Ticket #42573: 42573.5.patch

src/wp-includes/class-wp-theme.php

@@ -984 +984 @@
          *               being absolute paths.
          */
         public function get_files( $type = null, $depth = 0, $search_parent = false ) {
-                // get and cache all theme files to start with.
-                $label = sanitize_key( 'files_' . $this->cache_hash . '-' . $this->get( 'Version' ) );
-                $transient_key = substr( $label, 0, 29 ) . md5( $label );
+                $do_caching = $depth > 1;
+                $all_files  = false;
+
+                if ( $do_caching ) {
+                        // get and cache all theme files to start with.
+                        $label = sanitize_key( 'files_' . $this->cache_hash . '-' . $this->get( 'Version' ) );
+                        $transient_key = substr( $label, 0, 29 ) . md5( $label );
+
+                        $all_files = get_transient( $transient_key );
+                }
 
-                $all_files = get_transient( $transient_key );
                 if ( false === $all_files ) {
                         $all_files = (array) self::scandir( $this->get_stylesheet_directory(), null, -1 );
 
@@ -996 +1002 @@
                                 $all_files += (array) self::scandir( $this->get_template_directory(), null, -1 );
                         }
 
-                        set_transient( $transient_key, $all_files, HOUR_IN_SECONDS );
+                        $do_caching && set_transient( $transient_key, $all_files, 5 * MINUTE_IN_SECONDS );
                 }
 
                 // Filter $all_files by $type & $depth.