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<title>[57156] branches/6.4: Themes: Remove memoization from stylesheet and theme directories.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/57156">57156</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/57156","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>jorbin</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2023-12-04 19:57:30 +0000 (Mon, 04 Dec 2023)</dd>
</dl>
<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Themes: Remove memoization from stylesheet and theme directories.
This fixes bugs introduced in <a href="https://core.trac.wordpress.org/changeset/56635">[56635]</a> whereby the template or stylesheet path could be memoized incorrectly if get_template_directory() or get_stylesheet_directory() were called before the theme has been fully initialized.
Reviewed by Jorbin.
Merges <a href="https://core.trac.wordpress.org/changeset/57129">[57129]</a> to 6.4 branch.
Props partyfrikadelle, coreyw, kdowns, rebasaurus, meta4, flixos90, mukesh27, joemcgill, icaleb.
Fixes <a href="https://core.trac.wordpress.org/ticket/59847">#59847</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#branches64srcwpincludesmsblogsphp">branches/6.4/src/wp-includes/ms-blogs.php</a></li>
<li><a href="#branches64srcwpincludesthemephp">branches/6.4/src/wp-includes/theme.php</a></li>
<li><a href="#branches64testsphpunitteststhemephp">branches/6.4/tests/phpunit/tests/theme.php</a></li>
</ul>
<h3>Added Paths</h3>
<ul>
<li>branches/6.4/tests/phpunit/data/themedir2/</li>
</ul>
<h3>Property Changed</h3>
<ul>
<li><a href="#branches64">branches/6.4/</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<span class="cx" style="display: block; padding: 0 10px">Index: branches/6.4
</span><span class="cx" style="display: block; padding: 0 10px">===================================================================
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">--- branches/6.4 2023-12-04 19:49:18 UTC (rev 57155)
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+++ branches/6.4 2023-12-04 19:57:30 UTC (rev 57156)
</ins><a id="branches64"></a>
<div class="propset"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Property changes: branches/6.4</h4>
<pre class="diff"><span>
</span></pre></div>
<a id="svnmergeinfo"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: svn:mergeinfo</h4></div>
<span class="cx" style="display: block; padding: 0 10px"> /branches/5.0:43681-43682,43684-43688,43719-43720,43723,43726-43727,43729-43731,43734-43744,43747,43751-43754,43758,43760-43765,43767-43770,43772,43774-43781,43783,43785,43790-43806,43808-43821,43825,43828,43830-43834,43836-43843,43846-43863,43867-43889,43891-43894,43897-43905,43908-43909,43911-43929,43931-43942,43946-43947,43949-43956,43959-43964,43967-43969,43988,43994,44014,44017,44047,44183,44185,44187-44206,44208-44213,44231-44232,44235,44248,44284,44287-44288
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/5.5:49373-49379,49381
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/5.8:51889
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/trunk:56974,56978,56984,56987,56990-56992,56996,56999,57003,57009,57012-57013,57018-57019,57021-57022,57028-57029,57032-57034,57036,57044,57046,57048,57054,57063,57066-57067,57069,57075,57081,57084,57086,57089,57093,57102,57147
</del><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/trunk:56974,56978,56984,56987,56990-56992,56996,56999,57003,57009,57012-57013,57018-57019,57021-57022,57028-57029,57032-57034,57036,57044,57046,57048,57054,57063,57066-57067,57069,57075,57081,57084,57086,57089,57093,57102,57129,57147
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="branches64srcwpincludesmsblogsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/6.4/src/wp-includes/ms-blogs.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/6.4/src/wp-includes/ms-blogs.php 2023-12-04 19:49:18 UTC (rev 57155)
+++ branches/6.4/src/wp-includes/ms-blogs.php 2023-12-04 19:57:30 UTC (rev 57156)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -491,8 +491,6 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * @global array $_wp_switched_stack
</span><span class="cx" style="display: block; padding: 0 10px"> * @global bool $switched
</span><span class="cx" style="display: block; padding: 0 10px"> * @global string $table_prefix
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @global string $wp_template_path
- * @global string $wp_stylesheet_path
</del><span class="cx" style="display: block; padding: 0 10px"> * @global WP_Object_Cache $wp_object_cache
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @param int $new_blog_id The ID of the blog to switch to. Default: current blog.
