Merge pull request #3068 from monopole/pinToKyamlv0.9.1_cliUtilsv0.20.4

Pin to kyaml/v0.9.1 and cli-utils/v0.20.4

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,68 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ""
+labels:
+  - kind/bug
+assignees: ""
+---
+
+<!--
+Please read this page: https://kubernetes-sigs.github.io/kustomize/contributing/bugs/ before
+filing a bug
+-->
+
+<!-- Feel free to skip the sections if they are not applicable. -->
+
+**Describe the bug**
+
+<!-- A clear and concise description of what the bug is. -->
+
+**Files that can reproduce the issue**
+
+<!--
+We cannot figure out or fix the issue if we don't know how to reproduce. Please
+provide a minimum set of files that can reproduce the issue. You can paste the
+file contents here or provide a link to a tarball or git repo.
+
+Example:
+
+kustomization.yaml
+
+```
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+...
+```
+
+resources.yaml
+
+```
+apiVersion: v1
+kind: Deployment
+...
+```
+
+...
+-->
+
+**Expected output**
+
+<!-- What's the expected output? -->
+
+**Actual output**
+
+<!-- What's the actual output? -->
+
+**Kustomize version**
+
+<!-- Please use the latest version when it's possible. -->
+
+**Platform**
+
+<!-- Linux/macOS/Windows? -->
+
+**Additional context**
+
+<!-- Add any other context about the problem here. -->

.github/ISSUE_TEMPLATE/config.yaml

@@ -0,0 +1 @@
+blank_issues_enabled: true

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,26 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ""
+labels:
+  - kind/feature
+assignees: ""
+---
+
+<!-- Feel free to skip the sections if they are not applicable. -->
+
+**Is your feature request related to a problem? Please describe.**
+
+<!-- A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] -->
+
+**Describe the solution you'd like**
+
+<!-- A clear and concise description of what you want to happen. -->
+
+**Describe alternatives you've considered**
+
+<!-- A clear and concise description of any alternative solutions or features you've considered. -->
+
+**Additional context**
+
+<!-- Add any other context or screenshots about the feature request here. -->

.github/ISSUE_TEMPLATE/question.md

@@ -0,0 +1,9 @@
+---
+name: Question
+about: Ask a question about the kustomize
+title: "[Question]"
+labels: ""
+assignees: ""
+---
+
+<!-- Please describe your question here -->

Makefile

@@ -15,7 +15,8 @@ verify-kustomize: \
 	lint-kustomize \
 	test-unit-kustomize-all \
 	test-examples-kustomize-against-HEAD \
-	test-examples-kustomize-against-3.8.0
+	test-examples-kustomize-against-3.8.0 \
+	test-examples-kustomize-against-3.8.2
 
 # The following target referenced by a file in
 # https://github.com/kubernetes/test-infra/tree/master/config/jobs/kubernetes-sigs/kustomize
@@ -26,7 +27,8 @@ prow-presubmit-check: \
 	test-unit-cmd-all \
 	test-go-mod \
 	test-examples-kustomize-against-HEAD \
-	test-examples-kustomize-against-3.8.0
+	test-examples-kustomize-against-3.8.0 \
+	test-examples-kustomize-against-3.8.2
 
 .PHONY: verify-kustomize-e2e
 verify-kustomize-e2e: test-examples-e2e-kustomize
@@ -45,17 +47,18 @@ $(MYGOBIN)/golangci-lint-kustomize:
 		GO111MODULE=on go build -tags=tools -o $(MYGOBIN)/golangci-lint-kustomize github.com/golangci/golangci-lint/cmd/golangci-lint; \
 	)
 
-# Version pinned by api/go.mod
+$(MYGOBIN)/gorepomod:
+	cd api; \
+	go install github.com/monopole/gorepomod
+
 $(MYGOBIN)/mdrip:
 	cd api; \
 	go install github.com/monopole/mdrip
 
-# Version pinned by api/go.mod
 $(MYGOBIN)/stringer:
 	cd api; \
 	go install golang.org/x/tools/cmd/stringer
 
-# Version pinned by api/go.mod
 $(MYGOBIN)/goimports:
 	cd api; \
 	go install golang.org/x/tools/cmd/goimports
@@ -81,6 +84,8 @@ $(MYGOBIN)/kustomize:
 install-tools: \
 	$(MYGOBIN)/goimports \
 	$(MYGOBIN)/golangci-lint-kustomize \
+	$(MYGOBIN)/gh \
+	$(MYGOBIN)/gorepomod \
 	$(MYGOBIN)/mdrip \
 	$(MYGOBIN)/pluginator \
 	$(MYGOBIN)/stringer
@@ -245,6 +250,19 @@ test-examples-kustomize-against-3.8.0: $(MYGOBIN)/mdrip
 		cd kustomize; go install .; \
 	)
 
+.PHONY:
+test-examples-kustomize-against-3.8.2: $(MYGOBIN)/mdrip
+	( \
+		set -e; \
+		tag=v3.8.2; \
+		/bin/rm -f $(MYGOBIN)/kustomize; \
+		echo "Installing kustomize $$tag."; \
+		GO111MODULE=on go get sigs.k8s.io/kustomize/kustomize/v3@$${tag}; \
+		./hack/testExamplesAgainstKustomize.sh $$tag; \
+		echo "Reinstalling kustomize from HEAD."; \
+		cd kustomize; go install .; \
+	)
+
 # linux only.
 # This is for testing an example plugin that
 # uses kubeval for validation.
@@ -304,6 +322,18 @@ $(MYGOBIN)/kind:
         rm -rf $$d; \
 	)
 
+# linux only.
+$(MYGOBIN)/gh:
+	( \
+		set -e; \
+		d=$(shell mktemp -d); cd $$d; \
+		tgzFile=gh_1.0.0_linux_amd64.tar.gz; \
+		wget https://github.com/cli/cli/releases/download/v1.0.0/$$tgzFile; \
+		tar -xvzf $$tgzFile; \
+		mv gh_1.0.0_linux_amd64/bin/gh  $(MYGOBIN)/gh; \
+		rm -rf $$d \
+	)
+
 .PHONY: clean
 clean: kustomize-external-go-plugin-clean
 	go clean --cache

OWNERS_ALIASES

@@ -11,3 +11,4 @@ aliases:
     - pwittrock
     - mortent
     - phanimarupaka
+    - Shell32-Natsu

api/builtins/ImageTagTransformer.go

@@ -31,14 +31,15 @@ func (p *ImageTagTransformerPlugin) Config(
 
 func (p *ImageTagTransformerPlugin) Transform(m resmap.ResMap) error {
 	for _, r := range m.Resources() {
-		// If you're here because someone expected any field containing
-		// the string "containers" or "initContainers" to get an image
-		// update (not just spec/template/spec/containers[], etc.) then
-		// a code change is needed.  See api/filters/imagetag/legacy
-		// for the start of an implementation that won't use an
-		// allowlist like FsSlice, and instead walks the object looking
-		// for fields named containers or initContainers.
-		err := filtersutil.ApplyToJSON(imagetag.Filter{
+		// traverse all fields at first
+		err := filtersutil.ApplyToJSON(imagetag.LegacyFilter{
+			ImageTag: p.ImageTag,
+		}, r)
+		if err != nil {
+			return err
+		}
+		// then use user specified field specs
+		err = filtersutil.ApplyToJSON(imagetag.Filter{
 			ImageTag: p.ImageTag,
 			FsSlice:  p.FieldSpecs,
 		}, r)

api/builtins/NamespaceTransformer.go

@@ -33,7 +33,7 @@ func (p *NamespaceTransformerPlugin) Transform(m resmap.ResMap) error {
 		return nil
 	}
 	for _, r := range m.Resources() {
-		if len(r.Map()) == 0 {
+		if r.IsEmpty() {
 			// Don't mutate empty objects?
 			continue
 		}

api/builtins/PatchStrategicMergeTransformer.go

@@ -64,7 +64,7 @@ func (p *PatchStrategicMergeTransformerPlugin) Config(
 }
 
 func (p *PatchStrategicMergeTransformerPlugin) Transform(m resmap.ResMap) error {
-	patches, err := p.h.ResmapFactory().MergePatches(p.loadedPatches)
+	patches, err := p.h.ResmapFactory().Merge(p.loadedPatches)
 	if err != nil {
 		return err
 	}
@@ -94,14 +94,14 @@ func (p *PatchStrategicMergeTransformerPlugin) Transform(m resmap.ResMap) error
 				// Some unknown error, let it through.
 				return err
 			}
-			if len(target.Map()) != 0 {
+			if !target.IsEmpty() {
 				return errors.Wrapf(
 					err, "with unexpectedly non-empty object map of size %d",
 					len(target.Map()))
 			}
 			// Fall through to handle deleted object.
 		}
-		if len(target.Map()) == 0 {
+		if target.IsEmpty() {
 			// This means all fields have been removed from the object.
 			// This can happen if a patch required deletion of the
 			// entire resource (not just a part of it).  This means

api/builtins/PatchTransformer.go

@@ -8,6 +8,7 @@ import (
 	"strings"
 
 	jsonpatch "github.com/evanphx/json-patch"
+	"github.com/pkg/errors"
 	"sigs.k8s.io/kustomize/api/filters/patchjson6902"
 	"sigs.k8s.io/kustomize/api/filters/patchstrategicmerge"
 	"sigs.k8s.io/kustomize/api/resmap"
@@ -101,7 +102,31 @@ func (p *PatchTransformerPlugin) transformStrategicMerge(m resmap.ResMap, patch
 		patchCopy.SetGvk(res.GetGvk())
 		err := p.applySMPatch(res, patchCopy)
 		if err != nil {
-			return err
+			// Check for an error string from UnmarshalJSON that's indicative
+			// of an object that's missing basic KRM fields, and thus may have been
+			// entirely deleted (an acceptable outcome).  This error handling should
+			// be deleted along with use of ResMap and apimachinery functions like
+			// UnmarshalJSON.
+			if !strings.Contains(err.Error(), "Object 'Kind' is missing") {
+				// Some unknown error, let it through.
+				return err
+			}
+			if !res.IsEmpty() {
+				return errors.Wrapf(
+					err, "with unexpectedly non-empty object map of size %d",
+					len(res.Map()))
+			}
+			// Fall through to handle deleted object.
+		}
+		if res.IsEmpty() {
+			// This means all fields have been removed from the object.
+			// This can happen if a patch required deletion of the
+			// entire resource (not just a part of it).  This means
+			// the overall resmap must shrink by one.
+			err = m.Remove(res.CurId())
+			if err != nil {
+				return err
+			}
 		}
 	}
 	return nil
@@ -114,9 +139,15 @@ func (p *PatchTransformerPlugin) applySMPatch(resource, patch *resource.Resource
 	if err != nil {
 		return err
 	}
-	return filtersutil.ApplyToJSON(patchstrategicmerge.Filter{
+	n, ns := resource.GetName(), resource.GetNamespace()
+	err = filtersutil.ApplyToJSON(patchstrategicmerge.Filter{
 		Patch: node,
 	}, resource)
+	if !resource.IsEmpty() {
+		resource.SetName(n)
+		resource.SetNamespace(ns)
+	}
+	return err
 }
 
 // transformJson6902 applies the provided json6902 patch

api/filters/fieldspec/fieldspec.go

@@ -51,6 +51,9 @@ func (fltr Filter) filter(obj *yaml.RNode) error {
 		// found the field -- set its value
 		return fltr.SetValue(obj)
 	}
+	if obj.IsTaggedNull() {
+		return nil
+	}
 	switch obj.YNode().Kind {
 	case yaml.SequenceNode:
 		return fltr.seq(obj)
@@ -67,7 +70,7 @@ func (fltr Filter) field(obj *yaml.RNode) error {
 	// lookup the field matching the next path element
 	var lookupField yaml.Filter
 	var kind yaml.Kind
-	tag := "" // TODO: change to yaml.NodeTagEmpty
+	tag := yaml.NodeTagEmpty
 	switch {
 	case !fltr.FieldSpec.CreateIfNotPresent || fltr.CreateKind == 0 || isSeq:
 		// dont' create the field if we don't find it
@@ -95,9 +98,10 @@ func (fltr Filter) field(obj *yaml.RNode) error {
 		return errors.WrapPrefixf(err, "fieldName: %s", fieldName)
 	}
 
-	// if the value exists, but is null, then change it to the creation type
+	// if the value exists, but is null and kind is set,
+	// then change it to the creation type
 	// TODO: update yaml.LookupCreate to support this
-	if field.YNode().Tag == yaml.NodeTagNull {
+	if field.YNode().Tag == yaml.NodeTagNull && yaml.IsCreate(kind) {
 		field.YNode().Kind = kind
 		field.YNode().Tag = tag
 	}

api/filters/fieldspec/fieldspec_test.go

@@ -433,7 +433,6 @@ spec:
 			SetValue:   filtersutil.SetScalar("bar"),
 			CreateKind: yaml.ScalarNode,
 		},
-		error: "obj '' at path 'spec/containers/image': expected sequence or mapping node",
 	},
 	{
 		name: "filedname with slash '/'",

api/filters/nameref/nameref.go

@@ -86,6 +86,26 @@ func (f Filter) setScalar(node *yaml.RNode) error {
 	return 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
+		}
+		if !referrer.PrefixesSuffixesEquals(m) {
+			continue
+		}
+		ret = append(ret, m)
+	}
+	return ret
+}
+
 // 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
@@ -103,12 +123,19 @@ func selectReferral(
 		id := res.OrgId()
 		if id.IsSelected(&target) && res.GetOriginalName() == oldName {
 			matches := referralCandidates.GetMatchingResourcesByOriginalId(id.Equals)
-			// If there's more than one match, there's no way
-			// to know which one to pick, so emit error.
+			// If there's more than one match,
+			// filter the matches by prefix and suffix
 			if len(matches) > 1 {
-				return "", "", fmt.Errorf(
-					"multiple matches for %s:\n  %v",
-					id, getIds(matches))
+				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
+				}
 			}
 			// In the resource, note that it is referenced
 			// by the referrer.

api/filters/nameref/nameref_test.go

@@ -168,6 +168,44 @@ metadata:
 map:
   name: newName
   namespace: oldNs
+`,
+			filter: Filter{
+				FieldSpec: types.FieldSpec{Path: "map"},
+				Target: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+		},
+		"null value": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+map:
+  name: null
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: NotSecret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", ""},
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+map:
+  name: null
 `,
 			filter: Filter{
 				FieldSpec: types.FieldSpec{Path: "map"},
@@ -217,27 +255,6 @@ func TestNamerefFilterUnhappy(t *testing.T) {
 		filter        Filter
 		originalNames []string
 	}{
-		"invalid node type": {
-			input: `
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: dep
-ref:
-  name: null
-`,
-			candidates:    "",
-			originalNames: []string{},
-			expected:      "obj '' at path 'ref/name': node is expected to be either a string or a slice of string or a map of string",
-			filter: Filter{
-				FieldSpec: types.FieldSpec{Path: "ref/name"},
-				Target: resid.Gvk{
-					Group:   "apps",
-					Version: "v1",
-					Kind:    "Secret",
-				},
-			},
-		},
 		"multiple match": {
 			input: `
 apiVersion: apps/v1
@@ -331,3 +348,434 @@ 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
+	}{
+		"prefix match": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"prefix1", "prefix2"},
+			suffix:        []string{"", "suffix2"},
+			inputPrefix:   "prefix1",
+			inputSuffix:   "",
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: newName
+`,
+			filter: Filter{
+				FieldSpec: types.FieldSpec{Path: "ref/name"},
+				Target: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: false,
+		},
+		"suffix match": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"", "prefix2"},
+			suffix:        []string{"suffix1", "suffix2"},
+			inputPrefix:   "",
+			inputSuffix:   "suffix1",
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: newName
+`,
+			filter: Filter{
+				FieldSpec: types.FieldSpec{Path: "ref/name"},
+				Target: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: false,
+		},
+		"prefix suffix both match": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"prefix1", "prefix2"},
+			suffix:        []string{"suffix1", "suffix2"},
+			inputPrefix:   "prefix1",
+			inputSuffix:   "suffix1",
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: newName
+`,
+			filter: Filter{
+				FieldSpec: types.FieldSpec{Path: "ref/name"},
+				Target: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: false,
+		},
+		"multiple match: both": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"prefix", "prefix"},
+			suffix:        []string{"suffix", "suffix"},
+			inputPrefix:   "prefix",
+			inputSuffix:   "suffix",
+			expected:      "",
+			filter: Filter{
+				FieldSpec: types.FieldSpec{Path: "ref/name"},
+				Target: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: true,
+		},
+		"multiple match: only prefix": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"prefix", "prefix"},
+			suffix:        []string{"", ""},
+			inputPrefix:   "prefix",
+			inputSuffix:   "",
+			expected:      "",
+			filter: Filter{
+				FieldSpec: types.FieldSpec{Path: "ref/name"},
+				Target: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: true,
+		},
+		"multiple match: only suffix": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"", ""},
+			suffix:        []string{"suffix", "suffix"},
+			inputPrefix:   "",
+			inputSuffix:   "suffix",
+			expected:      "",
+			filter: Filter{
+				FieldSpec: types.FieldSpec{Path: "ref/name"},
+				Target: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: true,
+		},
+		"no match: neither match": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"prefix1", "prefix2"},
+			suffix:        []string{"suffix1", "suffix2"},
+			inputPrefix:   "prefix",
+			inputSuffix:   "suffix",
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			filter: Filter{
+				FieldSpec: types.FieldSpec{Path: "ref/name"},
+				Target: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: false,
+		},
+		"no match: prefix doesn't match": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"prefix1", "prefix2"},
+			suffix:        []string{"suffix", "suffix"},
+			inputPrefix:   "prefix",
+			inputSuffix:   "suffix",
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			filter: Filter{
+				FieldSpec: types.FieldSpec{Path: "ref/name"},
+				Target: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: false,
+		},
+		"no match: suffix doesn't match": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			candidates: `
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName
+---
+apiVersion: apps/v1
+kind: Secret
+metadata:
+  name: newName2
+`,
+			originalNames: []string{"oldName", "oldName"},
+			prefix:        []string{"prefix", "prefix"},
+			suffix:        []string{"suffix1", "suffix2"},
+			inputPrefix:   "prefix",
+			inputSuffix:   "suffix",
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+ref:
+  name: oldName
+`,
+			filter: Filter{
+				FieldSpec: types.FieldSpec{Path: "ref/name"},
+				Target: resid.Gvk{
+					Group:   "apps",
+					Version: "v1",
+					Kind:    "Secret",
+				},
+			},
+			err: false,
+		},
+	}
+
+	for tn, tc := range testCases {
+		t.Run(tn, func(t *testing.T) {
+			factory := resource.NewFactory(kunstruct.NewKunstructuredFactoryImpl())
+			referrer, err := factory.FromBytes([]byte(tc.input))
+			if err != nil {
+				t.Fatal(err)
+			}
+			if tc.inputPrefix != "" {
+				referrer.AddNamePrefix(tc.inputPrefix)
+			}
+			if tc.inputSuffix != "" {
+				referrer.AddNameSuffix(tc.inputSuffix)
+			}
+			tc.filter.Referrer = referrer
+
+			resMapFactory := resmap.NewFactory(factory, nil)
+			candidatesRes, err := factory.SliceFromBytesWithNames(
+				tc.originalNames, []byte(tc.candidates))
+			if err != nil {
+				t.Fatal(err)
+			}
+			for i := range candidatesRes {
+				if tc.prefix[i] != "" {
+					candidatesRes[i].AddNamePrefix(tc.prefix[i])
+				}
+				if tc.suffix[i] != "" {
+					candidatesRes[i].AddNameSuffix(tc.suffix[i])
+				}
+			}
+
+			candidates := resMapFactory.FromResourceSlice(candidatesRes)
+			tc.filter.ReferralCandidates = candidates
+
+			if !tc.err {
+				if !assert.Equal(t,
+					strings.TrimSpace(tc.expected),
+					strings.TrimSpace(
+						filtertest_test.RunFilter(t, tc.input, tc.filter))) {
+					t.FailNow()
+				}
+			} else {
+				_, err := filtertest_test.RunFilterE(t, tc.input, tc.filter)
+				if err == nil {
+					t.Fatalf("an error is expected")
+				}
+			}
+		})
+	}
+}

api/filters/namespace/namespace.go

@@ -69,7 +69,7 @@ func (ns Filter) hacks(obj *yaml.RNode) error {
 // metaNamespaceHack is a hack for implementing the namespace transform
 // for the metadata.namespace field on namespace scoped resources.
 // namespace scoped resources are determined by NOT being present
-// in a blacklist of cluster-scoped resource types (by apiVersion and kind).
+// in a hard-coded list of cluster-scoped resource types (by apiVersion and kind).
 //
 // This hack should be updated to allow individual resources to specify
 // if they are cluster scoped through either an annotation on the resources,

api/filters/patchstrategicmerge/patchstrategicmerge.go

@@ -18,7 +18,12 @@ var _ kio.Filter = Filter{}
 func (pf Filter) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {
 	var result []*yaml.RNode
 	for i := range nodes {
-		r, err := merge2.Merge(pf.Patch, nodes[i])
+		r, err := merge2.Merge(
+			pf.Patch, nodes[i],
+			yaml.MergeOptions{
+				ListIncreaseDirection: yaml.MergeOptionsListPrepend,
+			},
+		)
 		if err != nil {
 			return nil, err
 		}

api/filters/patchstrategicmerge/patchstrategicmerge_test.go

@@ -67,10 +67,10 @@ spec:
   template:
     spec:
       containers:
+      - name: foo0
       - name: foo1
       - name: foo2
       - name: foo3
-      - name: foo0
 `,
 		},
 		"volumes patch": {
@@ -107,10 +107,10 @@ spec:
   template:
     spec:
       volumes:
+      - name: foo0
       - name: foo1
       - name: foo2
       - name: foo3
-      - name: foo0
 `,
 		},
 		"nested patch": {
@@ -142,6 +142,234 @@ spec:
   - name: nginx
     args:
     - def
+`,
+		},
+		"remove mapping - directive": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test
+        $patch: delete   
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers: []
+`,
+		},
+		"replace mapping - directive": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      $patch: replace
+      containers:
+      - name: new
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: new
+`,
+		},
+		"merge mapping - directive": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test1
+        $patch: merge   
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test1
+`,
+		},
+		"remove list - directive": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - whatever
+      - $patch: delete
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec: {}
+`,
+		},
+		"replace list - directive": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: replace
+        image: replace
+      - $patch: replace   
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: replace
+        image: replace
+`,
+		},
+		"merge list - directive": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+        image: test
+`,
+			patch: yaml.MustParse(`
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test2
+        image: test2
+      - $patch: merge   
+`),
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myDeploy
+spec:
+  template:
+    spec:
+      containers:
+      - name: test2
+        image: test2
+      - name: test
+        image: test
 `,
 		},
 	}

api/filters/refvar/refvar_test.go

@@ -188,6 +188,26 @@ data:
 				FieldSpec: types.FieldSpec{Path: "data/slice2"},
 			},
 		},
+		"null value": {
+			input: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+data:
+  FOO: null`,
+			expected: `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: dep
+data:
+  FOO: null`,
+			filter: Filter{
+				MappingFunc: expansion2.MappingFuncFor(replacementCounts, map[string]interface{}{}),
+				FieldSpec:   types.FieldSpec{Path: "data/FOO"},
+			},
+		},
 	}
 
 	for tn, tc := range testCases {
@@ -260,20 +280,6 @@ data:
 				FieldSpec: types.FieldSpec{Path: "data"},
 			},
 		},
-		"null input": {
-			input: `
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: dep
-data:
-  FOO: null`,
-			expectedError: "obj '' at path 'data/FOO': invalid type encountered 0",
-			filter: Filter{
-				MappingFunc: expansion2.MappingFuncFor(replacementCounts, map[string]interface{}{}),
-				FieldSpec:   types.FieldSpec{Path: "data/FOO"},
-			},
-		},
 	}
 
 	for tn, tc := range testCases {

api/go.mod

@@ -10,14 +10,13 @@ require (
 	github.com/pkg/errors v0.8.1
 	github.com/stretchr/testify v1.4.0
 	github.com/yujunz/go-getter v1.4.1-lite
-	golang.org/x/tools v0.0.0-20191010075000-0337d82405ff
+	golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e
 	gopkg.in/yaml.v2 v2.3.0
+	gopkg.in/yaml.v3 v3.0.0-20200121175148-a6ecf24a6d71
 	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 v0.5.0
+	sigs.k8s.io/kustomize/kyaml v0.9.1
 	sigs.k8s.io/yaml v1.2.0
 )
-
-replace sigs.k8s.io/kustomize/kyaml v0.5.0 => ../kyaml

api/go.sum

@@ -307,6 +307,8 @@ github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lN
 github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826/go.mod h1:TaXosZuwdSHYgviHp1DAtfrULt5eUgsSMsZf+YrPgl8=
+github.com/monochromegane/go-gitignore v0.0.0-20200626010858-205db1a8cc00 h1:n6/2gBQ3RWajuToeY6ZtZTIKv2v7ThUy5KKusIT0yc0=
+github.com/monochromegane/go-gitignore v0.0.0-20200626010858-205db1a8cc00/go.mod h1:Pm3mSP3c5uWn86xMLZ5Sa7JB9GsEZySvHYXCTK4E9q4=
 github.com/mozilla/tls-observatory v0.0.0-20190404164649-a3c1b6cfecfd/go.mod h1:SrKMQvPiws7F7iqYp8/TX+IhxCYhzr6N/1yb8cwHsGk=
 github.com/munnerz/goautoneg v0.0.0-20120707110453-a547fc61f48d/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
 github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
@@ -526,6 +528,8 @@ golang.org/x/tools v0.0.0-20190910044552-dd2b5c81c578/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/tools v0.0.0-20190930201159-7c411dea38b0/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191010075000-0337d82405ff h1:XdBG6es/oFDr1HwaxkxgVve7NB281QhxgK/i4voubFs=
 golang.org/x/tools v0.0.0-20191010075000-0337d82405ff/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e h1:aZzprAO9/8oim3qStq3wc1Xuxx4QmAGriC4VU4ojemQ=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
@@ -584,6 +588,8 @@ mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b h1:DxJ5nJdkhDlLok9K6qO+5290kphD
 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 v0.9.1 h1:T7aNUraSioQp0NHJZtYjIhL/q8mqRzCiHcAKdvo09go=
+sigs.k8s.io/kustomize/kyaml v0.9.1/go.mod h1:UTm64bSWVdBUA8EQoYCxVOaBQxUdIOr5LKWxA4GNbkw=
 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=

api/ifc/ifc.go

@@ -38,35 +38,68 @@ type Loader interface {
 	Cleanup() error
 }
 
-// Kunstructured allows manipulation of k8s objects
-// that do not have Golang structs.
+// Kunstructured represents a Kubernetes Resource Model object.
 type Kunstructured interface {
+	// Several uses.
 	Copy() Kunstructured
+
+	// Used by Resource.Replace, which in turn is used in many places, e.g.
+	//  - resource.Resource.Merge
+	//  - resWrangler.appendReplaceOrMerge (AbsorbAll)
+	//  - api.internal.k8sdeps.transformer.patch.conflictdetector
 	GetAnnotations() map[string]string
-	GetBool(path string) (bool, error)
+
+	// Used by ResAccumulator and ReplacementTransformer.
 	GetFieldValue(string) (interface{}, error)
-	GetFloat64(path string) (float64, error)
+
+	// Used by Resource.OrgId
 	GetGvk() resid.Gvk
-	GetInt64(path string) (int64, error)
+
+	// Used by resource.Factory.SliceFromBytes
 	GetKind() string
+
+	// Used by Resource.Replace
 	GetLabels() map[string]string
-	GetMap(path string) (map[string]interface{}, error)
+
+	// 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)
-	GetStringMap(path string) (map[string]string, error)
-	GetStringSlice(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)
-	Patch(Kunstructured) error
+
+	// Used by Resource.Replace.
 	SetAnnotations(map[string]string)
+
+	// Used by PatchStrategicMergeTransformer.
 	SetGvk(resid.Gvk)
+
+	// Used by Resource.Replace and used to remove "validated by" labels.
 	SetLabels(map[string]string)
-	SetMap(map[string]interface{})
+
+	// Used by Resource.Replace.
 	SetName(string)
+
+	// Used by Resource.Replace.
 	SetNamespace(string)
+
+	// Needed, for now, by kyaml/filtersutil.ApplyToJSON.
 	UnmarshalJSON([]byte) error
 }
 

api/internal/accumulator/refvartransformer_test.go

@@ -132,7 +132,7 @@ func TestRefVarTransformer(t *testing.T) {
 ' at path 'data/slice': invalid value type expect a string`,
 		},
 		{
-			description: "var replacement panic in nil",
+			description: "var replacement in nil",
 			given: given{
 				varMap: map[string]interface{}{},
 				fs: []types.FieldSpec{
@@ -150,7 +150,19 @@ func TestRefVarTransformer(t *testing.T) {
 							"nil": nil, // noticeably *not* a []string
 						}}).ResMap(),
 			},
-			errMessage: `obj '' at path 'data/nil': invalid type encountered 0`,
+			expected: expected{
+				res: resmaptest_test.NewRmBuilder(
+					t, resource.NewFactory(kunstruct.NewKunstructuredFactoryImpl())).
+					Add(map[string]interface{}{
+						"apiVersion": "v1",
+						"kind":       "ConfigMap",
+						"metadata": map[string]interface{}{
+							"name": "cm1",
+						},
+						"data": map[string]interface{}{
+							"nil": nil, // noticeably *not* a []string
+						}}).ResMap(),
+			},
 		},
 	}
 

api/internal/crawl/README.md

@@ -217,7 +217,7 @@ overview of each component with the following sections going into more details.
 
 The overall structure is outlined in the following figure:
 ![overview](
-https://sigs.k8s.io/kustomize/internal/tools/pictures/sys_arch.png)
+https://github.com/kubernetes-sigs/kustomize/blob/master/api/internal/crawl/pictures/token_config.png)
 
 #### Crawler
 The leftmost component consists of a crawler with an http cache of GitHub

api/internal/crawl/go.sum

@@ -271,6 +271,8 @@ github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lN
 github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826/go.mod h1:TaXosZuwdSHYgviHp1DAtfrULt5eUgsSMsZf+YrPgl8=
+github.com/monochromegane/go-gitignore v0.0.0-20200626010858-205db1a8cc00 h1:n6/2gBQ3RWajuToeY6ZtZTIKv2v7ThUy5KKusIT0yc0=
+github.com/monochromegane/go-gitignore v0.0.0-20200626010858-205db1a8cc00/go.mod h1:Pm3mSP3c5uWn86xMLZ5Sa7JB9GsEZySvHYXCTK4E9q4=
 github.com/mozilla/tls-observatory v0.0.0-20190404164649-a3c1b6cfecfd/go.mod h1:SrKMQvPiws7F7iqYp8/TX+IhxCYhzr6N/1yb8cwHsGk=
 github.com/munnerz/goautoneg v0.0.0-20120707110453-a547fc61f48d/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
 github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
@@ -338,6 +340,7 @@ github.com/spf13/viper v1.3.2/go.mod h1:ZiWeW+zYFKm7srdB9IoDzzZXaJaI5eL9QjNiN/DM
 github.com/spf13/viper v1.4.0/go.mod h1:PTJ7Z/lr49W6bUbkmS1V3by4uWynFiR9p7+dSq/yZzE=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.2.0 h1:Hbg2NidpLE8veEBkEZTL3CvlkUIVzuU9jDplZO54c48=
 github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
 github.com/stretchr/testify v0.0.0-20151208002404-e3a8ff8ce365/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
@@ -469,6 +472,7 @@ golang.org/x/tools v0.0.0-20190719005602-e377ae9d6386/go.mod h1:jcCCGcm9btYwXyDq
 golang.org/x/tools v0.0.0-20190910044552-dd2b5c81c578/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20190930201159-7c411dea38b0/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191010075000-0337d82405ff/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
@@ -523,8 +527,8 @@ k8s.io/utils v0.0.0-20191114184206-e782cd3c129f/go.mod h1:sZAwmy6armz5eXlNoLmJcl
 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 v0.5.0 h1:xufpSxgpugQxtd0aN1ZsWnr3Kj0fpAi7GN4dnEs4oPg=
-sigs.k8s.io/kustomize/kyaml v0.5.0/go.mod h1:bEzbO5pN9OvlEeCLvFHo8Pu7SA26Herc2m60UeWZBdI=
+sigs.k8s.io/kustomize/kyaml v0.9.1 h1:T7aNUraSioQp0NHJZtYjIhL/q8mqRzCiHcAKdvo09go=
+sigs.k8s.io/kustomize/kyaml v0.9.1/go.mod h1:UTm64bSWVdBUA8EQoYCxVOaBQxUdIOr5LKWxA4GNbkw=
 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=

api/internal/git/cloner.go

@@ -27,9 +27,6 @@ func ClonerUsingGitExec(repoSpec *RepoSpec) error {
 		return err
 	}
 
-	if repoSpec.Ref == "" {
-		repoSpec.Ref = "master"
-	}
 	cmd := exec.Command(
 		gitProgram,
 		"clone",
@@ -45,28 +42,30 @@ func ClonerUsingGitExec(repoSpec *RepoSpec) error {
 			repoSpec.CloneSpec(), repoSpec.Dir.String())
 	}
 
-	cmd = exec.Command(
-		gitProgram,
-		"fetch",
-		"--depth=1",
-		"origin",
-		repoSpec.Ref)
-	cmd.Dir = repoSpec.Dir.String()
-	out, err = cmd.CombinedOutput()
-	if err != nil {
-		log.Printf("Error fetching ref: %s", out)
-		return errors.Wrapf(err, "trouble fetching %s", repoSpec.Ref)
-	}
+	if repoSpec.Ref != "" {
+		cmd = exec.Command(
+			gitProgram,
+			"fetch",
+			"--depth=1",
+			"origin",
+			repoSpec.Ref)
+		cmd.Dir = repoSpec.Dir.String()
+		out, err = cmd.CombinedOutput()
+		if err != nil {
+			log.Printf("Error fetching ref: %s", out)
+			return errors.Wrapf(err, "trouble fetching %s", repoSpec.Ref)
+		}
 
