/usr/share/php/Symfony/Bundle/TwigBundle/CacheWarmer/TemplateCacheCacheWarmer.php is in php-symfony-twig-bundle 2.3.21+dfsg-4+deb8u3.
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/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Bundle\TwigBundle\CacheWarmer;
use Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Bundle\FrameworkBundle\CacheWarmer\TemplateFinderInterface;
/**
* Generates the Twig cache for all templates.
*
* This warmer must be registered after TemplatePathsCacheWarmer,
* as the Twig loader will need the cache generated by it.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class TemplateCacheCacheWarmer implements CacheWarmerInterface
{
protected $container;
protected $finder;
/**
* Constructor.
*
* @param ContainerInterface $container The dependency injection container
* @param TemplateFinderInterface $finder The template paths cache warmer
*/
public function __construct(ContainerInterface $container, TemplateFinderInterface $finder)
{
// We don't inject the Twig environment directly as it depends on the
// template locator (via the loader) which might be a cached one.
// The cached template locator is available once the TemplatePathsCacheWarmer
// has been warmed up
$this->container = $container;
$this->finder = $finder;
}
/**
* Warms up the cache.
*
* @param string $cacheDir The cache directory
*/
public function warmUp($cacheDir)
{
$twig = $this->container->get('twig');
foreach ($this->finder->findAllTemplates() as $template) {
if ('twig' !== $template->get('engine')) {
continue;
}
try {
$twig->loadTemplate($template);
} catch (\Twig_Error $e) {
// problem during compilation, give up
}
}
}
/**
* Checks whether this warmer is optional or not.
*
* @return bool always true
*/
public function isOptional()
{
return true;
}
}
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