+ global $wgCacheDirectory, $wgFileCacheDirectory, $wgFileCacheDepth;
+
+ if ( $wgFileCacheDirectory ) {
+ $dir = $wgFileCacheDirectory;
+ } elseif ( $wgCacheDirectory ) {
+ $dir = "$wgCacheDirectory/html";
+ } else {
+ throw new MWException( 'Please set $wgCacheDirectory in LocalSettings.php if you wish to use the HTML file cache' );
+ }
+