Added support for CPIO

Author: raulfraile

src/Format/Cpio.php

@@ -0,0 +1,39 @@
+<?php
+
+/*
+ * This file is part of the Distill package.
+ *
+ * (c) Raul Fraile <raulfraile@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Distill\Format;
+
+class Cpio extends AbstractFormat
+{
+    /**
+     * {@inheritdoc}
+     */
+    public static function getCompressionRatioLevel()
+    {
+        return FormatInterface::RATIO_LEVEL_MIDDLE;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public static function getExtensions()
+    {
+        return ['cpio'];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public static function getClass()
+    {
+        return get_class();
+    }
+}

src/Format/Shar.php

@@ -0,0 +1,39 @@
+<?php
+
+/*
+ * This file is part of the Distill package.
+ *
+ * (c) Raul Fraile <raulfraile@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Distill\Format;
+
+class Shar extends AbstractFormat
+{
+    /**
+     * {@inheritdoc}
+     */
+    public static function getCompressionRatioLevel()
+    {
+        return FormatInterface::RATIO_LEVEL_MIDDLE;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public static function getExtensions()
+    {
+        return ['shar'];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public static function getClass()
+    {
+        return get_class();
+    }
+}

src/Method/Command/x7zip.php

@@ -94,6 +94,7 @@ public function isFormatSupported(Format\FormatInterface $format)
             $format instanceof Format\Bz2  ||
             $format instanceof Format\Cab  ||
             $format instanceof Format\Chm  ||
+            $format instanceof Format\Cpio ||
             $format instanceof Format\Deb  ||
             $format instanceof Format\Dmg  ||
             $format instanceof Format\Gz   ||