add remove resource subcommand

pkg/commands/edit/remove/removeresource.go

@@ -0,0 +1,122 @@
+/*
+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 (
+	"errors"
+	"path/filepath"
+
+	"github.com/spf13/cobra"
+	"sigs.k8s.io/kustomize/pkg/commands/kustfile"
+	"sigs.k8s.io/kustomize/pkg/fs"
+)
+
+type removeResourceOptions struct {
+	resourceFilePaths []string
+}
+
+// newCmdRemoveResource remove the name of a file containing a resource to the kustomization file.
+func newCmdRemoveResource(fsys fs.FileSystem) *cobra.Command {
+	var o removeResourceOptions
+
+	cmd := &cobra.Command{
+		Use:   "resource",
+		Short: "Remove resource file paths to the kustomization file.",
+		Example: `
+		remove resource my-resource.yml
+		remove resource resource1.yml resource2.yml resource3.yml
+		remove resource resources/*.yml
+		`,
+		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.RunRemoveResource(fsys)
+		},
+	}
+	return cmd
+}
+
+// Validate validates removeResource command.
+func (o *removeResourceOptions) Validate(args []string) error {
+	if len(args) == 0 {
+		return errors.New("must specify a resource file")
+	}
+	o.resourceFilePaths = args
+	return nil
+}
+
+// Complete completes removeResource command.
+func (o *removeResourceOptions) Complete(cmd *cobra.Command, args []string) error {
+	return nil
+}
+
+// RunRemoveResource runs Resource command (do real work).
+func (o *removeResourceOptions) RunRemoveResource(fSys fs.FileSystem) error {
+
+	mf, err := kustfile.NewKustomizationFile(fSys)
+	if err != nil {
+		return err
+	}
+
+	m, err := mf.Read()
+	if err != nil {
+		return err
+	}
+
+	resources, err := globPatterns(m.Resources, o.resourceFilePaths)
+	if err != nil {
+		return err
+	}
+
+	if len(resources) == 0 {
+		return nil
+	}
+
+	newResources := make([]string, 0, len(m.Resources))
+	for _, resource := range m.Resources {
+		if kustfile.StringInSlice(resource, resources) {
+			continue
+		}
+		newResources = append(newResources, resource)
+	}
+
+	m.Resources = newResources
+	return mf.Write(m)
+}
+
+func globPatterns(resources []string, patterns []string) ([]string, error) {
+	var result []string
+	for _, pattern := range patterns {
+		for _, resource := range resources {
+			match, err := filepath.Match(pattern, resource)
+			if err != nil {
+				return nil, err
+			}
+			if !match {
+				continue
+			}
+			result = append(result, resource)
+		}
+	}
+	return result, nil
+}