Add upstream

wp-content/plugins/jetpack/modules/sitemaps.php

@@ -0,0 +1,42 @@
+<?php
+/**
+ * Module Name: Sitemaps
+ * Module Description: Make it easy for search engines to find your site.
+ * Sort Order: 13
+ * First Introduced: 3.9
+ * Requires Connection: No
+ * Auto Activate: No
+ * Module Tags: Recommended, Traffic
+ * Feature: Recommended
+ * Additional Search Queries: sitemap, traffic, search, site map, seo
+ *
+ * @package Jetpack
+ */
+
+/**
+ * Disable direct access and execution.
+ */
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+if ( '1' == get_option( 'blog_public' ) ) { // loose comparison okay.
+	include_once 'sitemaps/sitemaps.php';
+}
+
+add_action( 'jetpack_activate_module_sitemaps', 'jetpack_sitemap_on_activate' );
+
+/**
+ * Run when Sitemaps module is activated.
+ *
+ * @since 4.8.0
+ */
+function jetpack_sitemap_on_activate() {
+	wp_clear_scheduled_hook( 'jp_sitemap_cron_hook' );
+	require_once dirname( __FILE__ ) . '/sitemaps/sitemap-constants.php';
+	require_once dirname( __FILE__ ) . '/sitemaps/sitemap-buffer.php';
+	require_once dirname( __FILE__ ) . '/sitemaps/sitemap-stylist.php';
+	require_once dirname( __FILE__ ) . '/sitemaps/sitemap-librarian.php';
+	require_once dirname( __FILE__ ) . '/sitemaps/sitemap-finder.php';
+	require_once dirname( __FILE__ ) . '/sitemaps/sitemap-builder.php';
+}