mirror of https://github.com/knative/client.git
85 lines
2.2 KiB
Go
85 lines
2.2 KiB
Go
// Copyright © 2020 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 channel
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import (
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"fmt"
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"knative.dev/client/pkg/util"
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messagingv1 "knative.dev/eventing/pkg/apis/messaging/v1"
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"github.com/spf13/cobra"
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"knative.dev/client/pkg/commands"
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"knative.dev/client/pkg/commands/flags"
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"knative.dev/eventing/pkg/client/clientset/versioned/scheme"
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)
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// NewChannelListCommand is for listing channel objects
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func NewChannelListCommand(p *commands.KnParams) *cobra.Command {
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listFlags := flags.NewListPrintFlags(ListHandlers)
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listCommand := &cobra.Command{
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Use: "list",
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Short: "List channels",
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Aliases: []string{"ls"},
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Example: `
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# List all channels
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kn channel list
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# List channels in YAML format
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kn channel ping list -o yaml`,
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RunE: func(cmd *cobra.Command, args []string) (err error) {
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// TODO: filter list by given channel name
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client, err := newChannelClient(p, cmd)
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if err != nil {
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return err
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}
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channelList, err := client.ListChannel(cmd.Context())
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if err != nil {
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return err
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}
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if channelList == nil {
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channelList = &messagingv1.ChannelList{}
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err := util.UpdateGroupVersionKindWithScheme(channelList, messagingv1.SchemeGroupVersion, scheme.Scheme)
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if err != nil {
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return err
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}
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}
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if !listFlags.GenericPrintFlags.OutputFlagSpecified() && len(channelList.Items) == 0 {
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fmt.Fprintf(cmd.OutOrStdout(), "No channels found.\n")
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return nil
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}
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if client.Namespace() == "" {
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listFlags.EnsureWithNamespace()
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}
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err = listFlags.Print(channelList, cmd.OutOrStdout())
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if 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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commands.AddNamespaceFlags(listCommand.Flags(), true)
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listFlags.AddFlags(listCommand)
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return listCommand
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}
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