<?php
/**
- * @file
+ * 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
+ *
* @ingroup Maintenance
*/
-/** */
-$optionsWithArgs = array('batch-size', 'm', 'e' );
-
-require_once( "commandLine.inc" );
-require_once( "refreshLinks.inc" );
-
-if( isset( $options['help'] ) ) {
- echo <<<TEXT
-Usage:
- php refreshLinks.php --help
- php refreshLinks.php [<start>] [-e <end>] [-m <maxlag>] [--dfn-only]
- [--batch-size <size>] [--new-only] [--redirects-only]
- php refreshLinks.php [<start>] [-e <end>] [-m <maxlag>] --old-redirects-only
-
- --help : This help message
- --dfn-only : Delete links from nonexistent articles only
- --batch-size <number> : The delete batch size when removing links from
- nonexistent articles (defaults to 100)
- --new-only : Only affect articles with just a single edit
- --redirects-only : Only fix redirects, not all links
- --old-redirects-only : Only fix redirects with no redirect table entry
- -m <number> : Maximum replication lag
- <start> : First page id to refresh
- -e <number> : Last page id to refresh
-
-TEXT;
- exit(0);
-}
+require_once( dirname( __FILE__ ) . '/Maintenance.php' );
-error_reporting( E_ALL & (~E_NOTICE) );
+class RefreshLinks extends Maintenance {
+ public function __construct() {
+ parent::__construct();
+ $this->mDescription = "Refresh link tables";
+ $this->addOption( 'dfn-only', 'Delete links from nonexistent articles only' );
+ $this->addOption( 'new-only', 'Only affect articles with just a single edit' );
+ $this->addOption( 'redirects-only', 'Only fix redirects, not all links' );
+ $this->addOption( 'old-redirects-only', 'Only fix redirects with no redirect table entry' );
+ $this->addOption( 'm', 'Maximum replication lag', false, true );
+ $this->addOption( 'e', 'Last page id to refresh', false, true );
+ $this->addArg( 'start', 'Page_id to start from, default 1', false );
+ $this->setBatchSize( 100 );
+ }
-if ( !$options['dfn-only'] ) {
- if ( isset( $args[0] ) ) {
- $start = (int)$args[0];
- } else {
- $start = 1;
+ public function execute() {
+ $max = $this->getOption( 'm', 0 );
+ if ( !$this->hasOption( 'dfn-only' ) ) {
+ $start = $this->getArg( 0, 1 );
+ $new = $this->getOption( 'new-only', false );
+ $end = $this->getOption( 'e', 0 );
+ $redir = $this->getOption( 'redirects-only', false );
+ $oldRedir = $this->getOption( 'old-redirects-only', false );
+ $this->doRefreshLinks( $start, $new, $max, $end, $redir, $oldRedir );
+ }
+ $this->deleteLinksFromNonexistent( $max, $this->mBatchSize );
}
- refreshLinks( $start, $options['new-only'], $options['m'], $options['e'], $options['redirects-only'], $options['old-redirects-only'] );
-}
+ /**
+ * Do the actual link refreshing.
+ * @param $start int Page_id to start from
+ * @param $newOnly bool Only do pages with 1 edit
+ * @param $maxLag int Max DB replication lag
+ * @param $end int Page_id to stop at
+ * @param $redirectsOnly bool Only fix redirects
+ * @param $oldRedirectsOnly bool Only fix redirects without redirect entries
+ */
+ private function doRefreshLinks( $start, $newOnly = false, $maxLag = false,
+ $end = 0, $redirectsOnly = false, $oldRedirectsOnly = false ) {
+ global $wgUser, $wgParser, $wgUseTidy;
-if ( !isset( $options['batch-size'] ) ) {
- $options['batch-size'] = 100;
-}
+ $reportingInterval = 100;
+ $dbr = wfGetDB( DB_SLAVE );
+ $start = intval( $start );
+
+ # Don't generate TeX PNGs (lack of a sensible current directory causes errors anyway)
+ $wgUser->setOption( 'math', MW_MATH_SOURCE );
+
+ # Don't generate extension images (e.g. Timeline)
+ if ( method_exists( $wgParser, "clearTagHooks" ) ) {
+ $wgParser->clearTagHooks();
+ }
+
+ # Don't use HTML tidy
+ $wgUseTidy = false;
+
+ $what = $redirectsOnly ? "redirects" : "links";
+
+ if ( $oldRedirectsOnly ) {
+ # This entire code path is cut-and-pasted from below. Hurrah.
