[wp-trac] [WordPress Trac] #53705: Plugin upgrade deletes files from other in-progress upgrades

[WordPress Trac]

#53705: Plugin upgrade deletes files from other in-progress upgrades
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 Reporter:  bpayton          |       Owner:  (none)
     Type:  defect (bug)     |      Status:  new
 Priority:  normal           |   Milestone:  5.9
Component:  Upgrade/Install  |     Version:  5.8
 Severity:  normal           |  Resolution:
 Keywords:                   |     Focuses:
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Comment (by bpayton):

 To make reproducing this easier, I added
 [https://core.trac.wordpress.org/attachment/ticket/53705/wp-upgrader-
 error-logging.diff a patch to add error logging to WP_Upgrader] and
 updated the repro instructions to use that. Each log message is prefixed
 with the request URI, and what is happening should be much clearer with
 the error logging.

 I also uploaded [https://core.trac.wordpress.org/attachment/ticket/53705
 /avoid-corrupting-concurrent-plugin-upgrades.diff a small patch] to avoid
 this issue by deleting only older files from the upgrade directory.

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Ticket URL: <https://core.trac.wordpress.org/ticket/53705#comment:8>
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