142 lines
5 KiB
PHP
142 lines
5 KiB
PHP
<?php
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/**
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* Take page text out of an XML dump file and render basic HTML out to files.
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* This is *NOT* suitable for publishing or offline use; it's intended for
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* running comparative tests of parsing behavior using real-world data.
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*
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* Templates etc are pulled from the local wiki database, not from the dump.
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*
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* Copyright (C) 2011 Platonides - http://www.mediawiki.org/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Maintenance
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*/
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require_once( dirname( __FILE__ ) . '/dumpIterator.php' );
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class CompareParsers extends DumpIterator {
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private $count = 0;
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public function __construct() {
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parent::__construct();
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$this->saveFailed = false;
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$this->mDescription = "Run a file or dump with several parsers";
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$this->addOption( 'parser1', 'The first parser to compare.', true, true );
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$this->addOption( 'parser2', 'The second parser to compare.', true, true );
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$this->addOption( 'tidy', 'Run tidy on the articles.', false, false );
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$this->addOption( 'save-failed', 'Folder in which articles which differ will be stored.', false, true );
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$this->addOption( 'show-diff', 'Show a diff of the two renderings.', false, false );
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$this->addOption( 'diff-bin', 'Binary to use for diffing (can also be provided by DIFF env var).', false, false );
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$this->addOption( 'strip-parameters', 'Remove parameters of html tags to increase readability.', false, false );
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$this->addOption( 'show-parsed-output', 'Show the parsed html if both Parsers give the same output.', false, false );
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}
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public function checkOptions() {
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if ( $this->hasOption('save-failed') ) {
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$this->saveFailed = $this->getOption('save-failed');
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}
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$this->stripParametersEnabled = $this->hasOption( 'strip-parameters' );
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$this->showParsedOutput = $this->hasOption( 'show-parsed-output' );
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$this->showDiff = $this->hasOption( 'show-diff' );
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if ( $this->showDiff ) {
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$bin = $this->getOption( 'diff-bin', getenv( 'DIFF' ) );
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if ( $bin != '' ) {
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global $wgDiff;
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$wgDiff = $bin;
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}
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}
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$user = new User();
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$this->options = ParserOptions::newFromUser( $user );
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if ( $this->hasOption( 'tidy' ) ) {
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global $wgUseTidy;
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if ( !$wgUseTidy ) {
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$this->error( 'Tidy was requested but $wgUseTidy is not set in LocalSettings.php', true );
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}
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$this->options->setTidy( true );
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}
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$this->failed = 0;
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}
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public function conclusions() {
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$this->error( "{$this->failed} failed revisions out of {$this->count}" );
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if ($this->count > 0)
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$this->output( " (" . ( $this->failed / $this->count ) . "%)\n" );
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}
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function stripParameters( $text ) {
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if ( !$this->stripParametersEnabled ) {
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return $text;
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}
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return preg_replace( '/(<a) [^>]+>/', '$1>', $text );
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}
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/**
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* Callback function for each revision, parse with both parsers and compare
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* @param $rev Revision
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*/
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public function processRevision( $rev ) {
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$title = $rev->getTitle();
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$parser1Name = $this->getOption( 'parser1' );
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$parser2Name = $this->getOption( 'parser2' );
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self::checkParserLocally( $parser1Name );
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self::checkParserLocally( $parser2Name );
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$parser1 = new $parser1Name();
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$parser2 = new $parser2Name();
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$output1 = $parser1->parse( $rev->getText(), $title, $this->options );
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$output2 = $parser2->parse( $rev->getText(), $title, $this->options );
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if ( $output1->getText() != $output2->getText() ) {
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$this->failed++;
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$this->error( "Parsing for {$title->getPrefixedText()} differs\n" );
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if ( $this->saveFailed ) {
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file_put_contents( $this->saveFailed . '/' . rawurlencode( $title->getPrefixedText() ) . ".txt", $rev->getText());
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}
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if ( $this->showDiff ) {
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$this->output( wfDiff( $this->stripParameters( $output1->getText() ), $this->stripParameters( $output2->getText() ), '' ) );
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}
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} else {
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$this->output( $title->getPrefixedText() . "\tOK\n" );
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if ( $this->showParsedOutput ) {
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$this->output( $this->stripParameters( $output1->getText() ) );
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}
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}
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}
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private static function checkParserLocally( $parserName ) {
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/* Look for the parser in a file appropiately named in the current folder */
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if ( !class_exists( $parserName ) && file_exists( "$parserName.php" ) ) {
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global $wgAutoloadClasses;
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$wgAutoloadClasses[ $parserName ] = realpath( '.' ) . "/$parserName.php";
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}
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}
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}
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$maintClass = "CompareParsers";
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require_once( RUN_MAINTENANCE_IF_MAIN );
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