Add upstream

wp-content/plugins/jetpack/modules/shortcodes/sitemap.php

@@ -0,0 +1,30 @@
+<?php
+/**
+ * Sitemap shortcode.
+ *
+ * Usage: [sitemap]
+ *
+ * @package Jetpack
+ */
+
+add_shortcode( 'sitemap', 'jetpack_sitemap_shortcode' );
+
+/**
+ * Renders a tree of pages.
+ *
+ * @since 4.5.0
+ *
+ * @return string
+ */
+function jetpack_sitemap_shortcode() {
+	$tree = wp_list_pages(
+		array(
+			'title_li' => '<b><a href="/">' . esc_html( get_bloginfo( 'name' ) ) . '</a></b>',
+			'exclude'  => get_option( 'page_on_front' ),
+			'echo'     => false,
+		)
+	);
+	return empty( $tree )
+		? ''
+		: '<ul class="jetpack-sitemap-shortcode">' . $tree . '</ul>';
+}