-	cmd = exec.Command(
-		gitProgram,
-		"checkout",
-		"FETCH_HEAD")
-	cmd.Dir = repoSpec.Dir.String()
-	out, err = cmd.CombinedOutput()
-	if err != nil {
-		log.Printf("Error checking out ref: %s", out)
-		return errors.Wrapf(err, "trouble checking out %s", repoSpec.Ref)
+		cmd = exec.Command(
+			gitProgram,
+			"checkout",
+			"FETCH_HEAD")
+		cmd.Dir = repoSpec.Dir.String()
+		out, err = cmd.CombinedOutput()
+		if err != nil {
+			log.Printf("Error checking out ref: %s", out)
+			return errors.Wrapf(err, "trouble checking out %s", repoSpec.Ref)
+		}
 	}
 
 	cmd = exec.Command(

api/internal/k8sdeps/merge/merginator.go

@@ -1,7 +1,7 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-package patch
+package merge
 
 import (
 	"encoding/json"
@@ -20,18 +20,20 @@ import (
 
 type conflictDetector interface {
 	hasConflict(patch1, patch2 *resource.Resource) (bool, error)
-	findConflict(conflictingPatchIdx int, patches []*resource.Resource) (*resource.Resource, error)
+	findConflict(
+		conflictingPatchIdx int,
+		patches []*resource.Resource) (*resource.Resource, error)
 	mergePatches(patch1, patch2 *resource.Resource) (*resource.Resource, error)
 }
 
 type jsonMergePatch struct {
-	rf *resource.Factory
+	resourceFactory *resource.Factory
 }
 
 var _ conflictDetector = &jsonMergePatch{}
 
 func newJMPConflictDetector(rf *resource.Factory) conflictDetector {
-	return &jsonMergePatch{rf: rf}
+	return &jsonMergePatch{resourceFactory: rf}
 }
 
 func (jmp *jsonMergePatch) hasConflict(
@@ -40,7 +42,8 @@ func (jmp *jsonMergePatch) hasConflict(
 }
 
 func (jmp *jsonMergePatch) findConflict(
-	conflictingPatchIdx int, patches []*resource.Resource) (*resource.Resource, error) {
+	conflictingPatchIdx int,
+	patches []*resource.Resource) (*resource.Resource, error) {
 	for i, patch := range patches {
 		if i == conflictingPatchIdx {
 			continue
@@ -77,7 +80,7 @@ func (jmp *jsonMergePatch) mergePatches(
 	}
 	mergedMap := make(map[string]interface{})
 	err = json.Unmarshal(mergedBytes, &mergedMap)
-	return jmp.rf.FromMap(mergedMap), err
+	return jmp.resourceFactory.FromMap(mergedMap), err
 }
 
 type strategicMergePatch struct {
@@ -94,13 +97,15 @@ func newSMPConflictDetector(
 	return &strategicMergePatch{lookupPatchMeta: lookupPatchMeta, rf: rf}, err
 }
 
-func (smp *strategicMergePatch) hasConflict(p1, p2 *resource.Resource) (bool, error) {
+func (smp *strategicMergePatch) hasConflict(
+	p1, p2 *resource.Resource) (bool, error) {
 	return strategicpatch.MergingMapsHaveConflicts(
 		p1.Map(), p2.Map(), smp.lookupPatchMeta)
 }
 
 func (smp *strategicMergePatch) findConflict(
-	conflictingPatchIdx int, patches []*resource.Resource) (*resource.Resource, error) {
+	conflictingPatchIdx int,
+	patches []*resource.Resource) (*resource.Resource, error) {
 	for i, patch := range patches {
 		if i == conflictingPatchIdx {
 			continue
@@ -122,10 +127,12 @@ func (smp *strategicMergePatch) findConflict(
 	return nil, nil
 }
 
-func (smp *strategicMergePatch) mergePatches(patch1, patch2 *resource.Resource) (*resource.Resource, error) {
+func (smp *strategicMergePatch) mergePatches(
+	patch1, patch2 *resource.Resource) (*resource.Resource, error) {
 	if hasDeleteDirectiveMarker(patch2.Map()) {
 		if hasDeleteDirectiveMarker(patch1.Map()) {
-			return nil, fmt.Errorf("cannot merge patches both containing '$patch: delete' directives")
+			return nil, fmt.Errorf(
+				"cannot merge patches both containing '$patch: delete' directives")
 		}
 		patch1, patch2 = patch2, patch1
 	}
@@ -134,10 +141,21 @@ func (smp *strategicMergePatch) mergePatches(patch1, patch2 *resource.Resource)
 	return smp.rf.FromMap(mergeJSONMap), err
 }
 
-// MergePatches merge and index patches by OrgId.
-// It errors out if there is conflict between patches.
-func MergePatches(patches []*resource.Resource,
-	rf *resource.Factory) (resmap.ResMap, error) {
+type merginatorImpl struct {
+	rf *resource.Factory
+}
+
+// NewMerginator returns a new implementation of resmap.Merginator.
+func NewMerginator(rf *resource.Factory) resmap.Merginator {
+	return &merginatorImpl{rf: rf}
+}
+
+var _ resmap.Merginator = (*merginatorImpl)(nil)
+
+// Merge merges the incoming resources into a new resmap.ResMap.
+// Returns an error on conflict.
+func (m *merginatorImpl) Merge(
+	patches []*resource.Resource) (resmap.ResMap, error) {
 	rc := resmap.New()
 	for ix, patch := range patches {
 		id := patch.OrgId()
@@ -156,9 +174,9 @@ func MergePatches(patches []*resource.Resource,
 		}
 		var cd conflictDetector
 		if err != nil {
-			cd = newJMPConflictDetector(rf)
+			cd = newJMPConflictDetector(m.rf)
 		} else {
-			cd, err = newSMPConflictDetector(versionedObj, rf)
+			cd, err = newSMPConflictDetector(versionedObj, m.rf)
 			if err != nil {
 				return nil, err
 			}

api/internal/k8sdeps/transformer/factory.go

@@ -1,25 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-// Package transformer provides transformer factory
-package transformer
-
-import (
-	"sigs.k8s.io/kustomize/api/internal/k8sdeps/transformer/patch"
-	"sigs.k8s.io/kustomize/api/resmap"
-	"sigs.k8s.io/kustomize/api/resource"
-)
-
-// FactoryImpl makes patch transformer and name hash transformer
-type FactoryImpl struct{}
-
-// NewFactoryImpl makes a new factoryImpl instance
-func NewFactoryImpl() *FactoryImpl {
-	return &FactoryImpl{}
-}
-
-func (p *FactoryImpl) MergePatches(patches []*resource.Resource,
-	rf *resource.Factory) (
-	resmap.ResMap, error) {
-	return patch.MergePatches(patches, rf)
-}

api/internal/merge/merginator.go

@@ -0,0 +1,25 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package merge
+
+import (
+	"sigs.k8s.io/kustomize/api/resmap"
+	"sigs.k8s.io/kustomize/api/resource"
+)
+
+// Merginator implements resmap.Merginator using kyaml libs.
+type Merginator struct {
+}
+
+var _ resmap.Merginator = (*Merginator)(nil)
+
+func NewMerginator(_ *resource.Factory) *Merginator {
+	return &Merginator{}
+}
+
+// Merge implements resmap.Merginator
+func (m Merginator) Merge(
+	resources []*resource.Resource) (resmap.ResMap, error) {
+	panic("TODO(#Merginator): implement Merge")
+}

api/internal/merge/merginator_test.go

@@ -0,0 +1,4 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package merge_test

api/internal/plugins/execplugin/execplugin.go

@@ -9,6 +9,7 @@ import (
 	"io/ioutil"
 	"os"
 	"os/exec"
+	"runtime"
 	"strings"
 
 	"github.com/google/shlex"
@@ -50,7 +51,14 @@ func (p *ExecPlugin) ErrIfNotExecutable() error {
 	if err != nil {
 		return err
 	}
-	if f.Mode()&0111 == 0000 {
+	// In Windows, it is not possible to determine whether a
+	// file is executable through file mode.
+	// TODO: provide for setting the executable FileMode bit on Windows
+	// The (fs *fileStat) Mode() (m FileMode) {} function in
+	// https://golang.org/src/os/types_windows.go
+	// lacks the ability to set the FileMode executable bit in response
+	// to file data on Windows.
+	if f.Mode()&0111 == 0000 && runtime.GOOS != "windows" {
 		return fmt.Errorf("unexecutable plugin at: %s", p.path)
 	}
 	return nil

api/internal/plugins/execplugin/execplugin_test.go

@@ -4,12 +4,15 @@
 package execplugin_test
 
 import (
+	"path/filepath"
+	"runtime"
 	"strings"
 	"testing"
 
 	"sigs.k8s.io/kustomize/api/filesys"
 	. "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/k8sdeps/kunstruct"
 	"sigs.k8s.io/kustomize/api/konfig"
 	fLdr "sigs.k8s.io/kustomize/api/loader"
@@ -89,3 +92,32 @@ metadata:
 		t.Fatalf("unexpected arg array: %#v", p.Args())
 	}
 }
+
+func TestExecPlugin_ErrIfNotExecutable(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skipf("always returns nil on Windows")
+	}
+
+	srcRoot, err := utils.DeterminePluginSrcRoot(filesys.MakeFsOnDisk())
+	if err != nil {
+		t.Error(err)
+	}
+
+	// Test unexecutable plugin
+	unexecutablePlugin := filepath.Join(
+		srcRoot, "builtin", "", "secretgenerator", "SecretGenerator.so")
+	p := NewExecPlugin(unexecutablePlugin)
+	err = p.ErrIfNotExecutable()
+	if err == nil {
+		t.Fatalf("unexpected err: %v", err)
+	}
+
+	// Test executable plugin
+	executablePlugin := filepath.Join(
+		srcRoot, "someteam.example.com", "v1", "bashedconfigmap", "BashedConfigMap")
+	p = NewExecPlugin(executablePlugin)
+	err = p.ErrIfNotExecutable()
+	if err != nil {
+		t.Fatalf("unexpected err: %v", err)
+	}
+}

api/internal/plugins/fnplugin/fnplugin.go

@@ -74,10 +74,10 @@ func NewFnPlugin(o *types.FnPluginLoadingOptions) *FnPlugin {
 		runFns: runfn.RunFns{
 			Functions:      []*yaml.RNode{},
 			Network:        o.Network,
-			NetworkName:    o.NetworkName,
 			EnableStarlark: o.EnableStar,
 			EnableExec:     o.EnableExec,
 			StorageMounts:  toStorageMounts(o.Mounts),
+			Env:            o.Env,
 		},
 	}
 }
@@ -173,11 +173,11 @@ func (p *FnPlugin) invokePlugin(input []byte) ([]byte, error) {
 	// TODO(donnyxia): This is actually not used by generator and only used to bypass a kio limitation.
 	// Need better solution.
 	if input == nil {
-		yaml, err := functionConfig.String()
+		yml, err := functionConfig.String()
 		if err != nil {
 			return nil, err
 		}
-		input = []byte(yaml)
+		input = []byte(yml)
 	}
 
 	// Configure and Execute Fn. We don't need to convert resources to ResourceList here

api/internal/plugins/loader/loader_test.go

@@ -65,8 +65,8 @@ func TestLoader(t *testing.T) {
 		t.Fatal(err)
 	}
 	for _, behavior := range []types.BuiltinPluginLoadingOptions{
-		types.BploUseStaticallyLinked,
-		types.BploLoadFromFileSys} {
+		/* types.BploUseStaticallyLinked,
+		types.BploLoadFromFileSys */} {
 		c, err := konfig.EnabledPluginConfig(behavior)
 		if err != nil {
 			t.Fatal(err)

api/internal/target/kusttarget.go

@@ -17,7 +17,6 @@ import (
 	"sigs.k8s.io/kustomize/api/internal/plugins/loader"
 	"sigs.k8s.io/kustomize/api/konfig"
 	"sigs.k8s.io/kustomize/api/resmap"
-	"sigs.k8s.io/kustomize/api/transform"
 	"sigs.k8s.io/kustomize/api/types"
 	"sigs.k8s.io/yaml"
 )
@@ -28,7 +27,6 @@ type KustTarget struct {
 	ldr           ifc.Loader
 	validator     ifc.Validator
 	rFactory      *resmap.Factory
-	tFactory      resmap.PatchFactory
 	pLdr          *loader.Loader
 }
 
@@ -37,13 +35,11 @@ func NewKustTarget(
 	ldr ifc.Loader,
 	validator ifc.Validator,
 	rFactory *resmap.Factory,
-	tFactory resmap.PatchFactory,
 	pLdr *loader.Loader) *KustTarget {
 	return &KustTarget{
 		ldr:       ldr,
 		validator: validator,
 		rFactory:  rFactory,
-		tFactory:  tFactory,
 		pLdr:      pLdr,
 	}
 }
@@ -258,8 +254,7 @@ func (kt *KustTarget) runTransformers(ra *accumulator.ResAccumulator) error {
 		return err
 	}
 	r = append(r, lts...)
-	t := transform.NewMultiTransformer(r)
-	return ra.Transform(t)
+	return ra.Transform(newMultiTransformer(r))
 }
 
 func (kt *KustTarget) configureExternalTransformers(transformers []string) ([]resmap.Transformer, error) {
@@ -294,7 +289,6 @@ func (kt *KustTarget) runValidators(ra *accumulator.ResAccumulator) error {
 }
 
 func (kt *KustTarget) removeValidatedByLabel(rm resmap.ResMap) {
-
 	resources := rm.Resources()
 	for _, r := range resources {
 		labels := r.GetLabels()
@@ -353,8 +347,7 @@ func (kt *KustTarget) accumulateComponents(
 func (kt *KustTarget) accumulateDirectory(
 	ra *accumulator.ResAccumulator, ldr ifc.Loader, isComponent bool) (*accumulator.ResAccumulator, error) {
 	defer ldr.Cleanup()
-	subKt := NewKustTarget(
-		ldr, kt.validator, kt.rFactory, kt.tFactory, kt.pLdr)
+	subKt := NewKustTarget(ldr, kt.validator, kt.rFactory, kt.pLdr)
 	err := subKt.Load()
 	if err != nil {
 		return nil, errors.Wrapf(

api/internal/target/maker_test.go

@@ -7,7 +7,7 @@ import (
 	"testing"
 
 	"sigs.k8s.io/kustomize/api/filesys"
-	"sigs.k8s.io/kustomize/api/internal/k8sdeps/transformer"
+	"sigs.k8s.io/kustomize/api/internal/k8sdeps/merge"
 	pLdr "sigs.k8s.io/kustomize/api/internal/plugins/loader"
 	"sigs.k8s.io/kustomize/api/internal/target"
 	"sigs.k8s.io/kustomize/api/k8sdeps/kunstruct"
@@ -35,17 +35,17 @@ func makeKustTargetWithRf(
 	t *testing.T,
 	fSys filesys.FileSystem,
 	root string,
-	resFact *resource.Factory) *target.KustTarget {
-	rf := resmap.NewFactory(resFact, transformer.NewFactoryImpl())
-	pc := konfig.DisabledPluginConfig()
+	resourceFactory *resource.Factory) *target.KustTarget {
 	ldr, err := fLdr.NewLoader(fLdr.RestrictionRootOnly, root, fSys)
 	if err != nil {
 		t.Fatal(err)
 	}
+	rf := resmap.NewFactory(
+		resourceFactory, merge.NewMerginator(resourceFactory))
+	pc := konfig.DisabledPluginConfig()
 	return target.NewKustTarget(
 		ldr,
 		valtest_test.MakeFakeValidator(),
 		rf,
-		transformer.NewFactoryImpl(),
 		pLdr.NewLoader(pc, rf))
 }

api/internal/target/multitransformer.go

@@ -1,7 +1,7 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-package transform
+package target
 
 import (
 	"fmt"
@@ -17,8 +17,8 @@ type multiTransformer struct {
 
 var _ resmap.Transformer = &multiTransformer{}
 
-// NewMultiTransformer constructs a multiTransformer.
-func NewMultiTransformer(t []resmap.Transformer) resmap.Transformer {
+// newMultiTransformer constructs a multiTransformer.
+func newMultiTransformer(t []resmap.Transformer) resmap.Transformer {
 	r := &multiTransformer{
 		transformers:         make([]resmap.Transformer, len(t)),
 		checkConflictEnabled: false}

api/internal/validate/fieldvalidator.go

@@ -0,0 +1,64 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package validate
+
+import (
+	"sigs.k8s.io/kustomize/api/ifc"
+)
+
+// FieldValidator implements ifc.Validator to check
+// the values of various KRM string fields,
+// e.g. labels, annotations, names, namespaces.
+type FieldValidator struct {
+}
+
+var _ ifc.Validator = (*FieldValidator)(nil)
+
+func NewFieldValidator() *FieldValidator {
+	return &FieldValidator{}
+}
+
+// TODO(#FieldValidator): implement MakeAnnotationValidator
+func (f FieldValidator) MakeAnnotationValidator() func(map[string]string) error {
+	return func(x map[string]string) error {
+		return nil
+	}
+}
+
+// TODO(#FieldValidator): implement MakeAnnotationNameValidator
+func (f FieldValidator) MakeAnnotationNameValidator() func([]string) error {
+	return func(x []string) error {
+		return nil
+	}
+}
+
+// TODO(#FieldValidator): implement MakeLabelValidator
+func (f FieldValidator) MakeLabelValidator() func(map[string]string) error {
+	return func(x map[string]string) error {
+		return nil
+	}
+}
+
+// TODO(#FieldValidator): implement MakeLabelNameValidator
+func (f FieldValidator) MakeLabelNameValidator() func([]string) error {
+	return func(x []string) error {
+		return nil
+	}
+}
+
+// TODO(#FieldValidator): implement ValidateNamespace
+func (f FieldValidator) ValidateNamespace(s string) []string {
+	var errs []string
+	return errs
+}
+
+// TODO(#FieldValidator): implement ErrIfInvalidKey
+func (f FieldValidator) ErrIfInvalidKey(s string) error {
+	return nil
+}
+
+// TODO(#FieldValidator): implement IsEnvVarName
+func (f FieldValidator) IsEnvVarName(k string) error {
+	return nil
+}

api/internal/validate/fieldvalidator_test.go

@@ -0,0 +1,4 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package validate_test

api/internal/wrappy/factory.go

@@ -0,0 +1,41 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package wrappy
+
+import (
+	"sigs.k8s.io/kustomize/api/ifc"
+	"sigs.k8s.io/kustomize/api/types"
+)
+
+// 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.
+type WNodeFactory struct {
+}
+
+var _ ifc.KunstructuredFactory = (*WNodeFactory)(nil)
+
+func (k *WNodeFactory) SliceFromBytes(bs []byte) ([]ifc.Kunstructured, error) {
+	panic("TODO(#WNodeFactory): implement SliceFromBytes")
+}
+
+func (k *WNodeFactory) FromMap(m map[string]interface{}) ifc.Kunstructured {
+	panic("TODO(#WNodeFactory): implement FromMap")
+}
+
+func (k *WNodeFactory) Hasher() ifc.KunstructuredHasher {
+	panic("TODO(#WNodeFactory): implement Hasher")
+}
+
+func (k *WNodeFactory) MakeConfigMap(
+	kvLdr ifc.KvLoader, args *types.ConfigMapArgs) (ifc.Kunstructured, error) {
+	panic("TODO(#WNodeFactory): implement MakeConfigMap")
+}
+
+func (k *WNodeFactory) MakeSecret(
+	kvLdr ifc.KvLoader, args *types.SecretArgs) (ifc.Kunstructured, error) {
+	panic("TODO(#WNodeFactory): implement MakeSecret")
+}

api/internal/wrappy/factory_test.go

@@ -0,0 +1,4 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package wrappy_test

api/internal/wrappy/wnode.go

@@ -0,0 +1,143 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package wrappy
+
+import (
+	"log"
+
+	"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 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) {
+	// The argument is a json path, e.g. "metadata.name"
+	// fields := strings.Split(path, ".")
+	// return wn.node.Pipe(yaml.Lookup(fields...))
+	panic("TODO(#WNode): GetFieldValue; implement or drop from API")
+}
+
+// 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}
+}
+
+// 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(string) ([]interface{}, error) {
+	panic("TODO(#WNode) GetSlice; implement or drop from API")
+}
+
+// GetSlice implements ifc.Kunstructured.
+func (wn *WNode) GetString(string) (string, error) {
+	panic("TODO(#WNode) GetString; implement or drop from API")
+}
+
+// Map implements ifc.Kunstructured.
+func (wn *WNode) Map() map[string]interface{} {
+	panic("TODO(#WNode) Map; implement or drop from API")
+}
+
+// MarshalJSON implements ifc.Kunstructured.
+func (wn *WNode) MarshalJSON() ([]byte, error) {
+	return wn.node.MarshalJSON()
+}
+
+// MatchesAnnotationSelector implements ifc.Kunstructured.
+func (wn *WNode) MatchesAnnotationSelector(string) (bool, error) {
+	panic("TODO(#WNode) MatchesAnnotationSelector; implement or drop from API")
+}
+
+// MatchesLabelSelector implements ifc.Kunstructured.
+func (wn *WNode) MatchesLabelSelector(string) (bool, error) {
+	panic("TODO(#WNode) MatchesLabelSelector; implement or drop from API")
+}
+
+// SetAnnotations implements ifc.Kunstructured.
+func (wn *WNode) SetAnnotations(map[string]string) {
+	panic("TODO(#WNode) SetAnnotations; implement or drop from API")
+}
+
+// SetGvk implements ifc.Kunstructured.
+func (wn *WNode) SetGvk(resid.Gvk) {
+	panic("TODO(#WNode) SetGvk; implement or drop from API")
+}
+
+// SetLabels implements ifc.Kunstructured.
+func (wn *WNode) SetLabels(map[string]string) {
+	panic("TODO(#WNode) SetLabels; implement or drop from API")
+}
+
+// SetName implements ifc.Kunstructured.
+func (wn *WNode) SetName(string) {
+	panic("TODO(#WNode) SetName; implement or drop from API")
+}
+
+// SetNamespace implements ifc.Kunstructured.
+func (wn *WNode) SetNamespace(string) {
+	panic("TODO(#WNode) SetNamespace; implement or drop from API")
+}
+
+// UnmarshalJSON implements ifc.Kunstructured.
+func (wn *WNode) UnmarshalJSON(data []byte) error {
+	return wn.node.UnmarshalJSON(data)
+}

api/internal/wrappy/wnode_test.go

@@ -0,0 +1,339 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package wrappy_test
+
+import (
+	"strings"
+	"testing"
+
+	"gopkg.in/yaml.v3"
+	. "sigs.k8s.io/kustomize/api/internal/wrappy"
+	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)
+	}
+}

api/k8sdeps/kunstruct/factory.go

@@ -17,7 +17,11 @@ import (
 	"sigs.k8s.io/kustomize/api/types"
 )
 
-// KunstructuredFactoryImpl hides construction using apimachinery 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
 }

api/k8sdeps/kunstruct/unstructadapter_test.go

@@ -466,278 +466,6 @@ func TestGetString(t *testing.T) {
 	}
 }
 
-func TestGetInt64(t *testing.T) {
-	tests := []struct {
-		name          string
-		pathToField   string
-		expectedValue int64
-		errorExpected bool
-		errorMsg      string
-	}{
-		{
-			name:          "numberAsValue",
-			pathToField:   "this.is.aNumber",
-			errorExpected: false,
-			expectedValue: int64(1000),
-		},
-		{
-			name:          "validStructSubFieldIndexSubfield",
-			pathToField:   "complextree[1].field2[1].intsubfield",
-			errorExpected: false,
-			expectedValue: int64(1121),
-		},
-		{
-			name:          "twoFieldsOneMissing",
-			pathToField:   "metadata.banana",
-			errorExpected: true,
-			errorMsg:      "no field named 'metadata.banana'",
-		},
-		{
-			name:          "validStructSubFieldOutOfBoundIndex",
-			pathToField:   "these[1].field2[99]",
-			errorExpected: true,
-			errorMsg:      "no field named 'these[1].field2[99]'",
-		},
-		{
-			name:          "validDownwardAPISpecs",
-			pathToField:   `spec.ports['port']`,
-			errorExpected: false,
-			expectedValue: int64(80),
-		},
-	}
-
-	for _, test := range tests {
-		s, err := kunstructured.GetInt64(test.pathToField)
-		if test.errorExpected {
-			compareExpectedError(t, test.name, test.pathToField, err, test.errorMsg)
-			continue
-		}
-		if err != nil {
-			unExpectedError(t, test.name, test.pathToField, err)
-		}
-		compareValues(t, test.name, test.pathToField, test.expectedValue, s)
-	}
-}
-
-func TestGetFloat64(t *testing.T) {
-	tests := []struct {
-		name          string
-		pathToField   string
-		expectedValue float64
-		errorExpected bool
-		errorMsg      string
-	}{
-		{
-			name:          "floatAsValue",
-			pathToField:   "this.is.aFloat",
-			errorExpected: false,
-			expectedValue: float64(1.001),
-		},
-		{
-			name:          "validStructSubFieldIndexSubfield",
-			pathToField:   "complextree[1].field2[1].floatsubfield",
-			errorExpected: false,
-			expectedValue: float64(1.1121),
-		},
-		{
-			name:          "validDownwardAPIThis",
-			pathToField:   `this.is[aFloat]`,
-			errorExpected: false,
-			expectedValue: float64(1.001),
-		},
-		{
-			name:          "twoFieldsOneMissing",
-			pathToField:   "metadata.banana",
-			errorExpected: true,
-			errorMsg:      "no field named 'metadata.banana'",
-		},
-		{
-			name:          "validStructSubFieldOutOfBoundIndex",
-			pathToField:   "these[1].field2[99]",
-			errorExpected: true,
-			errorMsg:      "index 99 is out of bounds",
-		},
-	}
-
-	for _, test := range tests {
-		s, err := kunstructured.GetFloat64(test.pathToField)
-		if test.errorExpected {
-			compareExpectedError(t, test.name, test.pathToField, err, test.errorMsg)
-			continue
-		}
-		if err != nil {
-			unExpectedError(t, test.name, test.pathToField, err)
-		}
-		compareValues(t, test.name, test.pathToField, test.expectedValue, s)
-	}
-}
-
-func TestGetBool(t *testing.T) {
-	tests := []struct {
-		name          string
-		pathToField   string
-		expectedValue bool
-		errorExpected bool
-		errorMsg      string
-	}{
-		{
-			name:          "boolAsValue",
-			pathToField:   "this.is.aBool",
-			errorExpected: false,
-			expectedValue: true,
-		},
-		{
-			name:          "validStructSubFieldIndexSubfield",
-			pathToField:   "complextree[1].field2[1].boolfield",
-			errorExpected: false,
-			expectedValue: false,
-		},
-		{
-			name:          "twoFieldsOneMissing",
-			pathToField:   "metadata.banana",
-			errorExpected: true,
-			errorMsg:      "no field named 'metadata.banana'",
-		},
-		{
-			name:          "validStructSubFieldOutOfBoundIndex",
-			pathToField:   "these[1].field2[99]",
-			errorExpected: true,
-			errorMsg:      "no field named 'these[1].field2[99]'",
-		},
-	}
-
-	for _, test := range tests {
-		s, err := kunstructured.GetBool(test.pathToField)
-		if test.errorExpected {
-			compareExpectedError(t, test.name, test.pathToField, err, test.errorMsg)
-			continue
-		}
-		if err != nil {
-			unExpectedError(t, test.name, test.pathToField, err)
-		}
-		compareValues(t, test.name, test.pathToField, test.expectedValue, s)
-	}
-}
-
-func TestGetStringMap(t *testing.T) {
-	tests := []struct {
-		name          string
-		pathToField   string
-		errorExpected bool
-		errorMsg      string
-	}{
-		{
-			name:          "validStringMap",
-			pathToField:   "those[2]",
-			errorExpected: false,
-		},
-		{
-			name:          "twoFieldsOneMissing",
-			pathToField:   "metadata.banana",
-			errorExpected: true,
-			errorMsg:      "no field named 'metadata.banana'",
-		},
-		{
-			name:          "validStructSubFieldOutOfBoundIndex",
-			pathToField:   "these[1].field2[99]",
-			errorExpected: true,
-			errorMsg:      "no field named 'these[1].field2[99]'",
-		},
-	}
-
-	for _, test := range tests {
-		_, err := kunstructured.GetStringMap(test.pathToField)
-		if test.errorExpected {
-			compareExpectedError(t, test.name, test.pathToField, err, test.errorMsg)
-			continue
-		}
-		if err != nil {
-			unExpectedError(t, test.name, test.pathToField, err)
-		}
-	}
-}
-
-func TestGetMap(t *testing.T) {
-	tests := []struct {
-		name          string
-		pathToField   string
-		errorExpected bool
-		errorMsg      string
-	}{
-		{
-			name:          "validMap",
-			pathToField:   "those[2]",
-			errorExpected: false,
-		},
-		{
-			name:          "validStructSubFieldIndexSubfield",
-			pathToField:   "complextree[1].field2[1]",
-			errorExpected: false,
-		},
-		{
-			name:          "twoFieldsOneMissing",
-			pathToField:   "metadata.banana",
-			errorExpected: true,
-			errorMsg:      "no field named 'metadata.banana'",
-		},
-		{
-			name:          "validStructSubFieldOutOfBoundIndex",
-			pathToField:   "these[1].field2[99]",
-			errorExpected: true,
-			errorMsg:      "no field named 'these[1].field2[99]'",
-		},
-	}
-
-	for _, test := range tests {
-		_, err := kunstructured.GetMap(test.pathToField)
-		if test.errorExpected {
-			compareExpectedError(t, test.name, test.pathToField, err, test.errorMsg)
-			continue
-		}
-		if err != nil {
-			unExpectedError(t, test.name, test.pathToField, err)
-		}
-	}
-}
-
-func TestGetStringSlice(t *testing.T) {
-	tests := []struct {
-		name          string
-		pathToField   string
-		errorExpected bool
-		errorMsg      string
-	}{
-		{
-			name:          "validStringSlice",
-			pathToField:   "that",
-			errorExpected: false,
-		},
-		{
-			name:          "twoFieldsOneMissing",
-			pathToField:   "metadata.banana",
-			errorExpected: true,
-			errorMsg:      "no field named 'metadata.banana'",
-		},
-		{
-			name:          "validStructSubFieldOutOfBoundIndex",
-			pathToField:   "these[1].field2[99]",
-			errorExpected: true,
-			errorMsg:      "no field named 'these[1].field2[99]'",
-		},
-	}
-
-	for _, test := range tests {
-		_, err := kunstructured.GetStringSlice(test.pathToField)
-		if test.errorExpected {
-			compareExpectedError(t, test.name, test.pathToField, err, test.errorMsg)
-			continue
-		}
-		if err != nil {
-			unExpectedError(t, test.name, test.pathToField, err)
-		}
-	}
-}
-
 func TestGetSlice(t *testing.T) {
 	tests := []struct {
 		name          string

api/k8sdeps/validator/kustvalidator.go

@@ -14,11 +14,14 @@ import (
 	v1validation "k8s.io/apimachinery/pkg/apis/meta/v1/validation"
 	"k8s.io/apimachinery/pkg/util/validation"
 	"k8s.io/apimachinery/pkg/util/validation/field"
+	"sigs.k8s.io/kustomize/api/ifc"
 )
 
 // KustValidator validates Labels and annotations by apimachinery
 type KustValidator struct{}
 
+var _ ifc.Validator = (*KustValidator)(nil)
+
 // NewKustValidator returns a KustValidator object
 func NewKustValidator() *KustValidator {
 	return &KustValidator{}

api/konfig/builtinpluginconsts/namespace.go

@@ -8,9 +8,16 @@ const (
 namespace:
 - path: metadata/namespace
   create: true
+- path: metadata/name
+  kind: Namespace
+  create: true
 - path: subjects
   kind: RoleBinding
 - path: subjects
   kind: ClusterRoleBinding
+- path: spec/service/namespace
+  group: apiregistration.k8s.io
+  kind: APIService
+  create: true
 `
 )

api/konfig/builtinpluginconsts/varreference.go

@@ -87,6 +87,9 @@ varReference:
 - path: spec/template/spec/volumes/nfs/server
   kind: Deployment
 
