[jira] [Issue Comment Deleted] (SPARK-7977) Disallow println

["Charles Yeh (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-7977?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Charles Yeh updated SPARK-7977:
-------------------------------
    Comment: was deleted

(was: I'm looking for a starter task, but this was completed.)

> Disallow println
> ----------------
>
>                 Key: SPARK-7977
>                 URL: https://issues.apache.org/jira/browse/SPARK-7977
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Project Infra
>            Reporter: Reynold Xin
>              Labels: starter
>
> Very often we see pull requests that added println from debugging, but the author forgot to remove it before code review.
> We can use the regex checker to disallow println. For legitimate use of println, we can then disable the rule.
> Add to scalastyle-config.xml file:
> {code}
>   <check customId="println" level="error" class="org.scalastyle.scalariform.TokenChecker" enabled="true">
>     <parameters><parameter name="regex">^println$</parameter></parameters>
>     <customMessage><![CDATA[Are you sure you want to println? If yes, wrap the code block with 
>       // scalastyle:off println
>       println(...)
>       // scalastyle:on println]]></customMessage>
>   </check>
> {code}



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