errors.Wrapf(
+					err, "accumulation err='%s'", errF.Error())
 			}
-			var errD error
-			ra, errD = kt.accumulateDirectory(ra, ldr, false)
-			if errD != nil {
-				return nil, multierror.Append(
-					fmt.Errorf("accumulateFile error: %q", errF),
-					fmt.Errorf("accumulateDirector error: %q", errD),
-				)
+			ra, err = kt.accumulateDirectory(ra, ldr, false)
+			if err != nil {
+				return nil, errors.Wrapf(
+					err, "accumulation err='%s'", errF.Error())
 			}
 		}
 	}
@@ -382,6 +378,18 @@ func (kt *KustTarget) accumulateDirectory(
 		return nil, errors.Wrapf(
 			err, "couldn't make target for path '%s'", ldr.Root())
 	}
+	var bytes []byte
+	path := ldr.Root()
+	if openApiPath, exists := subKt.Kustomization().OpenAPI["path"]; exists {
+		bytes, err = ldr.Load(filepath.Join(path, openApiPath))
+		if err != nil {
+			return nil, err
+		}
+	}
+	err = openapi.SetSchema(subKt.Kustomization().OpenAPI, bytes, false)
+	if err != nil {
+		return nil, err
+	}
 	if isComponent && subKt.kustomization.Kind != types.ComponentKind {
 		return nil, fmt.Errorf(
 			"expected kind '%s' for path '%s' but got '%s'", types.ComponentKind, ldr.Root(), subKt.kustomization.Kind)
@@ -435,7 +443,10 @@ func (kt *KustTarget) configureBuiltinPlugin(
 				err, "builtin %s marshal", bpt)
 		}
 	}
-	err = p.Config(resmap.NewPluginHelpers(kt.ldr, kt.validator, kt.rFactory), y)
+	err = p.Config(
+		resmap.NewPluginHelpers(
+			kt.ldr, kt.validator, kt.rFactory, kt.pLdr.Config()),
+		y)
 	if err != nil {
 		return errors.Wrapf(
 			err, "trouble configuring builtin %s with config: `\n%s`", bpt, string(y))

api/internal/target/kusttarget_configplugin.go

@@ -57,6 +57,7 @@ func (kt *KustTarget) configureBuiltinTransformers(
 		builtinhelpers.PatchJson6902Transformer,
 		builtinhelpers.ReplicaCountTransformer,
 		builtinhelpers.ImageTagTransformer,
+		builtinhelpers.ReplacementTransformer,
 	} {
 		r, err := transformerConfigurators[bpt](
 			kt, bpt, builtinhelpers.TransformerFactories[bpt], tc)
@@ -112,16 +113,22 @@ var generatorConfigurators = map[builtinhelpers.BuiltinPluginType]func(
 		return
 	},
 
-	builtinhelpers.HelmChartInflationGenerator: func(kt *KustTarget, bpt builtinhelpers.BuiltinPluginType, f gFactory) (
+	builtinhelpers.HelmChartInflationGenerator: func(
+		kt *KustTarget, bpt builtinhelpers.BuiltinPluginType, f gFactory) (
 		result []resmap.Generator, err error) {
 		var c struct {
-			types.HelmChartArgs
+			types.HelmGlobals
+			types.HelmChart
 		}
-		for _, args := range kt.kustomization.HelmChartInflationGenerator {
-			c.HelmChartArgs = args
+		var globals types.HelmGlobals
+		if kt.kustomization.HelmGlobals != nil {
+			globals = *kt.kustomization.HelmGlobals
+		}
+		for _, chart := range kt.kustomization.HelmCharts {
+			c.HelmGlobals = globals
+			c.HelmChart = chart
 			p := f()
-			err := kt.configureBuiltinPlugin(p, c, bpt)
-			if err != nil {
+			if err = kt.configureBuiltinPlugin(p, c, bpt); err != nil {
 				return nil, err
 			}
 			result = append(result, p)
@@ -201,14 +208,16 @@ var transformerConfigurators = map[builtinhelpers.BuiltinPluginType]func(
 			return
 		}
 		var c struct {
-			Path   string          `json:"path,omitempty" yaml:"path,omitempty"`
-			Patch  string          `json:"patch,omitempty" yaml:"patch,omitempty"`
-			Target *types.Selector `json:"target,omitempty" yaml:"target,omitempty"`
+			Path    string          `json:"path,omitempty" yaml:"path,omitempty"`
+			Patch   string          `json:"patch,omitempty" yaml:"patch,omitempty"`
+			Target  *types.Selector `json:"target,omitempty" yaml:"target,omitempty"`
+			Options map[string]bool `json:"options,omitempty" yaml:"options,omitempty"`
 		}
 		for _, pc := range kt.kustomization.Patches {
 			c.Target = pc.Target
 			c.Patch = pc.Patch
 			c.Path = pc.Path
+			c.Options = pc.Options
 			p := f()
 			err = kt.configureBuiltinPlugin(p, c, bpt)
 			if err != nil {
@@ -221,6 +230,31 @@ var transformerConfigurators = map[builtinhelpers.BuiltinPluginType]func(
 	builtinhelpers.LabelTransformer: func(
 		kt *KustTarget, bpt builtinhelpers.BuiltinPluginType, f tFactory, tc *builtinconfig.TransformerConfig) (
 		result []resmap.Transformer, err error) {
+		for _, label := range kt.kustomization.Labels {
+			var c struct {
+				Labels     map[string]string
+				FieldSpecs []types.FieldSpec
+			}
+			c.Labels = label.Pairs
+			fss := types.FsSlice(label.FieldSpecs)
+			// merge the custom fieldSpecs with the default
+			if label.IncludeSelectors {
+				fss, err = fss.MergeAll(tc.CommonLabels)
+			} else {
+				// only add to metadata by default
+				fss, err = fss.MergeOne(types.FieldSpec{Path: "metadata/labels", CreateIfNotPresent: true})
+			}
+			if err != nil {
+				return nil, err
+			}
+			c.FieldSpecs = fss
+			p := f()
+			err = kt.configureBuiltinPlugin(p, c, bpt)
+			if err != nil {
+				return nil, err
+			}
+			result = append(result, p)
+		}
 		var c struct {
 			Labels     map[string]string
 			FieldSpecs []types.FieldSpec
@@ -290,6 +324,21 @@ var transformerConfigurators = map[builtinhelpers.BuiltinPluginType]func(
 		}
 		return
 	},
+	builtinhelpers.ReplacementTransformer: func(
+		kt *KustTarget, bpt builtinhelpers.BuiltinPluginType, f tFactory, _ *builtinconfig.TransformerConfig) (
+		result []resmap.Transformer, err error) {
+		var c struct {
+			Replacements []types.ReplacementField
+		}
+		c.Replacements = kt.kustomization.Replacements
+		p := f()
+		err = kt.configureBuiltinPlugin(p, c, bpt)
+		if err != nil {
+			return nil, err
+		}
+		result = append(result, p)
+		return result, nil
+	},
 	builtinhelpers.ReplicaCountTransformer: func(
 		kt *KustTarget, bpt builtinhelpers.BuiltinPluginType, f tFactory, tc *builtinconfig.TransformerConfig) (
 		result []resmap.Transformer, err error) {

api/internal/target/kusttarget_test.go

@@ -244,6 +244,7 @@ metadata:
 			t.Fatalf("unexpected error %v", err)
 		}
 	}
+	expected.RemoveBuildAnnotations()
 	expYaml, err := expected.AsYaml()
 	assert.NoError(t, err)
 