+ $res = $dbr->query(
+ "SELECT page_id " .
+ "FROM page " .
+ "LEFT JOIN redirect ON page_id=rd_from " .
+ "WHERE page_is_redirect=1 AND rd_from IS NULL AND " .
+ ( $end == 0 ? "page_id >= $start"
+ : "page_id BETWEEN $start AND $end" ),
+ __METHOD__
+ );
+ $num = $dbr->numRows( $res );
+ $this->output( "Refreshing $num old redirects from $start...\n" );
+
+ $i = 0;
+ foreach ( $res as $row ) {
+ if ( !( ++$i % $reportingInterval ) ) {
+ $this->output( "$i\n" );
+ wfWaitForSlaves( $maxLag );
+ }
+ $this->fixRedirect( $row->page_id );
+ }
+ } elseif ( $newOnly ) {
+ $this->output( "Refreshing $what from " );
+ $res = $dbr->select( 'page',
+ array( 'page_id' ),
+ array(
+ 'page_is_new' => 1,
+ "page_id >= $start" ),
+ __METHOD__
+ );
+ $num = $dbr->numRows( $res );
+ $this->output( "$num new articles...\n" );
+
+ $i = 0;
+ foreach ( $res as $row ) {
+ if ( !( ++$i % $reportingInterval ) ) {
+ $this->output( "$i\n" );
+ wfWaitForSlaves( $maxLag );
+ }
+ if ( $redirectsOnly )
+ $this->fixRedirect( $row->page_id );
+ else
+ self::fixLinksFromArticle( $row->page_id );
+ }
+ } else {
+ if ( !$end ) {
+ $maxPage = $dbr->selectField( 'page', 'max(page_id)', false );
+ $maxRD = $dbr->selectField( 'redirect', 'max(rd_from)', false );
+ $end = max( $maxPage, $maxRD );
+ }
+ $this->output( "Refreshing redirects table.\n" );
+ $this->output( "Starting from page_id $start of $end.\n" );
+
+ for ( $id = $start; $id <= $end; $id++ ) {
+
+ if ( !( $id % $reportingInterval ) ) {
+ $this->output( "$id\n" );
+ wfWaitForSlaves( $maxLag );
+ }
+ $this->fixRedirect( $id );
+ }
+
+ if ( !$redirectsOnly ) {
+ $this->output( "Refreshing links table.\n" );
+ $this->output( "Starting from page_id $start of $end.\n" );
+
+ for ( $id = $start; $id <= $end; $id++ ) {
+
+ if ( !( $id % $reportingInterval ) ) {
+ $this->output( "$id\n" );
+ wfWaitForSlaves( $maxLag );
+ }
+ self::fixLinksFromArticle( $id );
+ }
+ }
+ }
+ }
+
+ /**
+ * Update the redirect entry for a given page
+ * @param $id int The page_id of the redirect
+ */
+ private function fixRedirect( $id ) {
+ global $wgTitle, $wgArticle;
+
+ $wgTitle = Title::newFromID( $id );
+ $dbw = wfGetDB( DB_MASTER );
+
+ if ( is_null( $wgTitle ) ) {
+ // This page doesn't exist (any more)
+ // Delete any redirect table entry for it
+ $dbw->delete( 'redirect', array( 'rd_from' => $id ),
+ __METHOD__ );
+ return;
+ }
+ $wgArticle = new Article( $wgTitle );
-deleteLinksFromNonexistent($options['m'], $options['batch-size']);
+ $rt = $wgArticle->followRedirect();
-if ( $options['globals'] ) {
- print_r( $GLOBALS );
+ if ( !$rt || !is_object( $rt ) ) {
+ // $wgTitle is not a redirect