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -534,10 +532,8 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $wpdb->set_blog_id( $new_blog_id );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $GLOBALS['table_prefix'] = $wpdb->get_blog_prefix();
- $GLOBALS['blog_id'] = $new_blog_id;
- $GLOBALS['wp_template_path'] = null;
- $GLOBALS['wp_stylesheet_path'] = null;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $GLOBALS['table_prefix'] = $wpdb->get_blog_prefix();
+ $GLOBALS['blog_id'] = $new_blog_id;
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( function_exists( 'wp_cache_switch_to_blog' ) ) {
</span><span class="cx" style="display: block; padding: 0 10px"> wp_cache_switch_to_blog( $new_blog_id );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -604,8 +600,6 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * @global int $blog_id
</span><span class="cx" style="display: block; padding: 0 10px"> * @global bool $switched
</span><span class="cx" style="display: block; padding: 0 10px"> * @global string $table_prefix
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @global string $wp_template_path
- * @global string $wp_stylesheet_path
</del><span class="cx" style="display: block; padding: 0 10px"> * @global WP_Object_Cache $wp_object_cache
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @return bool True on success, false if we're already on the current blog.
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -631,10 +625,8 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $wpdb->set_blog_id( $new_blog_id );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $GLOBALS['blog_id'] = $new_blog_id;
- $GLOBALS['table_prefix'] = $wpdb->get_blog_prefix();
- $GLOBALS['wp_template_path'] = null;
- $GLOBALS['wp_stylesheet_path'] = null;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $GLOBALS['blog_id'] = $new_blog_id;
+ $GLOBALS['table_prefix'] = $wpdb->get_blog_prefix();
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( function_exists( 'wp_cache_switch_to_blog' ) ) {
</span><span class="cx" style="display: block; padding: 0 10px"> wp_cache_switch_to_blog( $new_blog_id );
</span></span></pre></div>
<a id="branches64srcwpincludesthemephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/6.4/src/wp-includes/theme.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/6.4/src/wp-includes/theme.php 2023-12-04 19:49:18 UTC (rev 57155)
+++ branches/6.4/src/wp-includes/theme.php 2023-12-04 19:57:30 UTC (rev 57156)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -188,39 +188,25 @@
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 1.5.0
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 6.4.0 Memoizes filter execution so that it only runs once for the current theme.
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @since 6.4.2 Memoization removed.
</ins><span class="cx" style="display: block; padding: 0 10px"> *
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @global string $wp_stylesheet_path Current theme stylesheet directory path.
- *
</del><span class="cx" style="display: block; padding: 0 10px"> * @return string Path to active theme's stylesheet directory.
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> function get_stylesheet_directory() {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- global $wp_stylesheet_path;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $stylesheet = get_stylesheet();
+ $theme_root = get_theme_root( $stylesheet );
+ $stylesheet_dir = "$theme_root/$stylesheet";
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( null === $wp_stylesheet_path ) {
- $stylesheet = get_stylesheet();
- $theme_root = get_theme_root( $stylesheet );
- $stylesheet_dir = "$theme_root/$stylesheet";
-
- /**
- * Filters the stylesheet directory path for the active theme.
- *
- * @since 1.5.0
- *
- * @param string $stylesheet_dir Absolute path to the active theme.
- * @param string $stylesheet Directory name of the active theme.
- * @param string $theme_root Absolute path to themes directory.
- */
- $stylesheet_dir = apply_filters( 'stylesheet_directory', $stylesheet_dir, $stylesheet, $theme_root );
-
- // If there are filter callbacks, force the logic to execute on every call.
