validate.php

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<?php
if ( PHP_SAPI != 'cli' ) {
    die( "Run me from the command line please.\n" );
}
 
if ( !isset( $argv[1] ) ) {
    print "Usage: php {$argv[0]} <filename>\n";
    exit( 1 );
}
array_shift( $argv );
 
define( 'MEDIAWIKI', 1 );
define( 'NOT_REALLY_MEDIAWIKI', 1 );
 
$IP = __DIR__ . '/../..';
 
require_once "$IP/includes/Defines.php";
require_once "$IP/languages/Language.php";
 
$files = array();
foreach ( $argv as $arg ) {
    $files = array_merge( $files, glob( $arg ) );
}
 
foreach ( $files as $filename ) {
    print "$filename...";
    $vars = getVars( $filename );
    $keys = array_keys( $vars );
    $diff = array_diff( $keys, Language::$mLocalisationKeys );
    if ( $diff ) {
        print "\nWarning: unrecognised variable(s): " . implode( ', ', $diff ) . "\n";
    } else {
        print " ok\n";
    }
}
 
function getVars( $filename ) {
    require $filename;
    $vars = get_defined_vars();
    unset( $vars['filename'] );
 
    return $vars;
}