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-rw-r--r--includes/job/RefreshLinksJob.php202
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diff --git a/includes/job/RefreshLinksJob.php b/includes/job/RefreshLinksJob.php
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--- a/includes/job/RefreshLinksJob.php
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-<?php
-/**
- * Job to update links for a given title.
- *
- * 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 JobQueue
- */
-
-/**
- * Background job to update links for a given title.
- *
- * @ingroup JobQueue
- */
-class RefreshLinksJob extends Job {
-
- function __construct( $title, $params = '', $id = 0 ) {
- parent::__construct( 'refreshLinks', $title, $params, $id );
- }
-
- /**
- * Run a refreshLinks job
- * @return boolean success
- */
- function run() {
- wfProfileIn( __METHOD__ );
-
- $linkCache = LinkCache::singleton();
- $linkCache->clear();
-
- if ( is_null( $this->title ) ) {
- $this->error = "refreshLinks: Invalid title";
- wfProfileOut( __METHOD__ );
- return false;
- }
-
- # Wait for the DB of the current/next slave DB handle to catch up to the master.
- # This way, we get the correct page_latest for templates or files that just changed
- # milliseconds ago, having triggered this job to begin with.
- if ( isset( $this->params['masterPos'] ) ) {
- wfGetLB()->waitFor( $this->params['masterPos'] );
- }
-
- $revision = Revision::newFromTitle( $this->title, false, Revision::READ_NORMAL );
- if ( !$revision ) {
- $this->error = 'refreshLinks: Article not found "' .
- $this->title->getPrefixedDBkey() . '"';
- wfProfileOut( __METHOD__ );
- return false; // XXX: what if it was just deleted?
- }
-
- self::runForTitleInternal( $this->title, $revision, __METHOD__ );
-
- wfProfileOut( __METHOD__ );
- return true;
- }
-
- public static function runForTitleInternal( Title $title, Revision $revision, $fname ) {
- global $wgParser, $wgContLang;
-
- wfProfileIn( $fname . '-parse' );
- $options = ParserOptions::newFromUserAndLang( new User, $wgContLang );
- $parserOutput = $wgParser->parse(
- $revision->getText(), $title, $options, true, true, $revision->getId() );
- wfProfileOut( $fname . '-parse' );
-
- wfProfileIn( $fname . '-update' );
- $updates = $parserOutput->getSecondaryDataUpdates( $title, false );
- DataUpdate::runUpdates( $updates );
- wfProfileOut( $fname . '-update' );
- }
-}
-
-/**
- * Background job to update links for a given title.
- * Newer version for high use templates.
- *
- * @ingroup JobQueue
- */
-class RefreshLinksJob2 extends Job {
- const MAX_TITLES_RUN = 10;
-
- function __construct( $title, $params, $id = 0 ) {
- parent::__construct( 'refreshLinks2', $title, $params, $id );
- }
-
- /**
- * Run a refreshLinks2 job
- * @return boolean success
- */
- function run() {
- wfProfileIn( __METHOD__ );
-
- $linkCache = LinkCache::singleton();
- $linkCache->clear();
-
- if ( is_null( $this->title ) ) {
- $this->error = "refreshLinks2: Invalid title";
- wfProfileOut( __METHOD__ );
- return false;
- } elseif ( !isset( $this->params['start'] ) || !isset( $this->params['end'] ) ) {
- $this->error = "refreshLinks2: Invalid params";
- wfProfileOut( __METHOD__ );
- return false;
- }
-
- // Back compat for pre-r94435 jobs
- $table = isset( $this->params['table'] ) ? $this->params['table'] : 'templatelinks';
-
- // Avoid slave lag when fetching templates
- if ( isset( $this->params['masterPos'] ) ) {
- $masterPos = $this->params['masterPos'];
- } elseif ( wfGetLB()->getServerCount() > 1 ) {
- $masterPos = wfGetLB()->getMasterPos();
- } else {
- $masterPos = false;
- }
-
- $titles = $this->title->getBacklinkCache()->getLinks(
- $table, $this->params['start'], $this->params['end'] );
-
- if ( $titles->count() > self::MAX_TITLES_RUN ) {
- # We don't want to parse too many pages per job as it can starve other jobs.
- # If there are too many pages to parse, break this up into smaller jobs. By passing
- # in the master position here we can cut down on the time spent waiting for slaves to
- # catch up by the runners handling these jobs since time will have passed between now
- # and when they pop these jobs off the queue.
- $start = 0; // batch start
- $end = 0; // batch end
- $bsize = 0; // batch size
- $first = true; // first of batch
- $jobs = array();
- foreach ( $titles as $title ) {
- $start = $first ? $title->getArticleId() : $start;
- $end = $title->getArticleId();
- $first = false;
- if ( ++$bsize >= self::MAX_TITLES_RUN ) {
- $jobs[] = new RefreshLinksJob2( $this->title, array(
- 'table' => $table,
- 'start' => $start,
- 'end' => $end,
- 'masterPos' => $masterPos
- ) );
- $first = true;
- $start = $end = $bsize = 0;
- }
- }
- if ( $bsize > 0 ) { // group remaining pages into a job
- $jobs[] = new RefreshLinksJob2( $this->title, array(
- 'table' => $table,
- 'start' => $start,
- 'end' => $end,
- 'masterPos' => $masterPos
- ) );
- }
- Job::batchInsert( $jobs );
- } elseif ( php_sapi_name() != 'cli' ) {
- # Not suitable for page load triggered job running!
- # Gracefully switch to refreshLinks jobs if this happens.
- $jobs = array();
- foreach ( $titles as $title ) {
- $jobs[] = new RefreshLinksJob( $title, array( 'masterPos' => $masterPos ) );
- }
- Job::batchInsert( $jobs );
- } else {
- # Wait for the DB of the current/next slave DB handle to catch up to the master.
- # This way, we get the correct page_latest for templates or files that just changed
- # milliseconds ago, having triggered this job to begin with.
- if ( $masterPos ) {
- wfGetLB()->waitFor( $masterPos );
- }
- # Re-parse each page that transcludes this page and update their tracking links...
- foreach ( $titles as $title ) {
- $revision = Revision::newFromTitle( $title, false, Revision::READ_NORMAL );
- if ( !$revision ) {
- $this->error = 'refreshLinks: Article not found "' .
- $title->getPrefixedDBkey() . '"';
- continue; // skip this page
- }
- RefreshLinksJob::runForTitleInternal( $title, $revision, __METHOD__ );
- wfWaitForSlaves();
- }
- }
-
- wfProfileOut( __METHOD__ );
- return true;
- }
-}