Added the 'load synced patterns' utility

assets/boilerplate/includes/load-synced-patterns.php

@@ -0,0 +1,75 @@
+<?php
+
+//add action for when editor assets load
+add_action('init', function () {
+
+	// if the CBT plugin is active we don't need to do anything
+	if (class_exists('CBT_Synced_Pattern_Loader')) {
+		return;
+	}
+
+	function CBT_render_pattern($pattern_file)
+	{
+		ob_start();
+		include $pattern_file;
+		return ob_get_clean();
+	}
+
+	$theme    = wp_get_theme();
+	$pattern_files = glob($theme->get_stylesheet_directory() . '/patterns/*.php');
+
+	foreach ($pattern_files as $pattern_file) {
+
+		$pattern_data = get_file_data($pattern_file, array(
+			'title'         => 'Title',
+			'slug'          => 'Slug',
+			'description'   => 'Description',
+			'inserter'      => 'Inserter',
+			'synced'	=> 'Synced',
+		));
+
+		// if the pattern is not synced do nothing
+		if ($pattern_data['synced'] !== 'yes') {
+			continue;
+		}
+
+		$pattern_post = get_page_by_path(sanitize_title($pattern_data['slug']), OBJECT, 'wp_block');
+		if ($pattern_post) {
+			// the post exists
+			$pattern_data['id'] = $pattern_post->ID;
+			// Note, we are NOT updating the post.  If you want that behavior install the CBT plugin.
+		}
+		else {
+			// the post does not exist.  create it.
+			$pattern_data['content'] = CBT_render_pattern($pattern_file);
+			$pattern_data['id'] = wp_insert_post(array(
+				'post_title' => $pattern_data['title'],
+				'post_name' => $pattern_data['slug'],
+				'post_content' => $pattern_data['content'],
+				'post_type' => 'wp_block',
+				'post_status' => 'publish',
+				'ping_status' => 'closed',
+				'comment_status' => 'closed',
+			));
+		}
+
+		// UN register the unsynced pattern and RE register it with the reference to the synced pattern
+		// this pattern injects a synced pattern block as the content.
+		// and allows it to be used by anything that uses the wp:pattern (rather than the wp:block)
+		$pattern_registry = WP_Block_Patterns_Registry::get_instance();
+
+		if ( $pattern_registry->is_registered($pattern_data['slug'])){
+			$pattern_registry->unregister($pattern_data['slug']);
+		}
+
+		$pattern_registry->register(
+			$pattern_data['slug'],
+			array(
+				'title'   => $pattern_data['title'],
+				'inserter' => false,
+				'content' => '<!-- wp:block {"ref":' . $pattern_data['id'] . '} /-->',
+			)
+		);
+
+	}
+});