Merge branch '2.7' into 2.8

* 2.7:
  Compatibility with Twig 1.27
  Enhance GAE compat by removing some realpath()
  bumped Symfony version to 2.7.21
  updated VERSION for 2.7.20
  update CONTRIBUTORS for 2.7.20
  updated CHANGELOG for 2.7.20
  [SecurityBundle] Fix twig-bridge lowest dep

Author: nicolas-grekas

DependencyInjection/FrameworkExtension.php

@@ -52,7 +52,7 @@ class FrameworkExtension extends Extension
      */
     public function load(array $configs, ContainerBuilder $container)
     {
-        $loader = new XmlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
+        $loader = new XmlFileLoader($container, new FileLocator(dirname(__DIR__).'/Resources/config'));
 
         $loader->load('web.xml');
         $loader->load('services.xml');
@@ -693,7 +693,7 @@ private function registerTranslatorConfiguration(array $config, ContainerBuilder
         if (class_exists('Symfony\Component\Security\Core\Exception\AuthenticationException')) {
             $r = new \ReflectionClass('Symfony\Component\Security\Core\Exception\AuthenticationException');
 
-            $dirs[] = dirname($r->getFileName()).'/../Resources/translations';
+            $dirs[] = dirname(dirname($r->getFileName())).'/Resources/translations';
         }
         $rootDir = $container->getParameter('kernel.root_dir');
         foreach ($container->getParameter('kernel.bundles') as $bundle => $class) {
@@ -824,21 +824,21 @@ private function getValidatorMappingFiles(ContainerBuilder $container)
             $dirname = dirname($reflection->getFileName());
 
             if (is_file($file = $dirname.'/Resources/config/validation.xml')) {
-                $files[0][] = realpath($file);
+                $files[0][] = $file;
                 $container->addResource(new FileResource($file));
             }
 
             if (is_file($file = $dirname.'/Resources/config/validation.yml')) {
-                $files[1][] = realpath($file);
+                $files[1][] = $file;
                 $container->addResource(new FileResource($file));
             }
 
             if (is_dir($dir = $dirname.'/Resources/config/validation')) {
                 foreach (Finder::create()->files()->in($dir)->name('*.xml') as $file) {
-                    $files[0][] = $file->getRealPath();
+                    $files[0][] = $file->getPathname();
                 }
                 foreach (Finder::create()->files()->in($dir)->name('*.yml') as $file) {
-                    $files[1][] = $file->getRealPath();
+                    $files[1][] = $file->getPathname();
                 }
 
                 $container->addResource(new DirectoryResource($dir));
@@ -946,15 +946,15 @@ private function registerSerializerConfiguration(array $config, ContainerBuilder
             $dirname = dirname($reflection->getFileName());
 
             if (is_file($file = $dirname.'/Resources/config/serialization.xml')) {
-                $definition = new Definition('Symfony\Component\Serializer\Mapping\Loader\XmlFileLoader', array(realpath($file)));
+                $definition = new Definition('Symfony\Component\Serializer\Mapping\Loader\XmlFileLoader', array($file));
                 $definition->setPublic(false);
 
                 $serializerLoaders[] = $definition;
                 $container->addResource(new FileResource($file));
             }
 
             if (is_file($file = $dirname.'/Resources/config/serialization.yml')) {
-                $definition = new Definition('Symfony\Component\Serializer\Mapping\Loader\YamlFileLoader', array(realpath($file)));
+                $definition = new Definition('Symfony\Component\Serializer\Mapping\Loader\YamlFileLoader', array($file));
                 $definition->setPublic(false);
 
                 $serializerLoaders[] = $definition;
@@ -963,13 +963,13 @@ private function registerSerializerConfiguration(array $config, ContainerBuilder
 
             if (is_dir($dir = $dirname.'/Resources/config/serialization')) {
                 foreach (Finder::create()->files()->in($dir)->name('*.xml') as $file) {
-                    $definition = new Definition('Symfony\Component\Serializer\Mapping\Loader\XmlFileLoader', array($file->getRealPath()));
+                    $definition = new Definition('Symfony\Component\Serializer\Mapping\Loader\XmlFileLoader', array($file->getPathname()));
                     $definition->setPublic(false);
 
                     $serializerLoaders[] = $definition;
                 }
                 foreach (Finder::create()->files()->in($dir)->name('*.yml') as $file) {
-                    $definition = new Definition('Symfony\Component\Serializer\Mapping\Loader\YamlFileLoader', array($file->getRealPath()));
+                    $definition = new Definition('Symfony\Component\Serializer\Mapping\Loader\YamlFileLoader', array($file->getPathname()));
                     $definition->setPublic(false);
 
                     $serializerLoaders[] = $definition;
@@ -1042,7 +1042,7 @@ private function getKernelRootHash(ContainerBuilder $container)
      */
     public function getXsdValidationBasePath()
     {
-        return __DIR__.'/../Resources/config/schema';
+        return dirname(__DIR__).'/Resources/config/schema';
     }
 
     public function getNamespace()

Tests/DependencyInjection/FrameworkExtensionTest.php

@@ -371,11 +371,11 @@ public function testValidationPaths()
             // Testing symfony/framework-bundle with deps=high
             $this->assertStringEndsWith('symfony'.DIRECTORY_SEPARATOR.'form/Resources/config/validation.xml', $xmlMappings[0]);
         }
-        $this->assertStringEndsWith('TestBundle'.DIRECTORY_SEPARATOR.'Resources'.DIRECTORY_SEPARATOR.'config'.DIRECTORY_SEPARATOR.'validation.xml', $xmlMappings[1]);
+        $this->assertStringEndsWith('TestBundle/Resources/config/validation.xml', $xmlMappings[1]);
 
         $yamlMappings = $calls[4][1][0];
         $this->assertCount(1, $yamlMappings);
-        $this->assertStringEndsWith('TestBundle'.DIRECTORY_SEPARATOR.'Resources'.DIRECTORY_SEPARATOR.'config'.DIRECTORY_SEPARATOR.'validation.yml', $yamlMappings[0]);
+        $this->assertStringEndsWith('TestBundle/Resources/config/validation.yml', $yamlMappings[0]);
     }
 
     public function testValidationNoStaticMethod()