@@ -251,6 +252,7 @@ metadata:
 	assert.NoError(t, kt.Load())
 	actual, err := kt.MakeCustomizedResMap()
 	assert.NoError(t, err)
+	actual.RemoveBuildAnnotations()
 	actYaml, err := actual.AsYaml()
 	assert.NoError(t, err)
 	assert.Equal(t, expYaml, actYaml)

api/internal/target/maker_test.go

@@ -9,11 +9,11 @@ import (
 	"sigs.k8s.io/kustomize/api/filesys"
 	pLdr "sigs.k8s.io/kustomize/api/internal/plugins/loader"
 	"sigs.k8s.io/kustomize/api/internal/target"
-	"sigs.k8s.io/kustomize/api/konfig"
 	fLdr "sigs.k8s.io/kustomize/api/loader"
 	"sigs.k8s.io/kustomize/api/provider"
 	"sigs.k8s.io/kustomize/api/resmap"
 	valtest_test "sigs.k8s.io/kustomize/api/testutils/valtest"
+	"sigs.k8s.io/kustomize/api/types"
 )
 
 func makeAndLoadKustTarget(
@@ -36,12 +36,11 @@ func makeKustTargetWithRf(
 	if err != nil {
 		t.Fatal(err)
 	}
-	rf := resmap.NewFactory(
-		pvd.GetResourceFactory(), pvd.GetConflictDetectorFactory())
-	pc := konfig.DisabledPluginConfig()
+	rf := resmap.NewFactory(pvd.GetResourceFactory())
+	pc := types.DisabledPluginConfig()
 	return target.NewKustTarget(
 		ldr,
 		valtest_test.MakeFakeValidator(),
 		rf,
-		pLdr.NewLoader(pc, rf))
+		pLdr.NewLoader(pc, rf, fSys))
 }

api/internal/target/multitransformer.go

@@ -4,15 +4,12 @@
 package target
 
 import (
-	"fmt"
-
 	"sigs.k8s.io/kustomize/api/resmap"
 )
 
 // multiTransformer contains a list of transformers.
 type multiTransformer struct {
-	transformers         []resmap.Transformer
-	checkConflictEnabled bool
+	transformers []resmap.Transformer
 }
 
 var _ resmap.Transformer = &multiTransformer{}
@@ -20,8 +17,8 @@ var _ resmap.Transformer = &multiTransformer{}
 // newMultiTransformer constructs a multiTransformer.
 func newMultiTransformer(t []resmap.Transformer) resmap.Transformer {
 	r := &multiTransformer{
-		transformers:         make([]resmap.Transformer, len(t)),
-		checkConflictEnabled: false}
+		transformers: make([]resmap.Transformer, len(t)),
+	}
 	copy(r.transformers, t)
 	return r
 }
@@ -29,45 +26,11 @@ func newMultiTransformer(t []resmap.Transformer) resmap.Transformer {
 // Transform applies the member transformers in order to the resources,
 // optionally detecting and erroring on commutation conflict.
 func (o *multiTransformer) Transform(m resmap.ResMap) error {
-	if o.checkConflictEnabled {
-		return o.transformWithCheckConflict(m)
-	}
-	return o.transform(m)
-}
-
-func (o *multiTransformer) transform(m resmap.ResMap) error {
 	for _, t := range o.transformers {
-		err := t.Transform(m)
-		if err != nil {
+		if err := t.Transform(m); err != nil {
 			return err
 		}
+		m.DropEmpties()
 	}
 	return nil
 }
-
-// Of the len(o.transformers)! possible transformer orderings, compare to a reversed order.
-// A spot check to perform when the transformations are supposed to be commutative.
-// Fail if there's a difference in the result.
-func (o *multiTransformer) transformWithCheckConflict(m resmap.ResMap) error {
-	mcopy := m.DeepCopy()
-	err := o.transform(m)
-	if err != nil {
-		return err
-	}
-	o.reverseTransformers()
-	err = o.transform(mcopy)
-	if err != nil {
-		return err
-	}
-	err = m.ErrorIfNotEqualSets(mcopy)
-	if err != nil {
-		return fmt.Errorf("found conflict between different patches\n%v", err)
-	}
-	return nil
-}
-
-func (o *multiTransformer) reverseTransformers() {
-	for i, j := 0, len(o.transformers)-1; i < j; i, j = i+1, j-1 {
-		o.transformers[i], o.transformers[j] = o.transformers[j], o.transformers[i]
-	}
-}

api/internal/tools/tools.go

@@ -1,25 +0,0 @@
-// +build tools
-
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-// This file exists to automatically trigger installs
-// of the given tools, and is the official 'unofficial'
-// way to declare a dependence on a Go binary until
-// some better technique comes along.
-
-package tools
-
-import (
-	// for code generation
-	_ "golang.org/x/tools/cmd/stringer"
-	// for lint checks
-	_ "github.com/golangci/golangci-lint/cmd/golangci-lint"
-	// REMOVED pluginator from this process, and leaving
-	// this note to discourage its reintroduction,
-	// because pluginator depends on the api, forcing
-	// major version increments in pluginator with each
-	// api release to allow this trick to work and not
-	// introduce cycles.
-	// _ "sigs.k8s.io/kustomize/cmd/pluginator/v2"
-)

api/internal/utils/pathsplitter.go

@@ -0,0 +1,22 @@
+// Copyright 2021 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package utils
+
+import "strings"
+
+// PathSplitter splits a slash delimited string, permitting escaped slashes.
+func PathSplitter(path string) []string {
+	ps := strings.Split(path, "/")
+	var res []string
+	res = append(res, ps[0])
+	for i := 1; i < len(ps); i++ {
+		last := len(res) - 1
+		if strings.HasSuffix(res[last], `\`) {
+			res[last] = strings.TrimSuffix(res[last], `\`) + "/" + ps[i]
+		} else {
+			res = append(res, ps[i])
+		}
+	}
+	return res
+}

api/internal/utils/pathsplitter_test.go

@@ -0,0 +1,49 @@
+// Copyright 2021 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package utils_test
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	. "sigs.k8s.io/kustomize/api/internal/utils"
+)
+
+func TestPathSplitter(t *testing.T) {
+	for _, tc := range []struct {
+		exp  []string
+		path string
+	}{
+		{
+			path: "",
+			exp:  []string{""},
+		},
+		{
+			path: "s",
+			exp:  []string{"s"},
+		},
+		{
+			path: "a/b/c",
+			exp:  []string{"a", "b", "c"},
+		},
+		{
+			path: `a/b[]/c`,
+			exp:  []string{"a", "b[]", "c"},
+		},
+		{
+			path: `a/b\/c/d\/e/f`,
+			exp:  []string{"a", "b/c", "d/e", "f"},
+		},
+		{
+			// The actual reason for this.
+			path: `metadata/annotations/nginx.ingress.kubernetes.io\/auth-secret`,
+			exp: []string{
+				"metadata",
+				"annotations",
+				"nginx.ingress.kubernetes.io/auth-secret"},
+		},
+	} {
+		assert.Equal(t, tc.exp, PathSplitter(tc.path))
+	}
+}

api/internal/wrappy/factory.go

@@ -1,108 +0,0 @@
-// Copyright 2020 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package wrappy
-
-import (
-	"fmt"
-
-	"sigs.k8s.io/kustomize/api/hasher"
-	"sigs.k8s.io/kustomize/api/ifc"
-	"sigs.k8s.io/kustomize/api/internal/generators"
-	"sigs.k8s.io/kustomize/api/konfig"
-	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
-	"sigs.k8s.io/kustomize/kyaml/kio"
-	"sigs.k8s.io/kustomize/kyaml/yaml"
-)
-
-// WNodeFactory makes instances of WNode.
-//
-// These instances in turn adapt
-//   sigs.k8s.io/kustomize/kyaml/yaml.RNode
-// to implement ifc.Unstructured.
-// This factory is meant to implement ifc.KunstructuredFactory.
-//
-// This implementation should be thin, as both WNode and WNodeFactory must be
-// factored away (deleted) along with ifc.Kunstructured in favor of direct use
-// of RNode methods upon completion of
-// https://github.com/kubernetes-sigs/kustomize/issues/2506.
-//
-// See also api/krusty/internal/provider/depprovider.go
-type WNodeFactory struct {
-}
-
-var _ ifc.KunstructuredFactory = (*WNodeFactory)(nil)
-
-func (k *WNodeFactory) SliceFromBytes(bs []byte) ([]ifc.Kunstructured, error) {
-	yamlRNodes, err := kio.FromBytes(bs)
-	if err != nil {
-		return nil, err
-	}
-	var result []ifc.Kunstructured
-	for i := range yamlRNodes {
-		rn := yamlRNodes[i]
-		meta, err := rn.GetValidatedMetadata()
-		if err != nil {
-			return nil, err
-		}
-		if !shouldDropObject(meta) {
-			if foundNil, path := rn.HasNilEntryInList(); foundNil {
-				return nil, fmt.Errorf("empty item at %v in object %v", path, rn)
-			}
-			result = append(result, FromRNode(rn))
-		}
-	}
-	return result, nil
-}
-
-// shouldDropObject returns true if the resource should not be accumulated.
-func shouldDropObject(m yaml.ResourceMeta) bool {
-	_, y := m.ObjectMeta.Annotations[konfig.IgnoredByKustomizeResourceAnnotation]
-	return y
-}
-
-func (k *WNodeFactory) FromMap(m map[string]interface{}) ifc.Kunstructured {
-	rn, err := FromMap(m)
-	if err != nil {
-		// TODO(#WNodeFactory): handle or bubble error"
-		panic(err)
-	}
-	return rn
-}
-
-// kustHash computes a hash of an unstructured object.
-type kustHash struct{}
-
-// Hash returns a hash of the given object
-func (h *kustHash) Hash(m ifc.Kunstructured) (string, error) {
-	node, err := filtersutil.GetRNode(m)
-	if err != nil {
-		return "", err
-	}
-	return hasher.HashRNode(node)
-}
-
-func (k *WNodeFactory) Hasher() ifc.KunstructuredHasher {
-	return &kustHash{}
-}
-
-// MakeConfigMap makes a wrapped configmap.
-func (k *WNodeFactory) MakeConfigMap(
-	ldr ifc.KvLoader, args *types.ConfigMapArgs) (ifc.Kunstructured, error) {
-	rn, err := generators.MakeConfigMap(ldr, args)
-	if err != nil {
-		return nil, err
-	}
-	return FromRNode(rn), nil
-}
-
-// MakeSecret makes a wrapped secret.
-func (k *WNodeFactory) MakeSecret(
-	ldr ifc.KvLoader, args *types.SecretArgs) (ifc.Kunstructured, error) {
-	rn, err := generators.MakeSecret(ldr, args)
-	if err != nil {
-		return nil, err
-	}
-	return FromRNode(rn), nil
-}

