dumpIterator.php

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<?php
require_once( dirname( __FILE__ ) . '/Maintenance.php' );

abstract class DumpIterator extends Maintenance {

        private $count = 0;
        private $startTime;

        public function __construct() {
                parent::__construct();
                $this->mDescription = "Does something with a dump";
                $this->addOption( 'file', 'File with text to run.', false, true );
                $this->addOption( 'dump', 'XML dump to execute all revisions.', false, true );
                $this->addOption( 'from', 'Article from XML dump to start from.', false, true );
        }

        public function execute() {
                if (! ( $this->hasOption('file') ^ $this->hasOption('dump') ) ) {
                        $this->error("You must provide a file or dump", true);
                }

                $this->checkOptions();

                if ( $this->hasOption('file') ) {
                        $revision = new WikiRevision;

                        $revision->setText( file_get_contents( $this->getOption( 'file' ) ) );
                        $revision->setTitle( Title::newFromText( rawurldecode( basename( $this->getOption( 'file' ), '.txt' ) ) ) );
                        $this->handleRevision( $revision );
                        return;
                }

                $this->startTime = wfTime();

                if ( $this->getOption('dump') == '-' ) {
                        $source = new ImportStreamSource( $this->getStdin() );
                } else {
                        $this->error("Sorry, I don't support dump filenames yet. Use - and provide it on stdin on the meantime.", true);
                }
                $importer = new WikiImporter( $source );

                $importer->setRevisionCallback(
                        array( &$this, 'handleRevision' ) );

                $this->from = $this->getOption( 'from', null );
                $this->count = 0;
                $importer->doImport();

                $this->conclusions();

                $delta = wfTime() - $this->startTime;
                $this->error( "Done {$this->count} revisions in " . round($delta, 2) . " seconds " );
                if ($delta > 0)
                        $this->error( round($this->count / $delta, 2) . " pages/sec" );

                # Perform the memory_get_peak_usage() when all the other data has been output so there's no damage if it dies.
                # It is only available since 5.2.0 (since 5.2.1 if you haven't compiled with --enable-memory-limit)
                $this->error( "Memory peak usage of " . memory_get_peak_usage() . " bytes\n" );
        }

        public function finalSetup() {
                parent::finalSetup();

                if ( $this->getDbType() == Maintenance::DB_NONE ) {
                        global $wgUseDatabaseMessages, $wgLocalisationCacheConf, $wgHooks;
                        $wgUseDatabaseMessages = false;
                        $wgLocalisationCacheConf['storeClass'] =  'LCStore_Null';
                        $wgHooks['InterwikiLoadPrefix'][] = 'DumpIterator::disableInterwikis';
                }
        }

        static function disableInterwikis( $prefix, &$data ) {
                # Title::newFromText will check on each namespaced article if it's an interwiki.
                # We always answer that it is not.

                return false;
        }

        public function handleRevision( $rev ) {
                $title = $rev->getTitle();
                if ( !$title ) {
                        $this->error( "Got bogus revision with null title!" );
                        return;
                }

                $this->count++;
                if ( isset( $this->from ) ) {
                        if ( $this->from != $title )
                                return;
                        $this->output( "Skipped " . ($this->count - 1) . " pages\n" );

                        $this->count = 1;
                        $this->from = null;
                }

                $this->processRevision( $rev );
        }

        /* Stub function for processing additional options */
        public function checkOptions() {
                return;
        }

        /* Stub function for giving data about what was computed */
        public function conclusions() {
                return;
        }

        /* Core function which does whatever the maintenance script is designed to do */
        abstract public function processRevision( $rev );
}

class SearchDump extends DumpIterator {

        public function __construct() {
                parent::__construct();
                $this->mDescription = "Runs a regex in the revisions from a dump";
                $this->addOption( 'regex', 'Searching regex', true, true );
        }

        public function getDbType() {
                return Maintenance::DB_NONE;
        }

        public function processRevision( $rev ) {
                if ( preg_match( $this->getOption( 'regex' ), $rev->getText() ) ) {
                        $this->output( $rev->getTitle() . " matches at edit from " . $rev->getTimestamp() . "\n" );
                }
        }
}

$maintClass = "SearchDump";
require_once( RUN_MAINTENANCE_IF_MAIN );