Merge branch '3.2' into 3.3

* 3.2:
  fixed bad merge
  [Cache] Handle APCu failures gracefully
  [FrameworkBundle] Do not remove files from assets dir
  bumped Symfony version to 3.2.11
  updated VERSION for 3.2.10
  updated CHANGELOG for 3.2.10
  bumped Symfony version to 2.8.24
  updated VERSION for 2.8.23
  updated CHANGELOG for 2.8.23
  bumped Symfony version to 2.7.31
  updated VERSION for 2.7.30
  update CONTRIBUTORS for 2.7.30
  updated CHANGELOG for 2.7.30

Author: nicolas-grekas

Command/AssetsInstallCommand.php

@@ -121,7 +121,9 @@ protected function execute(InputInterface $input, OutputInterface $output)
                 continue;
             }
 
-            $targetDir = $bundlesDir.preg_replace('/bundle$/', '', strtolower($bundle->getName()));
+            $assetDir = preg_replace('/bundle$/', '', strtolower($bundle->getName()));
+            $targetDir = $bundlesDir.$assetDir;
+            $validAssetDirs[] = $assetDir;
 
             if (OutputInterface::VERBOSITY_VERBOSE <= $output->getVerbosity()) {
                 $message = sprintf("%s\n-> %s", $bundle->getName(), $targetDir);
@@ -153,14 +155,10 @@ protected function execute(InputInterface $input, OutputInterface $output)
                 $exitCode = 1;
                 $rows[] = array(sprintf('<fg=red;options=bold>%s</>', '\\' === DIRECTORY_SEPARATOR ? 'ERROR' : "\xE2\x9C\x98" /* HEAVY BALLOT X (U+2718) */), $message, $e->getMessage());
             }
-            $validAssetDirs[] = $targetDir;
         }
         // remove the assets of the bundles that no longer exist
-        foreach (new \FilesystemIterator($bundlesDir) as $dir) {
-            if (!in_array($dir, $validAssetDirs)) {
-                $this->filesystem->remove($dir);
-            }
-        }
+        $dirsToRemove = Finder::create()->depth(0)->directories()->exclude($validAssetDirs)->in($bundlesDir);
+        $this->filesystem->remove($dirsToRemove);
 
         $io->table(array('', 'Bundle', 'Method / Error'), $rows);