api/internal/wrappy/factory_test.go

@@ -1,321 +0,0 @@
-// Copyright 2020 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package wrappy_test
-
-import (
-	"fmt"
-	"reflect"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	. "sigs.k8s.io/kustomize/api/internal/wrappy"
-)
-
-func TestHasher(t *testing.T) {
-	input := `
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: foo
-data:
-  one: ""
-binaryData:
-  two: ""
-`
-	expect := "698h7c7t9m"
-
-	factory := &WNodeFactory{}
-	k, err := factory.SliceFromBytes([]byte(input))
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	hasher := factory.Hasher()
-	result, err := hasher.Hash(k[0])
-	if err != nil {
-		t.Fatal(err)
-	}
-	if result != expect {
-		t.Fatalf("expect %s but got %s", expect, result)
-	}
-}
-
-func TestSliceFromBytes(t *testing.T) {
-	factory := &WNodeFactory{}
-	testConfigMap :=
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "winnie",
-			},
-		}
-	testConfigMapList :=
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMapList",
-			"items": []interface{}{
-				testConfigMap,
-				testConfigMap,
-			},
-		}
-	testDeploymentSpec := map[string]interface{}{
-		"template": map[string]interface{}{
-			"spec": map[string]interface{}{
-				"hostAliases": []interface{}{
-					map[string]interface{}{
-						"hostnames": []interface{}{
-							"a.example.com",
-						},
-						"ip": "8.8.8.8",
-					},
-				},
-			},
-		},
-	}
-	testDeploymentA := map[string]interface{}{
-		"apiVersion": "apps/v1",
-		"kind":       "Deployment",
-		"metadata": map[string]interface{}{
-			"name": "deployment-a",
-		},
-		"spec": testDeploymentSpec,
-	}
-	testDeploymentB := map[string]interface{}{
-		"apiVersion": "apps/v1",
-		"kind":       "Deployment",
-		"metadata": map[string]interface{}{
-			"name": "deployment-b",
-		},
-		"spec": testDeploymentSpec,
-	}
-	testDeploymentList :=
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "DeploymentList",
-			"items": []interface{}{
-				testDeploymentA,
-				testDeploymentB,
-			},
-		}
-
-	type expected struct {
-		out   []map[string]interface{}
-		isErr bool
-	}
-
-	testCases := map[string]struct {
-		input []byte
-		exp   expected
-	}{
-		"garbage": {
-			input: []byte("garbageIn: garbageOut"),
-			exp: expected{
-				isErr: true,
-			},
-		},
-		"noBytes": {
-			input: []byte{},
-			exp: expected{
-				out: []map[string]interface{}{},
-			},
-		},
-		"goodJson": {
-			input: []byte(`
-{"apiVersion":"v1","kind":"ConfigMap","metadata":{"name":"winnie"}}
-`),
-			exp: expected{
-				out: []map[string]interface{}{testConfigMap},
-			},
-		},
-		"goodYaml1": {
-			input: []byte(`
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: winnie
-`),
-			exp: expected{
-				out: []map[string]interface{}{testConfigMap},
-			},
-		},
-		"goodYaml2": {
-			input: []byte(`
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: winnie
----
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: winnie
-`),
-			exp: expected{
-				out: []map[string]interface{}{testConfigMap, testConfigMap},
-			},
-		},
-		"localConfigYaml": {
-			input: []byte(`
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: winnie-skip
-  annotations:
-    # this annotation causes the Resource to be ignored by kustomize
-    config.kubernetes.io/local-config: ""
----
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: winnie
-`),
-			exp: expected{
-				out: []map[string]interface{}{testConfigMap},
-			},
-		},
-		"garbageInOneOfTwoObjects": {
-			input: []byte(`
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: winnie
----
-WOOOOOOOOOOOOOOOOOOOOOOOOT:  woot
-`),
-			exp: expected{
-				isErr: true,
-			},
-		},
-		"emptyObjects": {
-			input: []byte(`
----
-#a comment
-
----
-
-`),
-			exp: expected{
-				out: []map[string]interface{}{},
-			},
-		},
-		"Missing .metadata.name in object": {
-			input: []byte(`
-apiVersion: v1
-kind: Namespace
-metadata:
-  annotations:
-    foo: bar
-`),
-			exp: expected{
-				isErr: true,
-			},
-		},
-		"nil value in list": {
-			input: []byte(`
-apiVersion: builtin
-kind: ConfigMapGenerator
-metadata:
-  name: kube100-site
-	labels:
-	  app: web
-testList:
-- testA
--
-`),
-			exp: expected{
-				isErr: true,
-			},
-		},
-		"List": {
-			input: []byte(`
-apiVersion: v1
-kind: List
-items:
-- apiVersion: v1
-  kind: ConfigMap
-  metadata:
-    name: winnie
-- apiVersion: v1
-  kind: ConfigMap
-  metadata:
-    name: winnie
-`),
-			exp: expected{
-				out: []map[string]interface{}{
-					testConfigMap,
-					testConfigMap},
-			},
-		},
-		"ConfigMapList": {
-			input: []byte(`
-apiVersion: v1
-kind: ConfigMapList
-items:
-- apiVersion: v1
-  kind: ConfigMap
-  metadata:
-    name: winnie
-- apiVersion: v1
-  kind: ConfigMap
-  metadata:
-    name: winnie
-`),
-			exp: expected{
-				out: []map[string]interface{}{testConfigMapList},
-			},
-		},
-		"listWithAnchors": {
-			input: []byte(`
-apiVersion: v1
-kind: DeploymentList
-items:
-- apiVersion: apps/v1
-  kind: Deployment
-  metadata:
-    name: deployment-a
-  spec: &hostAliases
-    template:
-      spec:
-        hostAliases:
-        - hostnames:
-          - a.example.com
-          ip: 8.8.8.8
-- apiVersion: apps/v1
-  kind: Deployment
-  metadata:
-    name: deployment-b
-  spec:
-    <<: *hostAliases
-`),
-			exp: expected{
-				out: []map[string]interface{}{testDeploymentList},
-			},
-		},
-	}
-
-	for n := range testCases {
-		tc := testCases[n]
-		t.Run(n, func(t *testing.T) {
-			rs, err := factory.SliceFromBytes(tc.input)
-			if err != nil {
-				assert.True(t, tc.exp.isErr)
-				return
-			}
-			assert.False(t, tc.exp.isErr)
-			assert.Equal(t, len(tc.exp.out), len(rs))
-			for i := range rs {
-				assert.Equal(
-					t, fmt.Sprintf("%v", tc.exp.out[i]), fmt.Sprintf("%v", rs[i].Map()))
-				if n != "listWithAnchors" {
-					// https://github.com/kubernetes-sigs/kustomize/issues/3271
-					if !reflect.DeepEqual(tc.exp.out[i], rs[i].Map()) {
-						t.Fatalf("%s:\nexpected: %v\n  actual: %v",
-							n, tc.exp.out[i], rs[i].Map())
-					}
-				}
-			}
-		})
-	}
-}

