increase hash_directory_level and add gzcompress before save

Author: GordonLesti

app/code/community/Lesti/Fpc/Model/Adminhtml/System/Config/Source/Gzcompress.php

@@ -0,0 +1,44 @@
+<?php
+/**
+ * Lesti_Fpc (http:gordonlesti.com/lestifpc)
+ *
+ * PHP version 5
+ *
+ * @link      https://github.com/GordonLesti/Lesti_Fpc
+ * @package   Lesti_Fpc
+ * @author    Gordon Lesti <info@gordonlesti.com>
+ * @copyright Copyright (c) 2013-2014 Gordon Lesti (http://gordonlesti.com)
+ * @license   http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ */
+
+/**
+ * Class Lesti_Fpc_Model_Adminhtml_System_Config_Source_Gzcompress
+ */
+class Lesti_Fpc_Model_Adminhtml_System_Config_Source_Gzcompress
+{
+    /**
+     * @return array
+     */
+    public function toOptionArray()
+    {
+        $options = array();
+        foreach ($this->toArray() as $key => $value) {
+            $options[] = array('value' => $key, 'label' => $value);
+        }
+
+        return $options;
+    }
+
+    /**
+     * @return array
+     */
+    public function toArray()
+    {
+        $options = array(-2 => Mage::helper('fpc')->__('No'));
+        for ($i=0; $i <10; $i++) {
+            $options[$i] = $i;
+        }
+
+        return $options;
+    }
+}

app/code/community/Lesti/Fpc/Model/Fpc.php

@@ -16,6 +16,7 @@
  */
 class Lesti_Fpc_Model_Fpc extends Mage_Core_Model_Cache
 {
+    const GZCOMPRESS_LEVEL_XML_PATH = 'system/fpc/gzcompress_level';
     const CACHE_TAG = 'FPC';
 
     /**
@@ -24,7 +25,7 @@ class Lesti_Fpc_Model_Fpc extends Mage_Core_Model_Cache
      * @var array
      */
     protected $_defaultBackendOptions = array(
-        'hashed_directory_level'    => 3,
+        'hashed_directory_level'    => 6,
         'hashed_directory_perm'    => 0777,
         'file_name_prefix'          => 'fpc',
     );
@@ -36,7 +37,7 @@ class Lesti_Fpc_Model_Fpc extends Mage_Core_Model_Cache
      * @var array
      */
     protected $_legacyDefaultBackendOptions = array(
-        'hashed_directory_level'    => 3,
+        'hashed_directory_level'    => 6,
         'hashed_directory_umask'    => 0777,
         'file_name_prefix'          => 'fpc',
     );
@@ -90,15 +91,35 @@ public function save($data, $id, $tags=array(), $lifeTime=null)
         $id = $cacheData->getCacheId();
         $tags = $cacheData->getTags();
         $lifeTime = $cacheData->getLifeTime();
+
+        $compressLevel = Mage::getStoreConfig(self::GZCOMPRESS_LEVEL_XML_PATH);
+        if ($compressLevel != -2) {
+            $data = gzcompress($data, $compressLevel);
+        }
 
         return $this->_frontend->save(
-            (string)$data,
+            $data,
             $this->_id($id),
             $this->_tags($tags),
             $lifeTime
         );
     }
 
+    /**
+     * @param string $id
+     * @return string
+     */
+    public function load($id)
+    {
+        $data = parent::load($id);
+        $compressLevel = Mage::getStoreConfig(self::GZCOMPRESS_LEVEL_XML_PATH);
+        if ($compressLevel != -2) {
+            $data = gzuncompress($data);
+        }
+
+        return $data;
+    }
+
     /**
      * Clean cached data by specific tag
      *

app/code/community/Lesti/Fpc/etc/config.xml

@@ -253,6 +253,7 @@ display_mode]]></session_params>
                 <customer_groups>0</customer_groups>
                 <use_recently_viewed_products>0</use_recently_viewed_products>
                 <show_age>1</show_age>
+                <gzcompress_level>-2</gzcompress_level>
             </fpc>
         </system>
     </default>

app/code/community/Lesti/Fpc/etc/system.xml

@@ -125,6 +125,16 @@
                             <show_in_website>1</show_in_website>
                             <show_in_store>1</show_in_store>
                         </show_age>
+                        <gzcompress_level>
+                            <label>gzcompress Level</label>
+                            <frontend_type>select</frontend_type>
+                            <comment>Compress the cache (only for filecache, flush Lesti_Fpc after changing value)</comment>
+                            <source_model>fpc/adminhtml_system_config_source_gzcompress</source_model>
+                            <sort_order>100</sort_order>
+                            <show_in_default>1</show_in_default>
+                            <show_in_website>1</show_in_website>
+                            <show_in_store>1</show_in_store>
+                        </gzcompress_level>
                     </fields>
                 </fpc>
             </groups>