[wp-trac] [WordPress Trac] #34976: Plug ins fail to update after WP 4.4 installed

[WordPress Trac]

#34976: Plug ins fail to update after WP 4.4 installed
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 Reporter:  patdundee       |       Owner:
     Type:  defect (bug)    |      Status:  new
 Priority:  normal          |   Milestone:  4.4.1
Component:  Filesystem API  |     Version:  4.4
 Severity:  normal          |  Resolution:
 Keywords:                  |     Focuses:
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Comment (by mensmaximus):

 Replying to [comment:64 Cornwell]:
 > Replying to [comment:61 mensmaximus]:
 > > [...]
 > > This is the reason why removing the -a option from 4.4 fails on the
 .maintenance while it works in 4.3.1.
 >
 > I don't think that's always the case. After I had this problem I ended
 up in maintenance mode, but I deleted the .maintenance file and the site
 became live again.

 It was a guess. I just checked the code and the .maintenance file is
 handled by WP_Upgrader:maintenance_mode which handsover the deletion to
 $wp_filesystem->delete(). This function does not rely on
 $wp_filesystem->exist()

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Ticket URL: <https://core.trac.wordpress.org/ticket/34976#comment:65>
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