api/internal/wrappy/wnode.go

@@ -1,235 +0,0 @@
-// Copyright 2020 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package wrappy
-
-import (
-	"fmt"
-	"log"
-	"strings"
-
-	"sigs.k8s.io/kustomize/api/ifc"
-	"sigs.k8s.io/kustomize/api/resid"
-	"sigs.k8s.io/kustomize/kyaml/yaml"
-)
-
-// WNode implements ifc.Kunstructured using yaml.RNode.
-//
-// It exists only to help manage a switch from
-// kunstruct.UnstructAdapter to yaml.RNode as the core
-// representation of KRM objects in kustomize.
-//
-// It's got a silly name because we don't want it around for long,
-// and want its use to be obvious.
-type WNode struct {
-	node *yaml.RNode
-}
-
-var _ ifc.Kunstructured = (*WNode)(nil)
-
-func NewWNode() *WNode {
-	return FromRNode(yaml.NewRNode(nil))
-}
-
-func FromMap(m map[string]interface{}) (*WNode, error) {
-	n, err := yaml.FromMap(m)
-	if err != nil {
-		return nil, err
-	}
-	return FromRNode(n), nil
-}
-
-func FromRNode(node *yaml.RNode) *WNode {
-	return &WNode{node: node}
-}
-
-func (wn *WNode) demandMetaData(label string) yaml.ResourceMeta {
-	meta, err := wn.node.GetMeta()
-	if err != nil {
-		// Log and die since interface doesn't allow error.
-		log.Fatalf("for %s', expected valid resource: %v", label, err)
-	}
-	return meta
-}
-
-// Copy implements ifc.Kunstructured.
-func (wn *WNode) Copy() ifc.Kunstructured {
-	return &WNode{node: wn.node.Copy()}
-}
-
-// GetAnnotations implements ifc.Kunstructured.
-func (wn *WNode) GetAnnotations() map[string]string {
-	return wn.demandMetaData("GetAnnotations").Annotations
-}
-
-// GetFieldValue implements ifc.Kunstructured.
-func (wn *WNode) GetFieldValue(path string) (interface{}, error) {
-	fields := strings.Split(path, ".")
-	rn, err := wn.node.Pipe(yaml.Lookup(fields...))
-	if err != nil {
-		return nil, err
-	}
-	if rn == nil {
-		return nil, NoFieldError{path}
-	}
-	yn := rn.YNode()
-
-	// If this is an alias node, resolve it
-	if yn.Kind == yaml.AliasNode {
-		yn = yn.Alias
-	}
-
-	// Return value as map for DocumentNode and MappingNode kinds
-	if yn.Kind == yaml.DocumentNode || yn.Kind == yaml.MappingNode {
-		var result map[string]interface{}
-		if err := yn.Decode(&result); err != nil {
-			return nil, err
-		}
-		return result, err
-	}
-
-	// Return value as slice for SequenceNode kind
-	if yn.Kind == yaml.SequenceNode {
-		var result []interface{}
-		if err := yn.Decode(&result); err != nil {
-			return nil, err
-		}
-		return result, nil
-	}
-
-	// Return value value directly for all other (ScalarNode) kinds
-	return yn.Value, nil
-}
-
-// GetGvk implements ifc.Kunstructured.
-func (wn *WNode) GetGvk() resid.Gvk {
-	meta := wn.demandMetaData("GetGvk")
-	g, v := resid.ParseGroupVersion(meta.APIVersion)
-	return resid.Gvk{Group: g, Version: v, Kind: meta.Kind}
-}
-
-// GetDataMap implements ifc.Kunstructured.
-func (wn *WNode) GetDataMap() map[string]string {
-	return wn.node.GetDataMap()
-}
-
-// SetDataMap implements ifc.Kunstructured.
-func (wn *WNode) SetDataMap(m map[string]string) {
-	wn.node.SetDataMap(m)
-}
-
-// GetKind implements ifc.Kunstructured.
-func (wn *WNode) GetKind() string {
-	return wn.demandMetaData("GetKind").Kind
-}
-
-// GetLabels implements ifc.Kunstructured.
-func (wn *WNode) GetLabels() map[string]string {
-	return wn.demandMetaData("GetLabels").Labels
-}
-
-// GetName implements ifc.Kunstructured.
-func (wn *WNode) GetName() string {
-	return wn.demandMetaData("GetName").Name
-}
-
-// GetSlice implements ifc.Kunstructured.
-func (wn *WNode) GetSlice(path string) ([]interface{}, error) {
-	value, err := wn.GetFieldValue(path)
-	if err != nil {
-		return nil, err
-	}
-	if sliceValue, ok := value.([]interface{}); ok {
-		return sliceValue, nil
-	}
-	return nil, fmt.Errorf("node %s is not a slice", path)
-}
-
-// GetSlice implements ifc.Kunstructured.
-func (wn *WNode) GetString(path string) (string, error) {
-	value, err := wn.GetFieldValue(path)
-	if err != nil {
-		return "", err
-	}
-	if v, ok := value.(string); ok {
-		return v, nil
-	}
-	return "", fmt.Errorf("node %s is not a string: %v", path, value)
-}
-
-// Map implements ifc.Kunstructured.
-func (wn *WNode) Map() map[string]interface{} {
-	var result map[string]interface{}
-	if err := wn.node.YNode().Decode(&result); err != nil {
-		// Log and die since interface doesn't allow error.
-		log.Fatalf("failed to decode ynode: %v", err)
-	}
-	return result
-}
-
-// MarshalJSON implements ifc.Kunstructured.
-func (wn *WNode) MarshalJSON() ([]byte, error) {
-	return wn.node.MarshalJSON()
-}
-
-// MatchesAnnotationSelector implements ifc.Kunstructured.
-func (wn *WNode) MatchesAnnotationSelector(selector string) (bool, error) {
-	return wn.node.MatchesAnnotationSelector(selector)
-}
-
-// MatchesLabelSelector implements ifc.Kunstructured.
-func (wn *WNode) MatchesLabelSelector(selector string) (bool, error) {
-	return wn.node.MatchesLabelSelector(selector)
-}
-
-// SetAnnotations implements ifc.Kunstructured.
-func (wn *WNode) SetAnnotations(annotations map[string]string) {
-	if err := wn.node.SetAnnotations(annotations); err != nil {
-		log.Fatal(err) // interface doesn't allow error.
-	}
-}
-
-// SetGvk implements ifc.Kunstructured.
-func (wn *WNode) SetGvk(gvk resid.Gvk) {
-	wn.setMapField(yaml.NewScalarRNode(gvk.Kind), yaml.KindField)
-	wn.setMapField(yaml.NewScalarRNode(gvk.ApiVersion()), yaml.APIVersionField)
-}
-
-// SetLabels implements ifc.Kunstructured.
-func (wn *WNode) SetLabels(labels map[string]string) {
-	if err := wn.node.SetLabels(labels); err != nil {
-		log.Fatal(err) // interface doesn't allow error.
-	}
-}
-
-// SetName implements ifc.Kunstructured.
-func (wn *WNode) SetName(name string) {
-	wn.setMapField(yaml.NewScalarRNode(name), yaml.MetadataField, yaml.NameField)
-}
-
-// SetNamespace implements ifc.Kunstructured.
-func (wn *WNode) SetNamespace(ns string) {
-	if err := wn.node.SetNamespace(ns); err != nil {
-		log.Fatal(err) // interface doesn't allow error.
-	}
-}
-
-func (wn *WNode) setMapField(value *yaml.RNode, path ...string) {
-	if err := wn.node.SetMapField(value, path...); err != nil {
-		// Log and die since interface doesn't allow error.
-		log.Fatalf("failed to set field %v: %v", path, err)
-	}
-}
-
-// UnmarshalJSON implements ifc.Kunstructured.
-func (wn *WNode) UnmarshalJSON(data []byte) error {
-	return wn.node.UnmarshalJSON(data)
-}
-
-type NoFieldError struct {
-	Field string
-}
-
-func (e NoFieldError) Error() string {
-	return fmt.Sprintf("no field named '%s'", e.Field)
-}

