Add patch remover

pkg/commands/edit/remove/all.go

@@ -35,6 +35,9 @@ func NewCmdRemove(
 	kustomize edit remove resource {filepath} {filepath}
 	kustomize edit remove resource {pattern}
 
+	# Removes one or more patches from the kustomization file
+	kustomize edit remove patch <filepath>
+
 	# Removes one or more commonLabels from the kustomization file
 	kustomize edit remove label {labelKey1},{labelKey2}
 
@@ -47,6 +50,7 @@ func NewCmdRemove(
 		newCmdRemoveResource(fsys),
 		newCmdRemoveLabel(fsys, ldr.Validator().MakeLabelNameValidator()),
 		newCmdRemoveAnnotation(fsys, ldr.Validator().MakeAnnotationNameValidator()),
+		newCmdRemovePatch(fsys),
 	)
 	return c
 }

pkg/commands/edit/remove/removepatch.go

@@ -0,0 +1,102 @@
+/*
+Copyright 2019 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package remove
+
+import (
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+	"log"
+	"sigs.k8s.io/kustomize/v3/pkg/commands/kustfile"
+	"sigs.k8s.io/kustomize/v3/pkg/fs"
+	"sigs.k8s.io/kustomize/v3/pkg/patch"
+	"sigs.k8s.io/kustomize/v3/pkg/pgmconfig"
+)
+
+type removePatchOptions struct {
+	patchFilePaths []string
+}
+
+// newCmdRemovePatch removes the name of a file containing a patch from the kustomization file.
+func newCmdRemovePatch(fsys fs.FileSystem) *cobra.Command {
+	var o removePatchOptions
+
+	cmd := &cobra.Command{
+		Use:   "patch",
+		Short: "Removes one or more patches from " + pgmconfig.KustomizationFileNames[0],
+		Example: `
+		remove patch {filepath}`,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			err := o.Validate(args)
+			if err != nil {
+				return err
+			}
+			err = o.Complete(cmd, args)
+			if err != nil {
+				return err
+			}
+			return o.RunRemovePatch(fsys)
+		},
+	}
+	return cmd
+}
+
+// Validate validates removePatch command.
+func (o *removePatchOptions) Validate(args []string) error {
+	if len(args) == 0 {
+		return errors.New("must specify a patch file")
+	}
+	o.patchFilePaths = args
+	return nil
+}
+
+// Complete completes removePatch command.
+func (o *removePatchOptions) Complete(cmd *cobra.Command, args []string) error {
+	return nil
+}
+
+// RunRemovePatch runs removePatch command (do real work).
+func (o *removePatchOptions) RunRemovePatch(fSys fs.FileSystem) error {
+	patches, err := globPatternsFS(fSys, o.patchFilePaths)
+	if err != nil {
+		return err
+	}
+	if len(patches) == 0 {
+		return nil
+	}
+
+	mf, err := kustfile.NewKustomizationFile(fSys)
+	if err != nil {
+		return err
+	}
+
+	m, err := mf.Read()
+	if err != nil {
+		return err
+	}
+
+	var removePatches []string
+	for _, p := range patches {
+		if !patch.Exist(m.PatchesStrategicMerge, p) {
+			log.Printf("patch %s doesn't exist in kustomization file", p)
+			continue
+		}
+		removePatches = append(removePatches, p)
+	}
+	m.PatchesStrategicMerge = patch.Delete(m.PatchesStrategicMerge, removePatches...)
+
+	return mf.Write(m)
+}

