[wp-trac] [WordPress Trac] #31811: Update error: not able to create directory

[WordPress Trac]

#31811: Update error: not able to create directory
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 Reporter:  afragen          |       Owner:  dd32
     Type:  defect (bug)     |      Status:  closed
 Priority:  normal           |   Milestone:  4.2.2
Component:  Upgrade/Install  |     Version:  4.2
 Severity:  normal           |  Resolution:  fixed
 Keywords:                   |     Focuses:
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Comment (by tellyworth):

 There's an obscure regression here. The old regex would strip the
 extension and add '.tmp' in one preg_replace. The new version strips the
 extension first, then concats '.tmp' separately, regardless of whether or
 not there was an extension passed in.

 So the previous version, if given a filename with no extension, would
 produce a temp name with no extension. Now the result always has a '.tmp'
 extension, regardless of the input.

 It's arguably correct behaviour, just posting here because we found a
 plugin that was tripped up by the change.

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Ticket URL: <https://core.trac.wordpress.org/ticket/31811#comment:12>
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