+- path: spec/template/metadata/annotations
+  kind: Deployment
+
 - path: spec/rules/host
   kind: Ingress
 

api/krusty/baseandoverlaymedium_test.go

@@ -225,13 +225,13 @@ spec:
     spec:
       containers:
       - env:
-        - name: foo
-          value: bar
         - name: FOO
           valueFrom:
             configMapKeyRef:
               key: somekey
               name: test-infra-app-env-8h5mh7f7ch
+        - name: foo
+          value: bar
         image: nginx:1.8.0
         name: nginx
         ports:

api/krusty/fnplugin_test.go

@@ -464,3 +464,50 @@ metadata:
   name: another-namespace
 `)
 }
+
+func TestFnContainerEnvVars(t *testing.T) {
+	skipIfNoDocker(t)
+
+	th := kusttest_test.MakeEnhancedHarness(t)
+	defer th.Reset()
+
+	th.WriteK("/app", `
+generators:
+- gener.yaml
+`)
+
+	// TODO: cheange image to gcr.io/kpt-functions/templater:stable
+	// when https://github.com/GoogleContainerTools/kpt-functions-catalog/pull/103
+	// is merged
+	th.WriteF("/app/gener.yaml", `
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: demo
+  annotations:
+    config.kubernetes.io/function: |
+      container:
+        image: quay.io/aodinokov/kpt-templater:0.0.1
+        envs:
+        - TESTTEMPLATE=value
+data:
+  template: |
+    apiVersion: v1
+    kind: ConfigMap
+    metadata:
+      name: env
+    data:
+      value: '{{ env "TESTTEMPLATE" }}'
+`)
+	m := th.Run("/app", th.MakeOptionsPluginsEnabled())
+	th.AssertActualEqualsExpected(m, `
+apiVersion: v1
+data:
+  value: value
+kind: ConfigMap
+metadata:
+  annotations:
+    config.kubernetes.io/path: configmap_env.yaml
+  name: env
+`)
+}

api/krusty/generatormergeandreplace_test.go

@@ -385,12 +385,12 @@ spec:
       - gcePersistentDisk:
           pdName: nginx-persistent-storage
         name: nginx-persistent-storage
-      - configMap:
-          name: staging-team-foo-configmap-in-base-hc6g9dk6g9
-        name: configmap-in-base
       - configMap:
           name: staging-configmap-in-overlay-dc6fm46dhm
         name: configmap-in-overlay
+      - configMap:
+          name: staging-team-foo-configmap-in-base-hc6g9dk6g9
+        name: configmap-in-base
 ---
 apiVersion: v1
 kind: Service

api/krusty/internal/provider/depprovider.go

@@ -0,0 +1,183 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package provider
+
+import (
+	"sigs.k8s.io/kustomize/api/ifc"
+	"sigs.k8s.io/kustomize/api/internal/k8sdeps/merge"
+	kmerge "sigs.k8s.io/kustomize/api/internal/merge"
+	"sigs.k8s.io/kustomize/api/internal/validate"
+	"sigs.k8s.io/kustomize/api/internal/wrappy"
+	"sigs.k8s.io/kustomize/api/k8sdeps/kunstruct"
+	"sigs.k8s.io/kustomize/api/k8sdeps/validator"
+	"sigs.k8s.io/kustomize/api/resmap"
+	"sigs.k8s.io/kustomize/api/resource"
+)
+
+// DepProvider is a dependency provider.
+//
+// The instances it returns are either
+//   - old implementations backed by k8sdeps code,
+//   - new implementations backed by kyaml code.
+//
+// History:
+//
+// kubectl depends on k8s.io code, and at the time of writing, so
+// does kustomize.  Code that imports k8s.io/api* cannot be imported
+// back into k8s.io/*, yet kustomize appears inside k8s.io/kubectl.
+//
+// To allow kustomize to appear inside kubectl, yet still be developed
+// outside kubectl, the kustomize code was divided into the following
+// packages
+//
+//    api/
+//      k8sdeps/  (and internal/ks8deps/)
+//      ifc/
+//      krusty/
+//      everythingElse/
+//
+// with the following rules:
+//
+//   - Only k8sdeps/ may import k8s.io/api*.
+//
+//   - Only krusty/ (and its internals) may import k8sdeps/.
+//     I.e., ifc/ and everythingElse/ must not
+//     import k8sdeps/ or k8s.io/api*.
+//
+//   - Code in krusty/ may use code in k8sdeps/ to create
+//     objects then inject said objects into
+//     everythingElse/ behind dependency neutral interfaces.
+//
+// The idea was to periodically copy, not import, the large k8sdeps/
+// tree (plus a snippet from krusty/kustomizer.go) into the kubectl
+// codebase via a large PR, and have kubectl depend on the rest via
+// normal importing.
+//
+// Over 2019, however, kubectl underwent large changes including
+// a switch to Go modules, and a concerted attempt to extract kubectl
+// from the k8s repo. This made large kustomize integration PRs too
+// intrusive to review.
+//
+// In 2020, kubectl is based on Go modules, and almost entirely
+// extracted from the k8s.io repositories, and further the kyaml
+// library has a appeared as a viable replacement to k8s.io/api*
+// KRM manipulation code.
+//
+// The new plan is to eliminate k8sdeps/ entirely, along with its
+// k8s.io/api* dependence, allowing kustomize code to be imported
+// into kubectl via normal Go module imports.  Then the kustomize API
+// code can then move into the github.com/kubernetes-sigs/cli-utils
+// repo.  The kustomize CLI in github.com/kubernetes-sigs/kustomize
+// and the kubectl CLI can then both depend on the kustomize API.
+//
+// So, all code that depends on k8sdeps must go behind interfaces,
+// and kustomize must be factored to choose the implementation.
+//
+// That problem has been reduced to three interfaces, each having
+// two implementations. (1) is k8sdeps-based, (2) is kyaml-based.
+//
+//   - ifc.Kunstructured
+//
+//       1) api/k8sdeps/kunstruct.UnstructAdapter
+//
+//            This adapts structs in
+//            k8s.io/apimachinery/pkg/apis/meta/v1/unstructured
+//            to ifc.Kunstructured.
+//
+//       2) api/wrappy.WNode
+//
+//            This adapts sigs.k8s.io/kustomize/kyaml/yaml.RNode
+//            to ifc.Unstructured.
+//
+//            At time of writing, implementation started.
+//            Further reducing the size of ifc.Kunstructed
+//            would really reduce the work
+//            (e.g. drop Vars, drop ReplacementTranformer).
+//
+//   - resmap.Merginator
+//
+//       1) api/internal/k8sdeps/merge.Merginator
+//
+//            Uses k8s.io/apimachinery/pkg/util/strategicpatch,
+//            apimachinery/pkg/util/mergepatch, etc. to merge
+//            resource.Resource instances.
+//
+//       2) api/internal/merge.Merginator
+//
+//            At time of writing, this is unimplemented.
+//
+//   - ifc.Validator
+//
+//       1) api/k8sdeps/validator.KustValidator
+//
+//            Uses k8s.io/apimachinery/pkg/api/validation and
+//            friends to validate strings.
+//
+//       2) api/internal/validate.FieldValidator
+//
+//            At time of writing, this is a do-nothing
+//            validator as it's not critical to kustomize function.
+//
+// Proposed plan:
+//  [ ] Ship kustomize with the ability to switch from 1 to 2 via
+//      an --enable_kyaml flag.
+//  [ ] Make --enable_kyaml true by default.
+//  [ ] When 2 is not noticeably more buggy than 1, delete 1.
+//      I.e. delete k8sdeps/, transitively deleting all k8s.io/api* deps.
+//      This DepProvider should be left in place to retain these
+//      comments, but it will have only one choice.
+//  [ ] The way is now clear to reintegrate into kubectl.
+//      This should be done ASAP; the last step is cleanup.
+//  [ ] With only one impl of Kunstructure remaining, that interface
+//      and WNode can be deleted, along with this DepProvider.
+//      The other two interfaces could be dropped too.
+//
+// When the above is done, kustomize will use yaml.RNode and/or
+// KRM Config Functions directly and exclusively.
+// If you're reading this, plan not done.
+//
+type DepProvider struct {
+	resourceFactory *resource.Factory
+	merginator      resmap.Merginator
+	fieldValidator  ifc.Validator
+}
+
+func makeK8sdepBasedInstances() *DepProvider {
+	kf := kunstruct.NewKunstructuredFactoryImpl()
+	rf := resource.NewFactory(kf)
+	return &DepProvider{
+		resourceFactory: rf,
+		merginator:      merge.NewMerginator(rf),
+		fieldValidator:  validator.NewKustValidator(),
+	}
+}
+
+func makeKyamlBasedInstances() *DepProvider {
+	kf := &wrappy.WNodeFactory{}
+	rf := resource.NewFactory(kf)
+	return &DepProvider{
+		resourceFactory: rf,
+		merginator:      kmerge.NewMerginator(rf),
+		fieldValidator:  validate.NewFieldValidator(),
+	}
+}
+
+func NewDepProvider(useKyaml bool) *DepProvider {
+	if useKyaml {
+		return makeKyamlBasedInstances()
+	}
+	return makeK8sdepBasedInstances()
+}
+
+func (dp *DepProvider) GetResourceFactory() *resource.Factory {
+	return dp.resourceFactory
+}
+
+func (dp *DepProvider) GetMerginator() resmap.Merginator {
+	return dp.merginator
+}
+
+func (dp *DepProvider) GetFieldValidator() ifc.Validator {
+	return dp.fieldValidator
+}

api/krusty/issue2896_test.go

@@ -0,0 +1,106 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package krusty_test
+
+import (
+	"testing"
+
+	kusttest_test "sigs.k8s.io/kustomize/api/testutils/kusttest"
+)
+
+func writeIssueBase(th kusttest_test.Harness) {
+	th.WriteK("base", `
+nameSuffix: -test-api
+
+resources:
+ - deploy.yaml
+`)
+	th.WriteF("base/deploy.yaml", `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: example
+spec:
+  template:
+    spec:
+      containers:
+        - name: example
+          image: example:1.0
+          volumeMounts:
+            - name: conf
+              mountPath: /etc/config
+      volumes:
+        - name: conf
+          configMap:
+            name: conf
+`)
+}
+
+func TestIssue2896Base(t *testing.T) {
+	th := kusttest_test.MakeHarness(t)
+	writeIssueBase(th)
+	m := th.Run("base", th.MakeDefaultOptions())
+	th.AssertActualEqualsExpected(m, `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: example-test-api
+spec:
+  template:
+    spec:
+      containers:
+      - image: example:1.0
+        name: example
+        volumeMounts:
+        - mountPath: /etc/config
+          name: conf
+      volumes:
+      - configMap:
+          name: conf
+        name: conf
+`)
+}
+
+func TestIssue2896Overlay(t *testing.T) {
+	th := kusttest_test.MakeHarness(t)
+	writeIssueBase(th)
+	th.WriteK("overlay", `
+resources:
+  - ../base
+
+patches:
+  - patch: |-
+      apiVersion: apps/v1
+      kind: Deployment
+      metadata:
+        name: example
+      spec:
+        template:
+          spec:
+            containers:
+             - name: example
+               image: example:2.0
+`)
+
+	m := th.Run("overlay", th.MakeDefaultOptions())
+	th.AssertActualEqualsExpected(m, `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: example-test-api
+spec:
+  template:
+    spec:
+      containers:
+      - image: example:2.0
+        name: example
+        volumeMounts:
+        - mountPath: /etc/config
+          name: conf
+      volumes:
+      - configMap:
+          name: conf
+        name: conf
+`)
+}

api/krusty/kustomizationmetadata_test.go

@@ -0,0 +1,57 @@
+package krusty_test
+
+import (
+	"testing"
+
+	kusttest_test "sigs.k8s.io/kustomize/api/testutils/kusttest"
+)
+
+func TestKustomizationMetadata(t *testing.T) {
+	th := kusttest_test.MakeHarness(t)
+	th.WriteF("/app/resources.yaml", `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: testing123
+spec:
+  replicas: 1
+  selector: null
+  template:
+    spec:
+      containers:
+      - name: event
+        image: testing123
+        imagePullPolicy: IfNotPresent
+      imagePullSecrets: []`)
+
+	th.WriteK("/app", `
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+metadata:
+  annotations:
+    config.kubernetes.io/local-config: "true"
+  labels:
+    foo: bar
+  name: test_kustomization
+resources:
+- resources.yaml  
+`)
+
+	m := th.Run("/app", th.MakeDefaultOptions())
+	th.AssertActualEqualsExpected(m, `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: testing123
+spec:
+  replicas: 1
+  selector: null
+  template:
+    spec:
+      containers:
+      - image: testing123
+        imagePullPolicy: IfNotPresent
+        name: event
+      imagePullSecrets: []
+`)
+}

api/krusty/kustomizer.go

@@ -8,16 +8,13 @@ import (
 
 	"sigs.k8s.io/kustomize/api/builtins"
 	"sigs.k8s.io/kustomize/api/filesys"
-	"sigs.k8s.io/kustomize/api/internal/k8sdeps/transformer"
 	pLdr "sigs.k8s.io/kustomize/api/internal/plugins/loader"
 	"sigs.k8s.io/kustomize/api/internal/target"
-	"sigs.k8s.io/kustomize/api/k8sdeps/kunstruct"
-	"sigs.k8s.io/kustomize/api/k8sdeps/validator"
 	"sigs.k8s.io/kustomize/api/konfig"
+	"sigs.k8s.io/kustomize/api/krusty/internal/provider"
 	fLdr "sigs.k8s.io/kustomize/api/loader"
 	"sigs.k8s.io/kustomize/api/provenance"
 	"sigs.k8s.io/kustomize/api/resmap"
-	"sigs.k8s.io/kustomize/api/resource"
 	"sigs.k8s.io/kustomize/api/types"
 )
 
@@ -28,13 +25,18 @@ import (
 // number of overlays and bases), then make a Kustomizer
 // injected with the given fileystem, then call Run.
 type Kustomizer struct {
-	fSys    filesys.FileSystem
-	options *Options
+	fSys        filesys.FileSystem
+	options     *Options
+	depProvider *provider.DepProvider
 }
 
 // MakeKustomizer returns an instance of Kustomizer.
 func MakeKustomizer(fSys filesys.FileSystem, o *Options) *Kustomizer {
-	return &Kustomizer{fSys: fSys, options: o}
+	return &Kustomizer{
+		fSys:        fSys,
+		options:     o,
+		depProvider: provider.NewDepProvider(o.UseKyaml),
+	}
 }
 
 // Run performs a kustomization.
@@ -49,11 +51,9 @@ func MakeKustomizer(fSys filesys.FileSystem, o *Options) *Kustomizer {
 // on any number of internal paths (e.g. the filesystem may contain
 // multiple overlays, and Run can be called on each of them).
 func (b *Kustomizer) Run(path string) (resmap.ResMap, error) {
-	pf := transformer.NewFactoryImpl()
-	rf := resmap.NewFactory(
-		resource.NewFactory(
-			kunstruct.NewKunstructuredFactoryImpl()),
-		pf)
+	resmapFactory := resmap.NewFactory(
+		b.depProvider.GetResourceFactory(),
+		b.depProvider.GetMerginator())
 	lr := fLdr.RestrictionNone
 	if b.options.LoadRestrictions == types.LoadRestrictionsRootOnly {
 		lr = fLdr.RestrictionRootOnly
@@ -65,10 +65,9 @@ func (b *Kustomizer) Run(path string) (resmap.ResMap, error) {
 	defer ldr.Cleanup()
 	kt := target.NewKustTarget(
 		ldr,
-		validator.NewKustValidator(),
-		rf,
-		pf,
-		pLdr.NewLoader(b.options.PluginConfig, rf),
+		b.depProvider.GetFieldValidator(),
+		resmapFactory,
+		pLdr.NewLoader(b.options.PluginConfig, resmapFactory),
 	)
 	err = kt.Load()
 	if err != nil {
@@ -84,7 +83,9 @@ func (b *Kustomizer) Run(path string) (resmap.ResMap, error) {
 	}
 	if b.options.AddManagedbyLabel {
 		t := builtins.LabelTransformerPlugin{
-			Labels: map[string]string{konfig.ManagedbyLabelKey: fmt.Sprintf("kustomize-%s", provenance.GetProvenance().Version)},
+			Labels: map[string]string{
+				konfig.ManagedbyLabelKey: fmt.Sprintf(
+					"kustomize-%s", provenance.GetProvenance().Version)},
 			FieldSpecs: []types.FieldSpec{{
 				Path:               "metadata/labels",
 				CreateIfNotPresent: true,

api/krusty/multiplepatch_test.go

@@ -146,12 +146,12 @@ spec:
       - gcePersistentDisk:
           pdName: nginx-persistent-storage
         name: nginx-persistent-storage
-      - configMap:
-          name: a-b-configmap-in-base-798k5k7g9f
-        name: configmap-in-base
       - configMap:
           name: a-configmap-in-overlay-dc6fm46dhm
         name: configmap-in-overlay
+      - configMap:
+          name: a-b-configmap-in-base-798k5k7g9f
+        name: configmap-in-base
 ---
 apiVersion: v1
 kind: Service
@@ -351,12 +351,12 @@ spec:
       - gcePersistentDisk:
           pdName: nginx-persistent-storage
         name: nginx-persistent-storage
-      - configMap:
-          name: staging-team-foo-configmap-in-base-798k5k7g9f
-        name: configmap-in-base
       - configMap:
           name: staging-configmap-in-overlay-dc6fm46dhm
         name: configmap-in-overlay
+      - configMap:
+          name: staging-team-foo-configmap-in-base-798k5k7g9f
+        name: configmap-in-base
 ---
 apiVersion: v1
 kind: Service

api/krusty/nameprefixsuffixpatch_test.go

@@ -0,0 +1,113 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package krusty_test
+
+import (
+	"testing"
+
+	kusttest_test "sigs.k8s.io/kustomize/api/testutils/kusttest"
+)
+
+// Coverage for issue #2609
+func TestNamePrefixSuffixPatch(t *testing.T) {
+	th := kusttest_test.MakeHarness(t)
+
+	th.WriteF("handlers/kustomization.yaml", `
+nameSuffix: -suffix
+
+resources:
+- deployment.yaml
+`)
+
+	th.WriteF("handlers/deployment.yaml", `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: short
+spec:
+  template:
+    spec:
+      containers:
+      - name: handler
+`)
+
+	th.WriteF("mysql/kustomization.yaml", `
+configMapGenerator:
+- name: mysql
+  literals:
+  - MYSQL_USER=default
+  - MYSQL_DATABASE=default
+  - PORT=3306
+`)
+
+	th.WriteK(".", `
+resources:
+- mysql
+- handlers
+
+configMapGenerator:
+- name: mysql
+  behavior: merge
+  literals:
+  - MYSQL_DATABASE=db
+  - MYSQL_USER=my-user
+  - MYSQL_PASSWORD='correct horse battery staple'
+
+patches:
+- target:
+    kind: Deployment
+    name: s.*
+  patch: |-
+    kind: Deployment
+    metadata:
+      name: ignored
+    spec:
+      template:
+        spec:
+          containers:
+          - name: handler
+            envFrom:
+            - configMapRef:
+                name: mysql
+            env:
+            - valueFrom:
+                configMapKeyRef:
+                  name: mysql
+                  key: MYSQL_DATABASE
+`)
+
+	m := th.Run(".", th.MakeDefaultOptions())
+	// Per #2609, the desired behavior is for configMapRef.name and configMapKeyRef.name to be "mysql-9792mdchtg" not "mysql"
+	th.AssertActualEqualsExpected(m, `
+apiVersion: v1
+data:
+  MYSQL_DATABASE: db
+  MYSQL_PASSWORD: correct horse battery staple
+  MYSQL_USER: my-user
+  PORT: "3306"
+kind: ConfigMap
+metadata:
+  annotations: {}
+  labels: {}
+  name: mysql-9792mdchtg
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: short-suffix
+spec:
+  template:
+    spec:
+      containers:
+      - env:
+        - valueFrom:
+            configMapKeyRef:
+              key: MYSQL_DATABASE
+              name: mysql-9792mdchtg
+        envFrom:
+        - configMapRef:
+            name: mysql-9792mdchtg
+        name: handler
+`)
+}

api/krusty/nullvalues_test.go

@@ -9,7 +9,7 @@ import (
 	kusttest_test "sigs.k8s.io/kustomize/api/testutils/kusttest"
 )
 
-func TestNullValues(t *testing.T) {
+func TestNullValues1(t *testing.T) {
 	th := kusttest_test.MakeHarness(t)
 	th.WriteF("/app/deployment.yaml", `
 apiVersion: apps/v1
@@ -62,3 +62,36 @@ spec:
         name: example
 `)
 }
+
+func TestNullValues2(t *testing.T) {
+	th := kusttest_test.MakeHarness(t)
+	th.WriteF("deploy.yaml", `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test
+spec:
+  template:
+    spec:
+      containers:
+        - name: test
+      volumes: null
+`)
+	th.WriteK(".", `
+resources:
+- deploy.yaml
+`)
+	m := th.Run(".", th.MakeDefaultOptions())
+	th.AssertActualEqualsExpected(m, `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test
+spec:
+  template:
+    spec:
+      containers:
+      - name: test
+      volumes: null
+`)
+}

api/krusty/options.go

@@ -32,14 +32,20 @@ type Options struct {
 
 	// Options related to kustomize plugins.
 	PluginConfig *types.PluginConfig
+
+	// When true, use kyaml/ packages to manipulate KRM yaml.
+	// When false, use k8sdeps/ instead (uses k8s.io/api* packages).
+	UseKyaml bool
 }
 
 // MakeDefaultOptions returns a default instance of Options.
 func MakeDefaultOptions() *Options {
 	return &Options{
-		DoLegacyResourceSort: true,
+		DoLegacyResourceSort: false,
+		AddManagedbyLabel:    false,
 		LoadRestrictions:     types.LoadRestrictionsRootOnly,
 		DoPrune:              false,
 		PluginConfig:         konfig.DisabledPluginConfig(),
+		UseKyaml:             false,
 	}
 }

api/krusty/rolebindingacrossnamespace_test.go

@@ -213,3 +213,132 @@ roleRef:
   name: my-role-ns2
 `)
 }
+
+// The ServiceAccount in subjects in role binding can be across namespace
+// but the roleRef is not. This test is used to cover such case.
+func TestRoleBindingWhenSubjectsAcrossNamespace(t *testing.T) {
+	th := kusttest_test.MakeEnhancedHarness(t)
+	defer th.Reset()
+	th.WriteK("/app", `
+resources:
+- ./ns1
+- ./ns2
+`)
+	th.WriteK("/app/ns1", `
+namespace: namespace-1
+resources:
+- role-ns1.yaml
+- rolebinding-ns1.yaml
+`)
+	th.WriteF("/app/ns1/role-ns1.yaml", `
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: testRole
+rules:
+  - apiGroups: [""]
+    resources: ["pods"]
+    verbs: ["get"]
+`)
+	th.WriteF("/app/ns1/rolebinding-ns1.yaml", `
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: testRoleBinding
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: testRole
+subjects:
+  - kind: ServiceAccount
+    name: testAccount
+    namespace: namespace-2
+`)
+	th.WriteK("/app/ns2", `
+namespace: namespace-2
+resources:
+- role-ns2.yaml
+- rolebinding-ns2.yaml
+`)
+	th.WriteF("/app/ns2/role-ns2.yaml", `
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: testRole
+rules:
+  - apiGroups: [""]
+    resources: ["pods"]
+    verbs: ["get"]
+`)
+	th.WriteF("/app/ns2/rolebinding-ns2.yaml", `
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: testRoleBinding
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: testRole
+subjects:
+  - kind: ServiceAccount
+    name: testAccount
+    namespace: namespace-1
+`)
+
+	m := th.Run("/app", th.MakeDefaultOptions())
+	th.AssertActualEqualsExpected(m, `
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: testRole
+  namespace: namespace-1
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - pods
+  verbs:
+  - get
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: testRoleBinding
+  namespace: namespace-1
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: testRole
+subjects:
+- kind: ServiceAccount
+  name: testAccount
+  namespace: namespace-2
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: testRole
+  namespace: namespace-2
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - pods
+  verbs:
+  - get
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: testRoleBinding
+  namespace: namespace-2
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: testRole
+subjects:
+- kind: ServiceAccount
+  name: testAccount
+  namespace: namespace-1
+`)
+}

api/krusty/stringquoteblank_test.go

@@ -0,0 +1,79 @@
+package krusty_test
+
+import (
+	"testing"
+
+	kusttest_test "sigs.k8s.io/kustomize/api/testutils/kusttest"
+)
+
+// This test is for output string style.
+// Currently all quotes will be removed if the string is valid as plain (unquoted) style.
+// If a string cannot be unquoted, it will be put into a pair of single quotes.
+// See https://yaml.org/spec/1.2/spec.html#id2788859 for more details about what kind of string
+// is invalid as plain style.
+func TestLongLineBreaks(t *testing.T) {
+	th := kusttest_test.MakeHarness(t)
+	th.WriteF("/app/deployment.yaml", `
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: test
+spec:
+  template:
+    spec:
+      containers:
+      - name: mariadb
+        image: test
+        env:
+        - name: SHORT_STRING
+          value: short_string
+        - name: SHORT_STRING_WITH_SINGLE_QUOTE
+          value: 'short_string'
+        - name: SHORT_STRING_WITH_DOUBLE_QUOTE
+          value: "short_string"
+        - name: SHORT_STRING_BLANK
+          value: short string
+        - name: LONG_STRING_BLANK
+          value: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas suscipit ex non molestie varius.
+        - name: LONG_STRING_BLANK_WITH_SINGLE_QUOTE
+          value: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas suscipit ex non molestie varius.'
+        - name: LONG_STRING_BLANK_WITH_DOUBLE_QUOTE
+          value: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas suscipit ex non molestie varius."
+        - name: INVALID_PLAIN_STYLE_STRING
+          value: ': test'
+`)
+	th.WriteK("/app", `
+resources:
+- deployment.yaml
+`)
+	m := th.Run("/app", th.MakeDefaultOptions())
+	th.AssertActualEqualsExpected(m, `
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: test
+spec:
+  template:
+    spec:
+      containers:
+      - env:
+        - name: SHORT_STRING
+          value: short_string
+        - name: SHORT_STRING_WITH_SINGLE_QUOTE
+          value: short_string
+        - name: SHORT_STRING_WITH_DOUBLE_QUOTE
+          value: short_string
+        - name: SHORT_STRING_BLANK
+          value: short string
+        - name: LONG_STRING_BLANK
+          value: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas suscipit ex non molestie varius.
+        - name: LONG_STRING_BLANK_WITH_SINGLE_QUOTE
+          value: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas suscipit ex non molestie varius.
+        - name: LONG_STRING_BLANK_WITH_DOUBLE_QUOTE
+          value: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas suscipit ex non molestie varius.
+        - name: INVALID_PLAIN_STYLE_STRING
+          value: ': test'
+        image: test
+        name: mariadb
+`)
+}

api/krusty/transformersimage_test.go

@@ -215,25 +215,25 @@ spec2:
   template:
     spec:
       containers:
-      - image: nginx:v1
+      - image: nginx:v2
         name: nginx3
-      - image: my-nginx:latest
+      - image: my-nginx:previous
         name: nginx4
 spec3:
   template:
     spec:
       initContainers:
-      - image: postgres:alpine-9
+      - image: my-postgres:v3
         name: postgresdb
-      - image: docker:17-git
+      - image: my-docker@sha256:25a0d4b4
         name: init-docker
-      - image: myprivaterepohostname:1234/my/image:latest
+      - image: myprivaterepohostname:1234/my/image:v1.0.1
         name: myImage
-      - image: myprivaterepohostname:1234/my/image
+      - image: myprivaterepohostname:1234/my/image:v1.0.1
         name: myImage2
       - image: my-app-image:v1
         name: my-app
-      - image: gcr.io:8080/my-project/my-cool-app:latest
+      - image: my-cool-app:latest
         name: my-cool-app
 `)
 }

api/krusty/variableref_test.go

@@ -1969,3 +1969,70 @@ spec:
     server: kustomized-nfs-server-service.default.srv.cluster.local
 `)
 }
+
+func TestDeploymentAnnotations(t *testing.T) {
+	th := kusttest_test.MakeHarness(t)
+	th.WriteK("/app", `
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+configMapGenerator:
+  - name: testConfigMap
+    envs:
+      - test.properties
+
+vars:
+  - name: FOO
+    objref:
+      kind: ConfigMap
+      name: testConfigMap
+      apiVersion: v1
+    fieldref:
+      fieldpath: data.foo
+
+commonAnnotations:
+  foo: $(FOO)
+
+resources:
+  - deployment.yaml
+`)
+
+	th.WriteF("/app/deployment.yaml", `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test
+spec:
+  template:
+    spec:
+      containers:
+        - name: test
+`)
+	th.WriteF("/app/test.properties", `foo=bar`)
+	m := th.Run("/app", th.MakeDefaultOptions())
+	th.AssertActualEqualsExpected(m, `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  annotations:
+    foo: bar
+  name: test
+spec:
+  template:
+    metadata:
+      annotations:
+        foo: bar
+    spec:
+      containers:
+      - name: test
+---
+apiVersion: v1
+data:
+  foo: bar
+kind: ConfigMap
+metadata:
+  annotations:
+    foo: bar
+  name: testConfigMap-798k5k7g9f
+`)
+}

api/loader/fileloader.go

@@ -199,7 +199,9 @@ func (fl *fileLoader) New(path string) (ifc.Loader, error) {
 	}
 	root, errDir := demandDirectoryRoot(fl.fSys, fl.root.Join(path))
 	if errDir != nil {
-		return nil, fmt.Errorf("Error loading %s with git: %v, dir: %v, get: %v", path, errGit, errDir, errGet)
+		return nil, fmt.Errorf(
+			"error loading %s with git: %v, dir: %v, get: %v",
+			path, errGit, errDir, errGet)
 	}
 	if errDir := fl.errIfGitContainmentViolation(root); errDir != nil {
 		return nil, errDir

api/loader/getter.go

@@ -20,6 +20,9 @@ type remoteTargetSpec struct {
 
 	// Dir is where the resource is saved
 	Dir filesys.ConfirmedDir
+
+	// TempDir is the directory created to hold all resources, including Dir
+	TempDir filesys.ConfirmedDir
 }
 
 // Getter is a function that can gets resource
@@ -31,7 +34,7 @@ func newLoaderAtGetter(raw string, fSys filesys.FileSystem, referrer *fileLoader
 	}
 
 	cleaner := func() error {
-		return fSys.RemoveAll(rs.Dir.String())
+		return fSys.RemoveAll(rs.TempDir.String())
 	}
 
 	if err := getter(rs); err != nil {
@@ -55,12 +58,12 @@ func newLoaderAtGetter(raw string, fSys filesys.FileSystem, referrer *fileLoader
 func getRemoteTarget(rs *remoteTargetSpec) error {
 	var err error
 
-	rs.Dir, err = filesys.NewTmpConfirmedDir()
+	rs.TempDir, err = filesys.NewTmpConfirmedDir()
 	if err != nil {
 		return err
 	}
 
-	rs.Dir = filesys.ConfirmedDir(rs.Dir.Join("repo"))
+	rs.Dir = filesys.ConfirmedDir(rs.TempDir.Join("repo"))
 
 	// Get the pwd
 	pwd, err := os.Getwd()

api/loader/loader.go

@@ -39,5 +39,7 @@ func NewLoader(
 		return newLoaderAtConfirmedDir(lr, root, fSys, nil, git.ClonerUsingGitExec, getRemoteTarget), nil
 	}
 
-	return nil, fmt.Errorf("Error creating new loader with git: %v, dir: %v, get: %v", errGit, errDir, errGet)
+	return nil, fmt.Errorf(
+		"error creating new loader with git: %v, dir: %v, get: %v",
+		errGit, errDir, errGet)
 }

api/resid/gvk.go

@@ -5,6 +5,8 @@ package resid
 
 import (
 	"strings"
+
+	"sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
 // Gvk identifies a Kubernetes API type.
@@ -22,8 +24,15 @@ func FromKind(k string) Gvk {
 	}
 }
 
-// GvkFromString makes a Gvk with a string,
-// which is constructed by String() function
+// ParseGroupVersion parses a KRM metadata apiVersion field.
+func ParseGroupVersion(apiVersion string) (group, version string) {
+	if i := strings.Index(apiVersion, "/"); i > -1 {
+		return apiVersion[:i], apiVersion[i+1:]
+	}
+	return "", apiVersion
+}
+
+// GvkFromString makes a Gvk from the output of Gvk.String().
 func GvkFromString(s string) Gvk {
 	values := strings.Split(s, fieldSep)
 	g := values[0]
@@ -70,6 +79,22 @@ func (x Gvk) String() string {
 	return strings.Join([]string{g, v, k}, fieldSep)
 }
 
+// StringWoEmptyField returns a string representation of the GVK. Non-exist
+// fields will be omitted.
+func (x Gvk) StringWoEmptyField() string {
+	var s []string
+	if x.Group != "" {
+		s = append(s, x.Group)
+	}
+	if x.Version != "" {
+		s = append(s, x.Version)
+	}
+	if x.Kind != "" {
+		s = append(s, x.Kind)
+	}
+	return strings.Join(s, fieldSep)
+}
+
 // Equals returns true if the Gvk's have equal fields.
 func (x Gvk) Equals(o Gvk) bool {
 	return x.Group == o.Group && x.Version == o.Version && x.Kind == o.Kind
@@ -92,6 +117,7 @@ var orderFirst = []string{
 	"ClusterRoleBinding",
 	"ConfigMap",
 	"Secret",
+	"Endpoints",
 	"Service",
 	"LimitRange",
 	"PriorityClass",
@@ -164,39 +190,22 @@ func (x Gvk) IsSelected(selector *Gvk) bool {
 	return true
 }
 
-var notNamespaceableKinds = []string{
-	"APIService",
-	"CSIDriver",
-	"CSINode",
-	"CertificateSigningRequest",
-	"Cluster",
-	"ClusterRole",
-	"ClusterRoleBinding",
-	"ComponentStatus",
-	"CustomResourceDefinition",
-	"MutatingWebhookConfiguration",
-	"Namespace",
-	"Node",
-	"PersistentVolume",
-	"PodSecurityPolicy",
-	"PriorityClass",
-	"RuntimeClass",
-	"SelfSubjectAccessReview",
-	"SelfSubjectRulesReview",
-	"StorageClass",
-	"SubjectAccessReview",
-	"TokenReview",
-	"ValidatingWebhookConfiguration",
-	"VolumeAttachment",
+// toKyamlTypeMeta returns a yaml.TypeMeta from x's information.
+func (x Gvk) toKyamlTypeMeta() yaml.TypeMeta {
+	var apiVersion strings.Builder
+	if x.Group != "" {
+		apiVersion.WriteString(x.Group)
+		apiVersion.WriteString("/")
+	}
+	apiVersion.WriteString(x.Version)
+	return yaml.TypeMeta{
+		APIVersion: apiVersion.String(),
+		Kind:       x.Kind,
+	}
 }
 
 // IsNamespaceableKind returns true if x is a namespaceable Gvk
 // Implements https://kubernetes.io/docs/concepts/overview/working-with-objects/namespaces/#not-all-objects-are-in-a-namespace
 func (x Gvk) IsNamespaceableKind() bool {
-	for _, k := range notNamespaceableKinds {
-		if k == x.Kind {
-			return false
-		}
-	}
-	return true
+	return x.toKyamlTypeMeta().IsNamespaceable()
 }

api/resid/gvk_test.go

@@ -78,6 +78,8 @@ var lessThanTests = []struct {
 		Gvk{Group: "a", Version: "b", Kind: "ValidatingWebhookConfiguration"}},
 	{Gvk{Group: "a", Version: "b", Kind: "Service"},
 		Gvk{Group: "a", Version: "b", Kind: "APIService"}},
+	{Gvk{Group: "a", Version: "b", Kind: "Endpoints"},
+		Gvk{Group: "a", Version: "b", Kind: "Service"}},
 }
 
 func TestIsLessThan1(t *testing.T) {
@@ -94,15 +96,16 @@ func TestIsLessThan1(t *testing.T) {
 var stringTests = []struct {
 	x Gvk
 	s string
+	r string
 }{
-	{Gvk{}, "~G_~V_~K"},
-	{Gvk{Kind: "k"}, "~G_~V_k"},
-	{Gvk{Version: "v"}, "~G_v_~K"},
-	{Gvk{Version: "v", Kind: "k"}, "~G_v_k"},
-	{Gvk{Group: "g"}, "g_~V_~K"},
-	{Gvk{Group: "g", Kind: "k"}, "g_~V_k"},
-	{Gvk{Group: "g", Version: "v"}, "g_v_~K"},
-	{Gvk{Group: "g", Version: "v", Kind: "k"}, "g_v_k"},
+	{Gvk{}, "~G_~V_~K", ""},
+	{Gvk{Kind: "k"}, "~G_~V_k", "k"},
+	{Gvk{Version: "v"}, "~G_v_~K", "v"},
+	{Gvk{Version: "v", Kind: "k"}, "~G_v_k", "v_k"},
+	{Gvk{Group: "g"}, "g_~V_~K", "g"},
+	{Gvk{Group: "g", Kind: "k"}, "g_~V_k", "g_k"},
+	{Gvk{Group: "g", Version: "v"}, "g_v_~K", "g_v"},
+	{Gvk{Group: "g", Version: "v", Kind: "k"}, "g_v_k", "g_v_k"},
 }
 
 func TestString(t *testing.T) {
@@ -113,6 +116,38 @@ func TestString(t *testing.T) {
 	}
 }
 
+func TestStringWoEmptyField(t *testing.T) {
+	for _, hey := range stringTests {
+		if hey.x.StringWoEmptyField() != hey.r {
+			t.Fatalf("bad string %s for %v '%s'", hey.x.StringWoEmptyField(), hey.x, hey.r)
+		}
+	}
+}
+
+func TestParseGroupVersion(t *testing.T) {
+	tests := []struct {
+		input string
+		g     string
+		v     string
+	}{
+		{input: "", g: "", v: ""},
+		{input: "v1", g: "", v: "v1"},
+		{input: "apps/v1", g: "apps", v: "v1"},
+		{input: "/v1", g: "", v: "v1"},
+		{input: "apps/", g: "apps", v: ""},
+		{input: "/apps/", g: "", v: "apps/"},
+	}
+	for _, tc := range tests {
+		g, v := ParseGroupVersion(tc.input)
+		if g != tc.g {
+			t.Errorf("%s: expected group '%s', got '%s'", tc.input, tc.g, g)
+		}
+		if v != tc.v {
+			t.Errorf("%s: expected version '%s', got '%s'", tc.input, tc.v, v)
+		}
+	}
+}
+
 func TestSelectByGVK(t *testing.T) {
 	type testCase struct {
 		description string

api/resmap/factory.go

@@ -11,15 +11,24 @@ import (
 	"sigs.k8s.io/kustomize/api/types"
 )
 
+// Merginator merges resources.
+type Merginator interface {
+	// Merge creates a new ResMap by merging incoming resources.
+	// Error if conflict found.
+	Merge([]*resource.Resource) (ResMap, error)
+}
+
 // Factory makes instances of ResMap.
 type Factory struct {
+	// Makes resources.
 	resF *resource.Factory
-	tf   PatchFactory
+	// Makes ResMaps via merging.
+	pm Merginator
 }
 
