Add patch remover

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)
+}