PHRAS-4011 : Moving cmd from console to setup - system:clear-cache system:clear-session (#4460)

* cmd clear cache in bin/setup

* Change maintenance state wording

lib/Alchemy/Phrasea/Command/Setup/SystemClearCacheCommand.php

@@ -0,0 +1,51 @@
+<?php
+
+/*
+ * This file is part of Phraseanet
+ *
+ * (c) 2005-2016 Alchemy
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Alchemy\Phrasea\Command\Setup;
+
+use Alchemy\Phrasea\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Finder\Finder;
+
+class SystemClearCacheCommand extends Command
+{
+
+    public function __construct()
+    {
+        parent::__construct('system:clear-cache');
+
+        $this->setDescription('Empties cache directories and cache-server data');
+
+        return $this;
+    }
+
+    protected function doExecute(InputInterface $input, OutputInterface $output)
+    {
+        $finder = new Finder();
+
+        $in = $this->container['cache.paths']->getArrayCopy();
+        $finder
+            ->exclude('.git')
+            ->exclude('.svn')
+            ->in($in);
+
+        $this->container['filesystem']->remove($finder);
+
+        if ($this->container['phraseanet.configuration-tester']->isInstalled()) {
+            $this->getService('phraseanet.cache-service')->flushAll();
+        }
+
+        $output->write('Finished !', true);
+
+        return 0;
+    }
+}