api/internal/wrappy/wnode_test.go

@@ -1,585 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package wrappy
-
-import (
-	"strings"
-	"testing"
-
-	"github.com/google/go-cmp/cmp"
-	"gopkg.in/yaml.v3"
-	"sigs.k8s.io/kustomize/api/resid"
-	kyaml "sigs.k8s.io/kustomize/kyaml/yaml"
-)
-
-const (
-	deploymentLittleJson = `{"apiVersion":"apps/v1","kind":"Deployment",` +
-		`"metadata":{"name":"homer","namespace":"simpsons"}}`
-
-	deploymentBiggerJson = `
-{
-  "apiVersion": "apps/v1",
-  "kind": "Deployment",
-  "metadata": {
-    "name": "homer",
-    "namespace": "simpsons",
-    "labels": {
-      "fruit": "apple",
-      "veggie": "carrot"
-    },
-    "annotations": {
-      "area": "51",
-      "greeting": "Take me to your leader."
-    }
-  }
-}
-`
-	bigMapYaml = `Kind: Service
-complextree:
-  - field1:
-      - boolfield: true
-        floatsubfield: 1.01
-        intsubfield: 1010
-        stringsubfield: idx1010
-      - boolfield: false
-        floatsubfield: 1.011
-        intsubfield: 1011
-        stringsubfield: idx1011
-    field2:
-      - boolfield: true
-        floatsubfield: 1.02
-        intsubfield: 1020
-        stringsubfield: idx1020
-      - boolfield: false
-        floatsubfield: 1.021
-        intsubfield: 1021
-        stringsubfield: idx1021
-  - field1:
-      - boolfield: true
-        floatsubfield: 1.11
-        intsubfield: 1110
-        stringsubfield: idx1110
-      - boolfield: false
-        floatsubfield: 1.111
-        intsubfield: 1111
-        stringsubfield: idx1111
-    field2:
-      - boolfield: true
-        floatsubfield: 1.112
-        intsubfield: 1120
-        stringsubfield: idx1120
-      - boolfield: false
-        floatsubfield: 1.1121
-        intsubfield: 1121
-        stringsubfield: idx1121
-metadata:
-    labels:
-        app: application-name
-    name: service-name
-spec:
-    ports:
-        port: 80
-that:
-  - idx0
-  - idx1
-  - idx2
-  - idx3
-these:
-  - field1:
-      - idx010
-      - idx011
-    field2:
-      - idx020
-      - idx021
-  - field1:
-      - idx110
-      - idx111
-    field2:
-      - idx120
-      - idx121
-  - field1:
-      - idx210
-      - idx211
-    field2:
-      - idx220
-      - idx221
-this:
-    is:
-        aBool: true
-        aFloat: 1.001
-        aNilValue: null
-        aNumber: 1000
-        anEmptyMap: {}
-        anEmptySlice: []
-those:
-  - field1: idx0foo
-    field2: idx0bar
-  - field1: idx1foo
-    field2: idx1bar
-  - field1: idx2foo
-    field2: idx2bar
-`
-)
-
-func makeBigMap() map[string]interface{} {
-	return map[string]interface{}{
-		"Kind": "Service",
-		"metadata": map[string]interface{}{
-			"labels": map[string]interface{}{
-				"app": "application-name",
-			},
-			"name": "service-name",
-		},
-		"spec": map[string]interface{}{
-			"ports": map[string]interface{}{
-				"port": int64(80),
-			},
-		},
-		"this": map[string]interface{}{
-			"is": map[string]interface{}{
-				"aNumber":      int64(1000),
-				"aFloat":       float64(1.001),
-				"aNilValue":    nil,
-				"aBool":        true,
-				"anEmptyMap":   map[string]interface{}{},
-				"anEmptySlice": []interface{}{},
-				/*
-					TODO: test for unrecognizable (e.g. a function)
-						"unrecognizable": testing.InternalExample{
-							Name: "fooBar",
-						},
-				*/
-			},
-		},
-		"that": []interface{}{
-			"idx0",
-			"idx1",
-			"idx2",
-			"idx3",
-		},
-		"those": []interface{}{
-			map[string]interface{}{
-				"field1": "idx0foo",
-				"field2": "idx0bar",
-			},
-			map[string]interface{}{
-				"field1": "idx1foo",
-				"field2": "idx1bar",
-			},
-			map[string]interface{}{
-				"field1": "idx2foo",
-				"field2": "idx2bar",
-			},
-		},
-		"these": []interface{}{
-			map[string]interface{}{
-				"field1": []interface{}{"idx010", "idx011"},
-				"field2": []interface{}{"idx020", "idx021"},
-			},
-			map[string]interface{}{
-				"field1": []interface{}{"idx110", "idx111"},
-				"field2": []interface{}{"idx120", "idx121"},
-			},
-			map[string]interface{}{
-				"field1": []interface{}{"idx210", "idx211"},
-				"field2": []interface{}{"idx220", "idx221"},
-			},
-		},
-		"complextree": []interface{}{
-			map[string]interface{}{
-				"field1": []interface{}{
-					map[string]interface{}{
-						"stringsubfield": "idx1010",
-						"intsubfield":    int64(1010),
-						"floatsubfield":  float64(1.010),
-						"boolfield":      true,
-					},
-					map[string]interface{}{
-						"stringsubfield": "idx1011",
-						"intsubfield":    int64(1011),
-						"floatsubfield":  float64(1.011),
-						"boolfield":      false,
-					},
-				},
-				"field2": []interface{}{
-					map[string]interface{}{
-						"stringsubfield": "idx1020",
-						"intsubfield":    int64(1020),
-						"floatsubfield":  float64(1.020),
-						"boolfield":      true,
-					},
-					map[string]interface{}{
-						"stringsubfield": "idx1021",
-						"intsubfield":    int64(1021),
-						"floatsubfield":  float64(1.021),
-						"boolfield":      false,
-					},
-				},
-			},
-			map[string]interface{}{
-				"field1": []interface{}{
-					map[string]interface{}{
-						"stringsubfield": "idx1110",
-						"intsubfield":    int64(1110),
-						"floatsubfield":  float64(1.110),
-						"boolfield":      true,
-					},
-					map[string]interface{}{
-						"stringsubfield": "idx1111",
-						"intsubfield":    int64(1111),
-						"floatsubfield":  float64(1.111),
-						"boolfield":      false,
-					},
-				},
-				"field2": []interface{}{
-					map[string]interface{}{
-						"stringsubfield": "idx1120",
-						"intsubfield":    int64(1120),
-						"floatsubfield":  float64(1.1120),
-						"boolfield":      true,
-					},
-					map[string]interface{}{
-						"stringsubfield": "idx1121",
-						"intsubfield":    int64(1121),
-						"floatsubfield":  float64(1.1121),
-						"boolfield":      false,
-					},
-				},
-			},
-		},
-	}
-}
-
-func TestBasicYamlOperationFromMap(t *testing.T) {
-	bytes, err := yaml.Marshal(makeBigMap())
-	if err != nil {
-		t.Fatalf("unexpected yaml.Marshal err: %v", err)
-	}
-	if string(bytes) != bigMapYaml {
-		t.Fatalf("unexpected string equality")
-	}
-	rNode, err := kyaml.Parse(string(bytes))
-	if err != nil {
-		t.Fatalf("unexpected yaml.Marshal err: %v", err)
-	}
-	rNodeString := rNode.MustString()
-	// The result from MustString has more indentation
-	// than bigMapYaml.
-	rNodeStrings := strings.Split(rNodeString, "\n")
-	bigMapStrings := strings.Split(bigMapYaml, "\n")
-	if len(rNodeStrings) != len(bigMapStrings) {
-		t.Fatalf("line count mismatch")
-	}
-	for i := range rNodeStrings {
-		s1 := strings.TrimSpace(rNodeStrings[i])
-		s2 := strings.TrimSpace(bigMapStrings[i])
-		if s1 != s2 {
-			t.Fatalf("expected '%s'=='%s'", s1, s2)
-		}
-	}
-}
-
-func TestRoundTripJSON(t *testing.T) {
-	wn := NewWNode()
-	err := wn.UnmarshalJSON([]byte(deploymentLittleJson))
-	if err != nil {
-		t.Fatalf("unexpected UnmarshalJSON err: %v", err)
-	}
-	data, err := wn.MarshalJSON()
-	if err != nil {
-		t.Fatalf("unexpected MarshalJSON err: %v", err)
-	}
-	actual := string(data)
-	if actual != deploymentLittleJson {
-		t.Fatalf("expected %s, got %s", deploymentLittleJson, actual)
-	}
-}
-
-func TestGettingFields(t *testing.T) {
-	wn := NewWNode()
-	err := wn.UnmarshalJSON([]byte(deploymentBiggerJson))
-	if err != nil {
-		t.Fatalf("unexpected unmarshaljson err: %v", err)
-	}
-	gvk := wn.GetGvk()
-	expected := "apps"
-	actual := gvk.Group
-	if expected != actual {
-		t.Fatalf("expected '%s', got '%s'", expected, actual)
-	}
-	expected = "v1"
-	actual = gvk.Version
-	if expected != actual {
-		t.Fatalf("expected '%s', got '%s'", expected, actual)
-	}
-	expected = "Deployment"
-	actual = gvk.Kind
-	if expected != actual {
-		t.Fatalf("expected '%s', got '%s'", expected, actual)
-	}