+ // Delete any redirect table entry for it
+ $dbw->delete( 'redirect', array( 'rd_from' => $id ),
+ __METHOD__ );
+ } else {
+ $wgArticle->updateRedirectOn( $dbw, $rt );
+ }
+ }
+
+ /**
+ * Run LinksUpdate for all links on a given page_id
+ * @param $id int The page_id
+ */
+ public static function fixLinksFromArticle( $id ) {
+ global $wgTitle, $wgParser;
+
+ $wgTitle = Title::newFromID( $id );
+ $dbw = wfGetDB( DB_MASTER );
+
+ LinkCache::singleton()->clear();
+
+ if ( is_null( $wgTitle ) ) {
+ return;
+ }
+ $dbw->begin();
+
+ $revision = Revision::newFromTitle( $wgTitle );
+ if ( !$revision ) {
+ return;
+ }
+
+ $options = new ParserOptions;
+ $parserOutput = $wgParser->parse( $revision->getText(), $wgTitle, $options, true, true, $revision->getId() );
+ $update = new LinksUpdate( $wgTitle, $parserOutput, false );
+ $update->doUpdate();
+ $dbw->commit();
+ }
+
+ /*
+ * Removes non-existing links from pages from pagelinks, imagelinks,
+ * categorylinks, templatelinks and externallinks tables.
+ *
+ * @param $maxLag
+ * @param $batchSize The size of deletion batches
+ *
+ * @author Merlijn van Deen <valhallasw@arctus.nl>
+ */
+ private function deleteLinksFromNonexistent( $maxLag = 0, $batchSize = 100 ) {
+ wfWaitForSlaves( $maxLag );
+
+ $dbw = wfGetDB( DB_MASTER );
+
+ $lb = wfGetLBFactory()->newMainLB();
+ $dbr = $lb->getConnection( DB_SLAVE );
+ $dbr->bufferResults( false );
+
+ $linksTables = array( // table name => page_id field
+ 'pagelinks' => 'pl_from',
+ 'imagelinks' => 'il_from',
+ 'categorylinks' => 'cl_from',
+ 'templatelinks' => 'tl_from',
+ 'externallinks' => 'el_from',
+ );
+
+ foreach ( $linksTables as $table => $field ) {
+ $this->output( "Retrieving illegal entries from $table... " );
+
+ // SELECT DISTINCT( $field ) FROM $table LEFT JOIN page ON $field=page_id WHERE page_id IS NULL;
+ $results = $dbr->select( array( $table, 'page' ),
+ $field,
+ array( 'page_id' => null ),
+ __METHOD__,
+ 'DISTINCT',
+ array( 'page' => array( 'LEFT JOIN', "$field=page_id" ) )
+ );
+
+ $counter = 0;
+ $list = array();
+ $this->output( "0.." );
+
+ foreach ( $results as $row ) {
+ $counter++;
+ $list[] = $row->$field;
+ if ( ( $counter % $batchSize ) == 0 ) {
+ wfWaitForSlaves( 5 );
+ $dbw->delete( $table, array( $field => $list ), __METHOD__ );
+
+ $this->output( $counter . ".." );
+ $list = array();
+ }
+ }
+ $this->output( $counter );
+ if ( count( $list ) > 0 ) {
+ $dbw->delete( $table, array( $field => $list ), __METHOD__ );
+ }
+ $this->output( "\n" );
+ }
+ $lb->closeAll();
+ }
}
+
+$maintClass = 'RefreshLinks';
+require_once( RUN_MAINTENANCE_IF_MAIN );
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff