mirror of https://github.com/knative/client.git
87 lines
2.3 KiB
Go
87 lines
2.3 KiB
Go
/*
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Copyright 2020 The Knative Authors
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package subscription
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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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"knative.dev/eventing/pkg/client/clientset/versioned/scheme"
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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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)
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// NewSubscriptionListCommand is for listing subscription objects
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func NewSubscriptionListCommand(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 subscriptions",
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Example: `
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# List all subscriptions
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kn subscription list
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# List subscriptions in YAML format
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kn subscription 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 subscription name
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client, err := newSubscriptionClient(p, cmd)
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if err != nil {
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return err
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}
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subscriptionList, err := client.ListSubscription(cmd.Context())
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if err != nil {
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return err
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}
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if subscriptionList == nil {
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subscriptionList = &messagingv1.SubscriptionList{}
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err := util.UpdateGroupVersionKindWithScheme(subscriptionList, 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(subscriptionList.Items) == 0 {
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fmt.Fprintf(cmd.OutOrStdout(), "No subscriptions 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(subscriptionList, 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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