-	actual = wn.GetKind()
-	if expected != actual {
-		t.Fatalf("expected '%s', got '%s'", expected, actual)
-	}
-	expected = "homer"
-	actual = wn.GetName()
-	if expected != actual {
-		t.Fatalf("expected '%s', got '%s'", expected, actual)
-	}
-	actualMap := wn.GetLabels()
-	v, ok := actualMap["fruit"]
-	if !ok || v != "apple" {
-		t.Fatalf("unexpected labels '%v'", actualMap)
-	}
-	actualMap = wn.GetAnnotations()
-	v, ok = actualMap["greeting"]
-	if !ok || v != "Take me to your leader." {
-		t.Fatalf("unexpected annotations '%v'", actualMap)
-	}
-}
-
-func TestGetFieldValueReturnsMap(t *testing.T) {
-	wn := NewWNode()
-	if err := wn.UnmarshalJSON([]byte(deploymentBiggerJson)); err != nil {
-		t.Fatalf("unexpected unmarshaljson err: %v", err)
-	}
-	expected := map[string]interface{}{
-		"fruit":  "apple",
-		"veggie": "carrot",
-	}
-	actual, err := wn.GetFieldValue("metadata.labels")
-	if err != nil {
-		t.Fatalf("error getting field value: %v", err)
-	}
-	if diff := cmp.Diff(expected, actual); diff != "" {
-		t.Fatalf("actual map does not deep equal expected map:\n%v", diff)
-	}
-}
-
-func TestGetFieldValueReturnsSlice(t *testing.T) {
-	bytes, err := yaml.Marshal(makeBigMap())
-	if err != nil {
-		t.Fatalf("unexpected yaml.Marshal err: %v", err)
-	}
-	rNode, err := kyaml.Parse(string(bytes))
-	if err != nil {
-		t.Fatalf("unexpected yaml.Marshal err: %v", err)
-	}
-	wn := FromRNode(rNode)
-	expected := []interface{}{"idx0", "idx1", "idx2", "idx3"}
-	actual, err := wn.GetFieldValue("that")
-	if err != nil {
-		t.Fatalf("error getting slice: %v", err)
-	}
-	if diff := cmp.Diff(expected, actual); diff != "" {
-		t.Fatalf("actual slice does not deep equal expected slice:\n%v", diff)
-	}
-}
-
-func TestGetFieldValueReturnsSliceOfMappings(t *testing.T) {
-	bytes, err := yaml.Marshal(makeBigMap())
-	if err != nil {
-		t.Fatalf("unexpected yaml.Marshal err: %v", err)
-	}
-	rNode, err := kyaml.Parse(string(bytes))
-	if err != nil {
-		t.Fatalf("unexpected yaml.Marshal err: %v", err)
-	}
-	wn := FromRNode(rNode)
-	expected := []interface{}{
-		map[string]interface{}{
-			"field1": "idx0foo",
-			"field2": "idx0bar",
-		},
-		map[string]interface{}{
-			"field1": "idx1foo",
-			"field2": "idx1bar",
-		},
-		map[string]interface{}{
-			"field1": "idx2foo",
-			"field2": "idx2bar",
-		},
-	}
-	actual, err := wn.GetFieldValue("those")
-	if err != nil {
-		t.Fatalf("error getting slice: %v", err)
-	}
-	if diff := cmp.Diff(expected, actual); diff != "" {
-		t.Fatalf("actual slice does not deep equal expected slice:\n%v", diff)
-	}
-}
-
-func TestGetFieldValueReturnsString(t *testing.T) {
-	wn := NewWNode()
-	if err := wn.UnmarshalJSON([]byte(deploymentBiggerJson)); err != nil {
-		t.Fatalf("unexpected unmarshaljson err: %v", err)
-	}
-	actual, err := wn.GetFieldValue("metadata.labels.fruit")
-	if err != nil {
-		t.Fatalf("error getting field value: %v", err)
-	}
-	v, ok := actual.(string)
-	if !ok || v != "apple" {
-		t.Fatalf("unexpected value '%v'", actual)
-	}
-}
-
-func TestGetFieldValueResolvesAlias(t *testing.T) {
-	yamlWithAlias := `
-foo: &a theValue
-bar: *a
-`
-	rNode, err := kyaml.Parse(yamlWithAlias)
-	if err != nil {
-		t.Fatalf("unexpected yaml parse error: %v", err)
-	}
-	wn := FromRNode(rNode)
-	actual, err := wn.GetFieldValue("bar")
-	if err != nil {
-		t.Fatalf("error getting field value: %v", err)
-	}
-	v, ok := actual.(string)
-	if !ok || v != "theValue" {
-		t.Fatalf("unexpected value '%v'", actual)
-	}
-}
-
-func TestGetString(t *testing.T) {
-	wn := NewWNode()
-	if err := wn.UnmarshalJSON([]byte(deploymentBiggerJson)); err != nil {
-		t.Fatalf("unexpected unmarshaljson err: %v", err)
-	}
-	expected := "carrot"
-	actual, err := wn.GetString("metadata.labels.veggie")
-	if err != nil {
-		t.Fatalf("error getting string: %v", err)
-	}
-	if expected != actual {
-		t.Fatalf("expected '%s', got '%s'", expected, actual)
-	}
-}
-
-func TestGetSlice(t *testing.T) {
-	bytes, err := yaml.Marshal(makeBigMap())
-	if err != nil {
-		t.Fatalf("unexpected yaml.Marshal err: %v", err)
-	}
-	rNode, err := kyaml.Parse(string(bytes))
-	if err != nil {
-		t.Fatalf("unexpected yaml.Marshal err: %v", err)
-	}
-	wn := FromRNode(rNode)
-	expected := []interface{}{"idx0", "idx1", "idx2", "idx3"}
-	actual, err := wn.GetSlice("that")
-	if err != nil {
-		t.Fatalf("error getting slice: %v", err)
-	}
-	if diff := cmp.Diff(expected, actual); diff != "" {
-		t.Fatalf("actual slice does not deep equal expected slice:\n%v", diff)
-	}
-}
-
-func TestMap(t *testing.T) {
-	wn := NewWNode()
-	if err := wn.UnmarshalJSON([]byte(deploymentLittleJson)); err != nil {
-		t.Fatalf("unexpected unmarshaljson err: %v", err)
-	}
-
-	expected := map[string]interface{}{
-		"apiVersion": "apps/v1",
-		"kind":       "Deployment",
-		"metadata": map[string]interface{}{
-			"name":      "homer",
-			"namespace": "simpsons",
-		},
-	}
-
-	actual := wn.Map()
-	if diff := cmp.Diff(expected, actual); diff != "" {
-		t.Fatalf("actual map does not deep equal expected map:\n%v", diff)
-	}
-}
-
-func TestSetName(t *testing.T) {
-	wn := NewWNode()
-	if err := wn.UnmarshalJSON([]byte(deploymentBiggerJson)); err != nil {
-		t.Fatalf("unexpected unmarshaljson err: %v", err)
-	}
-	wn.SetName("marge")
-	if expected, actual := "marge", wn.GetName(); expected != actual {
-		t.Fatalf("expected '%s', got '%s'", expected, actual)
-	}
-}
-
-func TestSetNamespace(t *testing.T) {
-	wn := NewWNode()
-	if err := wn.UnmarshalJSON([]byte(deploymentBiggerJson)); err != nil {
-		t.Fatalf("unexpected unmarshaljson err: %v", err)
-	}
-	wn.SetNamespace("flanders")
-	meta, _ := wn.node.GetMeta()
-	if expected, actual := "flanders", meta.Namespace; expected != actual {
-		t.Fatalf("expected '%s', got '%s'", expected, actual)
-	}
-}
-
-func TestSetLabels(t *testing.T) {
-	wn := NewWNode()
-	if err := wn.UnmarshalJSON([]byte(deploymentBiggerJson)); err != nil {
-		t.Fatalf("unexpected unmarshaljson err: %v", err)
-	}
-	wn.SetLabels(map[string]string{
-		"label1": "foo",
-		"label2": "bar",
-	})
-	labels := wn.GetLabels()
-	if expected, actual := 2, len(labels); expected != actual {
-		t.Fatalf("expected '%d', got '%d'", expected, actual)
-	}
-	if expected, actual := "foo", labels["label1"]; expected != actual {
-		t.Fatalf("expected '%s', got '%s'", expected, actual)
-	}
-	if expected, actual := "bar", labels["label2"]; expected != actual {
-		t.Fatalf("expected '%s', got '%s'", expected, actual)
-	}
-}
-
-func TestGetAnnotations(t *testing.T) {
-	wn := NewWNode()
-	if err := wn.UnmarshalJSON([]byte(deploymentBiggerJson)); err != nil {
-		t.Fatalf("unexpected unmarshaljson err: %v", err)
-	}
-	wn.SetAnnotations(map[string]string{
-		"annotation1": "foo",
-		"annotation2": "bar",
-	})
-	annotations := wn.GetAnnotations()
-	if expected, actual := 2, len(annotations); expected != actual {
-		t.Fatalf("expected '%d', got '%d'", expected, actual)
-	}
-	if expected, actual := "foo", annotations["annotation1"]; expected != actual {
-		t.Fatalf("expected '%s', got '%s'", expected, actual)
-	}
-	if expected, actual := "bar", annotations["annotation2"]; expected != actual {
-		t.Fatalf("expected '%s', got '%s'", expected, actual)
-	}
-}
-
-func TestSetGvk(t *testing.T) {
-	wn := NewWNode()
-	if err := wn.UnmarshalJSON([]byte(deploymentBiggerJson)); err != nil {
-		t.Fatalf("unexpected unmarshaljson err: %v", err)
-	}
-	wn.SetGvk(resid.GvkFromString("grp_ver_knd"))
-	gvk := wn.GetGvk()
-	if expected, actual := "grp", gvk.Group; expected != actual {
-		t.Fatalf("expected '%s', got '%s'", expected, actual)
-	}
-	if expected, actual := "ver", gvk.Version; expected != actual {
-		t.Fatalf("expected '%s', got '%s'", expected, actual)
-	}
-	if expected, actual := "knd", gvk.Kind; expected != actual {
-		t.Fatalf("expected '%s', got '%s'", expected, actual)
-	}
-}

