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https://issues.apache.org/jira/browse/HADOOP-12651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15109278#comment-15109278
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Allen Wittenauer commented on HADOOP-12651:
-------------------------------------------

bq. (various readme)

All reasonable. Also: Doh! on the license header.  Clearly I didn't test my own 
patch before submitting (only manually ran shellcheck haha).

bq.  Speaking of jenkins, it won't be a problem for trunk/future branches and 
branch-2 to invoke different dev-support scripts?

Hadoop precommit, at least for the time being, is pulling directly from yetus 
master via git at runtime.  The bundled test-patch hasn't been in use for 
months.

> Replace dev-support with wrappers to Yetus
> ------------------------------------------
>
>                 Key: HADOOP-12651
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12651
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: scripts
>    Affects Versions: 3.0.0
>            Reporter: Allen Wittenauer
>            Assignee: Allen Wittenauer
>         Attachments: HADOOP-12651.00.patch, HADOOP-12651.01.patch, 
> HADOOP-12651.02.patch, HADOOP-12651.03.patch
>
>
> Now that Yetus has had a release, we should rip out the components that make 
> it up from dev-support and replace them with wrappers.  The wrappers should:
> * default to a sane version
> * allow for version overrides via an env var
> * download into patchprocess
> * execute with the given parameters
> Marking this as an incompatible change, since we should also remove the 
> filename extensions and move these into a bin directory for better 
> maintenance towards the future.



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