Upgraded to Symfony 2.1-beta2

vendor/sensio/distribution-bundle/Sensio/Bundle/DistributionBundle/Upgrader/Upgrader.php

@@ -0,0 +1,59 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Sensio\Bundle\DistributionBundle\Upgrade;
+
+use Sensio\Bundle\DistributionBundle\Diff\Diff;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * Upgrade class.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Upgrade
+{
+    public function outputConsoleDiff(OutputInterface $output, $file1, $file2)
+    {
+        if (is_file($file1)) {
+            $file1 = realpath($file1);
+            $str1 = file_get_contents($file1);
+        } else {
+            $str1 = '';
+        }
+
+        if (!is_file($file2)) {
+            throw new \RuntimeException(sprintf('The skeleton file "%s" does not exist.', $file2));
+        }
+        $file2 = realpath($file2);
+        $str2 = file_get_contents($file2);
+
+        $diff = new Diff($str1, $str2);
+
+        $output->writeln(sprintf('--- %s', $file1));
+        $output->writeln(sprintf('+++ %s', $file2));
+        foreach ($diff->getDiff() as $line) {
+            if ('+' == $line[0]) {
+                $format = '<fg=green>+%s</>';
+            } elseif ('-' == $line[0]) {
+                $format = '<fg=red>-%s</>';
+            } elseif ('@' == $line[0]) {
+                $format = '<fg=cyan>@%s</>';
+            } else {
+                $format = ' %s';
+            }
+
+            $output->writeln(sprintf($format, $line[1]));
+        }
+
+        $output->writeln('');
+    }
+}