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123 lines
3.6 KiB
123 lines
3.6 KiB
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Bundle\TwigBundle\CacheWarmer;
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use Symfony\Component\Finder\Finder;
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use Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerInterface;
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use Symfony\Component\DependencyInjection\ContainerInterface;
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use Symfony\Bundle\FrameworkBundle\CacheWarmer\TemplateFinderInterface;
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use Symfony\Component\Templating\TemplateReference;
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use Twig\Error\Error;
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/**
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* Generates the Twig cache for all templates.
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*
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* This warmer must be registered after TemplatePathsCacheWarmer,
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* as the Twig loader will need the cache generated by it.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class TemplateCacheCacheWarmer implements CacheWarmerInterface
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{
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protected $container;
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protected $finder;
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private $paths;
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/**
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* Constructor.
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*
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* @param ContainerInterface $container The dependency injection container
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* @param TemplateFinderInterface $finder The template paths cache warmer
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* @param array $paths Additional twig paths to warm
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*/
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public function __construct(ContainerInterface $container, TemplateFinderInterface $finder = null, array $paths = array())
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{
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// We don't inject the Twig environment directly as it depends on the
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// template locator (via the loader) which might be a cached one.
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// The cached template locator is available once the TemplatePathsCacheWarmer
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// has been warmed up.
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// But it can also be null if templating has been disabled.
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$this->container = $container;
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$this->finder = $finder;
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$this->paths = $paths;
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}
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/**
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* Warms up the cache.
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*
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* @param string $cacheDir The cache directory
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*/
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public function warmUp($cacheDir)
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{
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if (null === $this->finder) {
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return;
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}
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$twig = $this->container->get('twig');
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$templates = $this->finder->findAllTemplates();
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foreach ($this->paths as $path => $namespace) {
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$templates = array_merge($templates, $this->findTemplatesInFolder($namespace, $path));
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}
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foreach ($templates as $template) {
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if ('twig' !== $template->get('engine')) {
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continue;
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}
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try {
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$twig->loadTemplate($template);
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} catch (Error $e) {
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// problem during compilation, give up
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}
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}
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}
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/**
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* Checks whether this warmer is optional or not.
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*
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* @return bool always true
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*/
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public function isOptional()
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{
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return true;
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}
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/**
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* Find templates in the given directory.
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*
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* @param string $namespace The namespace for these templates
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* @param string $dir The folder where to look for templates
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*
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* @return array An array of templates of type TemplateReferenceInterface
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*/
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private function findTemplatesInFolder($namespace, $dir)
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{
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if (!is_dir($dir)) {
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return array();
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}
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$templates = array();
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$finder = new Finder();
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foreach ($finder->files()->followLinks()->in($dir) as $file) {
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$name = $file->getRelativePathname();
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$templates[] = new TemplateReference(
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$namespace ? sprintf('@%s/%s', $namespace, $name) : $name,
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'twig'
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);
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}
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return $templates;
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}
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}
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