Merge branch '7.1' into 7.2

* 7.1:
  [Finder] Fix using `==` as default operator in `DateComparator`
  [HttpFoundation] Avoid mime type guess with temp files in `BinaryFileResponse`
  choose the correctly cased class name for the MariaDB platform

Author: fabpot

src/Symfony/Component/Finder/Comparator/DateComparator.php

@@ -36,7 +36,7 @@ public function __construct(string $test)
             throw new \InvalidArgumentException(\sprintf('"%s" is not a valid date.', $matches[2]));
         }
 
-        $operator = $matches[1] ?? '==';
+        $operator = $matches[1] ?: '==';
         if ('since' === $operator || 'after' === $operator) {
             $operator = '>';
         }

src/Symfony/Component/Finder/Tests/Comparator/DateComparatorTest.php

@@ -59,6 +59,7 @@ public static function getTestData()
             ['after 2005-10-10', [strtotime('2005-10-15')], [strtotime('2005-10-09')]],
             ['since 2005-10-10', [strtotime('2005-10-15')], [strtotime('2005-10-09')]],
             ['!= 2005-10-10', [strtotime('2005-10-11')], [strtotime('2005-10-10')]],
+            ['2005-10-10', [strtotime('2005-10-10')], [strtotime('2005-10-11')]],
         ];
     }
 }

src/Symfony/Component/HttpFoundation/BinaryFileResponse.php

@@ -189,7 +189,12 @@ public function prepare(Request $request): static
         }
 
         if (!$this->headers->has('Content-Type')) {
-            $this->headers->set('Content-Type', $this->file->getMimeType() ?: 'application/octet-stream');
+            $mimeType = null;
+            if (!$this->tempFileObject) {
+                $mimeType = $this->file->getMimeType();
+            }
+
+            $this->headers->set('Content-Type', $mimeType ?: 'application/octet-stream');
         }
 
         parent::prepare($request);

src/Symfony/Component/HttpFoundation/Tests/BinaryFileResponseTest.php

@@ -468,4 +468,15 @@ public function testSetChunkSizeTooSmall()
 
         $response->setChunkSize(0);
     }
+
+    public function testCreateFromTemporaryFileWithoutMimeType()
+    {
+        $file = new \SplTempFileObject();
+        $file->fwrite('foo,bar');
+
+        $response = new BinaryFileResponse($file);
+        $response->prepare(new Request());
+
+        $this->assertSame('application/octet-stream', $response->headers->get('Content-Type'));
+    }
 }

src/Symfony/Component/Messenger/Bridge/Doctrine/Tests/Transport/ConnectionTest.php

@@ -15,7 +15,6 @@
 use Doctrine\DBAL\Connection as DBALConnection;
 use Doctrine\DBAL\Exception as DBALException;
 use Doctrine\DBAL\Platforms\AbstractPlatform;
-use Doctrine\DBAL\Platforms\MariaDb1060Platform;
 use Doctrine\DBAL\Platforms\MariaDBPlatform;
 use Doctrine\DBAL\Platforms\MySQL57Platform;
 use Doctrine\DBAL\Platforms\MySQL80Platform;
@@ -591,9 +590,16 @@ class_exists(MySQLPlatform::class) ? new MySQLPlatform() : new MySQL57Platform()
             'SELECT m.* FROM messenger_messages m WHERE (m.queue_name = ?) AND (m.delivered_at is null OR m.delivered_at < ?) AND (m.available_at <= ?) ORDER BY available_at ASC LIMIT 1 FOR UPDATE',
         ];
 
-        if (class_exists(MariaDb1060Platform::class)) {
+        if (interface_exists(DBALException::class)) {
+            // DBAL 4+
+            $mariaDbPlatformClass = 'Doctrine\DBAL\Platforms\MariaDB1060Platform';
+        } else {
+            $mariaDbPlatformClass = 'Doctrine\DBAL\Platforms\MariaDb1060Platform';
+        }
+
+        if (class_exists($mariaDbPlatformClass)) {
             yield 'MariaDB106' => [
-                new MariaDb1060Platform(),
+                new $mariaDbPlatformClass(),
                 'SELECT m.* FROM messenger_messages m WHERE (m.queue_name = ?) AND (m.delivered_at is null OR m.delivered_at < ?) AND (m.available_at <= ?) ORDER BY available_at ASC LIMIT 1 FOR UPDATE SKIP LOCKED',
             ];
         }