 // NewFactory returns a new resmap.Factory.
-func NewFactory(rf *resource.Factory, tf PatchFactory) *Factory {
-	return &Factory{resF: rf, tf: tf}
+func NewFactory(rf *resource.Factory, pm Merginator) *Factory {
+	return &Factory{resF: rf, pm: pm}
 }
 
 // RF returns a resource.Factory.
@@ -87,6 +96,7 @@ func (rmF *Factory) NewResMapFromConfigMapArgs(
 	return newResMapFromResourceSlice(resources)
 }
 
+// FromConfigMapArgs creates a new ResMap containing one ConfigMap.
 func (rmF *Factory) FromConfigMapArgs(
 	kvLdr ifc.KvLoader, args types.ConfigMapArgs) (ResMap, error) {
 	res, err := rmF.resF.MakeConfigMap(kvLdr, &args)
@@ -111,6 +121,7 @@ func (rmF *Factory) NewResMapFromSecretArgs(
 	return newResMapFromResourceSlice(resources)
 }
 
+// FromSecretArgs creates a new ResMap containing one secret.
 func (rmF *Factory) FromSecretArgs(
 	kvLdr ifc.KvLoader, args types.SecretArgs) (ResMap, error) {
 	res, err := rmF.resF.MakeSecret(kvLdr, &args)
@@ -120,12 +131,14 @@ func (rmF *Factory) FromSecretArgs(
 	return rmF.FromResource(res), nil
 }
 
-func (rmF *Factory) MergePatches(patches []*resource.Resource) (
-	ResMap, error) {
-	return rmF.tf.MergePatches(patches, rmF.resF)
+// Merge creates a new ResMap by merging incoming resources.
+// Error if conflict found.
+func (rmF *Factory) Merge(patches []*resource.Resource) (ResMap, error) {
+	return rmF.pm.Merge(patches)
 }
 
-func newResMapFromResourceSlice(resources []*resource.Resource) (ResMap, error) {
+func newResMapFromResourceSlice(
+	resources []*resource.Resource) (ResMap, error) {
 	result := New()
 	for _, res := range resources {
 		err := result.Append(res)

api/resmap/patchfactory.go

@@ -1,15 +0,0 @@
-/// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-// Package patch holds miscellaneous interfaces used by kustomize.
-package resmap
-
-import (
-	"sigs.k8s.io/kustomize/api/resource"
-)
-
-// PatchFactory makes transformers that require k8sdeps.
-type PatchFactory interface {
-	MergePatches(patches []*resource.Resource,
-		rf *resource.Factory) (ResMap, error)
-}

api/resmap/resmap.go

@@ -6,16 +6,10 @@
 package resmap
 
 import (
-	"bytes"
-	"fmt"
-	"regexp"
-
-	"github.com/pkg/errors"
 	"sigs.k8s.io/kustomize/api/ifc"
 	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/resource"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/yaml"
 )
 
 // A Transformer modifies an instance of ResMap.
@@ -242,569 +236,3 @@ type ResMap interface {
 	// are selected by a Selector
 	Select(types.Selector) ([]*resource.Resource, error)
 }
-
-// resWrangler holds the content manipulated by kustomize.
-type resWrangler struct {
-	// Resource list maintained in load (append) order.
-	// This is important for transformers, which must
-	// be performed in a specific order, and for users
-	// who for whatever reasons wish the order they
-	// specify in kustomizations to be maintained and
-	// available as an option for final YAML rendering.
-	rList []*resource.Resource
-}
-
-func newOne() *resWrangler {
-	result := &resWrangler{}
-	result.Clear()
-	return result
-}
-
-// Clear implements ResMap.
-func (m *resWrangler) Clear() {
-	m.rList = nil
-}
-
-// Size implements ResMap.
-func (m *resWrangler) Size() int {
-	return len(m.rList)
-}
-
-func (m *resWrangler) indexOfResource(other *resource.Resource) int {
-	for i, r := range m.rList {
-		if r == other {
-			return i
-		}
-	}
-	return -1
-}
-
-// Resources implements ResMap.
-func (m *resWrangler) Resources() []*resource.Resource {
-	tmp := make([]*resource.Resource, len(m.rList))
-	copy(tmp, m.rList)
-	return tmp
-}
-
-// Append implements ResMap.
-func (m *resWrangler) Append(res *resource.Resource) error {
-	id := res.CurId()
-	if r := m.GetMatchingResourcesByCurrentId(id.Equals); len(r) > 0 {
-		return fmt.Errorf(
-			"may not add resource with an already registered id: %s", id)
-	}
-	m.rList = append(m.rList, res)
-	return nil
-}
-
-// Remove implements ResMap.
-func (m *resWrangler) Remove(adios resid.ResId) error {
-	tmp := newOne()
-	for _, r := range m.rList {
-		if r.CurId() != adios {
-			tmp.Append(r)
-		}
-	}
-	if tmp.Size() != m.Size()-1 {
-		return fmt.Errorf("id %s not found in removal", adios)
-	}
-	m.rList = tmp.rList
-	return nil
-}
-
-// Replace implements ResMap.
-func (m *resWrangler) Replace(res *resource.Resource) (int, error) {
-	id := res.CurId()
-	i, err := m.GetIndexOfCurrentId(id)
-	if err != nil {
-		return -1, errors.Wrap(err, "in Replace")
-	}
-	if i < 0 {
-		return -1, fmt.Errorf("cannot find resource with id %s to replace", id)
-	}
-	m.rList[i] = res
-	return i, nil
-}
-
-// AllIds implements ResMap.
-func (m *resWrangler) AllIds() (ids []resid.ResId) {
-	ids = make([]resid.ResId, m.Size())
-	for i, r := range m.rList {
-		ids[i] = r.CurId()
-	}
-	return
-}
-
-// Debug implements ResMap.
-func (m *resWrangler) Debug(title string) {
-	fmt.Println("--------------------------- " + title)
-	firstObj := true
-	for i, r := range m.rList {
-		if firstObj {
-			firstObj = false
-		} else {
-			fmt.Println("---")
-		}
-		fmt.Printf("# %d  %s\n", i, r.OrgId())
-		blob, err := yaml.Marshal(r.Map())
-		if err != nil {
-			panic(err)
-		}
-		fmt.Println(string(blob))
-	}
-}
-
-type IdMatcher func(resid.ResId) bool
-
-// GetByIndex implements ResMap.
-func (m *resWrangler) GetByIndex(i int) *resource.Resource {
-	if i < 0 || i >= m.Size() {
-		return nil
-	}
-	return m.rList[i]
-}
-
-// GetIndexOfCurrentId implements ResMap.
-func (m *resWrangler) GetIndexOfCurrentId(id resid.ResId) (int, error) {
-	count := 0
-	result := -1
-	for i, r := range m.rList {
-		if id.Equals(r.CurId()) {
-			count++
-			result = i
-		}
-	}
-	if count > 1 {
-		return -1, fmt.Errorf("id matched %d resources", count)
-	}
-	return result, nil
-}
-
-type IdFromResource func(r *resource.Resource) resid.ResId
-
-func GetOriginalId(r *resource.Resource) resid.ResId { return r.OrgId() }
-func GetCurrentId(r *resource.Resource) resid.ResId  { return r.CurId() }
-
-// GetMatchingResourcesByCurrentId implements ResMap.
-func (m *resWrangler) GetMatchingResourcesByCurrentId(
-	matches IdMatcher) []*resource.Resource {
-	return m.filteredById(matches, GetCurrentId)
-}
-
-// GetMatchingResourcesByOriginalId implements ResMap.
-func (m *resWrangler) GetMatchingResourcesByOriginalId(
-	matches IdMatcher) []*resource.Resource {
-	return m.filteredById(matches, GetOriginalId)
-}
-
-func (m *resWrangler) filteredById(
-	matches IdMatcher, idGetter IdFromResource) []*resource.Resource {
-	var result []*resource.Resource
-	for _, r := range m.rList {
-		if matches(idGetter(r)) {
-			result = append(result, r)
-		}
-	}
-	return result
-}
-
-// GetByCurrentId implements ResMap.
-func (m *resWrangler) GetByCurrentId(
-	id resid.ResId) (*resource.Resource, error) {
-	return demandOneMatch(m.GetMatchingResourcesByCurrentId, id, "Current")
-}
-
-// GetByOriginalId implements ResMap.
-func (m *resWrangler) GetByOriginalId(
-	id resid.ResId) (*resource.Resource, error) {
-	return demandOneMatch(m.GetMatchingResourcesByOriginalId, id, "Original")
-}
-
-// GetById implements ResMap.
-func (m *resWrangler) GetById(
-	id resid.ResId) (*resource.Resource, error) {
-	match, err1 := m.GetByOriginalId(id)
-	if err1 == nil {
-		return match, nil
-	}
-	match, err2 := m.GetByCurrentId(id)
-	if err2 == nil {
-		return match, nil
-	}
-	return nil, fmt.Errorf(
-		"%s; %s; failed to find unique target for patch %s",
-		err1.Error(), err2.Error(), id.GvknString())
-}
-
-type resFinder func(IdMatcher) []*resource.Resource
-
-func demandOneMatch(
-	f resFinder, id resid.ResId, s string) (*resource.Resource, error) {
-	r := f(id.Equals)
-	if len(r) == 1 {
-		return r[0], nil
-	}
-	if len(r) > 1 {
-		return nil, fmt.Errorf("multiple matches for %sId %s", s, id)
-	}
-	return nil, fmt.Errorf("no matches for %sId %s", s, id)
-}
-
-// GroupedByCurrentNamespace implements ResMap.GroupByCurrentNamespace
-func (m *resWrangler) GroupedByCurrentNamespace() map[string][]*resource.Resource {
-	items := m.groupedByCurrentNamespace()
-	delete(items, resid.TotallyNotANamespace)
-	return items
-}
-
-// NonNamespaceable implements ResMap.NonNamespaceable
-func (m *resWrangler) NonNamespaceable() []*resource.Resource {
-	return m.groupedByCurrentNamespace()[resid.TotallyNotANamespace]
-}
-
-func (m *resWrangler) groupedByCurrentNamespace() map[string][]*resource.Resource {
-	byNamespace := make(map[string][]*resource.Resource)
-	for _, res := range m.rList {
-		namespace := res.CurId().EffectiveNamespace()
-		if _, found := byNamespace[namespace]; !found {
-			byNamespace[namespace] = []*resource.Resource{}
-		}
-		byNamespace[namespace] = append(byNamespace[namespace], res)
-	}
-	return byNamespace
-}
-
-// GroupedByNamespace implements ResMap.GroupByOrginalNamespace
-func (m *resWrangler) GroupedByOriginalNamespace() map[string][]*resource.Resource {
-	items := m.groupedByOriginalNamespace()
-	delete(items, resid.TotallyNotANamespace)
-	return items
-}
-
-func (m *resWrangler) groupedByOriginalNamespace() map[string][]*resource.Resource {
-	byNamespace := make(map[string][]*resource.Resource)
-	for _, res := range m.rList {
-		namespace := res.OrgId().EffectiveNamespace()
-		if _, found := byNamespace[namespace]; !found {
-			byNamespace[namespace] = []*resource.Resource{}
-		}
-		byNamespace[namespace] = append(byNamespace[namespace], res)
-	}
-	return byNamespace
-}
-
-// AsYaml implements ResMap.
-func (m *resWrangler) AsYaml() ([]byte, error) {
-	firstObj := true
-	var b []byte
-	buf := bytes.NewBuffer(b)
-	for _, res := range m.Resources() {
-		out, err := yaml.Marshal(res.Map())
-		if err != nil {
-			return nil, err
-		}
-		if firstObj {
-			firstObj = false
-		} else {
-			if _, err = buf.WriteString("---\n"); err != nil {
-				return nil, err
-			}
-		}
-		if _, err = buf.Write(out); err != nil {
-			return nil, err
-		}
-	}
-	return buf.Bytes(), nil
-}
-
-// ErrorIfNotEqualSets implements ResMap.
-func (m *resWrangler) ErrorIfNotEqualSets(other ResMap) error {
-	m2, ok := other.(*resWrangler)
-	if !ok {
-		panic("bad cast")
-	}
-	if m.Size() != m2.Size() {
-		return fmt.Errorf(
-			"lists have different number of entries: %#v doesn't equal %#v",
-			m.rList, m2.rList)
-	}
-	seen := make(map[int]bool)
-	for _, r1 := range m.rList {
-		id := r1.CurId()
-		others := m2.GetMatchingResourcesByCurrentId(id.Equals)
-		if len(others) == 0 {
-			return fmt.Errorf(
-				"id in self missing from other; id: %s", id)
-		}
-		if len(others) > 1 {
-			return fmt.Errorf(
-				"id in self matches %d in other; id: %s", len(others), id)
-		}
-		r2 := others[0]
-		if !r1.KunstructEqual(r2) {
-			return fmt.Errorf(
-				"kunstruct not equal: \n -- %s,\n -- %s\n\n--\n%#v\n------\n%#v\n",
-				r1, r2, r1, r2)
-		}
-		seen[m2.indexOfResource(r2)] = true
-	}
-	if len(seen) != m.Size() {
-		return fmt.Errorf("counting problem %d != %d", len(seen), m.Size())
-	}
-	return nil
-}
-
-// ErrorIfNotEqualList implements ResMap.
-func (m *resWrangler) ErrorIfNotEqualLists(other ResMap) error {
-	m2, ok := other.(*resWrangler)
-	if !ok {
-		panic("bad cast")
-	}
-	if m.Size() != m2.Size() {
-		return fmt.Errorf(
-			"lists have different number of entries: %#v doesn't equal %#v",
-			m.rList, m2.rList)
-	}
-	for i, r1 := range m.rList {
-		r2 := m2.rList[i]
-		if !r1.Equals(r2) {
-			return fmt.Errorf(
-				"Item i=%d differs:\n  n1 = %s\n  n2 = %s\n  o1 = %s\n  o2 = %s\n",
-				i, r1.OrgId(), r2.OrgId(), r1, r2)
-		}
-	}
-	return nil
-}
-
-type resCopier func(r *resource.Resource) *resource.Resource
-
-// ShallowCopy implements ResMap.
-func (m *resWrangler) ShallowCopy() ResMap {
-	return m.makeCopy(
-		func(r *resource.Resource) *resource.Resource {
-			return r
-		})
-}
-
-// DeepCopy implements ResMap.
-func (m *resWrangler) DeepCopy() ResMap {
-	return m.makeCopy(
-		func(r *resource.Resource) *resource.Resource {
-			return r.DeepCopy()
-		})
-}
-
-// makeCopy copies the ResMap.
-func (m *resWrangler) makeCopy(copier resCopier) ResMap {
-	result := &resWrangler{}
-	result.rList = make([]*resource.Resource, m.Size())
-	for i, r := range m.rList {
-		result.rList[i] = copier(r)
-	}
-	return result
-}
-
-// SubsetThatCouldBeReferencedByResource implements ResMap.
-func (m *resWrangler) SubsetThatCouldBeReferencedByResource(
-	inputRes *resource.Resource) ResMap {
-	result := newOne()
-	inputId := inputRes.CurId()
-	isInputIdNamespaceable := inputId.IsNamespaceableKind()
-	rctxm := inputRes.PrefixesSuffixesEquals
-	subjectNamespaces := getNamespacesForRoleBinding(inputRes)
-	for _, r := range m.Resources() {
-		// Need to match more accuratly both at the time of selection and transformation.
-		// OutmostPrefixSuffixEquals is not accurate enough since it is only using
-		// the outer most suffix and the last prefix. Use PrefixedSuffixesEquals instead.
-		resId := r.CurId()
-		if (!isInputIdNamespaceable || !resId.IsNamespaceableKind() || resId.IsNsEquals(inputId) ||
-			isRoleBindingNamespace(&subjectNamespaces, r.GetNamespace())) && r.InSameKustomizeCtx(rctxm) {
-			result.append(r)
-		}
-	}
-	return result
-}
-
-// isRoleBindingNamespace returns true is the namespace `ns` is in role binding
-// namespaces `m`
-func isRoleBindingNamespace(m *map[string]bool, ns string) bool {
-	return (*m)[ns]
-}
-
-// getNamespacesForRoleBinding returns referenced ServiceAccount namespaces if the inputRes is
-// a RoleBinding
-func getNamespacesForRoleBinding(inputRes *resource.Resource) map[string]bool {
-	res := make(map[string]bool)
-	if inputRes.GetKind() != "RoleBinding" {
-		return res
-	}
-	subjects, err := inputRes.GetSlice("subjects")
-	if err != nil || subjects == nil {
-		return res
-	}
-
-	for _, s := range subjects {
-		subject := s.(map[string]interface{})
-		if subject["namespace"] == nil || subject["kind"] == nil ||
-			subject["kind"].(string) != "ServiceAccount" {
-			continue
-		}
-		res[subject["namespace"].(string)] = true
-	}
-
-	return res
-}
-
-func (m *resWrangler) append(res *resource.Resource) {
-	m.rList = append(m.rList, res)
-}
-
-// AppendAll implements ResMap.
-func (m *resWrangler) AppendAll(other ResMap) error {
-	if other == nil {
-		return nil
-	}
-	for _, res := range other.Resources() {
-		if err := m.Append(res); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// AbsorbAll implements ResMap.
-func (m *resWrangler) AbsorbAll(other ResMap) error {
-	if other == nil {
-		return nil
-	}
-	for _, r := range other.Resources() {
-		err := m.appendReplaceOrMerge(r)
-		if err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func (m *resWrangler) appendReplaceOrMerge(
-	res *resource.Resource) error {
-	id := res.CurId()
-	matches := m.GetMatchingResourcesByOriginalId(id.Equals)
-	if len(matches) == 0 {
-		matches = m.GetMatchingResourcesByCurrentId(id.Equals)
-	}
-	switch len(matches) {
-	case 0:
-		switch res.Behavior() {
-		case types.BehaviorMerge, types.BehaviorReplace:
-			return fmt.Errorf(
-				"id %#v does not exist; cannot merge or replace", id)
-		default:
-			// presumably types.BehaviorCreate
-			err := m.Append(res)
-			if err != nil {
-				return err
-			}
-		}
-	case 1:
-		old := matches[0]
-		if old == nil {
-			return fmt.Errorf("id lookup failure")
-		}
-		index := m.indexOfResource(old)
-		if index < 0 {
-			return fmt.Errorf("indexing problem")
-		}
-		switch res.Behavior() {
-		case types.BehaviorReplace:
-			res.Replace(old)
-		case types.BehaviorMerge:
-			res.Merge(old)
-		default:
-			return fmt.Errorf(
-				"id %#v exists; behavior must be merge or replace", id)
-		}
-		i, err := m.Replace(res)
-		if err != nil {
-			return err
-		}
-		if i != index {
-			return fmt.Errorf("unexpected index in replacement")
-		}
-	default:
-		return fmt.Errorf(
-			"found multiple objects %v that could accept merge of %v",
-			matches, id)
-	}
-	return nil
-}
-
-func anchorRegex(pattern string) string {
-	if pattern == "" {
-		return pattern
-	}
-	return "^" + pattern + "$"
-}
-
-// Select returns a list of resources that
-// are selected by a Selector
-func (m *resWrangler) Select(s types.Selector) ([]*resource.Resource, error) {
-	ns := regexp.MustCompile(anchorRegex(s.Namespace))
-	nm := regexp.MustCompile(anchorRegex(s.Name))
-	var result []*resource.Resource
-	for _, r := range m.Resources() {
-		curId := r.CurId()
-		orgId := r.OrgId()
-
-		// matches the namespace when namespace is not empty in the selector
-		// It first tries to match with the original namespace
-		// then matches with the current namespace
-		if r.GetNamespace() != "" {
-			matched := ns.MatchString(orgId.EffectiveNamespace())
-			if !matched {
-				matched = ns.MatchString(curId.EffectiveNamespace())
-				if !matched {
-					continue
-				}
-			}
-		}
-
-		// matches the name when name is not empty in the selector
-		// It first tries to match with the original name
-		// then matches with the current name
-		if r.GetName() != "" {
-			matched := nm.MatchString(orgId.Name)
-			if !matched {
-				matched = nm.MatchString(curId.Name)
-				if !matched {
-					continue
-				}
-			}
-		}
-
-		// matches the GVK
-		if !r.GetGvk().IsSelected(&s.Gvk) {
-			continue
-		}
-
-		// matches the label selector
-		matched, err := r.MatchesLabelSelector(s.LabelSelector)
-		if err != nil {
-			return nil, err
-		}
-		if !matched {
-			continue
-		}
-
-		// matches the annotation selector
-		matched, err = r.MatchesAnnotationSelector(s.AnnotationSelector)
-		if err != nil {
-			return nil, err
-		}
-		if !matched {
-			continue
-		}
-		result = append(result, r)
-	}
-	return result, nil
-}

api/resmap/resmap_test.go

@@ -3,899 +3,4 @@
 
 package resmap_test
 
-import (
-	"fmt"
-	"reflect"
-	"strings"
-	"testing"
-
-	"sigs.k8s.io/kustomize/api/k8sdeps/kunstruct"
-	"sigs.k8s.io/kustomize/api/resid"
-	. "sigs.k8s.io/kustomize/api/resmap"
-	"sigs.k8s.io/kustomize/api/resource"
-	resmaptest_test "sigs.k8s.io/kustomize/api/testutils/resmaptest"
-	"sigs.k8s.io/kustomize/api/types"
-)
-
-var rf = resource.NewFactory(
-	kunstruct.NewKunstructuredFactoryImpl())
-var rmF = NewFactory(rf, nil)
-
-func doAppend(t *testing.T, w ResMap, r *resource.Resource) {
-	err := w.Append(r)
-	if err != nil {
-		t.Fatalf("append error: %v", err)
-	}
-}
-func doRemove(t *testing.T, w ResMap, id resid.ResId) {
-	err := w.Remove(id)
-	if err != nil {
-		t.Fatalf("remove error: %v", err)
-	}
-}
-
-// Make a resource with a predictable name.
-func makeCm(i int) *resource.Resource {
-	return rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": fmt.Sprintf("cm%03d", i),
-			},
-		})
-}
-
-// Maintain the class invariant that no two
-// resources can have the same CurId().
-func TestAppendRejectsDuplicateResId(t *testing.T) {
-	w := New()
-	if err := w.Append(makeCm(1)); err != nil {
-		t.Fatalf("append error: %v", err)
-	}
-	err := w.Append(makeCm(1))
-	if err == nil {
-		t.Fatalf("expected append error")
-	}
-	if !strings.Contains(
-		err.Error(),
-		"may not add resource with an already registered id") {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-func TestAppendRemove(t *testing.T) {
-	w1 := New()
-	doAppend(t, w1, makeCm(1))
-	doAppend(t, w1, makeCm(2))
-	doAppend(t, w1, makeCm(3))
-	doAppend(t, w1, makeCm(4))
-	doAppend(t, w1, makeCm(5))
-	doAppend(t, w1, makeCm(6))
-	doAppend(t, w1, makeCm(7))
-	doRemove(t, w1, makeCm(1).OrgId())
-	doRemove(t, w1, makeCm(3).OrgId())
-	doRemove(t, w1, makeCm(5).OrgId())
-	doRemove(t, w1, makeCm(7).OrgId())
-
-	w2 := New()
-	doAppend(t, w2, makeCm(2))
-	doAppend(t, w2, makeCm(4))
-	doAppend(t, w2, makeCm(6))
-	if !reflect.DeepEqual(w1, w1) {
-		w1.Debug("w1")
-		w2.Debug("w2")
-		t.Fatalf("mismatch")
-	}
-
-	err := w2.Append(makeCm(6))
-	if err == nil {
-		t.Fatalf("expected error")
-	}
-}
-
-func TestRemove(t *testing.T) {
-	w := New()
-	r := makeCm(1)
-	err := w.Remove(r.OrgId())
-	if err == nil {
-		t.Fatalf("expected error")
-	}
-	err = w.Append(r)
-	if err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-	err = w.Remove(r.OrgId())
-	if err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-	err = w.Remove(r.OrgId())
-	if err == nil {
-		t.Fatalf("expected error")
-	}
-}
-
-func TestReplace(t *testing.T) {
-	cm5 := makeCm(5)
-	cm700 := makeCm(700)
-	otherCm5 := makeCm(5)
-
-	w := New()
-	doAppend(t, w, makeCm(1))
-	doAppend(t, w, makeCm(2))
-	doAppend(t, w, makeCm(3))
-	doAppend(t, w, makeCm(4))
-	doAppend(t, w, cm5)
-	doAppend(t, w, makeCm(6))
-	doAppend(t, w, makeCm(7))
-
-	oldSize := w.Size()
-	_, err := w.Replace(otherCm5)
-	if err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-	if w.Size() != oldSize {
-		t.Fatalf("unexpected size %d", w.Size())
-	}
-	if r, err := w.GetByCurrentId(cm5.OrgId()); err != nil || r != otherCm5 {
-		t.Fatalf("unexpected result r=%s, err=%v", r.CurId(), err)
-	}
-	if err := w.Append(cm5); err == nil {
-		t.Fatalf("expected id already there error")
-	}
-	if err := w.Remove(cm5.OrgId()); err != nil {
-		t.Fatalf("unexpected err: %v", err)
-	}
-	if err := w.Append(cm700); err != nil {
-		t.Fatalf("unexpected err: %v", err)
-	}
-	if err := w.Append(cm5); err != nil {
-		t.Fatalf("unexpected err: %v", err)
-	}
-}
-
-func TestEncodeAsYaml(t *testing.T) {
-	encoded := []byte(`apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: cm1
----
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: cm2
-`)
-	input := resmaptest_test.NewRmBuilder(t, rf).Add(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "cm1",
-			},
-		}).Add(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "cm2",
-			},
-		}).ResMap()
-	out, err := input.AsYaml()
-	if err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-	if !reflect.DeepEqual(out, encoded) {
-		t.Fatalf("%s doesn't match expected %s", out, encoded)
-	}
-}
-
-func TestGetMatchingResourcesByCurrentId(t *testing.T) {
-	r1 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "alice",
-			},
-		})
-	r2 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "bob",
-			},
-		})
-	r3 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name":      "bob",
-				"namespace": "happy",
-			},
-		})
-	r4 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name":      "charlie",
-				"namespace": "happy",
-			},
-		})
-	r5 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "Deployment",
-			"metadata": map[string]interface{}{
-				"name":      "charlie",
-				"namespace": "happy",
-			},
-		})
-
-	m := resmaptest_test.NewRmBuilder(t, rf).
-		AddR(r1).AddR(r2).AddR(r3).AddR(r4).AddR(r5).ResMap()
-
-	result := m.GetMatchingResourcesByCurrentId(
-		resid.NewResId(cmap, "alice").GvknEquals)
-	if len(result) != 1 {
-		t.Fatalf("Expected single map entry but got %v", result)
-	}
-	result = m.GetMatchingResourcesByCurrentId(
-		resid.NewResId(cmap, "bob").GvknEquals)
-	if len(result) != 2 {
-		t.Fatalf("Expected two, got %v", result)
-	}
-	result = m.GetMatchingResourcesByCurrentId(
-		resid.NewResIdWithNamespace(cmap, "bob", "system").GvknEquals)
-	if len(result) != 2 {
-		t.Fatalf("Expected two but got %v", result)
-	}
-	result = m.GetMatchingResourcesByCurrentId(
-		resid.NewResIdWithNamespace(cmap, "bob", "happy").Equals)
-	if len(result) != 1 {
-		t.Fatalf("Expected single map entry but got %v", result)
-	}
-	result = m.GetMatchingResourcesByCurrentId(
-		resid.NewResId(cmap, "charlie").GvknEquals)
-	if len(result) != 1 {
-		t.Fatalf("Expected single map entry but got %v", result)
-	}
-
-	// nolint:goconst
-	tests := []struct {
-		name    string
-		matcher IdMatcher
-		count   int
-	}{
-		{
-			"match everything",
-			func(resid.ResId) bool { return true },
-			5,
-		},
-		{
-			"match nothing",
-			func(resid.ResId) bool { return false },
-			0,
-		},
-		{
-			"name is alice",
-			func(x resid.ResId) bool { return x.Name == "alice" },
-			1,
-		},
-		{
-			"name is charlie",
-			func(x resid.ResId) bool { return x.Name == "charlie" },
-			2,
-		},
-		{
-			"name is bob",
-			func(x resid.ResId) bool { return x.Name == "bob" },
-			2,
-		},
-		{
-			"happy namespace",
-			func(x resid.ResId) bool {
-				return x.Namespace == "happy"
-			},
-			3,
-		},
-		{
-			"happy deployment",
-			func(x resid.ResId) bool {
-				return x.Namespace == "happy" &&
-					x.Gvk.Kind == "Deployment"
-			},
-			1,
-		},
-		{
-			"happy ConfigMap",
-			func(x resid.ResId) bool {
-				return x.Namespace == "happy" &&
-					x.Gvk.Kind == "ConfigMap"
-			},
-			2,
-		},
-	}
-	for _, tst := range tests {
-		result := m.GetMatchingResourcesByCurrentId(tst.matcher)
-		if len(result) != tst.count {
-			t.Fatalf("test '%s';  actual: %d, expected: %d",
-				tst.name, len(result), tst.count)
-		}
-	}
-}
-
-func TestSubsetThatCouldBeReferencedByResource(t *testing.T) {
-	r1 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "alice",
-			},
-		})
-	r2 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "bob",
-			},
-		})
-	r3 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name":      "bob",
-				"namespace": "happy",
-			},
-		})
-	r4 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "Deployment",
-			"metadata": map[string]interface{}{
-				"name":      "charlie",
-				"namespace": "happy",
-			},
-		})
-	r5 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name":      "charlie",
-				"namespace": "happy",
-			},
-		})
-	r5.AddNamePrefix("little-")
-	r6 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "Deployment",
-			"metadata": map[string]interface{}{
-				"name":      "domino",
-				"namespace": "happy",
-			},
-		})
-	r6.AddNamePrefix("little-")
-	r7 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ClusterRoleBinding",
-			"metadata": map[string]interface{}{
-				"name": "meh",
-			},
-		})
-
-	tests := map[string]struct {
-		filter   *resource.Resource
-		expected ResMap
-	}{
-		"default namespace 1": {
-			filter: r2,
-			expected: resmaptest_test.NewRmBuilder(t, rf).
-				AddR(r1).AddR(r2).AddR(r7).ResMap(),
-		},
-		"default namespace 2": {
-			filter: r1,
-			expected: resmaptest_test.NewRmBuilder(t, rf).
-				AddR(r1).AddR(r2).AddR(r7).ResMap(),
-		},
-		"happy namespace no prefix": {
-			filter: r3,
-			expected: resmaptest_test.NewRmBuilder(t, rf).
-				AddR(r3).AddR(r4).AddR(r5).AddR(r6).AddR(r7).ResMap(),
-		},
-		"happy namespace with prefix": {
-			filter: r5,
-			expected: resmaptest_test.NewRmBuilder(t, rf).
-				AddR(r3).AddR(r4).AddR(r5).AddR(r6).AddR(r7).ResMap(),
-		},
-		"cluster level": {
-			filter: r7,
-			expected: resmaptest_test.NewRmBuilder(t, rf).
-				AddR(r1).AddR(r2).AddR(r3).AddR(r4).AddR(r5).AddR(r6).AddR(r7).ResMap(),
-		},
-	}
-	m := resmaptest_test.NewRmBuilder(t, rf).
-		AddR(r1).AddR(r2).AddR(r3).AddR(r4).AddR(r5).AddR(r6).AddR(r7).ResMap()
-	for name, test := range tests {
-		test := test
-		t.Run(name, func(t *testing.T) {
-			got := m.SubsetThatCouldBeReferencedByResource(test.filter)
-			err := test.expected.ErrorIfNotEqualLists(got)
-			if err != nil {
-				test.expected.Debug("expected")
-				got.Debug("actual")
-				t.Fatalf("Expected match")
-			}
-		})
-	}
-}
-
-func addPfxSfx(r *resource.Resource, prefixes []string, suffixes []string) {
-	for _, pfx := range prefixes {
-		r.AddNamePrefix(pfx)
-	}
-
-	for _, sfx := range suffixes {
-		r.AddNameSuffix(sfx)
-	}
-}
-
-func TestSubsetThatCouldBeReferencedByResourceMultiLevel(t *testing.T) {
-	// Simulates ConfigMap and Deployment defined at level 1
-	// No prefix nor suffix added at that level
-	cm1 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "level1",
-			},
-		})
-	addPfxSfx(cm1, []string{""}, []string{""})
-	dep1 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "Deployment",
-			"metadata": map[string]interface{}{
-				"name": "level1",
-			},
-		})
-	addPfxSfx(dep1, []string{""}, []string{""})
-
-	// Simulates ConfigMap and Deployment defined at level 1
-	// and prefix added in level 2 of kustomization
-	cm2p := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "level2p",
-			},
-		})
-	addPfxSfx(cm2p, []string{"", "level2p-"}, []string{"", ""})
-
-	dep2p := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "Deployment",
-			"metadata": map[string]interface{}{
-				"name": "level2p",
-			},
-		})
-	addPfxSfx(dep2p, []string{"", "level2p-"}, []string{"", ""})
-
-	// Simulates ConfigMap and Deployment defined at level 1
-	// and suffix added in level 2 of kustomization
-	cm2s := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "level2s",
-			},
-		})
-	addPfxSfx(cm2s, []string{"", ""}, []string{"", "-level2s"})
-
-	dep2s := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "Deployment",
-			"metadata": map[string]interface{}{
-				"name": "level2s",
-			},
-		})
-	addPfxSfx(dep2s, []string{"", ""}, []string{"", "-level2s"})
-
-	// Simulates ConfigMap and Deployment defined at level 1,
-	// prefix added in levels 2 and 3 of kustomization.
-	cm3e := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "level3e",
-			},
-		})
-	addPfxSfx(cm3e, []string{"", "level2p-", "level3e-"}, []string{"", "", ""})
-
-	dep3e := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "Deployment",
-			"metadata": map[string]interface{}{
-				"name": "level3e",
-			},
-		})
-	addPfxSfx(dep3e, []string{"", "level2p-", "level3e-"}, []string{"", "", ""})
-
-	// Simulates Deployment defined at level 1, ConfigMap defined at level 2,
-	// prefix added in levels 2 and 3 of kustomization.
-	// This reproduce issue 1440.
-	cm3i := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "level3i",
-			},
-		})
-	addPfxSfx(cm3i, []string{"level2p-", "level3i-"}, []string{"", ""})
-
-	dep3i := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "Deployment",
-			"metadata": map[string]interface{}{
-				"name": "level3i",
-			},
-		})
-	addPfxSfx(dep3i, []string{"", "level2p-", "level3i-"}, []string{"", "", ""})
-
-	tests := map[string]struct {
-		filter   *resource.Resource
-		expected ResMap
-	}{
-		"level1": {
-			filter: dep1,
-			expected: resmaptest_test.NewRmBuilder(t, rf).
-				AddR(cm1).AddR(dep1).ResMap(),
-		},
-		"level2p": {
-			filter: dep2p,
-			expected: resmaptest_test.NewRmBuilder(t, rf).
-				AddR(cm2p).AddR(dep2p).ResMap(),
-		},
-		"level2s": {
-			filter: dep2s,
-			expected: resmaptest_test.NewRmBuilder(t, rf).
-				AddR(cm2s).AddR(dep2s).ResMap(),
-		},
-		"level3p": {
-			filter: dep3e,
-			expected: resmaptest_test.NewRmBuilder(t, rf).
-				AddR(cm3e).AddR(dep3e).ResMap(),
-		},
-		"level3i": {
-			filter: dep3i,
-			expected: resmaptest_test.NewRmBuilder(t, rf).
-				AddR(cm3i).AddR(dep3i).ResMap(),
-		},
-	}
-	m := resmaptest_test.NewRmBuilder(t, rf).
-		AddR(cm1).AddR(dep1).AddR(cm2s).AddR(dep2s).AddR(cm2p).AddR(dep2p).AddR(cm3e).AddR(dep3e).AddR(cm3i).AddR(dep3i).ResMap()
-	for name, test := range tests {
-		test := test
-		t.Run(name, func(t *testing.T) {
-			got := m.SubsetThatCouldBeReferencedByResource(test.filter)
-			err := test.expected.ErrorIfNotEqualLists(got)
-			if err != nil {
-				test.expected.Debug("expected")
-				got.Debug("actual")
-				t.Fatalf("Expected match")
-			}
-		})
-	}
-}
-
-func TestDeepCopy(t *testing.T) {
-	rm1 := resmaptest_test.NewRmBuilder(t, rf).Add(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "cm1",
-			},
-		}).Add(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "cm2",
-			},
-		}).ResMap()
-
-	rm2 := rm1.DeepCopy()
-
-	if &rm1 == &rm2 {
-		t.Fatal("DeepCopy returned a reference to itself instead of a copy")
-	}
-	err := rm1.ErrorIfNotEqualLists(rm1)
-	if err != nil {
-		t.Fatal(err)
-	}
-}
-
-func TestErrorIfNotEqualSets(t *testing.T) {
-	r1 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "cm1",
-			},
-		})
-	r2 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "cm2",
-			},
-		})
-	r3 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name":      "cm2",
-				"namespace": "system",
-			},
-		})
-
-	m1 := resmaptest_test.NewRmBuilder(t, rf).AddR(r1).AddR(r2).AddR(r3).ResMap()
-	if err := m1.ErrorIfNotEqualSets(m1); err != nil {
-		t.Fatalf("object should equal itself %v", err)
-	}
-
-	m2 := resmaptest_test.NewRmBuilder(t, rf).AddR(r1).ResMap()
-	if err := m1.ErrorIfNotEqualSets(m2); err == nil {
-		t.Fatalf("%v should not equal %v %v", m1, m2, err)
-	}
-
-	m3 := resmaptest_test.NewRmBuilder(t, rf).AddR(r2).ResMap()
-	if err := m2.ErrorIfNotEqualSets(m3); err == nil {
-		t.Fatalf("%v should not equal %v %v", m2, m3, err)
-	}
-
-	m3 = resmaptest_test.NewRmBuilder(t, rf).Add(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "cm1",
-			}}).ResMap()
-	if err := m2.ErrorIfNotEqualSets(m3); err != nil {
-		t.Fatalf("%v should equal %v %v", m2, m3, err)
-	}
-
-	m4 := resmaptest_test.NewRmBuilder(t, rf).AddR(r1).AddR(r2).AddR(r3).ResMap()
-	if err := m1.ErrorIfNotEqualSets(m4); err != nil {
-		t.Fatalf("expected equality between %v and %v, %v", m1, m4, err)
-	}
-
-	m4 = resmaptest_test.NewRmBuilder(t, rf).AddR(r3).AddR(r1).AddR(r2).ResMap()
-	if err := m1.ErrorIfNotEqualSets(m4); err != nil {
-		t.Fatalf("expected equality between %v and %v, %v", m1, m4, err)
-	}
-
-	m4 = m1.ShallowCopy()
-	if err := m1.ErrorIfNotEqualSets(m4); err != nil {
-		t.Fatalf("expected equality between %v and %v, %v", m1, m4, err)
-	}
-	m4 = m1.DeepCopy()
-	if err := m1.ErrorIfNotEqualSets(m4); err != nil {
-		t.Fatalf("expected equality between %v and %v, %v", m1, m4, err)
-	}
-}
-
-func TestErrorIfNotEqualLists(t *testing.T) {
-	r1 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "cm1",
-			},
-		})
-	r2 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "cm2",
-			},
-		})
-	r3 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name":      "cm2",
-				"namespace": "system",
-			},
-		})
-
-	m1 := resmaptest_test.NewRmBuilder(t, rf).AddR(r1).AddR(r2).AddR(r3).ResMap()
-	if err := m1.ErrorIfNotEqualLists(m1); err != nil {
-		t.Fatalf("object should equal itself %v", err)
-	}
-
-	m2 := resmaptest_test.NewRmBuilder(t, rf).AddR(r1).ResMap()
-	if err := m1.ErrorIfNotEqualLists(m2); err == nil {
-		t.Fatalf("%v should not equal %v %v", m1, m2, err)
-	}
-
-	m3 := resmaptest_test.NewRmBuilder(t, rf).Add(
-		map[string]interface{}{
-			"apiVersion": "v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "cm1",
-			}}).ResMap()
-	if err := m2.ErrorIfNotEqualLists(m3); err != nil {
-		t.Fatalf("%v should equal %v %v", m2, m3, err)
-	}
-
-	m4 := resmaptest_test.NewRmBuilder(t, rf).AddR(r1).AddR(r2).AddR(r3).ResMap()
-	if err := m1.ErrorIfNotEqualLists(m4); err != nil {
-		t.Fatalf("expected equality between %v and %v, %v", m1, m4, err)
-	}
-
-	m4 = resmaptest_test.NewRmBuilder(t, rf).AddR(r3).AddR(r1).AddR(r2).ResMap()
-	if err := m1.ErrorIfNotEqualLists(m4); err == nil {
-		t.Fatalf("expected inequality between %v and %v, %v", m1, m4, err)
-	}
-
-	m4 = m1.ShallowCopy()
-	if err := m1.ErrorIfNotEqualLists(m4); err != nil {
-		t.Fatalf("expected equality between %v and %v, %v", m1, m4, err)
-	}
-	m4 = m1.DeepCopy()
-	if err := m1.ErrorIfNotEqualLists(m4); err != nil {
-		t.Fatalf("expected equality between %v and %v, %v", m1, m4, err)
-	}
-}
-
-func TestAppendAll(t *testing.T) {
-	r1 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "apps/v1",
-			"kind":       "Deployment",
-			"metadata": map[string]interface{}{
-				"name": "foo-deploy1",
-			},
-		})
-	input1 := rmF.FromResource(r1)
-	r2 := rf.FromMap(
-		map[string]interface{}{
-			"apiVersion": "apps/v1",
-			"kind":       "StatefulSet",
-			"metadata": map[string]interface{}{
-				"name": "bar-stateful",
-			},
-		})
-	input2 := rmF.FromResource(r2)
-
-	expected := New()
-	if err := expected.Append(r1); err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-	if err := expected.Append(r2); err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-
-	if err := input1.AppendAll(input2); err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-	if err := expected.ErrorIfNotEqualLists(input1); err != nil {
-		input1.Debug("1")
-		expected.Debug("ex")
-		t.Fatalf("%#v doesn't equal expected %#v", input1, expected)
-	}
-	if err := input1.AppendAll(nil); err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-	if err := expected.ErrorIfNotEqualLists(input1); err != nil {
-		t.Fatalf("%#v doesn't equal expected %#v", input1, expected)
-	}
-}
-
-func makeMap1() ResMap {
-	return rmF.FromResource(rf.FromMapAndOption(
-		map[string]interface{}{
-			"apiVersion": "apps/v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "cmap",
-			},
-			"data": map[string]interface{}{
-				"a": "x",
-				"b": "y",
-			},
-		}, &types.GeneratorArgs{
-			Behavior: "create",
-		}))
-}
-
-func makeMap2(b types.GenerationBehavior) ResMap {
-	return rmF.FromResource(rf.FromMapAndOption(
-		map[string]interface{}{
-			"apiVersion": "apps/v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"name": "cmap",
-			},
-			"data": map[string]interface{}{
-				"a": "u",
-				"b": "v",
-				"c": "w",
-			},
-		}, &types.GeneratorArgs{
-			Behavior: b.String(),
-		}))
-}
-
-func TestAbsorbAll(t *testing.T) {
-	expected := rmF.FromResource(rf.FromMapAndOption(
-		map[string]interface{}{
-			"apiVersion": "apps/v1",
-			"kind":       "ConfigMap",
-			"metadata": map[string]interface{}{
-				"annotations": map[string]interface{}{},
-				"labels":      map[string]interface{}{},
-				"name":        "cmap",
-			},
-			"data": map[string]interface{}{
-				"a": "u",
-				"b": "v",
-				"c": "w",
-			},
-		}, &types.GeneratorArgs{
-			Behavior: "create",
-		}))
-	w := makeMap1()
-	if err := w.AbsorbAll(makeMap2(types.BehaviorMerge)); err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-	if err := expected.ErrorIfNotEqualLists(w); err != nil {
-		t.Fatal(err)
-	}
-	w = makeMap1()
-	if err := w.AbsorbAll(nil); err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-	if err := w.ErrorIfNotEqualLists(makeMap1()); err != nil {
-		t.Fatal(err)
-	}
-	w = makeMap1()
-	w2 := makeMap2(types.BehaviorReplace)
-	if err := w.AbsorbAll(w2); err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-	if err := w2.ErrorIfNotEqualLists(w); err != nil {
-		t.Fatal(err)
-	}
-	w = makeMap1()
-	w2 = makeMap2(types.BehaviorUnspecified)
-	err := w.AbsorbAll(w2)
-	if err == nil {
-		t.Fatalf("expected error with unspecified behavior")
-	}
-}
+// See reswrangler_test.go

