maintenance/rebuildFileCache.php

   1 <?php
   2 /**
   3  * Build file cache for content pages
   4  *
   5  * @file
   6  * @ingroup Maintenance
   7  */
   8
   9 /** */
  10 require_once( "commandLine.inc" );
  11 if( !$wgUseFileCache ) exit(0);
  12
  13 $start = isset($args[0]) ? intval($args[0]) : 0;
  14 echo "Building content page file cache from page {$start}!\n";
  15
  16 $dbr = wfGetDB( DB_SLAVE );
  17 $start = $start > 0 ? $start : $dbr->selectField( 'page', 'MIN(page_id)', false, __FUNCTION__ );
  18 $end = $dbr->selectField( 'page', 'MAX(page_id)', false, __FUNCTION__ );
  19 if( !$start ) {
  20         die("Nothing to do.\n");
  21 }
  22
  23 $_SERVER['HTTP_ACCEPT_ENCODING'] = 'bgzip'; // hack, no real client
  24 OutputPage::setEncodings(); # Not really used yet
  25
  26 $BATCH_SIZE = 100;
  27 # Do remaining chunk
  28 $end += $BATCH_SIZE - 1;
  29 $blockStart = $start;
  30 $blockEnd = $start + $BATCH_SIZE - 1;
  31
  32 // Go through each page and save the output
  33 while( $blockEnd <= $end ) {
  34         // Get the pages
  35         $res = $dbr->select( 'page', array('page_namespace','page_title','page_id'),
  36                 array('page_namespace' => $wgContentNamespaces,
  37                         "page_id BETWEEN $blockStart AND $blockEnd" ),
  38                 array('ORDER BY' => 'page_id ASC','USE INDEX' => 'PRIMARY')
  39         );
  40         while( $row = $dbr->fetchObject( $res ) ) {
  41                 $wgTitle = Title::makeTitleSafe( $row->page_namespace, $row->page_title );
  42                 if( null == $wgTitle ) continue; // broken title?
  43                 $wgArticle = new Article( $wgTitle );
  44                 // If the article is cacheable, then load it
  45                 if( $wgArticle->isFileCacheable() ) {
  46                         $cache = new HTMLFileCache( $wgTitle );
  47                         if( $cache->isFileCacheGood() ) {
  48                                 echo "Page {$row->page_id} already cached\n";
  49                                 continue; // done already!
  50                         }
  51                         ob_start( array(&$cache, 'saveToFileCache' ) ); // save on ob_end_clean()
  52                         $wgUseFileCache = false; // hack, we don't want $wgArticle fiddling with filecache
  53                         $wgArticle->view();
  54                         @$wgOut->output(); // header notices
  55                         $wgUseFileCache = true;
  56                         ob_end_clean(); // clear buffer
  57                         $wgOut = new OutputPage(); // empty out any output page garbage
  58                         echo "Cached page {$row->page_id}\n";
  59                 }
  60         }
  61         $blockStart += $BATCH_SIZE - 1;
  62         $blockEnd += $BATCH_SIZE - 1;
  63         wfWaitForSlaves( 5 );
  64 }
  65 echo "Done!\n";
  66
  67 // Remove these to be safe
  68 if( isset($wgTitle) )
  69         unset($wgTitle);
  70 if( isset($wgArticle) )
  71         unset($wgArticle);