twig-gettext-extractor

#!/usr/bin/env php
<?php

/**
 * This file is part of the Twig Gettext utility.
 *
 *  (c) Саша Стаменковић <umpirsky@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

use Twig\Gettext\Util\DebugLogger;


// Init composer
if (file_exists($a = __DIR__.'/../../autoload.php')) {
    require_once $a;
} else {
    require_once __DIR__.'/vendor/autoload.php';
}

// Init twig + core extensions
$twig = new Twig_Environment(new Twig\Gettext\Loader\Filesystem(DIRECTORY_SEPARATOR), array(
    'cache'       => implode(DIRECTORY_SEPARATOR, array(sys_get_temp_dir(), 'cache', uniqid()) ),
    'auto_reload' => true
));

$twig->addExtension(new Twig_Extensions_Extension_I18n());

// Read argv for config
array_shift($_SERVER['argv']);

$argvReadingTemplates = false;
$argvReadingFilters = false;

$resetArgv = function () use (&$argvReadingFilters, &$argvReadingTemplates) {
    $argvReadingFilters = false;
    $argvReadingTemplates = false;
};

try {
    $extractor = new Twig\Gettext\Extractor($twig);

    /**
     * Syntax for argv:
     *
     * twig-gettext-extractor <xgettext arguments> <extractor arguments>
     *
     * xgettext arguments can be "--sort-output", "--force-po", etc and are processed directly.
     * extractor arguments are specific to the twig extractor
     *
     * --files          Add a template file to the list of files that need to be extracted.
     * --filters        Add a dummy filter that is custom to the project to prevent the extractor breaking.
     */

    foreach ($_SERVER['argv'] as $argument) {
        // Command starters ------------------------------------------------------------------------------------------------
        if ($argument === '--filters') {
            $resetArgv();
            $argvReadingFilters = true;
            continue;
        }

        if ($argument === '--files') {
            $resetArgv();
            $argvReadingTemplates = true;
            continue;
        }

        // Command parameters ----------------------------------------------------------------------------------------------
        if ($argvReadingFilters) {
            // We are in a --filters statement
            $twig->addFilter(new Twig_SimpleFilter($argument, function ($input) {
                return $input;
            }));
        } else if ($argvReadingTemplates) {
            // We are in a --files statement
            $extractor->addTemplate(getcwd() . DIRECTORY_SEPARATOR . $argument);
        } else {
            // We are not in a statement, process as gettext parameter
            $extractor->addGettextParameter($argument);
        }
    }

    $extractor->extract();
} catch (Exception $ex) {
    DebugLogger::log("A Twig gettext extractor run has failed with an exception.");
    DebugLogger::log("Command: " . print_r($argv, true));
    DebugLogger::log("Exception: " . print_r($ex, true));

    exit(-1); // Die with a non zero exit code so poedit knows we failed
}