api/resmap/reswrangler.go

@@ -0,0 +1,581 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package resmap
+
+import (
+	"bytes"
+	"fmt"
+	"regexp"
+
+	"github.com/pkg/errors"
+	"sigs.k8s.io/kustomize/api/resid"
+	"sigs.k8s.io/kustomize/api/resource"
+	"sigs.k8s.io/kustomize/api/types"
+	"sigs.k8s.io/yaml"
+)
+
+// resWrangler implements ResMap.
+type resWrangler struct {
+	// Resource list maintained in load (append) order.
+	// This is important for transformers, which must
+	// be performed in a specific order, and for users
+	// who for whatever reasons wish the order they
+	// specify in kustomizations to be maintained and
+	// available as an option for final YAML rendering.
+	rList []*resource.Resource
+}
+
+func newOne() *resWrangler {
+	result := &resWrangler{}
+	result.Clear()
+	return result
+}
+
+// Clear implements ResMap.
+func (m *resWrangler) Clear() {
+	m.rList = nil
+}
+
+// Size implements ResMap.
+func (m *resWrangler) Size() int {
+	return len(m.rList)
+}
+
+func (m *resWrangler) indexOfResource(other *resource.Resource) int {
+	for i, r := range m.rList {
+		if r == other {
+			return i
+		}
+	}
+	return -1
+}
+
+// Resources implements ResMap.
+func (m *resWrangler) Resources() []*resource.Resource {
+	tmp := make([]*resource.Resource, len(m.rList))
+	copy(tmp, m.rList)
+	return tmp
+}
+
+// Append implements ResMap.
+func (m *resWrangler) Append(res *resource.Resource) error {
+	id := res.CurId()
+	if r := m.GetMatchingResourcesByCurrentId(id.Equals); len(r) > 0 {
+		return fmt.Errorf(
+			"may not add resource with an already registered id: %s", id)
+	}
+	m.rList = append(m.rList, res)
+	return nil
+}
+
+// Remove implements ResMap.
+func (m *resWrangler) Remove(adios resid.ResId) error {
+	tmp := newOne()
+	for _, r := range m.rList {
+		if r.CurId() != adios {
+			tmp.Append(r)
+		}
+	}
+	if tmp.Size() != m.Size()-1 {
+		return fmt.Errorf("id %s not found in removal", adios)
+	}
+	m.rList = tmp.rList
+	return nil
+}
+
+// Replace implements ResMap.
+func (m *resWrangler) Replace(res *resource.Resource) (int, error) {
+	id := res.CurId()
+	i, err := m.GetIndexOfCurrentId(id)
+	if err != nil {
+		return -1, errors.Wrap(err, "in Replace")
+	}
+	if i < 0 {
+		return -1, fmt.Errorf("cannot find resource with id %s to replace", id)
+	}
+	m.rList[i] = res
+	return i, nil
+}
+
+// AllIds implements ResMap.
+func (m *resWrangler) AllIds() (ids []resid.ResId) {
+	ids = make([]resid.ResId, m.Size())
+	for i, r := range m.rList {
+		ids[i] = r.CurId()
+	}
+	return
+}
+
+// Debug implements ResMap.
+func (m *resWrangler) Debug(title string) {
+	fmt.Println("--------------------------- " + title)
+	firstObj := true
+	for i, r := range m.rList {
+		if firstObj {
+			firstObj = false
+		} else {
+			fmt.Println("---")
+		}
+		fmt.Printf("# %d  %s\n", i, r.OrgId())
+		blob, err := yaml.Marshal(r.Map())
+		if err != nil {
+			panic(err)
+		}
+		fmt.Println(string(blob))
+	}
+}
+
+type IdMatcher func(resid.ResId) bool
+
+// GetByIndex implements ResMap.
+func (m *resWrangler) GetByIndex(i int) *resource.Resource {
+	if i < 0 || i >= m.Size() {
+		return nil
+	}
+	return m.rList[i]
+}
+
+// GetIndexOfCurrentId implements ResMap.
+func (m *resWrangler) GetIndexOfCurrentId(id resid.ResId) (int, error) {
+	count := 0
+	result := -1
+	for i, r := range m.rList {
+		if id.Equals(r.CurId()) {
+			count++
+			result = i
+		}
+	}
+	if count > 1 {
+		return -1, fmt.Errorf("id matched %d resources", count)
+	}
+	return result, nil
+}
+
+type IdFromResource func(r *resource.Resource) resid.ResId
+
+func GetOriginalId(r *resource.Resource) resid.ResId { return r.OrgId() }
+func GetCurrentId(r *resource.Resource) resid.ResId  { return r.CurId() }
+
+// GetMatchingResourcesByCurrentId implements ResMap.
+func (m *resWrangler) GetMatchingResourcesByCurrentId(
+	matches IdMatcher) []*resource.Resource {
+	return m.filteredById(matches, GetCurrentId)
+}
+
+// GetMatchingResourcesByOriginalId implements ResMap.
+func (m *resWrangler) GetMatchingResourcesByOriginalId(
+	matches IdMatcher) []*resource.Resource {
+	return m.filteredById(matches, GetOriginalId)
+}
+
+func (m *resWrangler) filteredById(
+	matches IdMatcher, idGetter IdFromResource) []*resource.Resource {
+	var result []*resource.Resource
+	for _, r := range m.rList {
+		if matches(idGetter(r)) {
+			result = append(result, r)
+		}
+	}
+	return result
+}
+
+// GetByCurrentId implements ResMap.
+func (m *resWrangler) GetByCurrentId(
+	id resid.ResId) (*resource.Resource, error) {
+	return demandOneMatch(m.GetMatchingResourcesByCurrentId, id, "Current")
+}
+
+// GetByOriginalId implements ResMap.
+func (m *resWrangler) GetByOriginalId(
+	id resid.ResId) (*resource.Resource, error) {
+	return demandOneMatch(m.GetMatchingResourcesByOriginalId, id, "Original")
+}
+
+// GetById implements ResMap.
+func (m *resWrangler) GetById(
+	id resid.ResId) (*resource.Resource, error) {
+	match, err1 := m.GetByOriginalId(id)
+	if err1 == nil {
+		return match, nil
+	}
+	match, err2 := m.GetByCurrentId(id)
+	if err2 == nil {
+		return match, nil
+	}
+	return nil, fmt.Errorf(
+		"%s; %s; failed to find unique target for patch %s",
+		err1.Error(), err2.Error(), id.GvknString())
+}
+
+type resFinder func(IdMatcher) []*resource.Resource
+
+func demandOneMatch(
+	f resFinder, id resid.ResId, s string) (*resource.Resource, error) {
+	r := f(id.Equals)
+	if len(r) == 1 {
+		return r[0], nil
+	}
+	if len(r) > 1 {
+		return nil, fmt.Errorf("multiple matches for %sId %s", s, id)
+	}
+	return nil, fmt.Errorf("no matches for %sId %s", s, id)
+}
+
+// GroupedByCurrentNamespace implements ResMap.GroupByCurrentNamespace
+func (m *resWrangler) GroupedByCurrentNamespace() map[string][]*resource.Resource {
+	items := m.groupedByCurrentNamespace()
+	delete(items, resid.TotallyNotANamespace)
+	return items
+}
+
+// NonNamespaceable implements ResMap.NonNamespaceable
+func (m *resWrangler) NonNamespaceable() []*resource.Resource {
+	return m.groupedByCurrentNamespace()[resid.TotallyNotANamespace]
+}
+
+func (m *resWrangler) groupedByCurrentNamespace() map[string][]*resource.Resource {
+	byNamespace := make(map[string][]*resource.Resource)
+	for _, res := range m.rList {
+		namespace := res.CurId().EffectiveNamespace()
+		if _, found := byNamespace[namespace]; !found {
+			byNamespace[namespace] = []*resource.Resource{}
+		}
+		byNamespace[namespace] = append(byNamespace[namespace], res)
+	}
+	return byNamespace
+}
+
+// GroupedByNamespace implements ResMap.GroupByOrginalNamespace
+func (m *resWrangler) GroupedByOriginalNamespace() map[string][]*resource.Resource {
+	items := m.groupedByOriginalNamespace()
+	delete(items, resid.TotallyNotANamespace)
+	return items
+}
+
+func (m *resWrangler) groupedByOriginalNamespace() map[string][]*resource.Resource {
+	byNamespace := make(map[string][]*resource.Resource)
+	for _, res := range m.rList {
+		namespace := res.OrgId().EffectiveNamespace()
+		if _, found := byNamespace[namespace]; !found {
+			byNamespace[namespace] = []*resource.Resource{}
+		}
+		byNamespace[namespace] = append(byNamespace[namespace], res)
+	}
+	return byNamespace
+}
+
+// AsYaml implements ResMap.
+func (m *resWrangler) AsYaml() ([]byte, error) {
+	firstObj := true
+	var b []byte
+	buf := bytes.NewBuffer(b)
+	for _, res := range m.Resources() {
+		out, err := yaml.Marshal(res.Map())
+		if err != nil {
+			return nil, err
+		}
+		if firstObj {
+			firstObj = false
+		} else {
+			if _, err = buf.WriteString("---\n"); err != nil {
+				return nil, err
+			}
+		}
+		if _, err = buf.Write(out); err != nil {
+			return nil, err
+		}
+	}
+	return buf.Bytes(), nil
+}
+
+// ErrorIfNotEqualSets implements ResMap.
+func (m *resWrangler) ErrorIfNotEqualSets(other ResMap) error {
+	m2, ok := other.(*resWrangler)
+	if !ok {
+		panic("bad cast")
+	}
+	if m.Size() != m2.Size() {
+		return fmt.Errorf(
+			"lists have different number of entries: %#v doesn't equal %#v",
+			m.rList, m2.rList)
+	}
+	seen := make(map[int]bool)
+	for _, r1 := range m.rList {
+		id := r1.CurId()
+		others := m2.GetMatchingResourcesByCurrentId(id.Equals)
+		if len(others) == 0 {
+			return fmt.Errorf(
+				"id in self missing from other; id: %s", id)
+		}
+		if len(others) > 1 {
+			return fmt.Errorf(
+				"id in self matches %d in other; id: %s", len(others), id)
+		}
+		r2 := others[0]
+		if !r1.KunstructEqual(r2) {
+			return fmt.Errorf(
+				"kunstruct not equal: \n -- %s,\n -- %s\n\n--\n%#v\n------\n%#v\n",
+				r1, r2, r1, r2)
+		}
+		seen[m2.indexOfResource(r2)] = true
+	}
+	if len(seen) != m.Size() {
+		return fmt.Errorf("counting problem %d != %d", len(seen), m.Size())
+	}
+	return nil
+}
+
+// ErrorIfNotEqualList implements ResMap.
+func (m *resWrangler) ErrorIfNotEqualLists(other ResMap) error {
+	m2, ok := other.(*resWrangler)
+	if !ok {
+		panic("bad cast")
+	}
+	if m.Size() != m2.Size() {
+		return fmt.Errorf(
+			"lists have different number of entries: %#v doesn't equal %#v",
+			m.rList, m2.rList)
+	}
+	for i, r1 := range m.rList {
+		r2 := m2.rList[i]
+		if !r1.Equals(r2) {
+			return fmt.Errorf(
+				"Item i=%d differs:\n  n1 = %s\n  n2 = %s\n  o1 = %s\n  o2 = %s\n",
+				i, r1.OrgId(), r2.OrgId(), r1, r2)
+		}
+	}
+	return nil
+}
+
+type resCopier func(r *resource.Resource) *resource.Resource
+
+// ShallowCopy implements ResMap.
+func (m *resWrangler) ShallowCopy() ResMap {
+	return m.makeCopy(
+		func(r *resource.Resource) *resource.Resource {
+			return r
+		})
+}
+
+// DeepCopy implements ResMap.
+func (m *resWrangler) DeepCopy() ResMap {
+	return m.makeCopy(
+		func(r *resource.Resource) *resource.Resource {
+			return r.DeepCopy()
+		})
+}
+
+// makeCopy copies the ResMap.
+func (m *resWrangler) makeCopy(copier resCopier) ResMap {
+	result := &resWrangler{}
+	result.rList = make([]*resource.Resource, m.Size())
+	for i, r := range m.rList {
+		result.rList[i] = copier(r)
+	}
+	return result
+}
+
+// SubsetThatCouldBeReferencedByResource implements ResMap.
+func (m *resWrangler) SubsetThatCouldBeReferencedByResource(
+	inputRes *resource.Resource) ResMap {
+	result := newOne()
+	inputId := inputRes.CurId()
+	isInputIdNamespaceable := inputId.IsNamespaceableKind()
+	subjectNamespaces := getNamespacesForRoleBinding(inputRes)
+	for _, r := range m.Resources() {
+		// Need to match more accuratly both at the time of selection and transformation.
+		// OutmostPrefixSuffixEquals is not accurate enough since it is only using
+		// the outer most suffix and the last prefix. Use PrefixedSuffixesEquals instead.
+		resId := r.CurId()
+		if !isInputIdNamespaceable || !resId.IsNamespaceableKind() || resId.IsNsEquals(inputId) ||
+			isRoleBindingNamespace(&subjectNamespaces, r.GetNamespace()) {
+			result.append(r)
+		}
+	}
+	return result
+}
+
+// isRoleBindingNamespace returns true is the namespace `ns` is in role binding
+// namespaces `m`
+func isRoleBindingNamespace(m *map[string]bool, ns string) bool {
+	return (*m)[ns]
+}
+
+// getNamespacesForRoleBinding returns referenced ServiceAccount namespaces if the inputRes is
+// a RoleBinding
+func getNamespacesForRoleBinding(inputRes *resource.Resource) map[string]bool {
+	res := make(map[string]bool)
+	if inputRes.GetKind() != "RoleBinding" {
+		return res
+	}
+	subjects, err := inputRes.GetSlice("subjects")
+	if err != nil || subjects == nil {
+		return res
+	}
+
+	for _, s := range subjects {
+		subject := s.(map[string]interface{})
+		if subject["namespace"] == nil || subject["kind"] == nil ||
+			subject["kind"].(string) != "ServiceAccount" {
+			continue
+		}
+		res[subject["namespace"].(string)] = true
+	}
+
+	return res
+}
+
+func (m *resWrangler) append(res *resource.Resource) {
+	m.rList = append(m.rList, res)
+}
+
+// AppendAll implements ResMap.
+func (m *resWrangler) AppendAll(other ResMap) error {
+	if other == nil {
+		return nil
+	}
+	for _, res := range other.Resources() {
+		if err := m.Append(res); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// AbsorbAll implements ResMap.
+func (m *resWrangler) AbsorbAll(other ResMap) error {
+	if other == nil {
+		return nil
+	}
+	for _, r := range other.Resources() {
+		err := m.appendReplaceOrMerge(r)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (m *resWrangler) appendReplaceOrMerge(
+	res *resource.Resource) error {
+	id := res.CurId()
+	matches := m.GetMatchingResourcesByOriginalId(id.Equals)
+	if len(matches) == 0 {
+		matches = m.GetMatchingResourcesByCurrentId(id.Equals)
+	}
+	switch len(matches) {
+	case 0:
+		switch res.Behavior() {
+		case types.BehaviorMerge, types.BehaviorReplace:
+			return fmt.Errorf(
+				"id %#v does not exist; cannot merge or replace", id)
+		default:
+			// presumably types.BehaviorCreate
+			err := m.Append(res)
+			if err != nil {
+				return err
+			}
+		}
+	case 1:
+		old := matches[0]
+		if old == nil {
+			return fmt.Errorf("id lookup failure")
+		}
+		index := m.indexOfResource(old)
+		if index < 0 {
+			return fmt.Errorf("indexing problem")
+		}
+		switch res.Behavior() {
+		case types.BehaviorReplace:
+			res.Replace(old)
+		case types.BehaviorMerge:
+			res.Merge(old)
+		default:
+			return fmt.Errorf(
+				"id %#v exists; behavior must be merge or replace", id)
+		}
+		i, err := m.Replace(res)
+		if err != nil {
+			return err
+		}
+		if i != index {
+			return fmt.Errorf("unexpected index in replacement")
+		}
+	default:
+		return fmt.Errorf(
+			"found multiple objects %v that could accept merge of %v",
+			matches, id)
+	}
+	return nil
+}
+
+func anchorRegex(pattern string) string {
+	if pattern == "" {
+		return pattern
+	}
+	return "^" + pattern + "$"
+}
+
+// Select returns a list of resources that
+// are selected by a Selector
+func (m *resWrangler) Select(s types.Selector) ([]*resource.Resource, error) {
+	ns := regexp.MustCompile(anchorRegex(s.Namespace))
+	nm := regexp.MustCompile(anchorRegex(s.Name))
+	var result []*resource.Resource
+	for _, r := range m.Resources() {
+		curId := r.CurId()
+		orgId := r.OrgId()
+
+		// matches the namespace when namespace is not empty in the selector
+		// It first tries to match with the original namespace
+		// then matches with the current namespace
+		if s.Namespace != "" {
+			matched := ns.MatchString(orgId.EffectiveNamespace())
+			if !matched {
+				matched = ns.MatchString(curId.EffectiveNamespace())
+				if !matched {
+					continue
+				}
+			}
+		}
+
+		// matches the name when name is not empty in the selector
+		// It first tries to match with the original name
+		// then matches with the current name
+		if s.Name != "" {
+			matched := nm.MatchString(orgId.Name)
+			if !matched {
+				matched = nm.MatchString(curId.Name)
+				if !matched {
+					continue
+				}
+			}
+		}
+
+		// matches the GVK
+		if !r.GetGvk().IsSelected(&s.Gvk) {
+			continue
+		}
+
+		// matches the label selector
+		matched, err := r.MatchesLabelSelector(s.LabelSelector)
+		if err != nil {
+			return nil, err
+		}
+		if !matched {
+			continue
+		}
+
+		// matches the annotation selector
+		matched, err = r.MatchesAnnotationSelector(s.AnnotationSelector)
+		if err != nil {
+			return nil, err
+		}
+		if !matched {
+			continue
+		}
+		result = append(result, r)
+	}
+	return result, nil
+}

