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https://issues.apache.org/jira/browse/KAFKA-6971?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16699309#comment-16699309
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ASF GitHub Bot commented on KAFKA-6971:
---------------------------------------
omkreddy closed pull request #5175: KAFKA-6971: Passing in help flag to
kafka-console-producer should pri…
URL: https://github.com/apache/kafka/pull/5175
This is a PR merged from a forked repository.
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the sake of provenance:
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diff --git a/core/src/main/scala/kafka/tools/ConsoleConsumer.scala
b/core/src/main/scala/kafka/tools/ConsoleConsumer.scala
index b3103ebfa88..8dd6d06eb8f 100755
--- a/core/src/main/scala/kafka/tools/ConsoleConsumer.scala
+++ b/core/src/main/scala/kafka/tools/ConsoleConsumer.scala
@@ -351,7 +351,7 @@ object ConsoleConsumer extends Logging {
.describedAs("consumer group id")
.ofType(classOf[String])
- if (args.length == 0)
+ if (args.length == 0 || args(0).equals("--help"))
CommandLineUtils.printUsageAndDie(parser, "The console consumer is a
tool that reads data from Kafka and outputs it to standard output.")
var groupIdPassed = true
diff --git a/core/src/main/scala/kafka/tools/ConsoleProducer.scala
b/core/src/main/scala/kafka/tools/ConsoleProducer.scala
index e5b72a3fa19..be34d8d6b89 100644
--- a/core/src/main/scala/kafka/tools/ConsoleProducer.scala
+++ b/core/src/main/scala/kafka/tools/ConsoleProducer.scala
@@ -204,7 +204,7 @@ object ConsoleProducer {
.ofType(classOf[String])
val options = parser.parse(args : _*)
- if (args.length == 0)
+ if (args.length == 0 || args(0).equals("--help"))
CommandLineUtils.printUsageAndDie(parser, "Read data from standard input
and publish it to Kafka.")
CommandLineUtils.checkRequiredArgs(parser, options, topicOpt,
brokerListOpt)
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> Passing in help flag to kafka-console-producer should print arg options
> -----------------------------------------------------------------------
>
> Key: KAFKA-6971
> URL: https://issues.apache.org/jira/browse/KAFKA-6971
> Project: Kafka
> Issue Type: Improvement
> Components: core, producer
> Affects Versions: 1.1.0
> Reporter: Yeva Byzek
> Priority: Minor
> Labels: newbie
>
> {{kafka-console-consumer --help}} prints "help is not a recognized option" as
> well as output of options
> {{kafka-console-producer --help}} prints "help is not a recognized option"
> but no output of options
> Possible solutions:
> (a) Enhance {{kafka-console-producer}} to also print out all options when a
> user passes in an unrecognized option
> (b) Enhance both {{kafka-console-producer}} and {{kafka-console-consumer}} to
> legitimately accept the {{--help}} flag
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