yaml-tests.php

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<?php
// Standard boilerplate to define $IP
if ( getenv( 'MW_INSTALL_PATH' ) !== false ) {
    $IP = getenv( 'MW_INSTALL_PATH' );
} else {
    $dir = __DIR__;
    $IP = "$dir/../../..";
}
require_once "$IP/maintenance/Maintenance.php";

class YamlTests extends Maintenance {
    public function __construct() {
        parent::__construct();
        $this->mDescription = 'Script for comparing supported YAML parser implementations.';
    }

    public function execute() {
        global $wgTranslateGroupFiles, $wgTranslateYamlLibrary;
        $documents = array();
        $times = array();
        $mems = array();
        $mempeaks = array();

        foreach ( array( 'syck', 'spyc', 'syck-pecl' ) as $driver ) {
            $mempeaks[$driver] = -memory_get_peak_usage( true );
            $mems[$driver] = -memory_get_usage( true );
            $times[$driver] = -microtime( true );
            $wgTranslateYamlLibrary = $driver;
            $documents[$driver] = array();
            foreach ( $wgTranslateGroupFiles as $file ) {
                foreach ( self::parseGroupFile( $file ) as $id => $docu ) {
                    $documents[$driver]["$file-$id"] = $docu;
                }
            }

            $times[$driver] += microtime( true );
            $mems[$driver] += memory_get_usage( true );
            $mempeaks[$driver] += memory_get_peak_usage( true );

            self::sortNestedArrayAssoc( $documents[$driver] );
            file_put_contents( "yaml-test-$driver.txt", var_export( $documents[$driver], true ) );
        }
        var_dump( $times );
        var_dump( $mems );
        var_dump( $mempeaks );
    }

    public static function parseGroupFile( $filename ) {
        $data = file_get_contents( $filename );
        $documents = preg_split( "/^---$/m", $data, -1, PREG_SPLIT_NO_EMPTY );
        $groups = array();
        $template = false;
        foreach ( $documents as $document ) {
            $document = TranslateYaml::loadString( $document );
            if ( isset( $document['TEMPLATE'] ) ) {
                $template = $document['TEMPLATE'];
            } else {
                if ( !isset( $document['BASIC']['id'] ) ) {
                    trigger_error( "No path ./BASIC/id (group id not defined) " .
                        "in yaml document located in $filename" );
                    continue;
                }
                $groups[$document['BASIC']['id']] = $document;
            }
        }

        foreach ( $groups as $i => $group ) {
            $groups[$i] = TranslateYaml::mergeTemplate( $template, $group );
        }

        return $groups;
    }

    public static function sortNestedArrayAssoc( &$a ) {
        ksort( $a );
        foreach ( $a as &$value ) {
            if ( is_array( $value ) ) {
                self::sortNestedArrayAssoc( $value );
            }
        }
    }
}

$maintClass = 'YamlTests';
require_once RUN_MAINTENANCE_IF_MAIN;