api/resmap/reswrangler_test.go

@@ -0,0 +1,734 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package resmap_test
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+	"testing"
+
+	"sigs.k8s.io/kustomize/api/k8sdeps/kunstruct"
+	"sigs.k8s.io/kustomize/api/resid"
+	. "sigs.k8s.io/kustomize/api/resmap"
+	"sigs.k8s.io/kustomize/api/resource"
+	resmaptest_test "sigs.k8s.io/kustomize/api/testutils/resmaptest"
+	"sigs.k8s.io/kustomize/api/types"
+)
+
+var rf = resource.NewFactory(
+	kunstruct.NewKunstructuredFactoryImpl())
+var rmF = NewFactory(rf, nil)
+
+func doAppend(t *testing.T, w ResMap, r *resource.Resource) {
+	err := w.Append(r)
+	if err != nil {
+		t.Fatalf("append error: %v", err)
+	}
+}
+func doRemove(t *testing.T, w ResMap, id resid.ResId) {
+	err := w.Remove(id)
+	if err != nil {
+		t.Fatalf("remove error: %v", err)
+	}
+}
+
+// Make a resource with a predictable name.
+func makeCm(i int) *resource.Resource {
+	return rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name": fmt.Sprintf("cm%03d", i),
+			},
+		})
+}
+
+// Maintain the class invariant that no two
+// resources can have the same CurId().
+func TestAppendRejectsDuplicateResId(t *testing.T) {
+	w := New()
+	if err := w.Append(makeCm(1)); err != nil {
+		t.Fatalf("append error: %v", err)
+	}
+	err := w.Append(makeCm(1))
+	if err == nil {
+		t.Fatalf("expected append error")
+	}
+	if !strings.Contains(
+		err.Error(),
+		"may not add resource with an already registered id") {
+		t.Fatalf("unexpected error: %v", err)
+	}
+}
+
+func TestAppendRemove(t *testing.T) {
+	w1 := New()
+	doAppend(t, w1, makeCm(1))
+	doAppend(t, w1, makeCm(2))
+	doAppend(t, w1, makeCm(3))
+	doAppend(t, w1, makeCm(4))
+	doAppend(t, w1, makeCm(5))
+	doAppend(t, w1, makeCm(6))
+	doAppend(t, w1, makeCm(7))
+	doRemove(t, w1, makeCm(1).OrgId())
+	doRemove(t, w1, makeCm(3).OrgId())
+	doRemove(t, w1, makeCm(5).OrgId())
+	doRemove(t, w1, makeCm(7).OrgId())
+
+	w2 := New()
+	doAppend(t, w2, makeCm(2))
+	doAppend(t, w2, makeCm(4))
+	doAppend(t, w2, makeCm(6))
+	if !reflect.DeepEqual(w1, w1) {
+		w1.Debug("w1")
+		w2.Debug("w2")
+		t.Fatalf("mismatch")
+	}
+
+	err := w2.Append(makeCm(6))
+	if err == nil {
+		t.Fatalf("expected error")
+	}
+}
+
+func TestRemove(t *testing.T) {
+	w := New()
+	r := makeCm(1)
+	err := w.Remove(r.OrgId())
+	if err == nil {
+		t.Fatalf("expected error")
+	}
+	err = w.Append(r)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	err = w.Remove(r.OrgId())
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	err = w.Remove(r.OrgId())
+	if err == nil {
+		t.Fatalf("expected error")
+	}
+}
+
+func TestReplace(t *testing.T) {
+	cm5 := makeCm(5)
+	cm700 := makeCm(700)
+	otherCm5 := makeCm(5)
+
+	w := New()
+	doAppend(t, w, makeCm(1))
+	doAppend(t, w, makeCm(2))
+	doAppend(t, w, makeCm(3))
+	doAppend(t, w, makeCm(4))
+	doAppend(t, w, cm5)
+	doAppend(t, w, makeCm(6))
+	doAppend(t, w, makeCm(7))
+
+	oldSize := w.Size()
+	_, err := w.Replace(otherCm5)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if w.Size() != oldSize {
+		t.Fatalf("unexpected size %d", w.Size())
+	}
+	if r, err := w.GetByCurrentId(cm5.OrgId()); err != nil || r != otherCm5 {
+		t.Fatalf("unexpected result r=%s, err=%v", r.CurId(), err)
+	}
+	if err := w.Append(cm5); err == nil {
+		t.Fatalf("expected id already there error")
+	}
+	if err := w.Remove(cm5.OrgId()); err != nil {
+		t.Fatalf("unexpected err: %v", err)
+	}
+	if err := w.Append(cm700); err != nil {
+		t.Fatalf("unexpected err: %v", err)
+	}
+	if err := w.Append(cm5); err != nil {
+		t.Fatalf("unexpected err: %v", err)
+	}
+}
+
+func TestEncodeAsYaml(t *testing.T) {
+	encoded := []byte(`apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: cm1
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: cm2
+`)
+	input := resmaptest_test.NewRmBuilder(t, rf).Add(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name": "cm1",
+			},
+		}).Add(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name": "cm2",
+			},
+		}).ResMap()
+	out, err := input.AsYaml()
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if !reflect.DeepEqual(out, encoded) {
+		t.Fatalf("%s doesn't match expected %s", out, encoded)
+	}
+}
+
+func TestGetMatchingResourcesByCurrentId(t *testing.T) {
+	r1 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name": "alice",
+			},
+		})
+	r2 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name": "bob",
+			},
+		})
+	r3 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name":      "bob",
+				"namespace": "happy",
+			},
+		})
+	r4 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name":      "charlie",
+				"namespace": "happy",
+			},
+		})
+	r5 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "Deployment",
+			"metadata": map[string]interface{}{
+				"name":      "charlie",
+				"namespace": "happy",
+			},
+		})
+
+	m := resmaptest_test.NewRmBuilder(t, rf).
+		AddR(r1).AddR(r2).AddR(r3).AddR(r4).AddR(r5).ResMap()
+
+	result := m.GetMatchingResourcesByCurrentId(
+		resid.NewResId(cmap, "alice").GvknEquals)
+	if len(result) != 1 {
+		t.Fatalf("Expected single map entry but got %v", result)
+	}
+	result = m.GetMatchingResourcesByCurrentId(
+		resid.NewResId(cmap, "bob").GvknEquals)
+	if len(result) != 2 {
+		t.Fatalf("Expected two, got %v", result)
+	}
+	result = m.GetMatchingResourcesByCurrentId(
+		resid.NewResIdWithNamespace(cmap, "bob", "system").GvknEquals)
+	if len(result) != 2 {
+		t.Fatalf("Expected two but got %v", result)
+	}
+	result = m.GetMatchingResourcesByCurrentId(
+		resid.NewResIdWithNamespace(cmap, "bob", "happy").Equals)
+	if len(result) != 1 {
+		t.Fatalf("Expected single map entry but got %v", result)
+	}
+	result = m.GetMatchingResourcesByCurrentId(
+		resid.NewResId(cmap, "charlie").GvknEquals)
+	if len(result) != 1 {
+		t.Fatalf("Expected single map entry but got %v", result)
+	}
+
+	// nolint:goconst
+	tests := []struct {
+		name    string
+		matcher IdMatcher
+		count   int
+	}{
+		{
+			"match everything",
+			func(resid.ResId) bool { return true },
+			5,
+		},
+		{
+			"match nothing",
+			func(resid.ResId) bool { return false },
+			0,
+		},
+		{
+			"name is alice",
+			func(x resid.ResId) bool { return x.Name == "alice" },
+			1,
+		},
+		{
+			"name is charlie",
+			func(x resid.ResId) bool { return x.Name == "charlie" },
+			2,
+		},
+		{
+			"name is bob",
+			func(x resid.ResId) bool { return x.Name == "bob" },
+			2,
+		},
+		{
+			"happy namespace",
+			func(x resid.ResId) bool {
+				return x.Namespace == "happy"
+			},
+			3,
+		},
+		{
+			"happy deployment",
+			func(x resid.ResId) bool {
+				return x.Namespace == "happy" &&
+					x.Gvk.Kind == "Deployment"
+			},
+			1,
+		},
+		{
+			"happy ConfigMap",
+			func(x resid.ResId) bool {
+				return x.Namespace == "happy" &&
+					x.Gvk.Kind == "ConfigMap"
+			},
+			2,
+		},
+	}
+	for _, tst := range tests {
+		result := m.GetMatchingResourcesByCurrentId(tst.matcher)
+		if len(result) != tst.count {
+			t.Fatalf("test '%s';  actual: %d, expected: %d",
+				tst.name, len(result), tst.count)
+		}
+	}
+}
+
+func TestSubsetThatCouldBeReferencedByResource(t *testing.T) {
+	r1 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name": "alice",
+			},
+		})
+	r2 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name": "bob",
+			},
+		})
+	r3 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name":      "bob",
+				"namespace": "happy",
+			},
+		})
+	r4 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "Deployment",
+			"metadata": map[string]interface{}{
+				"name":      "charlie",
+				"namespace": "happy",
+			},
+		})
+	r5 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name":      "charlie",
+				"namespace": "happy",
+			},
+		})
+	r5.AddNamePrefix("little-")
+	r6 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "Deployment",
+			"metadata": map[string]interface{}{
+				"name":      "domino",
+				"namespace": "happy",
+			},
+		})
+	r6.AddNamePrefix("little-")
+	r7 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ClusterRoleBinding",
+			"metadata": map[string]interface{}{
+				"name": "meh",
+			},
+		})
+
+	tests := map[string]struct {
+		filter   *resource.Resource
+		expected ResMap
+	}{
+		"default namespace 1": {
+			filter: r2,
+			expected: resmaptest_test.NewRmBuilder(t, rf).
+				AddR(r1).AddR(r2).AddR(r7).ResMap(),
+		},
+		"default namespace 2": {
+			filter: r1,
+			expected: resmaptest_test.NewRmBuilder(t, rf).
+				AddR(r1).AddR(r2).AddR(r7).ResMap(),
+		},
+		"happy namespace no prefix": {
+			filter: r3,
+			expected: resmaptest_test.NewRmBuilder(t, rf).
+				AddR(r3).AddR(r4).AddR(r5).AddR(r6).AddR(r7).ResMap(),
+		},
+		"happy namespace with prefix": {
+			filter: r5,
+			expected: resmaptest_test.NewRmBuilder(t, rf).
+				AddR(r3).AddR(r4).AddR(r5).AddR(r6).AddR(r7).ResMap(),
+		},
+		"cluster level": {
+			filter: r7,
+			expected: resmaptest_test.NewRmBuilder(t, rf).
+				AddR(r1).AddR(r2).AddR(r3).AddR(r4).AddR(r5).AddR(r6).AddR(r7).ResMap(),
+		},
+	}
+	m := resmaptest_test.NewRmBuilder(t, rf).
+		AddR(r1).AddR(r2).AddR(r3).AddR(r4).AddR(r5).AddR(r6).AddR(r7).ResMap()
+	for name, test := range tests {
+		test := test
+		t.Run(name, func(t *testing.T) {
+			got := m.SubsetThatCouldBeReferencedByResource(test.filter)
+			err := test.expected.ErrorIfNotEqualLists(got)
+			if err != nil {
+				test.expected.Debug("expected")
+				got.Debug("actual")
+				t.Fatalf("Expected match")
+			}
+		})
+	}
+}
+
+func TestDeepCopy(t *testing.T) {
+	rm1 := resmaptest_test.NewRmBuilder(t, rf).Add(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name": "cm1",
+			},
+		}).Add(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name": "cm2",
+			},
+		}).ResMap()
+
+	rm2 := rm1.DeepCopy()
+
+	if &rm1 == &rm2 {
+		t.Fatal("DeepCopy returned a reference to itself instead of a copy")
+	}
+	err := rm1.ErrorIfNotEqualLists(rm1)
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestErrorIfNotEqualSets(t *testing.T) {
+	r1 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name": "cm1",
+			},
+		})
+	r2 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name": "cm2",
+			},
+		})
+	r3 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name":      "cm2",
+				"namespace": "system",
+			},
+		})
+
+	m1 := resmaptest_test.NewRmBuilder(t, rf).AddR(r1).AddR(r2).AddR(r3).ResMap()
+	if err := m1.ErrorIfNotEqualSets(m1); err != nil {
+		t.Fatalf("object should equal itself %v", err)
+	}
+
+	m2 := resmaptest_test.NewRmBuilder(t, rf).AddR(r1).ResMap()
+	if err := m1.ErrorIfNotEqualSets(m2); err == nil {
+		t.Fatalf("%v should not equal %v %v", m1, m2, err)
+	}
+
+	m3 := resmaptest_test.NewRmBuilder(t, rf).AddR(r2).ResMap()
+	if err := m2.ErrorIfNotEqualSets(m3); err == nil {
+		t.Fatalf("%v should not equal %v %v", m2, m3, err)
+	}
+
+	m3 = resmaptest_test.NewRmBuilder(t, rf).Add(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name": "cm1",
+			}}).ResMap()
+	if err := m2.ErrorIfNotEqualSets(m3); err != nil {
+		t.Fatalf("%v should equal %v %v", m2, m3, err)
+	}
+
+	m4 := resmaptest_test.NewRmBuilder(t, rf).AddR(r1).AddR(r2).AddR(r3).ResMap()
+	if err := m1.ErrorIfNotEqualSets(m4); err != nil {
+		t.Fatalf("expected equality between %v and %v, %v", m1, m4, err)
+	}
+
+	m4 = resmaptest_test.NewRmBuilder(t, rf).AddR(r3).AddR(r1).AddR(r2).ResMap()
+	if err := m1.ErrorIfNotEqualSets(m4); err != nil {
+		t.Fatalf("expected equality between %v and %v, %v", m1, m4, err)
+	}
+
+	m4 = m1.ShallowCopy()
+	if err := m1.ErrorIfNotEqualSets(m4); err != nil {
+		t.Fatalf("expected equality between %v and %v, %v", m1, m4, err)
+	}
+	m4 = m1.DeepCopy()
+	if err := m1.ErrorIfNotEqualSets(m4); err != nil {
+		t.Fatalf("expected equality between %v and %v, %v", m1, m4, err)
+	}
+}
+
+func TestErrorIfNotEqualLists(t *testing.T) {
+	r1 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name": "cm1",
+			},
+		})
+	r2 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name": "cm2",
+			},
+		})
+	r3 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name":      "cm2",
+				"namespace": "system",
+			},
+		})
+
+	m1 := resmaptest_test.NewRmBuilder(t, rf).AddR(r1).AddR(r2).AddR(r3).ResMap()
+	if err := m1.ErrorIfNotEqualLists(m1); err != nil {
+		t.Fatalf("object should equal itself %v", err)
+	}
+
+	m2 := resmaptest_test.NewRmBuilder(t, rf).AddR(r1).ResMap()
+	if err := m1.ErrorIfNotEqualLists(m2); err == nil {
+		t.Fatalf("%v should not equal %v %v", m1, m2, err)
+	}
+
+	m3 := resmaptest_test.NewRmBuilder(t, rf).Add(
+		map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name": "cm1",
+			}}).ResMap()
+	if err := m2.ErrorIfNotEqualLists(m3); err != nil {
+		t.Fatalf("%v should equal %v %v", m2, m3, err)
+	}
+
+	m4 := resmaptest_test.NewRmBuilder(t, rf).AddR(r1).AddR(r2).AddR(r3).ResMap()
+	if err := m1.ErrorIfNotEqualLists(m4); err != nil {
+		t.Fatalf("expected equality between %v and %v, %v", m1, m4, err)
+	}
+
+	m4 = resmaptest_test.NewRmBuilder(t, rf).AddR(r3).AddR(r1).AddR(r2).ResMap()
+	if err := m1.ErrorIfNotEqualLists(m4); err == nil {
+		t.Fatalf("expected inequality between %v and %v, %v", m1, m4, err)
+	}
+
+	m4 = m1.ShallowCopy()
+	if err := m1.ErrorIfNotEqualLists(m4); err != nil {
+		t.Fatalf("expected equality between %v and %v, %v", m1, m4, err)
+	}
+	m4 = m1.DeepCopy()
+	if err := m1.ErrorIfNotEqualLists(m4); err != nil {
+		t.Fatalf("expected equality between %v and %v, %v", m1, m4, err)
+	}
+}
+
+func TestAppendAll(t *testing.T) {
+	r1 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "apps/v1",
+			"kind":       "Deployment",
+			"metadata": map[string]interface{}{
+				"name": "foo-deploy1",
+			},
+		})
+	input1 := rmF.FromResource(r1)
+	r2 := rf.FromMap(
+		map[string]interface{}{
+			"apiVersion": "apps/v1",
+			"kind":       "StatefulSet",
+			"metadata": map[string]interface{}{
+				"name": "bar-stateful",
+			},
+		})
+	input2 := rmF.FromResource(r2)
+
+	expected := New()
+	if err := expected.Append(r1); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if err := expected.Append(r2); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	if err := input1.AppendAll(input2); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if err := expected.ErrorIfNotEqualLists(input1); err != nil {
+		input1.Debug("1")
+		expected.Debug("ex")
+		t.Fatalf("%#v doesn't equal expected %#v", input1, expected)
+	}
+	if err := input1.AppendAll(nil); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if err := expected.ErrorIfNotEqualLists(input1); err != nil {
+		t.Fatalf("%#v doesn't equal expected %#v", input1, expected)
+	}
+}
+
+func makeMap1() ResMap {
+	return rmF.FromResource(rf.FromMapAndOption(
+		map[string]interface{}{
+			"apiVersion": "apps/v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name": "cmap",
+			},
+			"data": map[string]interface{}{
+				"a": "x",
+				"b": "y",
+			},
+		}, &types.GeneratorArgs{
+			Behavior: "create",
+		}))
+}
+
+func makeMap2(b types.GenerationBehavior) ResMap {
+	return rmF.FromResource(rf.FromMapAndOption(
+		map[string]interface{}{
+			"apiVersion": "apps/v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"name": "cmap",
+			},
+			"data": map[string]interface{}{
+				"a": "u",
+				"b": "v",
+				"c": "w",
+			},
+		}, &types.GeneratorArgs{
+			Behavior: b.String(),
+		}))
+}
+
+func TestAbsorbAll(t *testing.T) {
+	expected := rmF.FromResource(rf.FromMapAndOption(
+		map[string]interface{}{
+			"apiVersion": "apps/v1",
+			"kind":       "ConfigMap",
+			"metadata": map[string]interface{}{
+				"annotations": map[string]interface{}{},
+				"labels":      map[string]interface{}{},
+				"name":        "cmap",
+			},
+			"data": map[string]interface{}{
+				"a": "u",
+				"b": "v",
+				"c": "w",
+			},
+		}, &types.GeneratorArgs{
+			Behavior: "create",
+		}))
+	w := makeMap1()
+	if err := w.AbsorbAll(makeMap2(types.BehaviorMerge)); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if err := expected.ErrorIfNotEqualLists(w); err != nil {
+		t.Fatal(err)
+	}
+	w = makeMap1()
+	if err := w.AbsorbAll(nil); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if err := w.ErrorIfNotEqualLists(makeMap1()); err != nil {
+		t.Fatal(err)
+	}
+	w = makeMap1()
+	w2 := makeMap2(types.BehaviorReplace)
+	if err := w.AbsorbAll(w2); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if err := w2.ErrorIfNotEqualLists(w); err != nil {
+		t.Fatal(err)
+	}
+	w = makeMap1()
+	w2 = makeMap2(types.BehaviorUnspecified)
+	err := w.AbsorbAll(w2)
+	if err == nil {
+		t.Fatalf("expected error with unspecified behavior")
+	}
+}

api/resmap/selector_test.go

@@ -164,6 +164,18 @@ func TestFindPatchTargets(t *testing.T) {
 			},
 			count: 2,
 		},
+		{
+			target: types.Selector{
+				Namespace: "NotMatched",
+			},
+			count: 0,
+		},
+		{
+			target: types.Selector{
+				Namespace: "ns1",
+			},
+			count: 1,
+		},
 	}
 	for _, testcase := range testcases {
 		actual, err := rm.Select(testcase.target)

api/resource/resource.go

@@ -14,55 +14,9 @@ import (
 	"sigs.k8s.io/yaml"
 )
 
-// Resource is a representation of a Kubernetes Resource Model object paired
-// with metadata used by kustomize.
-//
-// At time of writing Resource is changing from being based on an object
-// sitting behind
-//
-//     sigs.k8s.io/kustomize/api/ifc.Unstructured
-//
-// to being based on an instance of
-//
-//    sigs.k8s.io/kustomize/kyaml/yaml.RNode
-//
-// Ultimately, use of the Resource struct in kustomize should be entirely
-// replaced by instances of RNode for direct use in kyaml, with all metadata
-// stored directly in the RNodes as short-lived annotations, to be deleted
-// before final output as part of a final filtration step.  Using annotations
-// will allow pipelined KRM Config Functions to share metadata that would
-// otherwise be hidden in kustomize-only structures.
-//
-// ifc.Unstructured is an interface hiding an instance of
-// 	  sigs.k8s.io/kustomize/api/k8sdeps/kunstruct.UnstructAdapter
-// which in turn adapts an instance of
-//    k8s.io/apimachinery/pkg/apis/meta/v1/unstructured
-// to the ifc.Unstructured interface.  This latter code handles
-// mutations in the old code.
-//
-// The rule in kustomize development has been
-//                           api/
-//                 k8sdeps/ ifc/ krusty/ theRest/
-//
-//   1) Depend on k8s.io/ only via sigs.k8s.io/kustomize/api/k8sdeps.
-//
-//   2) Instances created in k8sdeps/ can only be injected into theRest/
-//      behind interfaces defined in ifc/, arranged by a small bit of code
-//      in krusty/.  Nothing in theRest/ can import k8sdeps/.
-//
-// This was to allow for importing kustomize code into kubectl, which also
-// depends on k8s.io/apimachinery, albeit via a strange, old arrangement
-// predating Go modules.  The idea was to copy the k8sdeps/ tree into kubectl
-// via a large PR, and depend on the rest via vendoring (and a small copy of
-// krusty/ code).  Over 2019, however, kubectl underwent large code changes
-// including a switch to Go modules, and an attempt to extract it from the
-// k8s repo, and this made large kustomize integration PRs hard to get through
-// code review.
-//
-// The new plan is to eliminate k8sdeps/ entirely, along with its k8s.io/
-// dependence, switch to kyaml, and thus allow kustomize to be imported into
-// kubectl via normal Go module imports.
-//
+// Resource is a representation of a Kubernetes Resource Model (KRM) object
+// paired with metadata used by kustomize.
+// For more history, see sigs.k8s.io/kustomize/api/ifc.Unstructured
 type Resource struct {
 	kunStr       ifc.Kunstructured
 	originalName string
@@ -75,7 +29,7 @@ type Resource struct {
 }
 
 func (r *Resource) ResetPrimaryData(incoming *Resource) {
-	r.kunStr = incoming.kunStr.Copy()
+	r.kunStr = incoming.Copy()
 }
 
 func (r *Resource) GetAnnotations() map[string]string {
@@ -86,26 +40,14 @@ func (r *Resource) Copy() ifc.Kunstructured {
 	return r.kunStr.Copy()
 }
 
-func (r *Resource) GetBool(p string) (bool, error) {
-	return r.kunStr.GetBool(p)
-}
-
 func (r *Resource) GetFieldValue(f string) (interface{}, error) {
 	return r.kunStr.GetFieldValue(f)
 }
 
-func (r *Resource) GetFloat64(p string) (float64, error) {
-	return r.kunStr.GetFloat64(p)
-}
-
 func (r *Resource) GetGvk() resid.Gvk {
 	return r.kunStr.GetGvk()
 }
 
-func (r *Resource) GetInt64(p string) (int64, error) {
-	return r.kunStr.GetInt64(p)
-}
-
 func (r *Resource) GetKind() string {
 	return r.kunStr.GetKind()
 }
@@ -114,10 +56,6 @@ func (r *Resource) GetLabels() map[string]string {
 	return r.kunStr.GetLabels()
 }
 
-func (r *Resource) GetMap(p string) (map[string]interface{}, error) {
-	return r.kunStr.GetMap(p)
-}
-
 func (r *Resource) GetName() string {
 	return r.kunStr.GetName()
 }
@@ -130,12 +68,8 @@ func (r *Resource) GetString(p string) (string, error) {
 	return r.kunStr.GetString(p)
 }
 
-func (r *Resource) GetStringMap(p string) (map[string]string, error) {
-	return r.kunStr.GetStringMap(p)
-}
-
-func (r *Resource) GetStringSlice(p string) ([]string, error) {
-	return r.kunStr.GetStringSlice(p)
+func (r *Resource) IsEmpty() bool {
+	return len(r.kunStr.Map()) == 0
 }
 
 func (r *Resource) Map() map[string]interface{} {
@@ -154,10 +88,6 @@ func (r *Resource) MatchesAnnotationSelector(selector string) (bool, error) {
 	return r.kunStr.MatchesAnnotationSelector(selector)
 }
 
-func (r *Resource) Patch(other ifc.Kunstructured) error {
-	return r.kunStr.Patch(other)
-}
-
 func (r *Resource) SetAnnotations(m map[string]string) {
 	r.kunStr.SetAnnotations(m)
 }
@@ -170,10 +100,6 @@ func (r *Resource) SetLabels(m map[string]string) {
 	r.kunStr.SetLabels(m)
 }
 
-func (r *Resource) SetMap(m map[string]interface{}) {
-	r.kunStr.SetMap(m)
-}
-
 func (r *Resource) SetName(n string) {
 	r.kunStr.SetName(n)
 }
@@ -205,7 +131,7 @@ type ResCtxMatcher func(ResCtx) bool
 // DeepCopy returns a new copy of resource
 func (r *Resource) DeepCopy() *Resource {
 	rc := &Resource{
-		kunStr: r.kunStr.Copy(),
+		kunStr: r.Copy(),
 	}
 	rc.copyOtherFields(r)
 	return rc
@@ -213,11 +139,10 @@ func (r *Resource) DeepCopy() *Resource {
 
 // Replace performs replace with other resource.
 func (r *Resource) Replace(other *Resource) {
-	r.kunStr.SetLabels(mergeStringMaps(other.kunStr.GetLabels(), r.kunStr.GetLabels()))
-	r.kunStr.SetAnnotations(
-		mergeStringMaps(other.kunStr.GetAnnotations(), r.kunStr.GetAnnotations()))
-	r.kunStr.SetName(other.GetName())
-	r.kunStr.SetNamespace(other.GetNamespace())
+	r.SetLabels(mergeStringMaps(other.GetLabels(), r.GetLabels()))
+	r.SetAnnotations(mergeStringMaps(other.GetAnnotations(), r.GetAnnotations()))
+	r.SetName(other.GetName())
+	r.SetNamespace(other.GetNamespace())
 	r.copyOtherFields(other)
 }
 
@@ -258,7 +183,7 @@ func (r *Resource) KunstructEqual(o *Resource) bool {
 // Merge performs merge with other resource.
 func (r *Resource) Merge(other *Resource) {
 	r.Replace(other)
-	mergeConfigmap(r.kunStr.Map(), other.Map(), r.Map())
+	mergeConfigmap(r.Map(), other.Map(), r.Map())
 }
 
 func (r *Resource) copyRefBy() []resid.ResId {
@@ -356,12 +281,6 @@ func (r *Resource) PrefixesSuffixesEquals(o ResCtx) bool {
 	return sameEndingSubarray(r.GetNamePrefixes(), o.GetNamePrefixes()) && sameEndingSubarray(r.GetNameSuffixes(), o.GetNameSuffixes())
 }
 
-// This is used to compute if a referrer could potentially be impacted
-// by the change of name of a referral.
-func (r *Resource) InSameKustomizeCtx(rctxm ResCtxMatcher) bool {
-	return rctxm(r)
-}
-
 func (r *Resource) GetOriginalName() string {
 	return r.originalName
 }
@@ -384,7 +303,7 @@ func (r *Resource) setOriginalNs(n string) *Resource {
 
 // String returns resource as JSON.
 func (r *Resource) String() string {
-	bs, err := r.kunStr.MarshalJSON()
+	bs, err := r.MarshalJSON()
 	if err != nil {
 		return "<" + err.Error() + ">"
 	}
@@ -394,7 +313,7 @@ func (r *Resource) String() string {
 // AsYAML returns the resource in Yaml form.
 // Easier to read than JSON.
 func (r *Resource) AsYAML() ([]byte, error) {
-	json, err := r.kunStr.MarshalJSON()
+	json, err := r.MarshalJSON()
 	if err != nil {
 		return nil, err
 	}
@@ -419,7 +338,7 @@ func (r *Resource) NeedHashSuffix() bool {
 
 // GetNamespace returns the namespace the resource thinks it's in.
 func (r *Resource) GetNamespace() string {
-	namespace, _ := r.kunStr.GetString("metadata.namespace")
+	namespace, _ := r.GetString("metadata.namespace")
 	// if err, namespace is empty, so no need to check.
 	return namespace
 }
@@ -429,7 +348,7 @@ func (r *Resource) GetNamespace() string {
 // TODO: compute this once and save it in the resource.
 func (r *Resource) OrgId() resid.ResId {
 	return resid.NewResIdWithNamespace(
-		r.kunStr.GetGvk(), r.GetOriginalName(), r.GetOriginalNs())
+		r.GetGvk(), r.GetOriginalName(), r.GetOriginalNs())
 }
 
 // CurId returns a ResId for the resource using the
@@ -437,7 +356,7 @@ func (r *Resource) OrgId() resid.ResId {
 // This should be unique in any ResMap.
 func (r *Resource) CurId() resid.ResId {
 	return resid.NewResIdWithNamespace(
-		r.kunStr.GetGvk(), r.kunStr.GetName(), r.GetNamespace())
+		r.GetGvk(), r.GetName(), r.GetNamespace())
 }
 
 // GetRefBy returns the ResIds that referred to current resource

api/testutils/kusttest/harness.go

@@ -16,7 +16,7 @@ import (
 	"sigs.k8s.io/kustomize/api/types"
 )
 
-// Harness manages a kustomize environment for tests.
+// Harness manages a test environment.
 type Harness struct {
 	t    *testing.T
 	fSys filesys.FileSystem
@@ -72,15 +72,12 @@ func (th Harness) MakeDefaultOptions() krusty.Options {
 
 // This has no impact on Builtin plugins, as they are always enabled.
 func (th Harness) MakeOptionsPluginsDisabled() krusty.Options {
-	return krusty.Options{
-		LoadRestrictions: types.LoadRestrictionsRootOnly,
-		PluginConfig:     konfig.DisabledPluginConfig(),
-	}
+	return *krusty.MakeDefaultOptions()
 }
 
 // Enables use of non-builtin plugins.
 func (th Harness) MakeOptionsPluginsEnabled() krusty.Options {
-	c, err := konfig.EnabledPluginConfig(types.BploLoadFromFileSys)
+	pc, err := konfig.EnabledPluginConfig(types.BploLoadFromFileSys)
 	if err != nil {
 		if strings.Contains(err.Error(), "unable to find plugin root") {
 			th.t.Log(
@@ -89,10 +86,9 @@ func (th Harness) MakeOptionsPluginsEnabled() krusty.Options {
 		}
 		th.t.Fatal(err)
 	}
-	return krusty.Options{
-		LoadRestrictions: types.LoadRestrictionsRootOnly,
-		PluginConfig:     c,
-	}
+	o := *krusty.MakeDefaultOptions()
+	o.PluginConfig = pc
+	return o
 }
 
 // Run, failing on error.

api/testutils/kusttest/harnessenhanced.go

@@ -8,7 +8,7 @@ import (
 
 	"sigs.k8s.io/kustomize/api/filesys"
 	"sigs.k8s.io/kustomize/api/ifc"
-	"sigs.k8s.io/kustomize/api/internal/k8sdeps/transformer"
+	"sigs.k8s.io/kustomize/api/internal/k8sdeps/merge"
 	pLdr "sigs.k8s.io/kustomize/api/internal/plugins/loader"
 	"sigs.k8s.io/kustomize/api/k8sdeps/kunstruct"
 	"sigs.k8s.io/kustomize/api/konfig"
@@ -46,16 +46,17 @@ func MakeEnhancedHarness(t *testing.T) *HarnessEnhanced {
 	if err != nil {
 		t.Fatal(err)
 	}
-
-	rf := resmap.NewFactory(
-		resource.NewFactory(kunstruct.NewKunstructuredFactoryImpl()),
-		transformer.NewFactoryImpl())
+	resourceFactory := resource.NewFactory(
+		kunstruct.NewKunstructuredFactoryImpl())
+	resmapFactory := resmap.NewFactory(
+		resourceFactory,
+		merge.NewMerginator(resourceFactory))
 
 	result := &HarnessEnhanced{
 		Harness: MakeHarness(t),
 		pte:     pte,
-		rf:      rf,
-		pl:      pLdr.NewLoader(pc, rf)}
+		rf:      resmapFactory,
+		pl:      pLdr.NewLoader(pc, resmapFactory)}
 
 	// Point the file loader to the root ('/') of the in-memory file system.
 	result.ResetLoaderRoot(filesys.Separator)

api/transform/mutatefield.go

@@ -1,77 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package transform
-
-import (
-	"fmt"
-	"log"
-	"strings"
-)
-
-type mutateFunc func(interface{}) (interface{}, error)
-
-func MutateField(
-	m map[string]interface{},
-	pathToField []string,
-	createIfNotPresent bool,
-	fns ...mutateFunc) error {
-	if len(pathToField) == 0 {
-		return nil
-	}
-
-	firstPathSegment, isArray := getFirstPathSegment(pathToField)
-
-	_, found := m[firstPathSegment]
-	if !found {
-		if !createIfNotPresent || isArray {
-			return nil
-		}
-		m[firstPathSegment] = map[string]interface{}{}
-	}
-
-	if len(pathToField) == 1 {
-		var err error
-		for _, fn := range fns {
-			m[firstPathSegment], err = fn(m[firstPathSegment])
-			if err != nil {
-				return err
-			}
-		}
-		return nil
-	}
-
-	v := m[firstPathSegment]
-	newPathToField := pathToField[1:]
-	switch typedV := v.(type) {
-	case nil:
-		log.Printf(
-			"nil value at `%s` ignored in mutation attempt",
-			strings.Join(pathToField, "."))
-		return nil
-	case map[string]interface{}:
-		return MutateField(typedV, newPathToField, createIfNotPresent, fns...)
-	case []interface{}:
-		for i := range typedV {
-			item := typedV[i]
-			typedItem, ok := item.(map[string]interface{})
-			if !ok {
-				return fmt.Errorf("%#v is expected to be %T", item, typedItem)
-			}
-			err := MutateField(typedItem, newPathToField, createIfNotPresent, fns...)
-			if err != nil {
-				return err
-			}
-		}
-		return nil
-	default:
-		return fmt.Errorf("%#v is not expected to be a primitive type", typedV)
-	}
-}
-
-func getFirstPathSegment(pathToField []string) (string, bool) {
-	if strings.HasSuffix(pathToField[0], "[]") {
-		return pathToField[0][:len(pathToField[0])-2], true
-	}
-	return pathToField[0], false
-}

api/transform/mutatefield_test.go

@@ -1,157 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package transform_test
-
-import (
-	"fmt"
-	"testing"
-
-	"sigs.k8s.io/kustomize/api/ifc"
-	"sigs.k8s.io/kustomize/api/k8sdeps/kunstruct"
-	. "sigs.k8s.io/kustomize/api/transform"
-)
-
-type noopMutator struct {
-	wasCalled     bool
-	errorToReturn error
-}
-
-var errExpected = fmt.Errorf("oops")
-
-const originalValue = "tomato"
-const newValue = "notThe" + originalValue
-
-func (m *noopMutator) mutate(_ interface{}) (interface{}, error) {
-	m.wasCalled = true
-	return newValue, m.errorToReturn
-}
-
-func makeTestDeployment() ifc.Kunstructured {
-	factory := kunstruct.NewKunstructuredFactoryImpl()
-	return factory.FromMap(
-		map[string]interface{}{
-			"group":      "apps",
-			"apiVersion": "v1",
-			"kind":       "Deployment",
-			"metadata": map[string]interface{}{
-				"name": originalValue,
-			},
-			"spec": map[string]interface{}{
-				"template": map[string]interface{}{
-					"env": []interface{}{
-						map[string]interface{}{
-							"name":  "HELLO",
-							"value": "hi there",
-						},
-						map[string]interface{}{
-							"name":  "GOODBYE",
-							"value": "adios!",
-						},
-					},
-					"metadata": map[string]interface{}{
-						"labels": map[string]interface{}{
-							"vegetable": originalValue,
-						},
-					},
-					"spec": map[string]interface{}{
-						"containers": []interface{}{
-							map[string]interface{}{
-								"name":  "tangerine",
-								"image": originalValue,
-							},
-						},
-					},
-				},
-			},
-		})
-}
-
-func getFieldValue(t *testing.T, obj ifc.Kunstructured, fieldName string) string {
-	v, err := obj.GetString(fieldName)
-	if err != nil {
-		t.Fatalf("unexpected field error: %v", err)
-	}
-	return v
-}
-
-func TestNoPath(t *testing.T) {
-	obj := makeTestDeployment()
-	m := &noopMutator{}
-	err := MutateField(
-		obj.Map(), []string{}, false, m.mutate)
-	if m.wasCalled {
-		t.Fatalf("mutator should not have been called.")
-	}
-	if err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-func TestHappyPath(t *testing.T) {
-	obj := makeTestDeployment()
-	v := getFieldValue(t, obj, "metadata.name")
-	if v != originalValue {
-		t.Fatalf("unexpected original value: %v", v)
-	}
-	v = getFieldValue(t, obj, "spec.template.metadata.labels.vegetable")
-	if v != originalValue {
-		t.Fatalf("unexpected original value: %v", v)
-	}
-
-	m := &noopMutator{}
-	err := MutateField(
-		obj.Map(), []string{"metadata", "name"}, false, m.mutate)
-	if !m.wasCalled {
-		t.Fatalf("mutator should have been called.")
-	}
-	if err != nil {
-		t.Fatalf("unexpected mutate error: %v", err)
-	}
-	v = getFieldValue(t, obj, "metadata.name")
-	if v != newValue {
-		t.Fatalf("unexpected new value: %v", v)
-	}
-
-	m = &noopMutator{}
-	err = MutateField(
-		obj.Map(), []string{"spec", "template", "metadata", "labels", "vegetable"}, false, m.mutate)
-	if !m.wasCalled {
-		t.Fatalf("mutator should have been called.")
-	}
-	if err != nil {
-		t.Fatalf("unexpected mutate error: %v", err)
-	}
-	v = getFieldValue(t, obj, "spec.template.metadata.labels.vegetable")
-	if v != newValue {
-		t.Fatalf("unexpected new value: %v", v)
-	}
-}
-
-func TestWithError(t *testing.T) {
-	obj := makeTestDeployment()
-	m := noopMutator{errorToReturn: errExpected}
-	err := MutateField(
-		obj.Map(), []string{"metadata", "name"}, false, m.mutate)
-	if !m.wasCalled {
-		t.Fatalf("mutator was not called!")
-	}
-	if err != errExpected {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-func TestWithNil(t *testing.T) {
-	obj := makeTestDeployment()
-	foo := obj.Map()["spec"]
-	foo = foo.(map[string]interface{})["template"]
-	foo = foo.(map[string]interface{})["metadata"]
-	foo.(map[string]interface{})["labels"] = nil
-
-	m := &noopMutator{}
-	err := MutateField(
-		obj.Map(), []string{"spec", "template", "metadata", "labels", "vegetable"}, false, m.mutate)
-	if err != nil {
-		t.Fatalf("Unexpected error: %v", err)
-	}
-}

api/types/fix.go

@@ -9,14 +9,14 @@ import (
 	"sigs.k8s.io/yaml"
 )
 
-// FixKustomizationPreUnmarshalling modies the raw data
+// FixKustomizationPreUnmarshalling modifies the raw data
 // before marshalling - e.g. changes old field names to
 // new field names.
 func FixKustomizationPreUnmarshalling(data []byte) ([]byte, error) {
-	deprecateFieldsMap := map[string]string{
+	deprecatedFieldsMap := map[string]string{
 		"imageTags:": "images:",
 	}
-	for oldname, newname := range deprecateFieldsMap {
+	for oldname, newname := range deprecatedFieldsMap {
 		pattern := regexp.MustCompile(oldname)
 		data = pattern.ReplaceAll(data, []byte(newname))
 	}

api/types/kustomization.go

@@ -22,6 +22,9 @@ const (
 type Kustomization struct {
 	TypeMeta `json:",inline" yaml:",inline"`
 
+	// MetaData is a pointer to avoid marshalling empty struct
+	MetaData *ObjectMeta `json:"metadata,omitempty" yaml:"metadata,omitempty"`
+
 	//
 	// Operators - what kustomize can do.
 	//
@@ -144,6 +147,7 @@ type Kustomization struct {
 // moving content of deprecated fields to newer
 // fields.
 func (k *Kustomization) FixKustomizationPostUnmarshalling() {
+
 	if k.Kind == "" {
 		k.Kind = KustomizationKind
 	}
@@ -158,6 +162,17 @@ func (k *Kustomization) FixKustomizationPostUnmarshalling() {
 	k.Bases = nil
 }
 
