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<?php
/**
* Build file cache for content pages
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup Maintenance
*/
require_once __DIR__ . '/Maintenance.php';
/**
* Maintenance script that builds file cache for content pages.
*
* @ingroup Maintenance
*/
class RebuildFileCache extends Maintenance {
public function __construct() {
parent::__construct();
$this->mDescription = "Build file cache for content pages";
$this->addOption( 'start', 'Page_id to start from', false, true );
$this->addOption( 'end', 'Page_id to end on', false, true );
$this->addOption( 'overwrite', 'Refresh page cache' );
$this->setBatchSize( 100 );
}
public function finalSetup() {
global $wgDebugToolbar;
// Debug toolbar makes content uncacheable so we disable it.
// Has to be done before Setup.php initialize MWDebug
$wgDebugToolbar = false;
parent::finalSetup();
}
public function execute() {
global $wgUseFileCache, $wgReadOnly, $wgContentNamespaces, $wgRequestTime;
global $wgOut;
if ( !$wgUseFileCache ) {
$this->error( "Nothing to do -- \$wgUseFileCache is disabled.", true );
}
$wgReadOnly = 'Building cache'; // avoid DB writes (like enotif/counters)
$start = $this->getOption( 'start', "0" );
if ( !ctype_digit( $start ) ) {
$this->error( "Invalid value for start parameter.", true );
}
$start = intval( $start );
$end = $this->getOption( 'end', "0" );
if ( !ctype_digit( $end ) ) {
$this->error( "Invalid value for end parameter.", true );
}
$end = intval( $end );
$this->output( "Building content page file cache from page {$start}!\n" );
$dbr = wfGetDB( DB_SLAVE );
$overwrite = $this->getOption( 'overwrite', false );
$start = ( $start > 0 )
? $start
: $dbr->selectField( 'page', 'MIN(page_id)', false, __FUNCTION__ );
$end = ( $end > 0 )
? $end
: $dbr->selectField( 'page', 'MAX(page_id)', false, __FUNCTION__ );
if ( !$start ) {
$this->error( "Nothing to do.", true );
}
$_SERVER['HTTP_ACCEPT_ENCODING'] = 'bgzip'; // hack, no real client
# Do remaining chunk
$end += $this->mBatchSize - 1;
$blockStart = $start;
$blockEnd = $start + $this->mBatchSize - 1;
$dbw = wfGetDB( DB_MASTER );
// Go through each page and save the output
while ( $blockEnd <= $end ) {
// Get the pages
$res = $dbr->select( 'page', array( 'page_namespace', 'page_title', 'page_id' ),
array( 'page_namespace' => $wgContentNamespaces,
"page_id BETWEEN $blockStart AND $blockEnd" ),
array( 'ORDER BY' => 'page_id ASC', 'USE INDEX' => 'PRIMARY' )
);
$dbw->begin( __METHOD__ ); // for any changes
foreach ( $res as $row ) {
$rebuilt = false;
$wgRequestTime = microtime( true ); # bug 22852
$title = Title::makeTitleSafe( $row->page_namespace, $row->page_title );
if ( null == $title ) {
$this->output( "Page {$row->page_id} has bad title\n" );
continue; // broken title?
}
$context = new RequestContext;
$context->setTitle( $title );
$article = Article::newFromTitle( $title, $context );
$context->setWikiPage( $article->getPage() );
$wgOut = $context->getOutput(); // set display title
// If the article is cacheable, then load it
if ( $article->isFileCacheable() ) {
$cache = HTMLFileCache::newFromTitle( $title, 'view' );
if ( $cache->isCacheGood() ) {
if ( $overwrite ) {
$rebuilt = true;
} else {
$this->output( "Page {$row->page_id} already cached\n" );
continue; // done already!
}
}
ob_start( array( &$cache, 'saveToFileCache' ) ); // save on ob_end_clean()
$wgUseFileCache = false; // hack, we don't want $article fiddling with filecache
$article->view();
MediaWiki\suppressWarnings(); // header notices
$wgOut->output();
MediaWiki\restoreWarnings();
$wgUseFileCache = true;
ob_end_clean(); // clear buffer
if ( $rebuilt ) {
$this->output( "Re-cached page {$row->page_id}\n" );
} else {
$this->output( "Cached page {$row->page_id}\n" );
}
} else {
$this->output( "Page {$row->page_id} not cacheable\n" );
}
}
$dbw->commit( __METHOD__ ); // commit any changes (just for sanity)
$blockStart += $this->mBatchSize;
$blockEnd += $this->mBatchSize;
}
$this->output( "Done!\n" );
}
}
$maintClass = "RebuildFileCache";
require_once RUN_MAINTENANCE_IF_MAIN;
|