- if ( has_filter( 'stylesheet' ) || has_filter( 'theme_root' ) || has_filter( 'stylesheet_directory' ) ) {
- return $stylesheet_dir;
- }
-
- $wp_stylesheet_path = $stylesheet_dir;
- }
-
- return $wp_stylesheet_path;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ /**
+ * Filters the stylesheet directory path for the active theme.
+ *
+ * @since 1.5.0
+ *
+ * @param string $stylesheet_dir Absolute path to the active theme.
+ * @param string $stylesheet Directory name of the active theme.
+ * @param string $theme_root Absolute path to themes directory.
+ */
+ return apply_filters( 'stylesheet_directory', $stylesheet_dir, $stylesheet, $theme_root );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -338,39 +324,25 @@
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 1.5.0
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 6.4.0 Memoizes filter execution so that it only runs once for the current theme.
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @since 6.4.1 Memoization removed.
</ins><span class="cx" style="display: block; padding: 0 10px"> *
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @global string $wp_template_path Current theme template directory path.
- *
</del><span class="cx" style="display: block; padding: 0 10px"> * @return string Path to active theme's template directory.
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> function get_template_directory() {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- global $wp_template_path;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $template = get_template();
+ $theme_root = get_theme_root( $template );
+ $template_dir = "$theme_root/$template";
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( null === $wp_template_path ) {
- $template = get_template();
- $theme_root = get_theme_root( $template );
- $template_dir = "$theme_root/$template";
-
- /**
- * Filters the active theme directory path.
- *
- * @since 1.5.0
- *
- * @param string $template_dir The path of the active theme directory.
- * @param string $template Directory name of the active theme.
- * @param string $theme_root Absolute path to the themes directory.
- */
- $template_dir = apply_filters( 'template_directory', $template_dir, $template, $theme_root );
-
- // If there are filter callbacks, force the logic to execute on every call.
- if ( has_filter( 'template' ) || has_filter( 'theme_root' ) || has_filter( 'template_directory' ) ) {
- return $template_dir;
- }
-
- $wp_template_path = $template_dir;
- }
-
- return $wp_template_path;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ /**
+ * Filters the active theme directory path.
+ *
+ * @since 1.5.0
+ *
+ * @param string $template_dir The path of the active theme directory.
+ * @param string $template Directory name of the active theme.
+ * @param string $theme_root Absolute path to the themes directory.
+ */
+ return apply_filters( 'template_directory', $template_dir, $template, $theme_root );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -776,13 +748,11 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * @global WP_Customize_Manager $wp_customize
</span><span class="cx" style="display: block; padding: 0 10px"> * @global array $sidebars_widgets
</span><span class="cx" style="display: block; padding: 0 10px"> * @global array $wp_registered_sidebars
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @global string $wp_stylesheet_path
- * @global string $wp_template_path
</del><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @param string $stylesheet Stylesheet name.
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> function switch_theme( $stylesheet ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- global $wp_theme_directories, $wp_customize, $sidebars_widgets, $wp_registered_sidebars, $wp_stylesheet_path, $wp_template_path;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ global $wp_theme_directories, $wp_customize, $sidebars_widgets, $wp_registered_sidebars;
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $requirements = validate_theme_requirements( $stylesheet );
</span><span class="cx" style="display: block; padding: 0 10px"> if ( is_wp_error( $requirements ) ) {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -866,13 +836,6 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> update_option( 'theme_switched', $old_theme->get_stylesheet() );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- /*
- * Reset globals to force refresh the next time these directories are
- * accessed via `get_stylesheet_directory()` / `get_template_directory()`.
- */
- $wp_stylesheet_path = null;
- $wp_template_path = null;
-
</del><span class="cx" style="display: block; padding: 0 10px"> // Clear pattern caches.
