[wp-trac] [WordPress Trac] #64665: Add mu-plugins loading filter

[WordPress Trac]

#64665: Add mu-plugins loading filter
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 Reporter:  dd32             |       Owner:  (none)
     Type:  feature request  |      Status:  new
 Priority:  normal           |   Milestone:  Awaiting Review
Component:  Bootstrap/Load   |     Version:
 Severity:  normal           |  Resolution:
 Keywords:  has-patch        |     Focuses:
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Comment (by jorbin):

 Some previous related discussion: #34936

 First note is that documentation similar to what is on functions such as
 `enable_wp_debug_mode_checks` and `enable_loading_advanced_cache_dropin `
 explaining that these filters run before plugins are loaded would be
 helpful.

 For the regular plugins and network activated plugins, I think filtering
 on the option makes more sense for two reasons:
 1. When removing plugins, you avoid the wasted calls to things such as
 `validate_file`.
 2. When adding plugins, you get the benefit of things such as the
 network_plugins collision prevention and recovery mode.


 > In my case, I'd like to avoid loading any plugin content via a
 sunrise.php file, before a wp-env environment is fully configured, but
 without having to have to start the environment without mappings and then
 add them in.


 To avoid loading any mu-plugins, you can always define `WPMU_PLUGIN_DIR`
 to a non directory in your sunrise.php. But this is hacky and an actual
 extension point makes better sense.

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Ticket URL: <https://core.trac.wordpress.org/ticket/64665#comment:2>
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