fix: return request output format when list is empty (#584)

BREAKING CHANGE: The `list` commands now return the original response
object in JSON or YAML, instead of nil, depending on the format requested.

Author: Enda

pkg/cmd/kafka/consumergroup/list/list.go

@@ -110,7 +110,6 @@ func runList(opts *Options) (err error) {
 		req = req.Topic(opts.topic)
 	}
 	consumerGroupData, httpRes, err := req.Execute()
-
 	if err != nil {
 		if httpRes == nil {
 			return err
@@ -147,7 +146,7 @@ func runList(opts *Options) (err error) {
 		}
 	}
 
-	if consumerGroupData.GetCount() == 0 {
+	if consumerGroupData.GetCount() == 0 && opts.output == "" {
 		logger.Info(localizer.MustLocalize(&localizer.Config{
 			MessageID: "kafka.consumerGroup.list.log.info.noConsumerGroups",
 			TemplateData: map[string]interface{}{

pkg/cmd/kafka/list/list.go

@@ -121,7 +121,7 @@ func runList(opts *options) error {
 		return err
 	}
 
-	if response.Size == 0 {
+	if response.Size == 0 && opts.outputFormat == "" {
 		logger.Info(localizer.MustLocalizeFromID("kafka.common.log.info.noKafkaInstances"))
 		return nil
 	}

pkg/cmd/kafka/topic/list/list.go

@@ -140,7 +140,7 @@ func runCmd(opts *Options) error {
 		}
 	}
 
-	if topicData.GetCount() == 0 {
+	if topicData.GetCount() == 0 && opts.output == "" {
 		logger.Info(localizer.MustLocalize(&localizer.Config{
 			MessageID: "kafka.topic.list.log.info.noTopics",
 			TemplateData: map[string]interface{}{

pkg/cmd/serviceaccount/list/list.go

@@ -105,7 +105,7 @@ func runList(opts *Options) (err error) {
 	}
 
 	serviceaccounts := res.GetItems()
-	if len(serviceaccounts) == 0 {
+	if len(serviceaccounts) == 0 && opts.output == "" {
 		logger.Info(localizer.MustLocalizeFromID("serviceAccount.list.log.info.noneFound"))
 		return nil
 	}