</span><span class="cx" style="display: block; padding: 0 10px"> $new_theme->delete_pattern_cache();
</span><span class="cx" style="display: block; padding: 0 10px"> $old_theme->delete_pattern_cache();
</span></span></pre></div>
<a id="branches64testsphpunitteststhemephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/6.4/tests/phpunit/tests/theme.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/6.4/tests/phpunit/tests/theme.php 2023-12-04 19:49:18 UTC (rev 57155)
+++ branches/6.4/tests/phpunit/tests/theme.php 2023-12-04 19:57:30 UTC (rev 57156)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1179,4 +1179,130 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $this->markTestSkipped( "Could not switch to $block_theme." );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+ /**
+ * Make sure filters added after the initial call are fired.
+ *
+ * @ticket 59847
+ *
+ * @covers ::get_stylesheet_directory
+ */
+ public function test_get_stylesheet_directory_filters_apply() {
+ // Call the function prior to the filter being added.
+ get_stylesheet_directory();
+
+ $expected = 'test_root/dir';
+
+ // Add the filer.
+ add_filter(
+ 'stylesheet_directory',
+ function () use ( $expected ) {
+ return $expected;
+ }
+ );
+
+ $this->assertSame( $expected, get_stylesheet_directory() );
+ }
+
+ /**
+ * Make sure filters added after the initial call are fired.
+ *
+ * @ticket 59847
+ *
+ * @covers ::get_template_directory
+ */
+ public function test_get_template_directory_filters_apply() {
+ // Call the function prior to the filter being added.
+ get_template_directory();
+
+ $expected = 'test_root/dir';
+
+ // Add the filer.
+ add_filter(
+ 'template_directory',
+ function () use ( $expected ) {
+ return $expected;
+ }
+ );
+
+ $this->assertSame( $expected, get_template_directory() );
+ }
+
+ /**
+ * Make sure get_stylesheet_directory uses the correct path when the root theme dir changes.
+ *
+ * @ticket 59847
+ *
+ * @covers ::get_stylesheet_directory
+ */
+ public function test_get_stylesheet_directory_uses_registered_theme_dir() {
+ $old_theme = wp_get_theme();
+
+ switch_theme( 'test' );
+
+ $old_root = get_theme_root( 'test' );
+ $path1 = get_stylesheet_directory();
+
+ $new_root = DIR_TESTDATA . '/themedir2';
+ register_theme_directory( $new_root );
+
+ // Mock the stylesheet root option to mimic that the active root has changed.
+ add_filter(
+ 'pre_option_stylesheet_root',
+ function () use ( $new_root ) {
+ return $new_root;
+ }
+ );
+
+ $path2 = get_stylesheet_directory();
+
+ // Cleanup.
+ switch_theme( $old_theme->get_stylesheet() );
+
+ $this->assertEquals( $old_root . '/test', $path1, 'The original stylesheet path is not correct' );
+ $this->assertEquals( $new_root . '/test', $path2, 'The new stylesheet path is not correct' );
+ }
+
+ /**
+ * Make sure get_template_directory uses the correct path when the root theme dir changes.
+ *
+ * @ticket 59847
+ *
+ * @covers ::get_template_directory
+ */
+ public function test_get_template_directory_uses_registered_theme_dir() {
+ $old_theme = wp_get_theme();
+
+ switch_theme( 'test' );
+
+ // Mock parent theme to be returned as the template.
+ add_filter(
+ 'pre_option_template',
+ function () {
+ return 'test-parent';
+ }
+ );
+
+ $old_root = get_theme_root( 'test' );
+ $path1 = get_template_directory();
+
+ $new_root = DIR_TESTDATA . '/themedir2';
+ register_theme_directory( $new_root );
+
+ // Mock the template root option to mimic that the active root has changed.
+ add_filter(
+ 'pre_option_template_root',
+ function () use ( $new_root ) {
+ return $new_root;
+ }
+ );
+
+ $path2 = get_template_directory();
+
+ // Cleanup.
+ switch_theme( $old_theme->get_stylesheet() );
+
+ $this->assertEquals( $old_root . '/test-parent', $path1, 'The original template path is not correct' );
+ $this->assertEquals( $new_root . '/test-parent', $path2, 'The new template path is not correct' );
+ }
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre>
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