version.php

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<?php
require_once __DIR__ . '/Maintenance.php';
 
class Version extends Maintenance {
    public function __construct() {
        parent::__construct();
        $this->addDescription( 'Prints the current version of MediaWiki' );
    }
 
    public function execute() {
        if ( !defined( 'MW_VERSION' ) ) {
            $this->fatalError( "MediaWiki version not defined or unknown" );
        }
 
        global $IP;
        $contentLang = \MediaWiki\MediaWikiServices::getInstance()->getContentLanguage();
 
        $version = MW_VERSION;
        $strictVersion = substr( $version, 0, 4 );
        $isLTS = false;
 
        // See: https://www.mediawiki.org/wiki/Topic:U4u94htjqupsosea
        if ( $strictVersion >= '1.19' ) {
            $x = (float)explode( '.', $strictVersion )[1];
            $isLTS = ( $x - 19 ) % 4 === 0;
        }
 
        // Get build date and append if available
        $gitInfo = new GitInfo( $IP );
        $gitHeadCommitDate = $gitInfo->getHeadCommitDate();
        $buildDate = $contentLang->timeanddate( (string)$gitHeadCommitDate, true );
 
        $text = "MediaWiki version: " . $version;
        if ( $isLTS ) {
            $text .= " LTS";
        }
        if ( $buildDate ) {
            $text .= " (built: $buildDate)";
        }
 
        $this->output( $text . "\n" );
    }
}
 
$maintClass = Version::class;
require_once RUN_MAINTENANCE_IF_MAIN;