getText.php

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<?php
use MediaWiki\Revision\RevisionRecord;
use MediaWiki\Revision\SlotRecord;
use MediaWiki\Title\Title;
 
require_once __DIR__ . '/Maintenance.php';
 
class GetTextMaint extends Maintenance {
    public function __construct() {
        parent::__construct();
        $this->addDescription( 'Outputs page text to stdout' );
        $this->addOption( 'show-private', 'Show the text even if it\'s not available to the public' );
        $this->addArg( 'title', 'Page title' );
        $this->addOption( 'revision', 'Revision ID', false, true );
    }
 
    public function execute() {
        $titleText = $this->getArg( 0 );
        $title = Title::newFromText( $titleText );
        if ( !$title ) {
            $this->fatalError( "$titleText is not a valid title.\n" );
        }
 
        if ( !$title->exists() ) {
            $titleText = $title->getPrefixedText();
            $this->fatalError( "Page $titleText does not exist.\n" );
        }
 
        $revId = (int)$this->getOption( 'revision', $title->getLatestRevID() );
 
        $rev = $this->getServiceContainer()
            ->getRevisionLookup()
            ->getRevisionByTitle( $title, $revId );
 
        if ( !$rev ) {
            $titleText = $title->getPrefixedText();
            $this->fatalError( "Could not load revision $revId of $titleText.\n" );
        }
 
        $audience = $this->hasOption( 'show-private' ) ?
            RevisionRecord::RAW :
            RevisionRecord::FOR_PUBLIC;
        $content = $rev->getContent( SlotRecord::MAIN, $audience );
 
        if ( $content === null ) {
            $titleText = $title->getPrefixedText();
            $this->fatalError( "Couldn't extract the text from $titleText.\n" );
        }
        $this->output( $content->serialize() );
 
        if ( stream_isatty( STDOUT ) ) {
            // When writing to a TTY, add a linebreak, to keep the terminal output tidy.
            // Wikitext will generally not have a trailing newline.
            $this->output( "\n" );
        }
    }
}
 
$maintClass = GetTextMaint::class;
require_once RUN_MAINTENANCE_IF_MAIN;