WordPress/wp-includes
Joe McGill 8d7ccf869d Themes: Make caches for block patterns clearable.
In [56765], theme block pattern files were cached to a transient as a performance enhancement. However, transients are not easily clearable when caches are flushed on environments not using a persistent cache, which can lead to errors if the theme files are renamed, edited, or moved.

This changes the caching mechanism to use `wp_cache_set()` instead, and caches these values to the global group so they are still persistent on environments using an object cache, and will be cleared by a cache flush.

In addition, the helper `_wp_get_block_patterns` has been moved `WP_Theme::get_block_patterns` for consistency with other block related theme methods and cache helpers for these values, `WP_Theme::get_pattern_cache` and `WP_Theme::set_pattern_cache`, have been made private.

Relevant unit tests updated.

Props: afercia, flixos90, mukesh27, joemcgill.
Fixes #59633. See #59591, #59490.

Built from https://develop.svn.wordpress.org/trunk@56978


git-svn-id: http://core.svn.wordpress.org/trunk@56489 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2023-10-20 19:08:21 +00:00
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2023-09-21 06:35:20 +00:00