updateLexerList.php

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<?php
use MediaWiki\Shell\Shell;
 
$IP = getenv( 'MW_INSTALL_PATH' ) ?: __DIR__ . '/../../..';
 
require_once "$IP/maintenance/Maintenance.php";
 
class UpdateLexerList extends Maintenance {
    public function __construct() {
        parent::__construct();
 
        $this->requireExtension( 'SyntaxHighlight' );
        $this->addDescription( 'Update list of lexers supported by SyntaxHighlight_GeSHi' );
    }
 
    public function execute() {
        function lang_filter( $val ) {
            return preg_match( '/^[a-zA-Z0-9\-_]+$/', $val );
        }
 
        $header = '// Generated by ' . basename( __FILE__ ) . "\n\n";
 
        $lexers = [];
 
        $result = Shell::command(
            SyntaxHighlight::getPygmentizePath(),
            '-L', 'lexer'
        )
            ->restrict( Shell::RESTRICT_DEFAULT | Shell::NO_NETWORK )
            ->execute();
 
        if ( $result->getExitCode() != 0 ) {
            throw new \RuntimeException( $result->getStderr() );
        }
 
        $output = $result->getStdout();
        foreach ( explode( "\n", $output ) as $line ) {
            if ( substr( $line, 0, 1 ) === '*' ) {
                $newLexers = explode( ', ', trim( $line, "* :\n" ) );
                $lexers = array_merge( $lexers, $newLexers );
            }
        }
        $lexers = array_unique( $lexers );
        sort( $lexers );
 
        $code = "<?php\n" .  $header .  'return ' . var_export( $lexers, true ) . ";\n";
        $code = preg_replace( '/(\d+ \=>| (?=\‍())/i', '', $code );
        $code = preg_replace( "/^ +/m", "\t", $code );
 
        file_put_contents( __DIR__ . '/../SyntaxHighlight.lexers.php', $code );
        $this->output( "Updated language list written to SyntaxHighlight.lexers.php\n" );
    }
}
 
$maintClass = 'UpdateLexerList';
require_once RUN_MAINTENANCE_IF_MAIN;