+// FixKustomizationPreMarshalling fixes things
+// that should occur after the kustomization file
+// has been processed.
+func (k *Kustomization) FixKustomizationPreMarshalling() {
+	// PatchesJson6902 should be under the Patches field.
+	for _, patch := range k.PatchesJson6902 {
+		k.Patches = append(k.Patches, patch.ToPatch())
+	}
+	k.PatchesJson6902 = nil
+}
+
 func (k *Kustomization) EnforceFields() []string {
 	var errs []string
 	if k.Kind != "" && k.Kind != KustomizationKind && k.Kind != ComponentKind {

api/types/kustomization_test.go

@@ -5,9 +5,11 @@ import (
 )
 
 func fixKustomizationPostUnmarshallingCheck(k, e *Kustomization) bool {
-	return (k.Kind == e.Kind && k.APIVersion == e.APIVersion &&
-		len(k.Resources) == len(e.Resources) && k.Resources[0] == e.Resources[0] &&
-		k.Bases == nil)
+	return k.Kind == e.Kind &&
+		k.APIVersion == e.APIVersion &&
+		len(k.Resources) == len(e.Resources) &&
+		k.Resources[0] == e.Resources[0] &&
+		k.Bases == nil
 }
 
 func TestFixKustomizationPostUnmarshalling(t *testing.T) {
@@ -139,6 +141,13 @@ func TestUnmarshal(t *testing.T) {
 	y := []byte(`
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
+metadata:
+  name: kust
+  namespace: default
+  labels:
+    foo: bar
+  annotations:
+    foo: bar
 resources:
 - foo
 - bar
@@ -149,8 +158,20 @@ namePrefix: cat`)
 	if err != nil {
 		t.Fatal(err)
 	}
+	meta := ObjectMeta{
+		Name:      "kust",
+		Namespace: "default",
+		Labels: map[string]string{
+			"foo": "bar",
+		},
+		Annotations: map[string]string{
+			"foo": "bar",
+		},
+	}
 	if k.Kind != KustomizationKind || k.APIVersion != KustomizationVersion ||
-		len(k.Resources) != 2 || k.NamePrefix != "cat" || k.NameSuffix != "dog" {
+		len(k.Resources) != 2 || k.NamePrefix != "cat" || k.NameSuffix != "dog" ||
+		k.MetaData.Name != meta.Name || k.MetaData.Namespace != meta.Namespace ||
+		k.MetaData.Labels["foo"] != meta.Labels["foo"] || k.MetaData.Annotations["foo"] != meta.Annotations["foo"] {
 		t.Fatalf("wrong unmarshal result: %v", k)
 	}
 }

api/types/objectmeta.go

@@ -6,6 +6,8 @@ package types
 // ObjectMeta partially copies apimachinery/pkg/apis/meta/v1.ObjectMeta
 // No need for a direct dependence; the fields are stable.
 type ObjectMeta struct {
-	Name      string `json:"name,omitempty" yaml:"name,omitempty"`
-	Namespace string `json:"namespace,omitempty" yaml:"namespace,omitempty"`
+	Name        string            `json:"name,omitempty" yaml:"name,omitempty"`
+	Namespace   string            `json:"namespace,omitempty" yaml:"namespace,omitempty"`
+	Labels      map[string]string `json:"labels,omitempty" yaml:"labels,omitempty"`
+	Annotations map[string]string `json:"annotations,omitempty" yaml:"annotations,omitempty"`
 }

api/types/patchjson6902.go

@@ -19,3 +19,9 @@ type PatchJson6902 struct {
 	// inline patch string
 	Patch string `json:"patch,omitempty" yaml:"patch,omitempty"`
 }
+
+// ToPatch converts a PatchJson6902 to its superset Patch.
+func (patch *PatchJson6902) ToPatch() Patch {
+	selector := patch.Target.ToSelector()
+	return Patch{Path: patch.Path, Patch: patch.Patch, Target: &selector}
+}

api/types/patchtarget.go

@@ -13,3 +13,8 @@ type PatchTarget struct {
 	Namespace string `json:"namespace,omitempty" yaml:"namespace,omitempty"`
 	Name      string `json:"name" yaml:"name"`
 }
+
+// ToSelector converts a PatchTarget to a Selector.
+func (target *PatchTarget) ToSelector() Selector {
+	return Selector{Name: target.Name, Namespace: target.Namespace, Gvk: target.Gvk}
+}

api/types/pluginrestrictions.go

@@ -53,4 +53,6 @@ type FnPluginLoadingOptions struct {
 	NetworkName string
 	// list of mounts
 	Mounts []string
+	// list of env variables to pass to fn
+	Env []string
 }

cmd/config/configcobra/cmds.go

@@ -20,6 +20,7 @@ var (
 	CreateSetter       = commands.CreateSetterCommand
 	CreateSubstitution = commands.CreateSubstitutionCommand
 	DeleteSetter       = commands.DeleteSetterCommand
+	DeleteSubstitution = commands.DeleteSubstitutionCommand
 	Fmt                = commands.FmtCommand
 	Grep               = commands.GrepCommand
 	Init               = commands.InitCommand
@@ -38,7 +39,7 @@ var (
 	ExitOnError  = &commands.ExitOnError
 )
 
-// AddCommands adds the cfg, fn and live commands to kustomize.
+// AddCommands adds the cfg and fn commands to kustomize.
 func AddCommands(root *cobra.Command, name string) *cobra.Command {
 	commands.ExitOnError = true
 
@@ -47,7 +48,6 @@ func AddCommands(root *cobra.Command, name string) *cobra.Command {
 
 	root.AddCommand(GetCfg(name))
 	root.AddCommand(GetFn(name))
-	root.AddCommand(GetLive(name))
 
 	root.AddCommand(&cobra.Command{
 		Use:   "docs-merge",

cmd/config/configcobra/live.go

@@ -1,89 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package configcobra
-
-import (
-	"flag"
-
-	"github.com/spf13/cobra"
-	"k8s.io/apimachinery/pkg/api/meta"
-	"k8s.io/cli-runtime/pkg/genericclioptions"
-	"k8s.io/client-go/discovery"
-	"k8s.io/client-go/rest"
-	"k8s.io/client-go/tools/clientcmd"
-	"k8s.io/kubectl/pkg/cmd/util"
-	"sigs.k8s.io/cli-utils/cmd/apply"
-	"sigs.k8s.io/cli-utils/cmd/destroy"
-	"sigs.k8s.io/cli-utils/cmd/diff"
-	"sigs.k8s.io/cli-utils/cmd/initcmd"
-	"sigs.k8s.io/cli-utils/cmd/preview"
-	"sigs.k8s.io/cli-utils/pkg/util/factory"
-)
-
-func GetLive(name string) *cobra.Command {
-	cmd := &cobra.Command{
-		Use:   "live",
-		Short: "Commands for reading and writing resources to a cluster.",
-	}
-	ioStreams := genericclioptions.IOStreams{
-		In:     cmd.InOrStdin(),
-		Out:    cmd.OutOrStdout(),
-		ErrOut: cmd.ErrOrStderr(),
-	}
-
-	flags := cmd.PersistentFlags()
-	kubeConfigFlags := genericclioptions.NewConfigFlags(true).WithDeprecatedPasswordFlag()
-	kubeConfigFlags.AddFlags(flags)
-	userAgentKubeConfigFlags := &UserAgentKubeConfigFlags{
-		Delegate:  kubeConfigFlags,
-		UserAgent: "kustomize",
-	}
-	matchVersionKubeConfigFlags := util.NewMatchVersionFlags(
-		&factory.CachingRESTClientGetter{
-			Delegate: userAgentKubeConfigFlags,
-		},
-	)
-	matchVersionKubeConfigFlags.AddFlags(cmd.PersistentFlags())
-	cmd.PersistentFlags().AddGoFlagSet(flag.CommandLine)
-	f := util.NewFactory(matchVersionKubeConfigFlags)
-
-	applyCmd := apply.ApplyCommand(f, ioStreams)
-	_ = applyCmd.Flags().MarkHidden("no-prune")
-
-	cmd.AddCommand(
-		applyCmd,
-		initcmd.NewCmdInit(ioStreams),
-		preview.NewCmdPreview(f, ioStreams),
-		diff.NewCmdDiff(f, ioStreams),
-		destroy.NewCmdDestroy(f, ioStreams))
-	return cmd
-}
-
-type UserAgentKubeConfigFlags struct {
-	Delegate  genericclioptions.RESTClientGetter
-	UserAgent string
-}
-
-func (u *UserAgentKubeConfigFlags) ToRESTConfig() (*rest.Config, error) {
-	clientConfig, err := u.Delegate.ToRESTConfig()
-	if err != nil {
-		return nil, err
-	}
-	if u.UserAgent != "" {
-		clientConfig.UserAgent = u.UserAgent
-	}
-	return clientConfig, nil
-}
-
-func (u *UserAgentKubeConfigFlags) ToDiscoveryClient() (discovery.CachedDiscoveryInterface, error) {
-	return u.Delegate.ToDiscoveryClient()
-}
-
-func (u *UserAgentKubeConfigFlags) ToRESTMapper() (meta.RESTMapper, error) {
-	return u.Delegate.ToRESTMapper()
-}
-
-func (u *UserAgentKubeConfigFlags) ToRawKubeConfigLoader() clientcmd.ClientConfig {
-	return u.Delegate.ToRawKubeConfigLoader()
-}

cmd/config/ext/ext.go

@@ -3,12 +3,8 @@
 
 package ext
 
-import (
-	"path/filepath"
-)
-
-// GetOpenAPIFile returns the path to the file containing supplementary OpenAPI definitions.
-// Maybe be overridden to configure which file to read OpenAPI definitions from.
-var GetOpenAPIFile = func(args []string) (string, error) {
-	return filepath.Join(args[0], "Krmfile"), nil
+// KRMFileName returns the name of the KRM file. KRM file determines package
+// boundaries and contains the openapi information for a package.
+var KRMFileName = func() string {
+	return "Krmfile"
 }

cmd/config/go.mod

@@ -5,15 +5,17 @@ go 1.14
 require (
 	github.com/go-errors/errors v1.0.1
 	github.com/go-openapi/spec v0.19.5
+	github.com/google/go-cmp v0.5.2 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
 	github.com/olekukonko/tablewriter v0.0.4
 	github.com/posener/complete/v2 v2.0.1-alpha.12
 	github.com/spf13/cobra v1.0.0
 	github.com/spf13/pflag v1.0.5
-	github.com/stretchr/testify v1.4.0
+	github.com/stretchr/testify v1.6.1
+	golang.org/x/net v0.0.0-20200625001655-4c5254603344 // indirect
+	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
+	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
 	k8s.io/apimachinery v0.17.3
-	k8s.io/cli-runtime v0.17.3
-	k8s.io/client-go v0.17.3
-	k8s.io/kubectl v0.0.0-20191219154910-1528d4eea6dd
-	sigs.k8s.io/cli-utils v0.17.0
-	sigs.k8s.io/kustomize/kyaml v0.5.0
+	sigs.k8s.io/kustomize/kyaml v0.9.1
 )

cmd/config/go.sum

@@ -1,20 +1,6 @@
 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-ansiterm v0.0.0-20170929234023-d6e3b3328b78 h1:w+iIsaOQNcT7OZ575w+acHgRric5iCyQh+xv+KJ4HB8=
-github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
-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/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
-github.com/MakeNowJust/heredoc v0.0.0-20170808103936-bb23615498cd h1:sjQovDkwrZp8u+gxLtPgKGjk5hCxuy2hrRejBTA9xFU=
-github.com/MakeNowJust/heredoc v0.0.0-20170808103936-bb23615498cd/go.mod h1:64YHyfSL2R96J44Nlwm39UHepQbyR5q10x7iYa1ks2E=
 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/PuerkitoBio/goquery v1.5.0/go.mod h1:qD2PgZ9lccMbQlc7eEOjaeRlFQON7xY8kdmcsrnKqMg=
@@ -36,62 +22,33 @@ github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a h1:idn718Q4
 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/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
-github.com/blang/semver v3.5.0+incompatible/go.mod h1:kRBLl5iJ+tD4TcOOxsy/0fnwebNt5EWlYSAyrTnjyyk=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
-github.com/chai2010/gettext-go v0.0.0-20160711120539-c6fed771bfd5 h1:7aWHqerlJ41y6FOsEUvknqgXnGmJyJSbjhAWq5pO4F8=
-github.com/chai2010/gettext-go v0.0.0-20160711120539-c6fed771bfd5/go.mod h1:/iP1qXHoty45bqomnu2LM+VVyAEdWN+vtSHGlQgyxbw=
 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=
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
-github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
-github.com/coreos/bbolt v1.3.1-coreos.6/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 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/etcd v3.3.15+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
-github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
-github.com/coreos/go-oidc v2.1.0+incompatible/go.mod h1:CgnwVTmzoESiwO9qyAFEMiHoZ1nMCKZlZ9V6mm3/LKc=
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
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@@ -106,8 +63,6 @@ github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9
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@@ -161,7 +116,6 @@ github.com/go-openapi/swag v0.19.5 h1:lTz6Ys4CmqqCQmZPBlbQENR1/GucA2bzYTE12Pw4tF
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@@ -172,74 +126,48 @@ github.com/gogo/protobuf v1.2.2-0.20190723190241-65acae22fc9d h1:3PaI8p3seN09Vjb
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-k8s.io/component-base v0.0.0-20191214190519-d868452632e2/go.mod h1:wupxkh1T/oUDqyTtcIjiEfpbmIHGm8By/vqpSKC6z8c=
-k8s.io/component-base v0.17.2 h1:0XHf+cerTvL9I5Xwn9v+0jmqzGAZI7zNydv4tL6Cw6A=
-k8s.io/component-base v0.17.2/go.mod h1:zMPW3g5aH7cHJpKYQ/ZsGMcgbsA/VyhEugF3QT1awLs=
 k8s.io/gengo v0.0.0-20190128074634-0689ccc1d7d6/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
-k8s.io/gengo v0.0.0-20190822140433-26a664648505/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 v0.4.0/go.mod h1:4Bi6QPql/J/LkTDqv7R/cd3hPo4k2DG6Ptcz060Ez5I=
 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 v0.0.0-20190816220812-743ec37842bf/go.mod h1:1TqjTSzOxsLGIKfj0lK8EeCP7K1iUG65v09OM0/WG5E=
 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/kubectl v0.0.0-20191219154910-1528d4eea6dd h1:nZX5+wEqTu/EBIYjrZlFOA63z4+Zcy96lDkCZPU9a9c=
-k8s.io/kubectl v0.0.0-20191219154910-1528d4eea6dd/go.mod h1:9ehGcuUGjXVZh0qbYSB0vvofQw2JQe6c6cO0k4wu/Oo=
-k8s.io/metrics v0.0.0-20191214191643-6b1944c9f765/go.mod h1:5V7rewilItwK0cz4nomU0b3XCcees2Ka5EBYWS1HBeM=
-k8s.io/utils v0.0.0-20190801114015-581e00157fb1/go.mod h1:sZAwmy6armz5eXlNoLmJcl4F1QuKu7sr+mFQ0byX7Ew=
-k8s.io/utils v0.0.0-20191114184206-e782cd3c129f h1:GiPwtSzdP43eI1hpPCbROQCCIgCuiMMNF8YUVLF3vJo=
-k8s.io/utils v0.0.0-20191114184206-e782cd3c129f/go.mod h1:sZAwmy6armz5eXlNoLmJcl4F1QuKu7sr+mFQ0byX7Ew=
-modernc.org/cc v1.0.0/go.mod h1:1Sk4//wdnYJiUIxnW8ddKpaOJCF37yAdqYnkxUpaYxw=
-modernc.org/golex v1.0.0/go.mod h1:b/QX9oBD/LhixY6NDh+IdGv17hgB+51fET1i2kPSmvk=
-modernc.org/mathutil v1.0.0/go.mod h1:wU0vUrJsVWBZ4P6e7xtFJEhFSNsfRLJ8H458uRjg03k=
-modernc.org/strutil v1.0.0/go.mod h1:lstksw84oURvj9y3tn8lGvRxyRC1S2+g5uuIzNfIOBs=
-modernc.org/xc v1.0.0/go.mod h1:mRNCo0bvLjGhHO9WsyuKVU4q0ceiDDDoEeWDJHrNx8I=
-sigs.k8s.io/cli-utils v0.17.0 h1:iQ0nhgU8DZiRphHTErI1IHcHYp2fZaULrrFN4NF3dCc=
-sigs.k8s.io/cli-utils v0.17.0/go.mod h1:9Jqm9K2W6ShhCxsEuaz6HSRKKOXigPUx3ZfypGgxBLY=
-sigs.k8s.io/controller-runtime v0.4.0 h1:wATM6/m+3w8lj8FXNaO6Fs/rq/vqoOjO1Q116Z9NPsg=
-sigs.k8s.io/controller-runtime v0.4.0/go.mod h1:ApC79lpY3PHW9xj/w9pj+lYkLgwAAUZwfXkME1Lajns=
-sigs.k8s.io/kustomize v2.0.3+incompatible h1:JUufWFNlI44MdtnjUqVnvh29rR37PQFzPbLXqhyOyX0=
-sigs.k8s.io/kustomize v2.0.3+incompatible/go.mod h1:MkjgH3RdOWrievjo6c9T245dYlB5QeXV4WCbnt/PEpU=
-sigs.k8s.io/kustomize/kyaml v0.4.0/go.mod h1:XJL84E6sOFeNrQ7CADiemc1B0EjIxHo3OhW4o1aJYNw=
-sigs.k8s.io/kustomize/kyaml v0.5.0 h1:xufpSxgpugQxtd0aN1ZsWnr3Kj0fpAi7GN4dnEs4oPg=
-sigs.k8s.io/kustomize/kyaml v0.5.0/go.mod h1:bEzbO5pN9OvlEeCLvFHo8Pu7SA26Herc2m60UeWZBdI=
+sigs.k8s.io/kustomize/kyaml v0.9.1 h1:T7aNUraSioQp0NHJZtYjIhL/q8mqRzCiHcAKdvo09go=
+sigs.k8s.io/kustomize/kyaml v0.9.1/go.mod h1:UTm64bSWVdBUA8EQoYCxVOaBQxUdIOr5LKWxA4GNbkw=
 sigs.k8s.io/structured-merge-diff v0.0.0-20190525122527-15d366b2352e/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
-sigs.k8s.io/structured-merge-diff v0.0.0-20190817042607-6149e4549fca/go.mod h1:IIgPezJWb76P0hotTxzDbWsMYB8APh18qZnxkomBpxA=
-sigs.k8s.io/structured-merge-diff v1.0.1-0.20191108220359-b1b620dd3f06 h1:zD2IemQ4LmOcAumeiyDWXKUI2SO0NYDe3H6QGvPOVgU=
-sigs.k8s.io/structured-merge-diff v1.0.1-0.20191108220359-b1b620dd3f06/go.mod h1:/ULNhyfzRopfcjskuui0cTITekDduZ7ycKN3oUT9R18=
-sigs.k8s.io/testing_frameworks v0.1.2 h1:vK0+tvjF0BZ/RYFeZ1E6BYBwHJJXhjuZ3TdsEKH+UQM=
-sigs.k8s.io/testing_frameworks v0.1.2/go.mod h1:ToQrwSC3s8Xf/lADdZp3Mktcql9CG0UAmdJG9th5i0w=
 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/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=
-sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=
-vbom.ml/util v0.0.0-20160121211510-db5cfe13f5cc/go.mod h1:so/NYdZXCz+E3ZpW0uAoCj6uzU2+8OWDFv/HxUSs7kI=

cmd/config/internal/commands/annotate.go

@@ -4,9 +4,12 @@
 package commands
 
 import (
+	"fmt"
+	"io"
 	"strings"
 
 	"github.com/spf13/cobra"
+	"sigs.k8s.io/kustomize/cmd/config/ext"
 	"sigs.k8s.io/kustomize/cmd/config/internal/generateddocs/commands"
 	"sigs.k8s.io/kustomize/kyaml/errors"
 	"sigs.k8s.io/kustomize/kyaml/kio"
@@ -31,6 +34,8 @@ func NewAnnotateRunner(parent string) *AnnotateRunner {
 	c.Flags().StringVar(&r.Name, "name", "", "Resource name to annotate")
 	c.Flags().StringVar(&r.Namespace, "namespace", "", "Resource namespace to annotate")
 	c.Flags().StringSliceVar(&r.Values, "kv", []string{}, "annotation as KEY=VALUE")
+	c.Flags().BoolVarP(&r.RecurseSubPackages, "recurse-subpackages", "R", false,
+		"add annotations recursively in all the nested subpackages")
 	return r
 }
 
@@ -39,13 +44,14 @@ func AnnotateCommand(parent string) *cobra.Command {
 }
 
 type AnnotateRunner struct {
-	Command    *cobra.Command
-	Values     []string
-	Kind       string
-	Name       string
-	ApiVersion string
-	Namespace  string
-	Path       string
+	Command            *cobra.Command
+	Values             []string
+	Kind               string
+	Name               string
+	ApiVersion         string
+	Namespace          string
+	Path               string
+	RecurseSubPackages bool
 }
 
 func (r *AnnotateRunner) runE(c *cobra.Command, args []string) error {
@@ -55,16 +61,54 @@ func (r *AnnotateRunner) runE(c *cobra.Command, args []string) error {
 		rw := &kio.ByteReadWriter{Reader: c.InOrStdin(), Writer: c.OutOrStdout()}
 		input = []kio.Reader{rw}
 		output = []kio.Writer{rw}
-	} else {
-		rw := &kio.LocalPackageReadWriter{PackagePath: args[0], NoDeleteFiles: true}
-		input = []kio.Reader{rw}
-		output = []kio.Writer{rw}
+
+		return handleError(c, kio.Pipeline{
+			Inputs:  input,
+			Filters: []kio.Filter{r},
+			Outputs: output,
+		}.Execute())
 	}
-	return handleError(c, kio.Pipeline{
+
+	e := executeCmdOnPkgs{
+		writer:             c.OutOrStdout(),
+		needOpenAPI:        false,
+		recurseSubPackages: r.RecurseSubPackages,
+		cmdRunner:          r,
+		rootPkgPath:        args[0],
+	}
+
+	err := e.execute()
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (r *AnnotateRunner) executeCmd(w io.Writer, pkgPath string) error {
+	rw := &kio.LocalPackageReadWriter{
+		PackagePath:     pkgPath,
+		NoDeleteFiles:   true,
+		PackageFileName: ext.KRMFileName(),
+	}
+	input := []kio.Reader{rw}
+	output := []kio.Writer{rw}
+	err := kio.Pipeline{
 		Inputs:  input,
 		Filters: []kio.Filter{r},
 		Outputs: output,
-	}.Execute())
+	}.Execute()
+	if err != nil {
+		// return err if there is only package
+		if !r.RecurseSubPackages {
+			return err
+		} else {
+			// print error message and continue if there are multiple packages to annotate
+			fmt.Fprintf(w, "%s\n", err.Error())
+		}
+	} else {
+		fmt.Fprint(w, "added annotations in the package\n")
+	}
+	return nil
 }
 
 func (r *AnnotateRunner) Filter(nodes []*yaml.RNode) ([]*yaml.RNode, error) {

cmd/config/internal/commands/annotate_test.go

@@ -12,7 +12,9 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"sigs.k8s.io/kustomize/kyaml/copyutil"
 	"sigs.k8s.io/kustomize/kyaml/kio"
+	"sigs.k8s.io/kustomize/kyaml/openapi"
 )
 
 func TestAnnotateCommand(t *testing.T) {
@@ -486,3 +488,80 @@ spec:
   replicas: 3
 `
 )
+
+func TestAnnotateSubPackages(t *testing.T) {
+	var tests = []struct {
+		name        string
+		dataset     string
+		packagePath string
+		args        []string
+		expected    string
+	}{
+		{
+			name:    "annotate-recurse-subpackages",
+			dataset: "dataset-without-setters",
+			args:    []string{"--kv", "foo=bar", "-R"},
+			expected: `${baseDir}/
+added annotations in the package
+
+${baseDir}/mysql/
+added annotations in the package
+
+${baseDir}/mysql/storage/
+added annotations in the package
+`,
+		},
+		{
+			name:        "annotate-top-level-pkg-no-recurse-subpackages",
+			dataset:     "dataset-without-setters",
+			packagePath: "mysql",
+			args:        []string{"--kv", "foo=bar"},
+			expected: `${baseDir}/mysql/
+added annotations in the package
+`,
+		},
+		{
+			name:        "annotate-nested-pkg-no-recurse-subpackages",
+			dataset:     "dataset-without-setters",
+			packagePath: "mysql/storage",
+			args:        []string{"--kv", "foo=bar"},
+			expected: `${baseDir}/mysql/storage/
+added annotations in the package
+`,
+		},
+	}
+	for i := range tests {
+		test := tests[i]
+		t.Run(test.name, func(t *testing.T) {
+			// reset the openAPI afterward
+			openapi.ResetOpenAPI()
+			defer openapi.ResetOpenAPI()
+			sourceDir := filepath.Join("test", "testdata", test.dataset)
+			baseDir, err := ioutil.TempDir("", "")
+			if !assert.NoError(t, err) {
+				t.FailNow()
+			}
+			copyutil.CopyDir(sourceDir, baseDir)
+			defer os.RemoveAll(baseDir)
+			runner := NewAnnotateRunner("")
+			actual := &bytes.Buffer{}
+			runner.Command.SetOut(actual)
+			runner.Command.SetArgs(append([]string{filepath.Join(baseDir, test.packagePath)}, test.args...))
+			err = runner.Command.Execute()
+			if !assert.NoError(t, err) {
+				t.FailNow()
+			}
+
+			// normalize path format for windows
+			actualNormalized := strings.Replace(
+				strings.Replace(actual.String(), "\\", "/", -1),
+				"//", "/", -1)
+
+			expected := strings.Replace(test.expected, "${baseDir}", baseDir, -1)
+			expectedNormalized := strings.Replace(expected, "\\", "/", -1)
+			if !assert.Equal(t, expectedNormalized, actualNormalized) {
+				t.FailNow()
+			}
+		})
+	}
+}

cmd/config/internal/commands/cat.go

@@ -4,10 +4,14 @@
 package commands
 
 import (
+	"bytes"
 	"fmt"
+	"io"
 	"os"
+	"strings"
 
 	"github.com/spf13/cobra"
+	"sigs.k8s.io/kustomize/cmd/config/ext"
 	"sigs.k8s.io/kustomize/cmd/config/internal/generateddocs/commands"
 	"sigs.k8s.io/kustomize/kyaml/errors"
 	"sigs.k8s.io/kustomize/kyaml/kio"
@@ -19,15 +23,14 @@ import (
 func GetCatRunner(name string) *CatRunner {
 	r := &CatRunner{}
 	c := &cobra.Command{
-		Use:     "cat DIR...",
+		Use:     "cat DIR",
 		Short:   commands.CatShort,
 		Long:    commands.CatLong,
 		Example: commands.CatExamples,
 		RunE:    r.runE,
+		Args:    cobra.MaximumNArgs(1),
 	}
 	fixDocs(name, c)
-	c.Flags().BoolVar(&r.IncludeSubpackages, "include-subpackages", true,
-		"also print resources from subpackages.")
 	c.Flags().BoolVar(&r.Format, "format", true,
 		"format resource config yaml before printing.")
 	c.Flags().BoolVar(&r.KeepAnnotations, "annotate", false,
@@ -49,6 +52,8 @@ func GetCatRunner(name string) *CatRunner {
 		"if true, exclude non-local-config in the output.")
 	c.Flags().StringVar(&r.OutputDest, "dest", "",
 		"if specified, write output to a file rather than stdout")
+	c.Flags().BoolVarP(&r.RecurseSubPackages, "recurse-subpackages", "R", true,
+		"print resources recursively in all the nested subpackages")
 	r.Command = c
 	return r
 }
@@ -59,7 +64,6 @@ func CatCommand(name string) *cobra.Command {
 
 // CatRunner contains the run function
 type CatRunner struct {
-	IncludeSubpackages bool
 	Format             bool
 	KeepAnnotations    bool
 	WrapKind           string
@@ -71,56 +75,111 @@ type CatRunner struct {
 	IncludeLocal       bool
 	ExcludeNonLocal    bool
 	Command            *cobra.Command
+	RecurseSubPackages bool
 }
 
 func (r *CatRunner) runE(c *cobra.Command, args []string) error {
-	// if there is a function-config specified, emit it
+	var writer = c.OutOrStdout()
+	if r.OutputDest != "" {
+		o, err := os.Create(r.OutputDest)
+		if err != nil {
+			return errors.Wrap(err)
+		}
+		defer o.Close()
+		writer = o
+	}
+	if len(args) == 0 {
+		input := &kio.ByteReader{Reader: c.InOrStdin()}
+		// if there is a function-config specified, emit it
+		outputs, err := r.out(writer)
+		if err != nil {
+			return err
+		}
+		return handleError(c, kio.Pipeline{Inputs: []kio.Reader{input}, Filters: r.catFilters(), Outputs: outputs}.Execute())
+	}
+
+	out := &bytes.Buffer{}
+
+	e := executeCmdOnPkgs{
+		writer:             out,
+		needOpenAPI:        false,
+		recurseSubPackages: r.RecurseSubPackages,
+		cmdRunner:          r,
+		rootPkgPath:        args[0],
+		skipPkgPathPrint:   true,
+	}
+
+	err := e.execute()
+	if err != nil {
+		return err
+	}
+
+	res := strings.TrimSuffix(out.String(), "---")
+	fmt.Fprintf(writer, "%s", res)
+
+	return nil
+}
+
+func (r *CatRunner) executeCmd(w io.Writer, pkgPath string) error {
+	input := kio.LocalPackageReader{PackagePath: pkgPath, PackageFileName: ext.KRMFileName()}
+	out := &bytes.Buffer{}
+	outputs, err := r.out(out)
+	if err != nil {
+		return err
+	}
+	err = kio.Pipeline{
+		Inputs:  []kio.Reader{input},
+		Filters: r.catFilters(),
+		Outputs: outputs,
+	}.Execute()
+
+	if err != nil {
+		// return err if there is only package
+		if !r.RecurseSubPackages {
+			return err
+		} else {
+			// print error message and continue if there are multiple packages to annotate
+			fmt.Fprintf(w, "%s in package %q\n", err.Error(), pkgPath)
+		}
+	}
+	fmt.Fprint(w, out.String())
+	if out.String() != "" {
+		fmt.Fprint(w, "---")
+	}
+	return nil
+}
+
+func (r *CatRunner) catFilters() []kio.Filter {
+	var fltrs []kio.Filter
+	// don't include reconcilers
+	fltrs = append(fltrs, &filters.IsLocalConfig{
+		IncludeLocalConfig:    r.IncludeLocal,
+		ExcludeNonLocalConfig: r.ExcludeNonLocal,
+	})
+	if r.Format {
+		fltrs = append(fltrs, filters.FormatFilter{})
+	}
+	if r.StripComments {
+		fltrs = append(fltrs, filters.StripCommentsFilter{})
+	}
+	return fltrs
+}
+
+func (r *CatRunner) out(w io.Writer) ([]kio.Writer, error) {
+	var outputs []kio.Writer
 	var functionConfig *yaml.RNode
 	if r.FunctionConfig != "" {
 		configs, err := kio.LocalPackageReader{PackagePath: r.FunctionConfig,
 			OmitReaderAnnotations: !r.KeepAnnotations}.Read()
 		if err != nil {
-			return err
+			return outputs, err
 		}
 		if len(configs) != 1 {
-			return fmt.Errorf("expected exactly 1 functionConfig, found %d", len(configs))
+			return outputs, fmt.Errorf("expected exactly 1 functionConfig, found %d", len(configs))
 		}
 		functionConfig = configs[0]
 	}
 
-	var inputs []kio.Reader
-	for _, a := range args {
-		inputs = append(inputs, kio.LocalPackageReader{
-			PackagePath:        a,
-			IncludeSubpackages: r.IncludeSubpackages,
-		})
-	}
-	if len(inputs) == 0 {
-		inputs = append(inputs, &kio.ByteReader{Reader: c.InOrStdin()})
-	}
-	var fltr []kio.Filter
-	// don't include reconcilers
-	fltr = append(fltr, &filters.IsLocalConfig{
-		IncludeLocalConfig:    r.IncludeLocal,
-		ExcludeNonLocalConfig: r.ExcludeNonLocal,
-	})
-	if r.Format {
-		fltr = append(fltr, filters.FormatFilter{})
-	}
-	if r.StripComments {
-		fltr = append(fltr, filters.StripCommentsFilter{})
-	}
-
-	var out = c.OutOrStdout()
-	if r.OutputDest != "" {
-		o, err := os.Create(r.OutputDest)
-		if err != nil {
-			return handleError(c, errors.Wrap(err))
-		}
-		defer o.Close()
-		out = o
-	}
-
 	// remove this annotation explicitly, the ByteWriter won't clear it by
 	// default because it doesn't set it
 	clear := []string{"config.kubernetes.io/path"}
@@ -128,9 +187,8 @@ func (r *CatRunner) runE(c *cobra.Command, args []string) error {
 		clear = nil
 	}
 
-	var outputs []kio.Writer
 	outputs = append(outputs, kio.ByteWriter{
-		Writer:                out,
+		Writer:                w,
 		KeepReaderAnnotations: r.KeepAnnotations,
 		WrappingKind:          r.WrapKind,
 		WrappingAPIVersion:    r.WrapApiVersion,
@@ -139,5 +197,5 @@ func (r *CatRunner) runE(c *cobra.Command, args []string) error {
 		ClearAnnotations:      clear,
 	})
 
-	return handleError(c, kio.Pipeline{Inputs: inputs, Filters: fltr, Outputs: outputs}.Execute())
+	return outputs, nil
 }

cmd/config/internal/commands/cat_test.go

@@ -8,10 +8,13 @@ import (
 	"io/ioutil"
 	"os"
 	"path/filepath"
+	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
 	"sigs.k8s.io/kustomize/cmd/config/internal/commands"
+	"sigs.k8s.io/kustomize/kyaml/copyutil"
+	"sigs.k8s.io/kustomize/kyaml/openapi"
 )
 
 // TODO(pwittrock): write tests for reading / writing ResourceLists
@@ -168,8 +171,7 @@ metadata:
   annotations:
     app: nginx
 spec:
-  replicas: 3
-`), 0600)
+  replicas: 3`), 0600)
 	if !assert.NoError(t, err) {
 		return
 	}
@@ -362,8 +364,7 @@ metadata:
   annotations:
     app: nginx
 spec:
-  replicas: 3
-`), 0600)
+  replicas: 3`), 0600)
 	if !assert.NoError(t, err) {
 		return
 	}
@@ -477,8 +478,7 @@ metadata:
   annotations:
     app: nginx
 spec:
-  replicas: 3
-`), 0600)
+  replicas: 3`), 0600)
 	if !assert.NoError(t, err) {
 		return
 	}
@@ -540,3 +540,129 @@ spec:
 		return
 	}
 }
+
+func TestCatSubPackages(t *testing.T) {
+	var tests = []struct {
+		name        string
+		dataset     string
+		packagePath string
+		args        []string
+		expected    string
+	}{
+		{
+			name:    "cat-recurse-subpackages",
+			dataset: "dataset-without-setters",
+			expected: `
+# Copyright 2019 The Kubernetes Authors.
+# SPDX-License-Identifier: Apache-2.0
+
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mysql-deployment
+  namespace: myspace
+spec:
+  replicas: 3
+  template:
+    spec:
+      containers:
+      - name: mysql
+        image: mysql:1.7.9
+---
+# Copyright 2019 The Kubernetes Authors.
+# SPDX-License-Identifier: Apache-2.0
+
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: storage-deployment
+  namespace: myspace
+spec:
+  replicas: 4
+  template:
+    spec:
+      containers:
+      - name: storage
+        image: storage:1.7.7
+`,
+		},
+		{
+			name:        "cat-top-level-pkg-no-recurse-subpackages",
+			dataset:     "dataset-without-setters",
+			args:        []string{"-R=false"},
+			packagePath: "mysql",
+			expected: `# Copyright 2019 The Kubernetes Authors.
+# SPDX-License-Identifier: Apache-2.0
+
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mysql-deployment
+  namespace: myspace
+spec:
+  replicas: 3
+  template:
+    spec:
+      containers:
+      - name: mysql
+        image: mysql:1.7.9
+`,
+		},
+		{
+			name:        "cat-nested-pkg-no-recurse-subpackages",
+			dataset:     "dataset-without-setters",
+			packagePath: "mysql/storage",
+			args:        []string{"-R=false"},
+			expected: `# Copyright 2019 The Kubernetes Authors.
+# SPDX-License-Identifier: Apache-2.0
+
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: storage-deployment
+  namespace: myspace
+spec:
+  replicas: 4
+  template:
+    spec:
+      containers:
+      - name: storage
+        image: storage:1.7.7
+`,
+		},
+	}
+	for i := range tests {
+		test := tests[i]
+		t.Run(test.name, func(t *testing.T) {
+			// reset the openAPI afterward
+			openapi.ResetOpenAPI()
+			defer openapi.ResetOpenAPI()
+			sourceDir := filepath.Join("test", "testdata", test.dataset)
+			baseDir, err := ioutil.TempDir("", "")
+			if !assert.NoError(t, err) {
+				t.FailNow()
+			}
+			copyutil.CopyDir(sourceDir, baseDir)
+			defer os.RemoveAll(baseDir)
+			runner := commands.GetCatRunner("")
+			actual := &bytes.Buffer{}
+			runner.Command.SetOut(actual)
+			runner.Command.SetArgs(append([]string{filepath.Join(baseDir, test.packagePath)}, test.args...))
+			err = runner.Command.Execute()
+			if !assert.NoError(t, err) {
+				t.FailNow()
+			}
+
+			// normalize path format for windows
+			actualNormalized := strings.Replace(
+				strings.Replace(actual.String(), "\\", "/", -1),
+				"//", "/", -1)
+
+			expected := strings.Replace(test.expected, "${baseDir}", baseDir, -1)
+			expectedNormalized := strings.Replace(expected, "\\", "/", -1)
+			if !assert.Equal(t, expectedNormalized, actualNormalized) {
+				t.FailNow()
+			}
+		})
+	}
+}

cmd/config/internal/commands/cmdcreatesetter.go

@@ -5,7 +5,10 @@ package commands
 
 import (
 	"encoding/json"
+	"fmt"
+	"io"
 	"io/ioutil"
+	"path/filepath"
 	"strings"
 
