mirror of https://github.com/knative/client.git
120 lines
3.6 KiB
Go
120 lines
3.6 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 source
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import (
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"fmt"
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"knative.dev/client/pkg/sources"
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"github.com/spf13/cobra"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"k8s.io/apimachinery/pkg/runtime/schema"
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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/client/pkg/commands/source/duck"
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"knative.dev/client/pkg/dynamic"
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knerrors "knative.dev/client/pkg/errors"
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)
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const (
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sourceListGroup = "client.knative.dev"
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sourceListVersion = "v1alpha1"
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sourceListKind = "SourceList"
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)
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var listExample = `
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# List available eventing sources
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kn source list
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# List PingSource type sources
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kn source list --type=PingSource
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# List PingSource and ApiServerSource types sources
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kn source list --type=PingSource --type=apiserversource`
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// NewListCommand defines and processes `kn source list`
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func NewListCommand(p *commands.KnParams) *cobra.Command {
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filterFlags := &flags.SourceTypeFilters{}
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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 event sources",
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Aliases: []string{"ls"},
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Example: listExample,
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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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dynamicClient, err := p.NewDynamicClient(namespace)
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if err != nil {
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return err
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}
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var filters dynamic.WithTypes
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for _, filter := range filterFlags.Filters {
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filters = append(filters, dynamic.WithTypeFilter(filter))
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}
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sourceList, err := dynamicClient.ListSources(cmd.Context(), filters...)
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switch {
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case knerrors.IsForbiddenError(err):
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gvks := sources.BuiltInSourcesGVKs()
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if sourceList, err = dynamicClient.ListSourcesUsingGVKs(cmd.Context(), &gvks, filters...); err != nil {
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return knerrors.GetError(err)
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}
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case err != nil:
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return knerrors.GetError(err)
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}
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if sourceList == nil {
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sourceList = &unstructured.UnstructuredList{}
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}
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if !listFlags.GenericPrintFlags.OutputFlagSpecified() && len(sourceList.Items) == 0 {
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fmt.Fprintf(cmd.OutOrStdout(), "No sources found.\n")
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return nil
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}
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if sourceList.GroupVersionKind().Empty() {
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sourceList.SetGroupVersionKind(schema.GroupVersionKind{Group: sourceListGroup, Version: sourceListVersion, Kind: sourceListKind})
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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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listFlags.EnsureWithNamespace()
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}
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printer, err := listFlags.ToPrinter()
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if err != nil {
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return nil
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}
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if listFlags.GenericPrintFlags.OutputFlagSpecified() {
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return printer.PrintObj(sourceList, cmd.OutOrStdout())
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}
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// Convert the source list to DuckSourceList only if human readable table printing requested
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sourceDuckList := duck.ToSourceList(sourceList)
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err = printer.PrintObj(sourceDuckList, 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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filterFlags.Add(listCommand, "source type")
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return listCommand
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}
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