inc/3rdparty/Twig/Gettext/Extractor.php

   1 <?php
   2
   3 /**
   4  * This file is part of the Twig Gettext utility.
   5  *
   6  *  (c) Саша Стаменковић <umpirsky@gmail.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Twig\Gettext;
  13
  14 use Symfony\Component\Filesystem\Filesystem;
  15
  16 /**
  17  * Extracts translations from twig templates.
  18  *
  19  * @author Саша Стаменковић <umpirsky@gmail.com>
  20  */
  21 class Extractor
  22 {
  23     /**
  24      * @var \Twig_Environment
  25      */
  26     protected $environment;
  27
  28     /**
  29      * Template cached file names.
  30      *
  31      * @var string[]
  32      */
  33     protected $templates;
  34
  35     /**
  36      * Gettext parameters.
  37      *
  38      * @var string[]
  39      */
  40     protected $parameters;
  41
  42     public function __construct(\Twig_Environment $environment)
  43     {
  44         $this->environment = $environment;
  45         $this->reset();
  46     }
  47
  48     protected function reset()
  49     {
  50         $this->templates = array();
  51         $this->parameters = array();
  52     }
  53
  54     public function addTemplate($path)
  55     {
  56         $this->environment->loadTemplate($path);
  57         $this->templates[] = $this->environment->getCacheFilename($path);
  58     }
  59
  60     public function addGettextParameter($parameter)
  61     {
  62         $this->parameters[] = $parameter;
  63     }
  64
  65     public function setGettextParameters(array $parameters)
  66     {
  67         $this->parameters = $parameters;
  68     }
  69
  70     public function extract()
  71     {
  72         $command = 'xgettext';
  73         $command .= ' '.join(' ', $this->parameters);
  74         $command .= ' '.join(' ', $this->templates);
  75
  76         $error = 0;
  77         $output = system($command, $error);
  78         if (0 !== $error) {
  79             throw new \RuntimeException(sprintf(
  80                 'Gettext command "%s" failed with error code %s and output: %s',
  81                 $command,
  82                 $error,
  83                 $output
  84             ));
  85         }
  86
  87         $this->reset();
  88     }
  89
  90     public function __destruct()
  91     {
  92         $filesystem = new Filesystem();
  93         $filesystem->remove($this->environment->getCache());
  94     }
  95 }