[wp-trac] [WordPress Trac] #60504: Plugin dependencies: Account for mu-plugin as dependency

[WordPress Trac]

#60504: Plugin dependencies: Account for mu-plugin as dependency
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 Reporter:  johnbillion                          |       Owner:  costdev
     Type:  defect (bug)                         |      Status:  assigned
 Priority:  normal                               |   Milestone:  6.5
Component:  Upgrade/Install                      |     Version:  trunk
 Severity:  critical                             |  Resolution:
 Keywords:  needs-testing dev-feedback has-      |     Focuses:
  patch has-unit-tests                           |
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Comment (by johnbillion):

 [57658] removed the auto-deactivation of plugins with unmet dependencies.

 This now means upon updating to WordPress 6.5 an active plugin that has a
 dependency that is fulfilled by a mu-plugin will remain active (in the
 same way an active plugin with a dependency that is not fulfilled will
 remain active).

 It remains that an ''inactive'' plugin that has a dependency that is
 fulfilled by a mu-plugin will be prevented from being activated, as its
 dependency is considered unfulfilled. Bearing in mind that the
 introduction of a mu-plugin is a manual process I think this is less of a
 pressing concern, but it's my opinion that we do need a way of allowing a
 mu-plugin to be recognised as a dependency.

 A default mu-loader could be a good idea but we'd need to decide where its
 configured list of mu-plugins comes from, it might have to come from
 another mu-plugin. I'm not a big fan of filtering the list of
 `active_plugins` to lie about what's active as that could come back to
 bite, especially if other plugins are reading that option and acting upon
 it.

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Ticket URL: <https://core.trac.wordpress.org/ticket/60504#comment:19>
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