api/k8sdeps/doc.go

@@ -1,70 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-// 2019 Nov 06  These notes are somewhat out of date, but left
-// for historical purposes need to be updated (or simply removed
-// with all the code).  The kubectl integration plan described
-// below is no longer the plan of record.
-//
-// --------
-//
-// It's possible that kustomize's features will be vendored into
-// the kubernetes/kubernetes repo and made available to kubectl
-// commands, while at the same time the kustomize program will
-// continue to exist as an independent CLI.  Vendoring snapshots
-// would be taken just before a kubectl release.
-//
-// This creates a problem in that freestanding-kustomize depends on
-// (for example):
-//
-//   https://github.com/kubernetes/apimachinery/
-//       tree/master/pkg/util/yaml
-//
-// It vendors that package into
-//   sigs.k8s.io/kustomize/vendor/k8s.io/apimachinery/
-//
-// Whereas kubectl-kustomize would have to depend on the "staging"
-// version of this code, located at
-//
-//   https://github.com/kubernetes/kubernetes/
-//       blob/master/staging/src/k8s.io/apimachinery/pkg/util/yaml
-//
-// which is "vendored" via symlinks:
-//   k8s.io/kubernetes/vendor/k8s.io/apimachinery
-// is a symlink to
-//   ../../staging/src/k8s.io/apimachinery
-//
-// The staging version is the canonical, under-development
-// version of the code that kubectl depends on, whereas the packages
-// at kubernetes/apimachinery are periodic snapshots of staging made
-// for outside tools to depend on.
-//
-// apimachinery isn't the only package that poses this problem, just
-// using it as a specific example.
-//
-// The kubectl binary cannot vendor in kustomize code that in
-// turn vendors in the non-staging packages.
-//
-// One way to fix some of this would be to copy code - a hard fork.
-// This has all the problems associated with a hard forking.
-//
-// Another way would be to break the kustomize repo into three:
-//
-// (1) kustomize - repo with the main() function,
-//     vendoring (2) and (3).
-//
-// (2) kustomize-libs - packages used by (1) with no
-//     apimachinery dependence.
-//
-// (3) kustomize-k8sdeps - A thin code layer that depends
-//     on (vendors) apimachinery to provide thin implementations
-//     to interfaces used in (2).
-//
-// The kubectl repo would then vendor from (2) only, and have
-// a local implementation of (3).  With that in mind, it's clear
-// that (3) doesn't have to be a repo; the kustomize version of
-// the thin layer can live directly in (1).
-//
-// This package is the code in (3), meant for kustomize.
-
-package k8sdeps

api/k8sdeps/kunstruct/factory.go

@@ -1,151 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package kunstruct
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"strconv"
-	"strings"
-
-	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
-	"k8s.io/apimachinery/pkg/util/yaml"
-	"sigs.k8s.io/kustomize/api/ifc"
-	"sigs.k8s.io/kustomize/api/internal/k8sdeps/configmapandsecret"
-	"sigs.k8s.io/kustomize/api/konfig"
-	"sigs.k8s.io/kustomize/api/types"
-)
-
-// KunstructuredFactoryImpl makes instances of UnstructAdapter.
-// These instances in turn adapt structs in
-//   k8s.io/apimachinery/pkg/apis/meta/v1/unstructured
-// to implement ifc.Kunstructured.
-// This factory is meant to implement ifc.KunstructuredFactory.
-type KunstructuredFactoryImpl struct {
-	hasher *kustHash
-}
-
-var _ ifc.KunstructuredFactory = &KunstructuredFactoryImpl{}
-
-// NewKunstructuredFactoryImpl returns a factory.
-func NewKunstructuredFactoryImpl() ifc.KunstructuredFactory {
-	return &KunstructuredFactoryImpl{hasher: NewKustHash()}
-}
-
-// Hasher returns a kunstructured hasher
-// input: kunstructured; output: string hash.
-func (kf *KunstructuredFactoryImpl) Hasher() ifc.KunstructuredHasher {
-	return kf.hasher
-}
-
-// SliceFromBytes returns a slice of Kunstructured.
-func (kf *KunstructuredFactoryImpl) SliceFromBytes(
-	in []byte) ([]ifc.Kunstructured, error) {
-	decoder := yaml.NewYAMLOrJSONDecoder(bytes.NewReader(in), 1024)
-	var result []ifc.Kunstructured
-	var err error
-	for err == nil || isEmptyYamlError(err) {
-		var out unstructured.Unstructured
-		err = decoder.Decode(&out)
-		if err == nil {
-			if len(out.Object) == 0 {
-				continue
-			}
-			err = kf.validate(out)
-			if err != nil {
-				return nil, err
-			}
-			if !kf.skipResource(out) {
-				result = append(result, &UnstructAdapter{Unstructured: out})
-			}
-		}
-	}
-	if err != io.EOF {
-		return nil, err
-	}
-	return result, nil
-}
-
-func isEmptyYamlError(err error) bool {
-	return strings.Contains(err.Error(), "is missing in 'null'")
-}
-
-// FromMap returns an instance of Kunstructured.
-func (kf *KunstructuredFactoryImpl) FromMap(
-	m map[string]interface{}) ifc.Kunstructured {
-	return &UnstructAdapter{Unstructured: unstructured.Unstructured{Object: m}}
-}
-
-// MakeConfigMap returns an instance of Kunstructured for ConfigMap
-func (kf *KunstructuredFactoryImpl) MakeConfigMap(
-	kvLdr ifc.KvLoader, args *types.ConfigMapArgs) (ifc.Kunstructured, error) {
-	o, err := configmapandsecret.NewFactory(kvLdr).MakeConfigMap(args)
-	if err != nil {
-		return nil, err
-	}
-	return NewKunstructuredFromObject(o)
-}
-
-// MakeSecret returns an instance of Kunstructured for Secret
-func (kf *KunstructuredFactoryImpl) MakeSecret(
-	kvLdr ifc.KvLoader, args *types.SecretArgs) (ifc.Kunstructured, error) {
-	o, err := configmapandsecret.NewFactory(kvLdr).MakeSecret(args)
-	if err != nil {
-		return nil, err
-	}
-	return NewKunstructuredFromObject(o)
-}
-
-// validate validates that u has kind and name
-// except for kind `List`, which doesn't require a name
-func (kf *KunstructuredFactoryImpl) validate(u unstructured.Unstructured) error {
-	kind := u.GetKind()
-	if kind == "" {
-		return fmt.Errorf("missing kind in object %v", u)
-	} else if strings.HasSuffix(kind, "List") {
-		return nil
-	}
-	if u.GetName() == "" {
-		return fmt.Errorf("missing metadata.name in object %v", u)
-	}
-
-	if result, path := checkListItemNil(u.Object); result {
-		return fmt.Errorf("empty item at %v in object %v", path, u)
-	}
-	return nil
-}
-
-// skipResource returns true if the Resource should not be accumulated
-func (kf *KunstructuredFactoryImpl) skipResource(u unstructured.Unstructured) bool {
-	an := u.GetAnnotations()
-	if an == nil {
-		// annotation unset
-		return false
-	}
-	// check if the Resource has opt-ed out of kustomize
-	_, found := an[konfig.IgnoredByKustomizeResourceAnnotation]
-	return found
-}
-
-func checkListItemNil(in interface{}) (bool, string) {
-	switch v := in.(type) {
-	case map[string]interface{}:
-		for key, s := range v {
-			if result, path := checkListItemNil(s); result {
-				return result, key + "/" + path
-			}
-		}
-	case []interface{}:
-		for index, s := range v {
-			if s == nil {
-				return true, ""
-			}
-			if result, path := checkListItemNil(s); result {
-				return result, "[" + strconv.Itoa(index) + "]/" + path
-			}
-		}
-	}
-	return false, ""
-}

