Add upstream

wp-content/plugins/jetpack/modules/sitemaps/sitemap-buffer-master.php

@@ -0,0 +1,44 @@
+<?php
+/**
+ * Sitemaps (per the protocol) are essentially lists of XML fragments;
+ * lists which are subject to size constraints. The Jetpack_Sitemap_Buffer_Master
+ * extends the Jetpack_Sitemap_Buffer class to represent the master sitemap
+ * buffer.
+ *
+ * @since 5.3.0
+ * @package Jetpack
+ */
+
+/**
+ * A buffer for constructing master sitemap xml files.
+ *
+ * @since 5.3.0
+ */
+class Jetpack_Sitemap_Buffer_Master extends Jetpack_Sitemap_Buffer {
+
+	public function __construct( $item_limit, $byte_limit, $time = '1970-01-01 00:00:00' ) {
+		parent::__construct( $item_limit, $byte_limit, $time );
+
+		$this->doc->appendChild(
+			$this->doc->createComment( "generator='jetpack-" . JETPACK__VERSION . "'" )
+		);
+
+		$this->doc->appendChild(
+			$this->doc->createProcessingInstruction(
+				'xml-stylesheet',
+				'type="text/xsl" href="' . $this->finder->construct_sitemap_url( 'sitemap-index.xsl' ) . '"'
+			)
+		);
+	}
+
+	protected function get_root_element() {
+		if ( ! isset( $this->root ) ) {
+			$this->root = $this->doc->createElement( 'sitemapindex' );
+			$this->root->setAttribute( 'xmlns', 'http://www.sitemaps.org/schemas/sitemap/0.9' );
+			$this->doc->appendChild( $this->root );
+			$this->byte_capacity -= strlen( $this->doc->saveXML( $this->root ) );
+		}
+
+		return $this->root;
+	}
+}