[wp-trac] [WordPress Trac] #51857: Add rollback for failed plugin/theme updates

[WordPress Trac]

#51857: Add rollback for failed plugin/theme updates
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 Reporter:  pbiron                               |       Owner:  pbiron
     Type:  enhancement                          |      Status:  reopened
 Priority:  normal                               |   Milestone:  6.1
Component:  Upgrade/Install                      |     Version:
 Severity:  normal                               |  Resolution:
 Keywords:  early has-testing-info needs-unit-   |     Focuses:
  tests has-patch needs-dev-note needs-testing   |
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Comment (by SergeyBiryukov):

 In [changeset:"53578" 53578]:
 {{{
 #!CommitTicketReference repository="" revision="53578"
 Upgrade/Install: Add a conditional to facilitate testing of the Rollbacks
 feature project.

 The [https://make.wordpress.org/core/2021/02/19/feature-plugin-rollback-
 update-failure/ Rollback Update Failure feature project] creates a
 temporary backup of plugins and themes before updating. This aims to make
 the update process more reliable and ensure that if a plugin or theme
 update fails, the previous version can be safely restored.

 If the [https://wordpress.org/plugins/rollback-update-failure/ Rollback
 Update Failure plugin] is installed, `WP_Upgrader::install_package()` will
 use the `move_dir()` function from there for better performance. Instead
 of copying a directory from one location to another, it uses the
 `rename()` PHP function to speed up the process, which is instrumental in
 creating a temporary backup without a delay. If the renaming failed, it
 falls back to `copy_dir()` WP function.

 This conditional aims to facilitate broader testing of the feature. It is
 temporary, until the plugin is merged into core.

 Props afragen, pbiron, costdev, davidbaumwald, audrasjb, jrf,
 SergeyBiryukov.
 Fixes #56057. See #51857, #54166.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/51857#comment:263>
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