pkg/commands/edit/remove/removepatch_test.go

@@ -0,0 +1,148 @@
+/*
+Copyright 2019 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package remove
+
+import (
+	"fmt"
+	"sigs.k8s.io/kustomize/v3/pkg/fs"
+	"sigs.k8s.io/kustomize/v3/pkg/patch"
+	"strings"
+	"testing"
+)
+
+const (
+	patchFileContent = `
+Lorem ipsum dolor sit amet, consectetur adipiscing elit,
+sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
+`
+)
+
+func makeKustomizationPatchFS() fs.FileSystem {
+	fakeFS := fs.MakeFakeFS()
+	patches := []string{"patch1.yaml", "patch2.yaml"}
+
+	fakeFS.WriteTestKustomizationWith([]byte(
+		fmt.Sprintf("patchesStrategicMerge:\n  - %s",
+			strings.Join(patches, "\n  - "))))
+
+	for _, p := range patches {
+		fakeFS.WriteFile(p, []byte(patchFileContent))
+	}
+	fakeFS.WriteFile("patch3.yaml", []byte(patchFileContent))
+	return fakeFS
+}
+
+func TestRemovePatch(t *testing.T) {
+	fakeFS := makeKustomizationPatchFS()
+	cmd := newCmdRemovePatch(fakeFS)
+	args := []string{"patch1.yaml"}
+	err := cmd.RunE(cmd, args)
+
+	if err != nil {
+		t.Errorf("unexpected error %v", err)
+	}
+
+	m := readKustomizationFS(t, fakeFS)
+	for _, k := range args {
+		if patch.Exist(m.PatchesStrategicMerge, k) {
+			t.Errorf("%s must be deleted", k)
+		}
+	}
+}
+
+func TestRemovePatchMultipleArgs(t *testing.T) {
+	fakeFS := makeKustomizationPatchFS()
+	cmd := newCmdRemovePatch(fakeFS)
+	args := []string{"patch1.yaml", "patch2.yaml"}
+	err := cmd.RunE(cmd, args)
+
+	if err != nil {
+		t.Errorf("unexpected error %v", err)
+	}
+
+	m := readKustomizationFS(t, fakeFS)
+	for _, k := range args {
+		if patch.Exist(m.PatchesStrategicMerge, k) {
+			t.Errorf("%s must be deleted", k)
+		}
+	}
+}
+
+func TestRemovePatchGlob(t *testing.T) {
+	fakeFS := makeKustomizationPatchFS()
+	cmd := newCmdRemovePatch(fakeFS)
+	args := []string{"patch*.yaml"}
+	err := cmd.RunE(cmd, args)
+
+	if err != nil {
+		t.Errorf("unexpected error %v", err)
+	}
+
+	m := readKustomizationFS(t, fakeFS)
+	if len(m.PatchesStrategicMerge) != 0 {
+		t.Errorf("all patch must be deleted")
+	}
+}
+
+func TestRemovePatchNotDefinedInKustomization(t *testing.T) {
+	fakeFS := makeKustomizationPatchFS()
+	cmd := newCmdRemovePatch(fakeFS)
+	args := []string{"patch3.yaml"}
+	err := cmd.RunE(cmd, args)
+
+	if err != nil {
+		t.Errorf("unexpected error %v", err)
+	}
+
+	m := readKustomizationFS(t, fakeFS)
+	for _, k := range []string{"patch1.yaml", "patch2.yaml"} {
+		if !patch.Exist(m.PatchesStrategicMerge, k) {
+			t.Errorf("%s must exist", k)
+		}
+	}
+}
+
+func TestRemovePatchNotExist(t *testing.T) {
+	fakeFS := makeKustomizationPatchFS()
+	cmd := newCmdRemovePatch(fakeFS)
+	args := []string{"patch4.yaml"}
+	err := cmd.RunE(cmd, args)
+
+	if err != nil {
+		t.Errorf("unexpected error %v", err)
+	}
+
+	m := readKustomizationFS(t, fakeFS)
+	for _, k := range []string{"patch1.yaml", "patch2.yaml"} {
+		if !patch.Exist(m.PatchesStrategicMerge, k) {
+			t.Errorf("%s must exist", k)
+		}
+	}
+}
+
+func TestRemovePatchNoArgs(t *testing.T) {
+	fakeFS := makeKustomizationPatchFS()
+	cmd := newCmdRemovePatch(fakeFS)
+	err := cmd.RunE(cmd, nil)
+
+	if err == nil {
+		t.Errorf("expected an error")
+	}
+	if err.Error() != "must specify a patch file" {
+		t.Errorf("incorrect error: %v", err.Error())
+	}
+}

pkg/commands/edit/remove/util.go

@@ -0,0 +1,38 @@
+/*
+Copyright 2019 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package remove
+
+import (
+	"log"
+	"sigs.k8s.io/kustomize/v3/pkg/fs"
+)
+
+func globPatternsFS(fsys fs.FileSystem, patterns []string) ([]string, error) {
+	var result []string
+	for _, pattern := range patterns {
+		files, err := fsys.Glob(pattern)
+		if err != nil {
+			return nil, err
+		}
+		if len(files) == 0 {
+			log.Printf("%s has no match", pattern)
+			continue
+		}
+		result = append(result, files...)
+	}
+	return result, nil
+}