client/pkg/kn/commands/source/ping/describe.go

110 lines
3.0 KiB
Go

// Copyright © 2019 The Knative 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 ping
import (
"errors"
"fmt"
"github.com/spf13/cobra"
v1alpha2 "knative.dev/eventing/pkg/apis/sources/v1alpha2"
duckv1 "knative.dev/pkg/apis/duck/v1"
"knative.dev/client/pkg/kn/commands"
"knative.dev/client/pkg/printers"
)
// NewPingDescribeCommand returns a new command for describe a Ping source object
func NewPingDescribeCommand(p *commands.KnParams) *cobra.Command {
pingDescribe := &cobra.Command{
Use: "describe NAME",
Short: "Show details of a Ping source",
Example: `
# Describe a Ping source with name 'myping'
kn source ping describe myping`,
RunE: func(cmd *cobra.Command, args []string) error {
if len(args) != 1 {
return errors.New("'kn source ping describe' requires name of the source as single argument")
}
name := args[0]
pingSourceClient, err := newPingSourceClient(p, cmd)
if err != nil {
return err
}
cjSource, err := pingSourceClient.GetPingSource(name)
if err != nil {
return err
}
out := cmd.OutOrStdout()
dw := printers.NewPrefixWriter(out)
printDetails, err := cmd.Flags().GetBool("verbose")
if err != nil {
return err
}
writePingSource(dw, cjSource, printDetails)
dw.WriteLine()
if err := dw.Flush(); err != nil {
return err
}
// Revisions summary info
writeSink(dw, &cjSource.Spec.Sink)
dw.WriteLine()
if err := dw.Flush(); err != nil {
return err
}
// Condition info
commands.WriteConditions(dw, cjSource.Status.Conditions, printDetails)
if err := dw.Flush(); err != nil {
return err
}
return nil
},
}
flags := pingDescribe.Flags()
commands.AddNamespaceFlags(flags, false)
flags.BoolP("verbose", "v", false, "More output.")
return pingDescribe
}
func writeSink(dw printers.PrefixWriter, sink *duckv1.Destination) {
subWriter := dw.WriteAttribute("Sink", "")
subWriter.WriteAttribute("Name", sink.Ref.Name)
subWriter.WriteAttribute("Namespace", sink.Ref.Namespace)
ref := sink.Ref
if ref != nil {
subWriter.WriteAttribute("Resource", fmt.Sprintf("%s (%s)", sink.Ref.Kind, sink.Ref.APIVersion))
}
uri := sink.URI
if uri != nil {
subWriter.WriteAttribute("URI", uri.String())
}
}
func writePingSource(dw printers.PrefixWriter, source *v1alpha2.PingSource, printDetails bool) {
commands.WriteMetadata(dw, &source.ObjectMeta, printDetails)
dw.WriteAttribute("Schedule", source.Spec.Schedule)
dw.WriteAttribute("Data", source.Spec.JsonData)
}