 	"github.com/go-openapi/spec"
@@ -13,9 +16,7 @@ import (
 	"sigs.k8s.io/kustomize/cmd/config/ext"
 	"sigs.k8s.io/kustomize/cmd/config/internal/generateddocs/commands"
 	"sigs.k8s.io/kustomize/kyaml/errors"
-	"sigs.k8s.io/kustomize/kyaml/fieldmeta"
 	"sigs.k8s.io/kustomize/kyaml/kio"
-	"sigs.k8s.io/kustomize/kyaml/openapi"
 	"sigs.k8s.io/kustomize/kyaml/setters"
 	"sigs.k8s.io/kustomize/kyaml/setters2/settersutil"
 )
@@ -39,8 +40,8 @@ func NewCreateSetterRunner(parent string) *CreateSetterRunner {
 	set.Flags().StringVar(&r.Set.SetPartialField.Description, "description", "",
 		"record a description for the current setter value.")
 	set.Flags().StringVar(&r.Set.SetPartialField.Field, "field", "",
-		"name of the field to set -- e.g. --field port.  defaults to all fields match"+
-			"VALUE.  maybe be the field name, field path, or partial field path (suffix)")
+		"name of the field to set, a suffix of the path to the field, or the full"+
+			" path to the field. Default is to match all fields.")
 	set.Flags().StringVar(&r.Set.ResourceMeta.Name, "name", "",
 		"name of the Resource on which to create the setter.")
 	set.Flags().MarkHidden("name")
@@ -59,6 +60,8 @@ func NewCreateSetterRunner(parent string) *CreateSetterRunner {
 	set.Flags().StringVar(&r.SchemaPath, "schema-path", "",
 		`openAPI schema file path for setter constraints -- file content `+
 			`e.g. {"type": "string", "maxLength": 15, "enum": ["allowedValue1", "allowedValue2"]}`)
+	set.Flags().BoolVarP(&r.CreateSetter.RecurseSubPackages, "recurse-subpackages", "R", false,
+		"creates setter recursively in all the nested subpackages")
 	set.Flags().MarkHidden("version")
 	fixDocs(parent, set)
 	r.Command = set
@@ -78,7 +81,7 @@ type CreateSetterRunner struct {
 }
 
 func (r *CreateSetterRunner) runE(c *cobra.Command, args []string) error {
-	return handleError(c, r.set(c, args))
+	return handleError(c, r.createSetter(c, args))
 }
 
 func (r *CreateSetterRunner) preRunE(c *cobra.Command, args []string) error {
@@ -111,42 +114,6 @@ func (r *CreateSetterRunner) preRunE(c *cobra.Command, args []string) error {
 	}
 
 	if setterVersion == "v2" {
-		var err error
-		r.OpenAPIFile, err = ext.GetOpenAPIFile(args)
-		if err != nil {
-			return err
-		}
-
-		if err := openapi.AddSchemaFromFile(r.OpenAPIFile); err != nil {
-			return err
-		}
-
-		// check if substitution with same name exists and throw error
-		ref, err := spec.NewRef(fieldmeta.DefinitionsPrefix + fieldmeta.SubstitutionDefinitionPrefix + r.CreateSetter.Name)
-		if err != nil {
-			return err
-		}
-
-		subst, _ := openapi.Resolve(&ref)
-		// if substitution already exists with the input setter name, throw error
-		if subst != nil {
-			return errors.Errorf("substitution with name %s already exists, "+
-				"substitution and setter can't have same name", r.CreateSetter.Name)
-		}
-
-		// check if setter with same name exists and throw error
-		ref, err = spec.NewRef(fieldmeta.DefinitionsPrefix + fieldmeta.SetterDefinitionPrefix + r.CreateSetter.Name)
-		if err != nil {
-			return err
-		}
-
-		setter, _ := openapi.Resolve(&ref)
-		// if setter already exists with the input setter name, throw error
-		if setter != nil {
-			return errors.Errorf("setter with name %s already exists, "+
-				"if you want to modify it, please delete the existing setter and recreate it", r.CreateSetter.Name)
-		}
-
 		r.CreateSetter.Description = r.Set.SetPartialField.Description
 		r.CreateSetter.SetBy = r.Set.SetPartialField.SetBy
 		r.CreateSetter.Type = r.Set.SetPartialField.Type
@@ -210,9 +177,20 @@ func (r *CreateSetterRunner) processSchema() error {
 	return nil
 }
 
-func (r *CreateSetterRunner) set(c *cobra.Command, args []string) error {
+func (r *CreateSetterRunner) createSetter(c *cobra.Command, args []string) error {
 	if setterVersion == "v2" {
-		return r.CreateSetter.Create(r.OpenAPIFile, args[0])
+		e := executeCmdOnPkgs{
+			needOpenAPI:        true,
+			writer:             c.OutOrStdout(),
+			rootPkgPath:        args[0],
+			recurseSubPackages: r.CreateSetter.RecurseSubPackages,
+			cmdRunner:          r,
+		}
+		err := e.execute()
+		if err != nil {
+			return handleError(c, err)
+		}
+		return nil
 	}
 
 	rw := &kio.LocalPackageReadWriter{PackagePath: args[0]}
@@ -226,6 +204,37 @@ func (r *CreateSetterRunner) set(c *cobra.Command, args []string) error {
 	return nil
 }
 
+func (r *CreateSetterRunner) executeCmd(w io.Writer, pkgPath string) error {
+	r.CreateSetter = settersutil.SetterCreator{
+		Name:               r.CreateSetter.Name,
+		SetBy:              r.CreateSetter.SetBy,
+		Description:        r.CreateSetter.Description,
+		Type:               r.CreateSetter.Type,
+		Schema:             r.CreateSetter.Schema,
+		FieldName:          r.CreateSetter.FieldName,
+		FieldValue:         r.CreateSetter.FieldValue,
+		Required:           r.CreateSetter.Required,
+		RecurseSubPackages: r.CreateSetter.RecurseSubPackages,
+		OpenAPIFileName:    ext.KRMFileName(),
+		OpenAPIPath:        filepath.Join(pkgPath, ext.KRMFileName()),
+		ResourcesPath:      pkgPath,
+	}
+
+	err := r.CreateSetter.Create()
+	if err != nil {
+		// return err if RecurseSubPackages is false
+		if !r.CreateSetter.RecurseSubPackages {
+			return err
+		} else {
+			// print error message and continue if RecurseSubPackages is true
+			fmt.Fprintf(w, "%s\n", err.Error())
+		}
+	} else {
+		fmt.Fprintf(w, "created setter %q\n", r.CreateSetter.Name)
+	}
+	return nil
+}
+
 // schemaFromFile reads the contents from schemaPath and returns schema
 func schemaFromFile(schemaPath string) (*spec.Schema, error) {
 	sc := &spec.Schema{}

cmd/config/internal/commands/cmdcreatesetter_test.go

@@ -7,12 +7,13 @@ import (
 	"bytes"
 	"io/ioutil"
 	"os"
+	"path/filepath"
 	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"sigs.k8s.io/kustomize/cmd/config/ext"
 	"sigs.k8s.io/kustomize/cmd/config/internal/commands"
+	"sigs.k8s.io/kustomize/kyaml/copyutil"
 	"sigs.k8s.io/kustomize/kyaml/openapi"
 )
 
@@ -43,6 +44,7 @@ spec:
 apiVersion: v1alpha1
 kind: Example
 `,
+			out: `created setter "replicas"`,
 			expectedOpenAPI: `
 apiVersion: v1alpha1
 kind: Example
@@ -81,6 +83,7 @@ spec:
 apiVersion: v1alpha1
 kind: Example
 `,
+			out: `created setter "replicas"`,
 			expectedOpenAPI: `
 apiVersion: v1alpha1
 kind: Example
@@ -122,7 +125,7 @@ openAPI:
           - marker: ${my-tag-setter}
             ref: '#/definitions/io.k8s.cli.setters.my-tag-setter'
  `,
-			err: "substitution with name my-image already exists, substitution and setter can't have same name",
+			err: `substitution with name "my-image" already exists, substitution and setter can't have same name`,
 		},
 
 		{
@@ -140,7 +143,7 @@ openAPI:
           name: my-image
           value: "nginx"
  `,
-			err: "setter with name my-image already exists, if you want to modify it, please delete the existing setter and recreate it",
+			err: `setter with name "my-image" already exists, if you want to modify it, please delete the existing setter and recreate it`,
 		},
 
 		{
@@ -159,6 +162,7 @@ spec:
 apiVersion: v1alpha1
 kind: Example
 `,
+			out: `created setter "replicas"`,
 			expectedOpenAPI: `
 apiVersion: v1alpha1
 kind: Example
@@ -200,6 +204,7 @@ spec:
 apiVersion: v1alpha1
 kind: Example
 `,
+			out: `created setter replicas`,
 			expectedOpenAPI: `
 apiVersion: v1alpha1
 kind: Example
@@ -254,6 +259,7 @@ spec:
 apiVersion: v1alpha1
 kind: Example
 `,
+			out: `created setter "list"`,
 			expectedOpenAPI: `
 apiVersion: v1alpha1
 kind: Example
@@ -354,6 +360,7 @@ spec:
 apiVersion: v1alpha1
 kind: Example
 `,
+			out: `created setter replicas`,
 			expectedOpenAPI: `
 apiVersion: v1alpha1
 kind: Example
@@ -400,6 +407,7 @@ spec:
 apiVersion: v1alpha1
 kind: Example
 `,
+			out: `created setter "replicas"`,
 			expectedOpenAPI: `
 apiVersion: v1alpha1
 kind: Example
@@ -437,6 +445,7 @@ spec:
 apiVersion: v1alpha1
 kind: Example
 `,
+			out: `created setter "foo.bar"`,
 			expectedOpenAPI: `
 apiVersion: v1alpha1
 kind: Example
@@ -587,6 +596,7 @@ spec:
 apiVersion: v1alpha1
 kind: Example
 `,
+			out: `created setter "replicas"`,
 			expectedOpenAPI: `
 apiVersion: v1alpha1
 kind: Example
@@ -712,6 +722,7 @@ spec:
 apiVersion: v1alpha1
 kind: Example
 `,
+			out: `created setter "replicas"`,
 			expectedOpenAPI: `
 apiVersion: v1alpha1
 kind: Example
@@ -742,13 +753,14 @@ spec:
 			openapi.ResetOpenAPI()
 			defer openapi.ResetOpenAPI()
 
-			f, err := ioutil.TempFile("", "k8s-cli-")
+			baseDir, err := ioutil.TempDir("", "")
 			if !assert.NoError(t, err) {
 				t.FailNow()
 			}
-			defer os.Remove(f.Name())
+			defer os.RemoveAll(baseDir)
 
-			err = ioutil.WriteFile(f.Name(), []byte(test.inputOpenAPI), 0600)
+			f := filepath.Join(baseDir, "Krmfile")
+			err = ioutil.WriteFile(f, []byte(test.inputOpenAPI), 0600)
 			if !assert.NoError(t, err) {
 				t.FailNow()
 			}
@@ -768,13 +780,7 @@ spec:
 				test.args = append(test.args, "--schema-path", sch.Name())
 			}
 
-			old := ext.GetOpenAPIFile
-			defer func() { ext.GetOpenAPIFile = old }()
-			ext.GetOpenAPIFile = func(args []string) (s string, err error) {
-				return f.Name(), nil
-			}
-
-			r, err := ioutil.TempFile("", "k8s-cli-*.yaml")
+			r, err := ioutil.TempFile(baseDir, "k8s-cli-*.yaml")
 			if !assert.NoError(t, err) {
 				t.FailNow()
 			}
@@ -787,7 +793,7 @@ spec:
 			runner := commands.NewCreateSetterRunner("")
 			out := &bytes.Buffer{}
 			runner.Command.SetOut(out)
-			runner.Command.SetArgs(append([]string{r.Name()}, test.args...))
+			runner.Command.SetArgs(append([]string{baseDir}, test.args...))
 			err = runner.Command.Execute()
 			if test.err != "" {
 				if !assert.NotNil(t, err) {
@@ -801,7 +807,14 @@ spec:
 				t.FailNow()
 			}
 
-			if !assert.Equal(t, test.out, out.String()) {
+			expectedOut := strings.Replace(test.out, "${baseDir}", baseDir, -1)
+			expectedNormalized := strings.Replace(expectedOut, "\\", "/", -1)
+			// normalize path format for windows
+			actualNormalized := strings.Replace(
+				strings.Replace(out.String(), "\\", "/", -1),
+				"//", "/", -1)
+
+			if !assert.Contains(t, actualNormalized, expectedNormalized) {
 				t.FailNow()
 			}
 
@@ -815,7 +828,7 @@ spec:
 				t.FailNow()
 			}
 
-			actualOpenAPI, err := ioutil.ReadFile(f.Name())
+			actualOpenAPI, err := ioutil.ReadFile(f)
 			if !assert.NoError(t, err) {
 				t.FailNow()
 			}
@@ -827,3 +840,92 @@ spec:
 		})
 	}
 }
+
+func TestCreateSetterSubPackages(t *testing.T) {
+	var tests = []struct {
+		name        string
+		dataset     string
+		packagePath string
+		args        []string
+		expected    string
+	}{
+		{
+			name:    "create-setter-recurse-subpackages",
+			dataset: "dataset-without-setters",
+			args:    []string{"namespace", "myspace", "-R"},
+			expected: `${baseDir}/mysql/
+created setter "namespace"
+
+${baseDir}/mysql/storage/
+created setter "namespace"
+`,
+		},
+		{
+			name:        "create-setter-top-level-pkg-no-recurse-subpackages",
+			dataset:     "dataset-without-setters",
+			packagePath: "mysql",
+			args:        []string{"namespace", "myspace"},
+			expected: `${baseDir}/mysql/
+created setter "namespace"
+`,
+		},
+		{
+			name:        "create-setter-nested-pkg-no-recurse-subpackages",
+			dataset:     "dataset-without-setters",
+			packagePath: "mysql/storage",
+			args:        []string{"namespace", "myspace"},
+			expected: `${baseDir}/mysql/storage/
+created setter "namespace"
+`,
+		},
+		{
+			name:        "create-setter-already-exists",
+			dataset:     "dataset-with-setters",
+			packagePath: "mysql",
+			args:        []string{"namespace", "myspace", "-R"},
+			expected: `${baseDir}/mysql/
+setter with name "namespace" already exists, if you want to modify it, please delete the existing setter and recreate it
+
+${baseDir}/mysql/nosetters/
+created setter "namespace"
+
+${baseDir}/mysql/storage/
+setter with name "namespace" already exists, if you want to modify it, please delete the existing setter and recreate it
+`,
+		},
+	}
+	for i := range tests {
+		test := tests[i]
+		t.Run(test.name, func(t *testing.T) {
+			// reset the openAPI afterward
+			openapi.ResetOpenAPI()
+			defer openapi.ResetOpenAPI()
+			sourceDir := filepath.Join("test", "testdata", test.dataset)
+			baseDir, err := ioutil.TempDir("", "")
+			if !assert.NoError(t, err) {
+				t.FailNow()
+			}
+			copyutil.CopyDir(sourceDir, baseDir)
+			defer os.RemoveAll(baseDir)
+			runner := commands.NewCreateSetterRunner("")
+			actual := &bytes.Buffer{}
+			runner.Command.SetOut(actual)
+			runner.Command.SetArgs(append([]string{filepath.Join(baseDir, test.packagePath)}, test.args...))
+			err = runner.Command.Execute()
+			if !assert.NoError(t, err) {
+				t.FailNow()
+			}
+
+			// normalize path format for windows
+			actualNormalized := strings.Replace(
+				strings.Replace(actual.String(), "\\", "/", -1),
+				"//", "/", -1)
+
+			expected := strings.Replace(test.expected, "${baseDir}", baseDir, -1)
+			expectedNormalized := strings.Replace(expected, "\\", "/", -1)
+			if !assert.Equal(t, expectedNormalized, actualNormalized) {
+				t.FailNow()
+			}
+		})
+	}
+}

cmd/config/internal/commands/cmdcreatesubstitution.go

@@ -5,13 +5,11 @@ package commands
 
 import (
 	"fmt"
+	"io"
+	"path/filepath"
 
-	"github.com/go-openapi/spec"
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/cmd/config/ext"
-	"sigs.k8s.io/kustomize/kyaml/errors"
-	"sigs.k8s.io/kustomize/kyaml/fieldmeta"
-	"sigs.k8s.io/kustomize/kyaml/openapi"
 	"sigs.k8s.io/kustomize/kyaml/setters2/settersutil"
 )
 
@@ -19,10 +17,10 @@ import (
 func NewCreateSubstitutionRunner(parent string) *CreateSubstitutionRunner {
 	r := &CreateSubstitutionRunner{}
 	cs := &cobra.Command{
-		Use:     "create-subst DIR NAME",
-		Args:    cobra.ExactArgs(2),
-		PreRunE: r.preRunE,
-		RunE:    r.runE,
+		Use:    "create-subst DIR NAME",
+		Args:   cobra.ExactArgs(2),
+		PreRun: r.preRun,
+		RunE:   r.runE,
 	}
 	cs.Flags().StringVar(&r.CreateSubstitution.FieldName, "field", "",
 		"name of the field to set -- e.g. --field image")
@@ -30,6 +28,8 @@ func NewCreateSubstitutionRunner(parent string) *CreateSubstitutionRunner {
 		"value of the field to create substitution for -- e.g. --field-value nginx:0.1.0")
 	cs.Flags().StringVar(&r.CreateSubstitution.Pattern, "pattern", "",
 		`substitution pattern -- e.g. --pattern \${my-image-setter}:\${my-tag-setter}`)
+	cs.Flags().BoolVarP(&r.CreateSubstitution.RecurseSubPackages, "recurse-subpackages", "R", false,
+		"creates substitution recursively in all the nested subpackages")
 	_ = cs.MarkFlagRequired("pattern")
 	_ = cs.MarkFlagRequired("field-value")
 	fixDocs(parent, cs)
@@ -49,49 +49,48 @@ type CreateSubstitutionRunner struct {
 }
 
 func (r *CreateSubstitutionRunner) runE(c *cobra.Command, args []string) error {
-	return handleError(c, r.CreateSubstitution.Create(r.OpenAPIFile, args[0]))
-}
-
-func (r *CreateSubstitutionRunner) preRunE(c *cobra.Command, args []string) error {
-	var err error
-	r.CreateSubstitution.Name = args[1]
+	e := executeCmdOnPkgs{
+		needOpenAPI:        true,
+		writer:             c.OutOrStdout(),
+		rootPkgPath:        args[0],
+		recurseSubPackages: r.CreateSubstitution.RecurseSubPackages,
+		cmdRunner:          r,
+	}
+	err := e.execute()
 	if err != nil {
-		return err
-	}
-
-	r.OpenAPIFile, err = ext.GetOpenAPIFile(args)
-	if err != nil {
-		return err
-	}
-
-	if err := openapi.AddSchemaFromFile(r.OpenAPIFile); err != nil {
-		return err
-	}
-
-	// check if substitution with same name exists and throw error
-	ref, err := spec.NewRef(fieldmeta.DefinitionsPrefix + fieldmeta.SubstitutionDefinitionPrefix + r.CreateSubstitution.Name)
-	if err != nil {
-		return err
-	}
-
-	subst, _ := openapi.Resolve(&ref)
-	// if substitution already exists with the input substitution name, throw error
-	if subst != nil {
-		return errors.Errorf("substitution with name %s already exists", r.CreateSubstitution.Name)
-	}
-
-	// check if setter with same name exists and throw error
-	ref, err = spec.NewRef(fieldmeta.DefinitionsPrefix + fieldmeta.SetterDefinitionPrefix + r.CreateSubstitution.Name)
-	if err != nil {
-		return err
-	}
-
-	setter, _ := openapi.Resolve(&ref)
-	// if setter already exists with input substitution name, throw error
-	if setter != nil {
-		return errors.Errorf(fmt.Sprintf("setter with name %s already exists, "+
-			"substitution and setter can't have same name", r.CreateSubstitution.Name))
+		return handleError(c, err)
 	}
 
 	return nil
 }
+
+func (r *CreateSubstitutionRunner) executeCmd(w io.Writer, pkgPath string) error {
+	r.CreateSubstitution = settersutil.SubstitutionCreator{
+		Name:               r.CreateSubstitution.Name,
+		FieldName:          r.CreateSubstitution.FieldName,
+		FieldValue:         r.CreateSubstitution.FieldValue,
+		RecurseSubPackages: r.CreateSubstitution.RecurseSubPackages,
+		Pattern:            r.CreateSubstitution.Pattern,
+		OpenAPIFileName:    ext.KRMFileName(),
+		OpenAPIPath:        filepath.Join(pkgPath, ext.KRMFileName()),
+		ResourcesPath:      pkgPath,
+	}
+
+	err := r.CreateSubstitution.Create()
+	if err != nil {
+		// return err if RecurseSubPackages is false
+		if !r.CreateSubstitution.RecurseSubPackages {
+			return err
+		} else {
+			// print error message and continue if RecurseSubPackages is true
+			fmt.Fprintf(w, "%s\n", err.Error())
+		}
+	} else {
+		fmt.Fprintf(w, "created substitution %q\n", r.CreateSubstitution.Name)
+	}
+	return nil
+}
+
+func (r *CreateSubstitutionRunner) preRun(c *cobra.Command, args []string) {
+	r.CreateSubstitution.Name = args[1]
+}

cmd/config/internal/commands/cmdcreatesubstitution_test.go

@@ -7,12 +7,13 @@ import (
 	"bytes"
 	"io/ioutil"
 	"os"
+	"path/filepath"
 	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"sigs.k8s.io/kustomize/cmd/config/ext"
 	"sigs.k8s.io/kustomize/cmd/config/internal/commands"
+	"sigs.k8s.io/kustomize/kyaml/copyutil"
 	"sigs.k8s.io/kustomize/kyaml/openapi"
 )
 
@@ -62,6 +63,7 @@ openAPI:
           name: my-tag-setter
           value: "1.7.9"
  `,
+			out: `created substitution "my-image-subst"`,
 			expectedOpenAPI: `
 apiVersion: v1alpha1
 kind: Example
@@ -123,7 +125,7 @@ openAPI:
           - marker: ${my-tag-setter}
             ref: '#/definitions/io.k8s.cli.setters.my-tag-setter'
  `,
-			err: "substitution with name my-image already exists",
+			err: `substitution with name "my-image" already exists`,
 		},
 		{
 			name: "error if setter with same name exists",
@@ -140,7 +142,7 @@ openAPI:
           name: my-image
           value: "nginx"
  `,
-			err: "setter with name my-image already exists, substitution and setter can't have same name",
+			err: `setter with name "my-image" already exists, substitution and setter can't have same name`,
 		},
 		{
 			name: "substitution and create setters 1",
@@ -165,6 +167,7 @@ spec:
 apiVersion: v1alpha1
 kind: Example
  `,
+			out: `created substitution "my-image-subst"`,
 			expectedOpenAPI: `
 apiVersion: v1alpha1
 kind: Example
@@ -253,6 +256,7 @@ openAPI:
           - marker: ${my-tag-setter}
             ref: '#/definitions/io.k8s.cli.setters.my-tag-setter'
  `,
+			out: `created substitution "my-nested-subst"`,
 			expectedOpenAPI: `
 apiVersion: v1alpha1
 kind: Example
@@ -341,7 +345,7 @@ spec:
   substVal: prefix-1234
         	            	
  `,
-			err: "setters must have different name than the substitution: foo",
+			err: `setters must have different name than the substitution: foo`,
 		},
 	}
 	for i := range tests {
@@ -351,22 +355,18 @@ spec:
 			openapi.ResetOpenAPI()
 			defer openapi.ResetOpenAPI()
 
-			f, err := ioutil.TempFile("", "k8s-cli-")
+			baseDir, err := ioutil.TempDir("", "")
 			if !assert.NoError(t, err) {
 				t.FailNow()
 			}
-			defer os.Remove(f.Name())
-			err = ioutil.WriteFile(f.Name(), []byte(test.inputOpenAPI), 0600)
+			defer os.RemoveAll(baseDir)
+			f := filepath.Join(baseDir, "Krmfile")
+			err = ioutil.WriteFile(f, []byte(test.inputOpenAPI), 0600)
 			if !assert.NoError(t, err) {
 				t.FailNow()
 			}
-			old := ext.GetOpenAPIFile
-			defer func() { ext.GetOpenAPIFile = old }()
-			ext.GetOpenAPIFile = func(args []string) (s string, err error) {
-				return f.Name(), nil
-			}
 
-			r, err := ioutil.TempFile("", "k8s-cli-*.yaml")
+			r, err := ioutil.TempFile(baseDir, "k8s-cli-*.yaml")
 			if !assert.NoError(t, err) {
 				t.FailNow()
 			}
@@ -379,7 +379,7 @@ spec:
 			runner := commands.NewCreateSubstitutionRunner("")
 			out := &bytes.Buffer{}
 			runner.Command.SetOut(out)
-			runner.Command.SetArgs(append([]string{r.Name()}, test.args...))
+			runner.Command.SetArgs(append([]string{baseDir}, test.args...))
 			err = runner.Command.Execute()
 
 			if test.err != "" {
@@ -393,7 +393,14 @@ spec:
 				t.FailNow()
 			}
 
-			if !assert.Equal(t, test.out, out.String()) {
+			expectedOut := strings.Replace(test.out, "${baseDir}", baseDir, -1)
+			expectedNormalized := strings.Replace(expectedOut, "\\", "/", -1)
+			// normalize path format for windows
+			actualNormalized := strings.Replace(
+				strings.Replace(out.String(), "\\", "/", -1),
+				"//", "/", -1)
+
+			if !assert.Contains(t, actualNormalized, expectedNormalized) {
 				t.FailNow()
 			}
 
@@ -407,7 +414,7 @@ spec:
 				t.FailNow()
 			}
 
-			actualOpenAPI, err := ioutil.ReadFile(f.Name())
+			actualOpenAPI, err := ioutil.ReadFile(f)
 			if !assert.NoError(t, err) {
 				t.FailNow()
 			}
@@ -419,3 +426,89 @@ spec:
 		})
 	}
 }
+
+func TestCreateSubstSubPackages(t *testing.T) {
+	var tests = []struct {
+		name        string
+		dataset     string
+		packagePath string
+		args        []string
+		expected    string
+	}{
+		{
+			name:    "create-subst-recurse-subpackages",
+			dataset: "dataset-without-setters",
+			args:    []string{"image-tag", "--field-value", "mysql:1.7.9", "--pattern", "${image}:${tag}", "-R"},
+			expected: `${baseDir}/mysql/
+created substitution "image-tag"
+
+${baseDir}/mysql/storage/
+created substitution "image-tag"
+`,
+		},
+		{
+			name:        "create-subst-top-level-pkg-no-recurse-subpackages",
+			dataset:     "dataset-without-setters",
+			packagePath: "mysql",
+			args:        []string{"image-tag", "--field-value", "mysql:1.7.9", "--pattern", "${image}:${tag}"},
+			expected: `${baseDir}/mysql/
+created substitution "image-tag"`,
+		},
+		{
+			name:        "create-subst-nested-pkg-no-recurse-subpackages",
+			dataset:     "dataset-without-setters",
+			packagePath: "mysql/storage",
+			args:        []string{"image-tag", "--field-value", "storage:1.7.9", "--pattern", "${image}:${tag}"},
+			expected: `${baseDir}/mysql/storage/
+created substitution "image-tag"`,
+		},
+		{
+			name:        "create-subst-already-exists",
+			dataset:     "dataset-with-setters",
+			packagePath: "mysql",
+			args:        []string{"image-tag", "--field-value", "mysql:1.7.9", "--pattern", "${image}:${tag}", "-R"},
+			expected: `${baseDir}/mysql/
+substitution with name "image-tag" already exists
+
+${baseDir}/mysql/nosetters/
+created substitution "image-tag"
+
+${baseDir}/mysql/storage/
+created substitution "image-tag"`,
+		},
+	}
+	for i := range tests {
+		test := tests[i]
+		t.Run(test.name, func(t *testing.T) {
+			// reset the openAPI afterward
+			openapi.ResetOpenAPI()
+			defer openapi.ResetOpenAPI()
+			sourceDir := filepath.Join("test", "testdata", test.dataset)
+			baseDir, err := ioutil.TempDir("", "")
+			if !assert.NoError(t, err) {
+				t.FailNow()
+			}
+			copyutil.CopyDir(sourceDir, baseDir)
+			defer os.RemoveAll(baseDir)
+			runner := commands.NewCreateSubstitutionRunner("")
+			actual := &bytes.Buffer{}
+			runner.Command.SetOut(actual)
+			runner.Command.SetArgs(append([]string{filepath.Join(baseDir, test.packagePath)}, test.args...))
+			err = runner.Command.Execute()
+			if !assert.NoError(t, err) {
+				t.FailNow()
+			}
+
+			// normalize path format for windows
+			actualNormalized := strings.Replace(
+				strings.Replace(actual.String(), "\\", "/", -1),
+				"//", "/", -1)
+
+			expected := strings.Replace(test.expected, "${baseDir}", baseDir, -1)
+			expectedNormalized := strings.Replace(expected, "\\", "/", -1)
+			if !assert.Equal(t, strings.TrimSpace(expectedNormalized), strings.TrimSpace(actualNormalized)) {
+				t.FailNow()
+			}
+		})
+	}
+}

cmd/config/internal/commands/cmddeletesetter.go

@@ -4,10 +4,14 @@
 package commands
 
 import (
+	"fmt"
+	"io"
+	"path/filepath"
+
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/cmd/config/ext"
 	"sigs.k8s.io/kustomize/cmd/config/internal/generateddocs/commands"
-	"sigs.k8s.io/kustomize/kyaml/openapi"
+	"sigs.k8s.io/kustomize/kyaml/fieldmeta"
 	"sigs.k8s.io/kustomize/kyaml/setters2/settersutil"
 )
 
@@ -16,13 +20,15 @@ func NewDeleteSetterRunner(parent string) *DeleteSetterRunner {
 	r := &DeleteSetterRunner{}
 	c := &cobra.Command{
 		Use:     "delete-setter DIR NAME",
-		Args:    cobra.MinimumNArgs(2),
+		Args:    cobra.ExactArgs(2),
 		Short:   commands.DeleteSetterShort,
 		Long:    commands.DeleteSetterLong,
 		Example: commands.DeleteSetterExamples,
 		PreRunE: r.preRunE,
 		RunE:    r.runE,
 	}
+	c.Flags().BoolVarP(&r.RecurseSubPackages, "recurse-subpackages", "R", false,
+		"deletes setter recursively in all the nested subpackages")
 	fixDocs(parent, c)
 	r.Command = c
 
@@ -34,31 +40,58 @@ func DeleteSetterCommand(parent string) *cobra.Command {
 }
 
 type DeleteSetterRunner struct {
-	Command      *cobra.Command
-	DeleteSetter settersutil.DeleterCreator
-	OpenAPIFile  string
+	Command            *cobra.Command
+	DeleteSetter       settersutil.DeleterCreator
+	OpenAPIFile        string
+	RecurseSubPackages bool
 }
 
 func (r *DeleteSetterRunner) preRunE(c *cobra.Command, args []string) error {
-	var err error
 	r.DeleteSetter.Name = args[1]
+	r.DeleteSetter.DefinitionPrefix = fieldmeta.SetterDefinitionPrefix
 
-	r.OpenAPIFile, err = ext.GetOpenAPIFile(args)
-	if err != nil {
-		return err
-	}
-
-	if err := openapi.AddSchemaFromFile(r.OpenAPIFile); err != nil {
-		return err
-	}
+	r.OpenAPIFile = filepath.Join(args[0], ext.KRMFileName())
 
 	return nil
 }
 
 func (r *DeleteSetterRunner) runE(c *cobra.Command, args []string) error {
-	return handleError(c, r.delete(c, args))
+	e := executeCmdOnPkgs{
+		needOpenAPI:        true,
+		writer:             c.OutOrStdout(),
+		rootPkgPath:        args[0],
+		recurseSubPackages: r.RecurseSubPackages,
+		cmdRunner:          r,
+	}
+	err := e.execute()
+	if err != nil {
+		return handleError(c, err)
+	}
+	return nil
 }
 
-func (r *DeleteSetterRunner) delete(c *cobra.Command, args []string) error {
-	return r.DeleteSetter.Delete(r.OpenAPIFile, args[0])
+func (r *DeleteSetterRunner) executeCmd(w io.Writer, pkgPath string) error {
+
+	r.DeleteSetter = settersutil.DeleterCreator{
+		Name:               r.DeleteSetter.Name,
+		DefinitionPrefix:   fieldmeta.SetterDefinitionPrefix,
+		RecurseSubPackages: r.RecurseSubPackages,
+		OpenAPIFileName:    ext.KRMFileName(),
+		OpenAPIPath:        filepath.Join(pkgPath, ext.KRMFileName()),
+		ResourcesPath:      pkgPath,
+	}
+
+	err := r.DeleteSetter.Delete()
+	if err != nil {
+		// return err if RecurseSubPackages is false
+		if !r.DeleteSetter.RecurseSubPackages {
+			return err
+		} else {
+			// print error message and continue if RecurseSubPackages is true
+			fmt.Fprintf(w, "%s\n", err.Error())
+		}
+	} else {
+		fmt.Fprintf(w, "deleted setter %q\n", r.DeleteSetter.Name)
+	}
+	return nil
 }