[wp-trac] [WordPress Trac] #42963: Improve deletion of $_old_files during upgrades

[WordPress Trac]

#42963: Improve deletion of $_old_files during upgrades
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 Reporter:  joemcgill        |      Owner:
     Type:  enhancement      |     Status:  new
 Priority:  normal           |  Milestone:  5.0
Component:  Upgrade/Install  |    Version:
 Severity:  normal           |   Keywords:
  Focuses:                   |
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 While testing upgrades for #42720, it occurred to me that if the upgrade
 process failed to delete old files, we were potentially leaving rather
 large files behind to clutter up the file system. To avoid this scenario,
 we could attempt to empty the contents of old files if they still exist
 after unsuccessfully deleting them during an upgrade routine.

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Ticket URL: <https://core.trac.wordpress.org/ticket/42963>
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