Cron API: Add error logging and hooks to `wp-cron.php`.

This changeset adds error logging on `wp_reschedule_event()` and `wp_unschedule_event` in `wp-cron.php`. This allows proper error logging when random errors appear. It also introduces `cron_reschedule_event_error` and `cron_unschedule_event_error` hooks which can be used to trigger additional behaviors when an error occurs.

Props Enchiridion, johnbillion, costdev.
Fixes #56048.

Built from https://develop.svn.wordpress.org/trunk@54258


git-svn-id: http://core.svn.wordpress.org/trunk@53817 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-cron.php

@@ -123,10 +123,58 @@ foreach ( $crons as $timestamp => $cronhooks ) {
 			$schedule = $v['schedule'];
 
 			if ( $schedule ) {
-				wp_reschedule_event( $timestamp, $schedule, $hook, $v['args'] );
+				$result = wp_reschedule_event( $timestamp, $schedule, $hook, $v['args'], true );
+
+				if ( is_wp_error( $result ) ) {
+					error_log(
+						sprintf(
+							/* translators: 1: Hook name, 2: Error code, 3: Error message, 4: Event data. */
+							__( 'Cron reschedule event error for hook: %1$s, Error code: %2$s, Error message: %3$s, Data: %4$s' ),
+							$hook,
+							$result->get_error_code(),
+							$result->get_error_message(),
+							wp_json_encode( $v )
+						)
+					);
+
+					/**
+					 * Fires when an error happens rescheduling a cron event.
+					 *
+					 * @since 6.1.0
+					 *
+					 * @param WP_Error $result The WP_Error object.
+					 * @param string   $hook   Action hook to execute when the event is run.
+					 * @param array    $v      Event data.
+					 */
+					do_action( 'cron_reschedule_event_error', $result, $hook, $v );
+				}
 			}
 
-			wp_unschedule_event( $timestamp, $hook, $v['args'] );
+			$result = wp_unschedule_event( $timestamp, $hook, $v['args'], true );
+
+			if ( is_wp_error( $result ) ) {
+				error_log(
+					sprintf(
+						/* translators: 1: Hook name, 2: Error code, 3: Error message, 4: Event data. */
+						__( 'Cron unschedule event error for hook: %1$s, Error code: %2$s, Error message: %3$s, Data: %4$s' ),
+						$hook,
+						$result->get_error_code(),
+						$result->get_error_message(),
+						wp_json_encode( $v )
+					)
+				);
+
+				/**
+				 * Fires when an error happens unscheduling a cron event.
+				 *
+				 * @since 6.1.0
+				 *
+				 * @param WP_Error $result The WP_Error object.
+				 * @param string   $hook   Action hook to execute when the event is run.
+				 * @param array    $v      Event data.
+				 */
+				do_action( 'cron_unschedule_event_error', $result, $hook, $v );
+			}
 
 			/**
 			 * Fires scheduled events.

wp-includes/blocks/cover.php

@@ -8,8 +8,8 @@
 /**
  * Renders the `core/cover` block on server.
  *
- * @param array $attributes The block attributes.
+ * @param array  $attributes The block attributes.
- * @param array $content    The block rendered content.
+ * @param string $content    The block rendered content.
  *
  * @return string Returns the cover block markup, if useFeaturedImage is true.
  */
@@ -46,9 +46,19 @@ function render_block_core_cover( $attributes, $content ) {
 			update_post_thumbnail_cache();
 		}
 		$current_featured_image = get_the_post_thumbnail_url();
-		$content                = preg_replace(
+
+		$styles = 'background-image:url(' . esc_url( $current_featured_image ) . '); ';
+
+		if ( isset( $attributes['minHeight'] ) ) {
+			$height_unit = empty( $attributes['minHeightUnit'] ) ? 'px' : $attributes['minHeightUnit'];
+			$height      = " min-height:{$attributes['minHeight']}{$height_unit}";
+
+			$styles .= $height;
+		}
+
+		$content = preg_replace(
 			'/class=\".*?\"/',
-			'${0} style="background-image:url(' . esc_url( $current_featured_image ) . ')"',
+			'${0} style="' . $styles . '"',
 			$content,
 			1
 		);

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.1-alpha-54257';
+$wp_version = '6.1-alpha-54258';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.