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https://issues.apache.org/jira/browse/HADOOP-12341?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14733238#comment-14733238
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Kengo Seki commented on HADOOP-12341:
-------------------------------------

To resolve this issue, I have some questions:

* test-patch had skipped file type guessing if the file has .patch suffix, but 
this behaviour is changed on HADOOP-12129. Is there any concerns if we return 
this behaviour back?

* Or, is there any concerns if we match the following second and third patterns 
against whole lines in the file?

{code}
1662   fileOutput=$(head -n 1 "${patch}" | "${GREP}" -E "^(From [a-z0-9]* Mon 
Sep 17 00:00:00 2001)|(diff .*)|(Index: .*)$")
{code}

* Sean said:

bq. we detect git patches made with format-patch, but we only ever use git 
apply, rather than the git am needed in that case.

but I tried some patches made with format-patch, and {{git apply}} worked on 
all of them. If we can't find any example immediately, can we postpone the fix 
for this case?

> patch file confuses test-patch (date format problems)
> -----------------------------------------------------
>
>                 Key: HADOOP-12341
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12341
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: yetus
>    Affects Versions: HADOOP-12111
>            Reporter: Allen Wittenauer
>         Attachments: HADOOP-12326.002.patch, 
> HADOOP-12375.HADOOP-12111.02.patch
>
>
> This was attached to HADOOP-12326 .



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