by Dave Reid: Added tracking and requirements check for the maximum file size.

xmlsitemap.inc

@@ -83,6 +83,10 @@ function _xmlsitemap_regenerate_before() {
   // Clear all cached sitemap files.
   xmlsitemap_clear_directory();
   xmlsitemap_check_directory();
+
+  // Clear the maximum chunk and file size variables.
+  variable_set('xmlsitemap_maximum_chunks', 0);
+  variable_set('xmlsitemap_maximum_filesize', 0);
 }
 
 function _xmlsitemap_get_memory_usage($start = FALSE) {
@@ -186,6 +190,12 @@ function xmlsitemap_generate($chunk = 0, $language = NULL) {
   }
   fclose($handle);
 
+  // Track the maximum filesize.
+  $filesize = filesize($file);
+  if ($filesize > variable_get('xmlsitemap_max_filesize', 0)) {
+    variable_set('xmlsitemap_max_filesize', $filesize);
+  }
+
   if (!$status) {
     trigger_error(t('Unknown error occurred while writing to file @file.', array('@file' => $file)));
   }

xmlsitemap.install

@@ -54,13 +54,22 @@ function xmlsitemap_requirements($phase) {
       $requirements['xmlsitemap_chunk_count'] = array(
         'title' => $t('XML sitemap page count'),
         'value' => xmlsitemap_get_chunk_count(),
-        'description' => $t('You have exceeded the number of sitemap pages (1,000).'),
+        'description' => $t('You have exceeded the number of sitemap pages (@number).', array('@number' => number_format(XMLSITEMAP_MAX_SITEMAP_CHUNKS))),
         'severity' => REQUIREMENT_ERROR,
       );
       if (!in_array(xmlsitemap_get_chunk_size(), array(50000, 'auto'))) {
         $requirements['xmlsitemap_chunk_count']['description'] .= ' ' . t('Please increase the number of links per page.');
       }
     }
+    $max_filesize = variable_get('xmlsitemap_max_filesize', 0);
+    if ($max_filesize > XMLSITEMAP_MAX_SITEMAP_FILESIZE) {
+      $requirements['xmlsitemap_file_size'] = array(
+        'title' => $t('XML sitemap file_size'),
+        'value' => format_size($max_filesize),
+        'description' => $t('You have exceeded the maximum sitemap file size of @size. If possible, decrease the number of links per sitemap page.', array('@size' => format_size(XMLSITEMAP_MAX_SITEMAP_FILESIZE))),
+        'severity' => REQUIREMENT_ERROR,
+      );
+    }
 
     // Check when the cached files were last generated.
     $generated_last = xmlsitemap_var('generated_last');

xmlsitemap.module

@@ -650,6 +650,8 @@ function xmlsitemap_variables() {
     'xmlsitemap_developer_mode' => FALSE,
     'xmlsitemap_frontpage_priority' => '1.0',
     'xmlsitemap_frontpage_changefreq' => XMLSITEMAP_FREQUENCY_DAILY,
+    'xmlsitemap_max_chunks' => 0,
+    'xmlsitemap_max_filesize' => 0,
     // Removed variables are set to NULL so they can still be deleted.
     'xmlsitemap_gz' => FALSE,
     'xmlsitemap_regenerate_last' => NULL,