[7.x] Added missing symfony/mime suggest (#33067)

* Added missing symfony/mime suggest

* Update Filesystem.php

Co-authored-by: Taylor Otwell <[email protected]>

Author: GrahamCampbell

src/Illuminate/Filesystem/Filesystem.php

@@ -6,6 +6,7 @@
 use FilesystemIterator;
 use Illuminate\Contracts\Filesystem\FileNotFoundException;
 use Illuminate\Support\Traits\Macroable;
+use RuntimeException;
 use Symfony\Component\Finder\Finder;
 use Symfony\Component\Mime\MimeTypes;
 
@@ -321,6 +322,12 @@ public function extension($path)
      */
     public function guessExtension($path)
     {
+        if (! class_exists(MimeTypes::class)) {
+            throw new RuntimeException(
+                'To enable support for guessing extensions, please install the symfony/mime package.'
+            );
+        }
+
         return (new MimeTypes)->getExtensions($this->mimeType($path))[0] ?? null;
     }
 

src/Illuminate/Filesystem/composer.json

@@ -35,7 +35,8 @@
         "league/flysystem-aws-s3-v3": "Required to use the Flysystem S3 driver (^1.0).",
         "league/flysystem-cached-adapter": "Required to use the Flysystem cache (^1.0).",
         "league/flysystem-sftp": "Required to use the Flysystem SFTP driver (^1.0).",
-        "psr/http-message": "Required to allow Storage::put to accept a StreamInterface (^1.0)."
+        "psr/http-message": "Required to allow Storage::put to accept a StreamInterface (^1.0).",
+        "symfony/mime": "Required to enable support for guessing extensions (^5.0)."
     },
     "config": {
         "sort-packages": true