Add twig helper functions to check if entrypoint has files

Author: acrobat

src/Twig/EntryFilesTwigExtension.php

@@ -12,6 +12,7 @@
 use Psr\Container\ContainerInterface;
 use Symfony\WebpackEncoreBundle\Asset\EntrypointLookupInterface;
 use Symfony\WebpackEncoreBundle\Asset\TagRenderer;
+use Symfony\WebpackEncoreBundle\Exception\EntrypointNotFoundException;
 use Twig\Extension\AbstractExtension;
 use Twig\TwigFunction;
 
@@ -31,6 +32,7 @@ public function getFunctions(): array
             new TwigFunction('encore_entry_css_files', [$this, 'getWebpackCssFiles']),
             new TwigFunction('encore_entry_script_tags', [$this, 'renderWebpackScriptTags'], ['is_safe' => ['html']]),
             new TwigFunction('encore_entry_link_tags', [$this, 'renderWebpackLinkTags'], ['is_safe' => ['html']]),
+            new TwigFunction('encore_entry_exists', [$this, 'entryExists']),
         ];
     }
 
@@ -58,6 +60,19 @@ public function renderWebpackLinkTags(string $entryName, string $packageName = n
             ->renderWebpackLinkTags($entryName, $packageName, $entrypointName, $attributes);
     }
 
+    public function entryExists(string $entryName, string $entrypointName = '_default'): bool
+    {
+        try {
+            $entrypointLookup = $this->getEntrypointLookup($entrypointName);
+            $entrypointLookup->getJavaScriptFiles($entryName);
+            $entrypointLookup->reset();
+
+            return true;
+        } catch (EntrypointNotFoundException $e) {
+            return false;
+        }
+    }
+
     private function getEntrypointLookup(string $entrypointName): EntrypointLookupInterface
     {
         return $this->container->get('webpack_encore.entrypoint_lookup_collection')