[wp-trac] [WordPress Trac] #27754: Add ability to filter WP_Upgrader packages before upgrade

[WordPress Trac]

#27754: Add ability to filter WP_Upgrader packages before upgrade
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 Reporter:  nofearinc        |      Owner:
     Type:  enhancement      |     Status:  new
 Priority:  normal           |  Milestone:  Awaiting Review
Component:  Upgrade/Install  |    Version:  3.8
 Severity:  normal           |   Keywords:  has-patch
  Focuses:                   |
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 Although #22378 adds a `upgrader_pre_download` filter which allows for
 denying a package for an update, there are cases where we would need to
 filter the package options or even trigger the `upgrader_pre_download`
 filter based on other arguments before that.

 A good example would be changing the destination to a local file or an
 internal repository (like a CDN for plugins) for an internal network for
 bandwidth or speed purposes.

 I'm adding a sample `upgrader_package_options` filter right before
 extracting the options in the `run()` function which is the central point
 and the last step in the stack for this after calling functions like
 install() or upgrade() have been fired from different places.

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Ticket URL: <https://core.trac.wordpress.org/ticket/27754>
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