mirror of https://github.com/knative/client.git
102 lines
2.8 KiB
Go
102 lines
2.8 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 service
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import (
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"fmt"
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"sort"
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"github.com/spf13/cobra"
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servingv1 "knative.dev/serving/pkg/apis/serving/v1"
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"knative.dev/client/pkg/kn/commands"
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"knative.dev/client/pkg/kn/commands/flags"
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clientservingv1 "knative.dev/client/pkg/serving/v1"
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)
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// NewServiceListCommand represents 'kn service list' command
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func NewServiceListCommand(p *commands.KnParams) *cobra.Command {
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serviceListFlags := flags.NewListPrintFlags(ServiceListHandlers)
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serviceListCommand := &cobra.Command{
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Use: "list [name]",
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Short: "List available services.",
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Example: `
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# List all services
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kn service list
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# List all services in JSON output format
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kn service list -o json
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# List service 'web'
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kn service list web`,
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RunE: func(cmd *cobra.Command, args []string) error {
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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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client, err := p.NewServingClient(namespace)
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if err != nil {
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return err
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}
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serviceList, err := getServiceInfo(args, client)
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if err != nil {
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return err
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}
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if len(serviceList.Items) == 0 {
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fmt.Fprintf(cmd.OutOrStdout(), "No services found.\n")
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return nil
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}
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// empty namespace indicates all-namespaces flag is specified
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if namespace == "" {
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serviceListFlags.EnsureWithNamespace()
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}
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// Sort serviceList by namespace and name (in this order)
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sort.SliceStable(serviceList.Items, func(i, j int) bool {
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a := serviceList.Items[i]
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b := serviceList.Items[j]
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if a.Namespace != b.Namespace {
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return a.Namespace < b.Namespace
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}
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return a.ObjectMeta.Name < b.ObjectMeta.Name
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})
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return serviceListFlags.Print(serviceList, cmd.OutOrStdout())
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},
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}
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commands.AddNamespaceFlags(serviceListCommand.Flags(), true)
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serviceListFlags.AddFlags(serviceListCommand)
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return serviceListCommand
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}
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func getServiceInfo(args []string, client clientservingv1.KnServingClient) (*servingv1.ServiceList, error) {
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var (
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serviceList *servingv1.ServiceList
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err error
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)
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switch len(args) {
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case 0:
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serviceList, err = client.ListServices()
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case 1:
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serviceList, err = client.ListServices(clientservingv1.WithName(args[0]))
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default:
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return nil, fmt.Errorf("'kn service list' accepts maximum 1 argument")
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}
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return serviceList, err
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}
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