1 files changed, 47 insertions, 3 deletions

diff --git a/plugins/jetpack/jetpack_vendor/automattic/jetpack-sync/src/class-functions.php b/plugins/jetpack/jetpack_vendor/automattic/jetpack-sync/src/class-functions.php
index 02de16cd..b007c695 100644
--- a/plugins/jetpack/jetpack_vendor/automattic/jetpack-sync/src/class-functions.php
+++ b/plugins/jetpack/jetpack_vendor/automattic/jetpack-sync/src/class-functions.php
@@ -9,6 +9,7 @@ namespace Automattic\Jetpack\Sync;
 
 use Automattic\Jetpack\Connection\Urls;
 use Automattic\Jetpack\Constants;
+use Automattic\Jetpack\Modules as Jetpack_Modules;
 
 /**
  * Utility functions to generate data synced to wpcom
@@ -72,7 +73,7 @@ class Functions {
 		$cloned_taxonomy = json_decode( wp_json_encode( $taxonomy ) );
 
 		// recursive taxonomies are no fun.
-		if ( is_null( $cloned_taxonomy ) ) {
+		if ( $cloned_taxonomy === null ) {
 			return null;
 		}
 		// Remove any meta_box_cb if they are not the default wp ones.
@@ -82,7 +83,7 @@ class Functions {
 		}
 		// Remove update call back.
 		if ( isset( $cloned_taxonomy->update_count_callback ) &&
-			! is_null( $cloned_taxonomy->update_count_callback ) ) {
+			$cloned_taxonomy->update_count_callback !== null ) {
 			$cloned_taxonomy->update_count_callback = null;
 		}
 		// Remove rest_controller_class if it something other then the default.
@@ -466,7 +467,7 @@ class Functions {
 		}
 		$plugins_action_links = get_option( 'jetpack_plugin_api_action_links', array() );
 		if ( ! empty( $plugins_action_links ) ) {
-			if ( is_null( $plugin_file_singular ) ) {
+			if ( $plugin_file_singular === null ) {
 				return $plugins_action_links;
 			}
 			return ( isset( $plugins_action_links[ $plugin_file_singular ] ) ? $plugins_action_links[ $plugin_file_singular ] : null );
@@ -628,4 +629,47 @@ class Functions {
 		return $any;
 
 	}
+
+	/**
+	 * Return the list of installed themes
+	 *
+	 * @since 1.31.0
+	 *
+	 * @return array
+	 */
+	public static function get_themes() {
+		$current_stylesheet = get_stylesheet();
+		$installed_themes   = wp_get_themes();
+		$synced_headers     = array( 'Name', 'ThemeURI', 'Author', 'Version', 'Template', 'Status', 'TextDomain', 'RequiresWP', 'RequiresPHP' );
+		$themes             = array();
+		foreach ( $installed_themes as $stylesheet => $theme ) {
+			$themes[ $stylesheet ] = array();
+			foreach ( $synced_headers as $header ) {
+				$themes[ $stylesheet ][ $header ] = $theme->get( $header );
+			}
+			$themes[ $stylesheet ]['active'] = $stylesheet === $current_stylesheet;
+			if ( method_exists( $theme, 'is_block_theme' ) ) {
+				$themes[ $stylesheet ]['is_block_theme'] = $theme->is_block_theme();
+			}
+		}
+		/**
+		 * Filters the output of Sync's get_theme callable
+		 *
+		 * @since 1.31.0
+		 *
+		 * @param array $themes The list of installed themes formatted in an array with a collection of information extracted from the Theme's headers
+		 */
+		return apply_filters( 'jetpack_sync_get_themes_callable', $themes );
+	}
+
+	/**
+	 * Return the list of active Jetpack modules.
+	 *
+	 * @since $$next_version$$
+	 *
+	 * @return array
+	 */
+	public static function get_active_modules() {
+		return ( new Jetpack_Modules() )->get_active();
+	}
 }