Implement a caching mechanism

src/Kernel.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace Krzysiej\RyobiCrawler;
+
+use Krzysiej\RyobiCrawler\Twig\AppExtension;
+use Symfony\Bundle\FrameworkBundle\FrameworkBundle;
+use Symfony\Bundle\FrameworkBundle\Kernel\MicroKernelTrait;
+use Symfony\Bundle\TwigBundle\TwigBundle;
+use Symfony\Component\Cache\Adapter\FilesystemAdapter;
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+use Symfony\Component\DependencyInjection\Reference;
+use Symfony\Component\HttpKernel\Kernel as BaseKernel;
+use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
+use Twig\Extra\Cache\CacheExtension;
+use Twig\Extra\Cache\CacheRuntime;
+use Twig\Extra\TwigExtraBundle\TwigExtraBundle;
+
+class Kernel extends BaseKernel
+{
+    use MicroKernelTrait;
+
+    public function registerBundles(): iterable
+    {
+        return [
+            new FrameworkBundle(),
+            new TwigBundle(),
+            new TwigExtraBundle(),
+        ];
+    }
+
+    protected function configureContainer(ContainerConfigurator $container): void
+    {
+        $container->extension('framework', [
+            'secret' => 'S0ME_SECRET'
+        ]);
+        $services = $container->services()->defaults()->autowire()->autoconfigure();
+        $services->load('Krzysiej\\RyobiCrawler\\Controller\\', __DIR__ . '/Controller/*');
+        $services->load('Krzysiej\\RyobiCrawler\\Command\\', __DIR__ . '/Command/*')->tag('console.command');
+        $services->set('twig.extension.cache', AppExtension::class)->tag('twig.extension');
+        $services->set(CacheExtension::class)->tag('twig.extension');
+        $services->set(FilesystemAdapter::class)->args([
+                '',      // namespace
+                0,       // default lifetime
+                __DIR__ . '/../var/cache/twig_blocks'  // custom path
+            ]);
+        $services->set('twig.runtime.cache', CacheRuntime::class)->args([new Reference(FilesystemAdapter::class)])->tag('twig.runtime');
+    }
+
+    protected function configureRoutes(RoutingConfigurator $routes): void
+    {
+        $routes->import(__DIR__ . '/Controller/', 'attribute');
+    }
+}