WP Super Cache: The wp_super_cache_clear_post_cache filter must stop …

…all edits (#36069)

* Need to check this filter in more places.

Yes, it should be a single function, but it would still be 3 lines of
code..

* changelog

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/8111778103

CHANGELOG.md

@@ -29,6 +29,7 @@ This is an alpha version! The changes listed here are not final.
 ### Fixed
 - Supercache: add "days" to "Next preload scheduled" message.
 - Super Cache: with rebuild enabled, apply that to subdirectories instead of deleting them.
+- WP Super Cache - fix the wp_super_cache_clear_post_cache so the homepage cache isn't deleted too.
 - WP Super Cache: bail if the request uri isn't set. It means the plugin isn't configured yet.
 
 ## [1.11.0] - 2023-11-08

wp-cache-phase2.php

@@ -3132,6 +3132,11 @@ function wpsc_post_transition( $new_status, $old_status, $post ) {
 		return;
 	}
 
+	// Allow plugins to reject cache clears for specific posts.
+	if ( ! apply_filters( 'wp_super_cache_clear_post_cache', true, $post ) ) {
+		return;
+	}
+
 	if ( ( $old_status === 'private' || $old_status === 'publish' ) && $new_status !== 'publish' ) { // post unpublished
 		if ( ! function_exists( 'get_sample_permalink' ) ) {
 			require_once ABSPATH . 'wp-admin/includes/post.php';
@@ -3240,6 +3245,11 @@ function wp_cache_post_change( $post_id ) {
 		return $post_id;
 	}
 
+	// Allow plugins to reject cache clears for specific posts.
+	if ( ! apply_filters( 'wp_super_cache_clear_post_cache', true, $post ) ) {
+		return $post_id;
+	}
+
 	// Some users are inexplicibly seeing this error on scheduled posts.
 	// define this constant to disable the post status check.
 	if ( ! defined( 'WPSCFORCEUPDATE' ) && ! in_array( get_post_status( $post ), array( 'publish', 'private' ), true ) ) {