mirror of https://github.com/knative/client.git
120 lines
3.2 KiB
Go
120 lines
3.2 KiB
Go
// Copyright © 2019 The Knative Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package trigger
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import (
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"errors"
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"fmt"
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"github.com/spf13/cobra"
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"knative.dev/client/pkg/kn/commands"
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"knative.dev/client/pkg/printers"
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"knative.dev/eventing/pkg/apis/eventing/v1alpha1"
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duckv1 "knative.dev/pkg/apis/duck/v1"
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)
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// NewTriggerDescribeCommand returns a new command for describe a trigger
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func NewTriggerDescribeCommand(p *commands.KnParams) *cobra.Command {
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triggerDescribe := &cobra.Command{
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Use: "describe NAME",
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Short: "Describe a trigger.",
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Example: `
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# Describe a trigger with name 'my-trigger'
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kn trigger describe my-trigger`,
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RunE: func(cmd *cobra.Command, args []string) error {
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if len(args) != 1 {
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return errors.New("'trigger describe' requires the name of the trigger as single argument")
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}
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name := args[0]
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// get namespace
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namespace, err := p.GetNamespace(cmd)
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if err != nil {
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return err
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}
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// get client
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eventingClient, err := p.NewEventingClient(namespace)
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if err != nil {
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return err
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}
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trigger, err := eventingClient.GetTrigger(name)
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if err != nil {
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return err
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}
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out := cmd.OutOrStdout()
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dw := printers.NewPrefixWriter(out)
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printDetails, err := cmd.Flags().GetBool("verbose")
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if err != nil {
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return err
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}
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writeTrigger(dw, trigger, printDetails)
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dw.WriteLine()
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if err := dw.Flush(); err != nil {
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return err
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}
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// Revisions summary info
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writeSink(dw, trigger.Spec.Subscriber)
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dw.WriteLine()
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if err := dw.Flush(); err != nil {
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return err
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}
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// Condition info
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commands.WriteConditions(dw, trigger.Status.Conditions, printDetails)
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if err := dw.Flush(); err != nil {
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return err
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}
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return nil
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},
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}
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flags := triggerDescribe.Flags()
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commands.AddNamespaceFlags(flags, false)
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flags.BoolP("verbose", "v", false, "More output.")
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return triggerDescribe
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}
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func writeSink(dw printers.PrefixWriter, sink *duckv1.Destination) {
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subWriter := dw.WriteAttribute("Sink", "")
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subWriter.WriteAttribute("Name", sink.Ref.Name)
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subWriter.WriteAttribute("Namespace", sink.Ref.Namespace)
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ref := sink.Ref
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if ref != nil {
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subWriter.WriteAttribute("Resource", fmt.Sprintf("%s (%s)", sink.Ref.Kind, sink.Ref.APIVersion))
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}
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uri := sink.URI
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if uri != nil {
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subWriter.WriteAttribute("URI", uri.String())
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}
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}
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func writeTrigger(dw printers.PrefixWriter, trigger *v1alpha1.Trigger, printDetails bool) {
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commands.WriteMetadata(dw, &trigger.ObjectMeta, printDetails)
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dw.WriteAttribute("Broker", trigger.Spec.Broker)
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subWriter := dw.WriteAttribute("Filter", "")
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for key, value := range *trigger.Spec.Filter.Attributes {
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subWriter.WriteAttribute(key, value)
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}
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}
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