api/k8sdeps/kunstruct/factory_test.go

@@ -1,237 +0,0 @@
-/*
-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 kunstruct
-
-import (
-	"reflect"
-	"testing"
-
-	"sigs.k8s.io/kustomize/api/ifc"
-)
-
-func TestSliceFromBytes(t *testing.T) {
-	factory := NewKunstructuredFactoryImpl()
-	testConfigMap := factory.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "winnie",
-			},
-		})
-	testList := factory.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "List",
-			"items": []interface{}{
-				testConfigMap.Map(),
-				testConfigMap.Map(),
-			},
-		})
-	testConfigMapList := factory.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMapList",
-			"items": []interface{}{
-				testConfigMap.Map(),
-				testConfigMap.Map(),
-			},
-		})
-
-	tests := []struct {
-		name        string
-		input       []byte
-		expectedOut []ifc.Kunstructured
-		expectedErr bool
-	}{
-		{
-			name:        "garbage",
-			input:       []byte("garbageIn: garbageOut"),
-			expectedOut: []ifc.Kunstructured{},
-			expectedErr: true,
-		},
-		{
-			name:        "noBytes",
-			input:       []byte{},
-			expectedOut: []ifc.Kunstructured{},
-			expectedErr: false,
-		},
-		{
-			name: "goodJson",
-			input: []byte(`
-{"apiVersion":"v1","kind":"ConfigMap","metadata":{"name":"winnie"}}
-`),
-			expectedOut: []ifc.Kunstructured{testConfigMap},
-			expectedErr: false,
-		},
-		{
-			name: "goodYaml1",
-			input: []byte(`
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: winnie
-`),
-			expectedOut: []ifc.Kunstructured{testConfigMap},
-			expectedErr: false,
-		},
-		{
-			name: "goodYaml2",
-			input: []byte(`
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: winnie
----
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: winnie
-`),
-			expectedOut: []ifc.Kunstructured{testConfigMap, testConfigMap},
-			expectedErr: false,
-		},
-		{
-			name: "localConfigYaml",
-			input: []byte(`
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: winnie-skip
-  annotations:
-    # this annotation causes the Resource to be ignored by kustomize
-    config.kubernetes.io/local-config: ""
----
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: winnie 
-`),
-			expectedOut: []ifc.Kunstructured{testConfigMap},
-			expectedErr: false,
-		},
-		{
-			name: "garbageInOneOfTwoObjects",
-			input: []byte(`
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: winnie
----
-WOOOOOOOOOOOOOOOOOOOOOOOOT:  woot
-`),
-			expectedOut: []ifc.Kunstructured{},
-			expectedErr: true,
-		},
-		{
-			name: "emptyObjects",
-			input: []byte(`
----
-#a comment
-
----
-
-`),
-			expectedOut: []ifc.Kunstructured{},
-			expectedErr: false,
-		},
-		{
-			name: "Missing .metadata.name in object",
-			input: []byte(`
-apiVersion: v1
-kind: Namespace
-metadata:
-  annotations:
-    foo: bar
-`),
-			expectedOut: nil,
-			expectedErr: true,
-		},
-		{
-			name: "nil value in list",
-			input: []byte(`
-apiVersion: builtin
-kind: ConfigMapGenerator
-metadata:
-  name: kube100-site
-  labels:
-    app: web
-    testList:
-      - testA
-      - 
-`),
-			expectedOut: nil,
-			expectedErr: true,
-		},
-		{
-			name: "List",
-			input: []byte(`
-apiVersion: v1
-kind: List
-items:
-- apiVersion: v1
-  kind: ConfigMap
-  metadata:
-    name: winnie
-- apiVersion: v1
-  kind: ConfigMap
-  metadata:
-    name: winnie
-`),
-			expectedOut: []ifc.Kunstructured{testList},
-			expectedErr: false,
-		},
-		{
-			name: "ConfigMapList",
-			input: []byte(`
-apiVersion: v1
-kind: ConfigMapList
-items:
-- apiVersion: v1
-  kind: ConfigMap
-  metadata:
-    name: winnie
-- apiVersion: v1
-  kind: ConfigMap
-  metadata:
-    name: winnie
-`),
-			expectedOut: []ifc.Kunstructured{testConfigMapList},
-			expectedErr: false,
-		},
-	}
-
-	for _, test := range tests {
-		rs, err := factory.SliceFromBytes(test.input)
-		if test.expectedErr && err == nil {
-			t.Fatalf("%v: should return error", test.name)
-		}
-		if !test.expectedErr && err != nil {
-			t.Fatalf("%v: unexpected error: %s", test.name, err)
-		}
-		if len(rs) != len(test.expectedOut) {
-			t.Fatalf("%s: length mismatch %d != %d",
-				test.name, len(rs), len(test.expectedOut))
-		}
-		for i := range rs {
-			if !reflect.DeepEqual(test.expectedOut[i], rs[i]) {
-				t.Fatalf("%s: Got: %v\nexpected:%v",
-					test.name, test.expectedOut[i], rs[i])
-			}
-		}
-	}
-}

api/k8sdeps/kunstruct/hasher.go

@@ -1,27 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package kunstruct
-
-import (
-	"sigs.k8s.io/kustomize/api/hasher"
-	"sigs.k8s.io/kustomize/api/ifc"
-	"sigs.k8s.io/kustomize/kyaml/filtersutil"
-)
-
-// kustHash computes a hash of an unstructured object.
-type kustHash struct{}
-
-// NewKustHash returns a kustHash object
-func NewKustHash() *kustHash {
-	return &kustHash{}
-}
-
-// Hash returns a hash of the given object
-func (h *kustHash) Hash(m ifc.Kunstructured) (string, error) {
-	node, err := filtersutil.GetRNode(m)
-	if err != nil {
-		return "", err
-	}
-	return hasher.HashRNode(node)
-}

api/k8sdeps/kunstruct/hasher_test.go

@@ -1,34 +0,0 @@
-package kunstruct
-
-import (
-	"testing"
-)
-
-func TestHasher(t *testing.T) {
-	input := `
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: foo
-data:
-  one: ""
-binaryData:
-  two: ""
-`
-	expect := "698h7c7t9m"
-
-	factory := NewKunstructuredFactoryImpl()
-	k, err := factory.SliceFromBytes([]byte(input))
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	hasher := NewKustHash()
-	result, err := hasher.Hash(k[0])
-	if err != nil {
-		t.Fatal(err)
-	}
-	if result != expect {
-		t.Fatalf("expect %s but got %s", expect, result)
-	}
-}