Refactor kubewatch command (#1365)

pkg/fission-cli/cmd/kubewatch/delete.go

@@ -0,0 +1,71 @@
+/*
+Copyright 2019 The Fission 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 kubewatch
+
+import (
+	"fmt"
+
+	"github.com/pkg/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+
+	"github.com/fission/fission/pkg/controller/client"
+	"github.com/fission/fission/pkg/fission-cli/cliwrapper/cli"
+	"github.com/fission/fission/pkg/fission-cli/cmd"
+)
+
+type DeleteSubCommand struct {
+	client    *client.Client
+	name      string
+	namespace string
+}
+
+func Delete(flags cli.Input) error {
+	opts := DeleteSubCommand{
+		client: cmd.GetServer(flags),
+	}
+	return opts.do(flags)
+}
+
+func (opts *DeleteSubCommand) do(flags cli.Input) error {
+	err := opts.complete(flags)
+	if err != nil {
+		return err
+	}
+	return opts.run(flags)
+}
+
+func (opts *DeleteSubCommand) complete(flags cli.Input) error {
+	opts.name = flags.String("name")
+	if len(opts.name) == 0 {
+		return errors.New("need name of watch to delete, use --name")
+	}
+	opts.namespace = flags.String("triggerns")
+	return nil
+}
+
+func (opts *DeleteSubCommand) run(flags cli.Input) error {
+	err := opts.client.WatchDelete(&metav1.ObjectMeta{
+		Name:      opts.name,
+		Namespace: opts.namespace,
+	})
+	if err != nil {
+		return errors.Wrap(err, "error deleting kubewatch")
+	}
+
+	fmt.Printf("watch '%v' deleted\n", opts.name)
+	return nil
+}