From c4a6ccb0be880e22a8f6a1cb33116299bbb7fd0c Mon Sep 17 00:00:00 2001
From: Martin Parsiegla <parsiegla@kuponjo.de>
Date: Thu, 23 Aug 2012 11:35:04 +0200
Subject: [PATCH] added new option "auto_clear_cache" so the cache_clearer can
 be disabled

---
 DependencyInjection/Configuration.php         |  1 +
 DependencyInjection/LiipImagineExtension.php  |  4 ++++
 README.md                                     |  8 +++++++-
 Resources/config/cache_clearer.xml            | 19 +++++++++++++++++++
 Resources/config/imagine.xml                  | 12 ------------
 .../LiipImagineExtensionTest.php              | 10 +++++++++-
 6 files changed, 40 insertions(+), 14 deletions(-)
 create mode 100644 Resources/config/cache_clearer.xml

diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 13147cf88..75e605796 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -32,6 +32,7 @@ public function getConfigTreeBuilder()
                 ->scalarNode('cache_prefix')->defaultValue('/media/cache')->end()
                 ->scalarNode('cache')->defaultValue('web_path')->end()
                 ->scalarNode('cache_base_path')->defaultValue('')->end()
+                ->booleanNode('auto_clear_cache')->defaultValue(true)->end()
                 ->scalarNode('data_loader')->defaultValue('filesystem')->end()
                 ->scalarNode('controller_action')->defaultValue('liip_imagine.controller:filterAction')->end()
                 ->arrayNode('formats')
diff --git a/DependencyInjection/LiipImagineExtension.php b/DependencyInjection/LiipImagineExtension.php
index cb5ce1729..5f1bd9021 100644
--- a/DependencyInjection/LiipImagineExtension.php
+++ b/DependencyInjection/LiipImagineExtension.php
@@ -25,6 +25,10 @@ public function load(array $configs, ContainerBuilder $container)
         $loader = new XmlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
         $loader->load('imagine.xml');
 
+        if ($config['auto_clear_cache']) {
+            $loader->load('cache_clearer.xml');
+        }
+
         $container->setAlias('liip_imagine', new Alias('liip_imagine.'.$config['driver']));
 
         $cachePrefix = $config['cache_prefix'] ? '/'.trim($config['cache_prefix'], '/') : '';
diff --git a/README.md b/README.md
index 7b8828824..a6e875597 100644
--- a/README.md
+++ b/README.md
@@ -169,6 +169,7 @@ liip_imagine:
     data_root:            %liip_imagine.web_root%
     cache_prefix:         /media/cache
     cache:                web_path
+    auto_clear_cache      true
     data_loader:          filesystem
     controller_action:    liip_imagine.controller:filterAction
     formats:              []
@@ -212,6 +213,11 @@ There are several configuration options available:
 
     default: web_path (which means the standard web_path resolver is used)
 
+ - `auto_clear_cache` - Whether or not to clear the image cache when the `kernel.cache_clearer` event occurs.
+    This option doesn't have any effect in symfony < 2.1
+
+    default: true
+
  - `data_loader` - name of a custom data loader
 
     default: filesystem (which means the standard filesystem loader is used)
@@ -454,7 +460,7 @@ liip_imagine:
                 my_custom_filter: { }
 ```
 
-Add loader to your services 
+Add loader to your services
 ``` xml
    <service id="liip_imagine.data.loader.grid_fs" class="Liip\ImagineBundle\Imagine\Data\Loader\GridFSLoader">
        <tag name="liip_imagine.data.loader" loader="grid_fs" />
diff --git a/Resources/config/cache_clearer.xml b/Resources/config/cache_clearer.xml
new file mode 100644
index 000000000..ad956c8d8
--- /dev/null
+++ b/Resources/config/cache_clearer.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<container xmlns="http://symfony.com/schema/dic/services"
+           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+           xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
+
+    <parameters>
+        <parameter key="liip_imagine.cache.clearer.class">Liip\ImagineBundle\Imagine\Cache\CacheClearer</parameter>
+    </parameters>
+
+    <services>
+
+        <service id="liip_imagine.cache.clearer" class="%liip_imagine.cache.clearer.class%">
+            <tag name="kernel.cache_clearer" />
+            <argument type="service" id="liip_imagine.cache.manager" />
+            <argument>%liip_imagine.cache_prefix%</argument>
+        </service>
+
+    </services>
+</container>
diff --git a/Resources/config/imagine.xml b/Resources/config/imagine.xml
index 481c19e73..0f8f9ad2e 100644
--- a/Resources/config/imagine.xml
+++ b/Resources/config/imagine.xml
@@ -48,10 +48,6 @@
         <parameter key="liip_imagine.cache.resolver.web_path.class">Liip\ImagineBundle\Imagine\Cache\Resolver\WebPathResolver</parameter>
         <parameter key="liip_imagine.cache.resolver.no_cache.class">Liip\ImagineBundle\Imagine\Cache\Resolver\NoCacheResolver</parameter>
 
-        <!-- Cache clearers' classes -->
-
-        <parameter key="liip_imagine.cache.clearer.class">Liip\ImagineBundle\Imagine\Cache\CacheClearer</parameter>
-
     </parameters>
 
     <services>
@@ -159,13 +155,5 @@
             <argument type="service" id="filesystem" />
         </service>
 
-        <!-- Cache Clearer -->
-
-        <service id="liip_imagine.cache.clearer" class="%liip_imagine.cache.clearer.class%">
-            <tag name="kernel.cache_clearer" />
-            <argument type="service" id="liip_imagine.cache.manager" />
-            <argument>%liip_imagine.cache_prefix%</argument>
-        </service>
-
     </services>
 </container>
diff --git a/Tests/DependencyInjection/LiipImagineExtensionTest.php b/Tests/DependencyInjection/LiipImagineExtensionTest.php
index f2c828ee5..adf1d4a79 100644
--- a/Tests/DependencyInjection/LiipImagineExtensionTest.php
+++ b/Tests/DependencyInjection/LiipImagineExtensionTest.php
@@ -50,7 +50,7 @@ public function testLoadWithDefaults()
 
     public function testCacheClearerRegistration()
     {
-        $this->createFullConfiguration();
+        $this->createEmptyConfiguration();
 
         if ('2' == Kernel::MAJOR_VERSION && '0' == Kernel::MINOR_VERSION) {
             $this->assertFalse($this->containerBuilder->hasDefinition('liip_imagine.cache.clearer'));
@@ -63,6 +63,13 @@ public function testCacheClearerRegistration()
         }
     }
 
+    public function testCacheClearerIsNotRegistered()
+    {
+        $this->createFullConfiguration();
+
+        $this->assertFalse($this->containerBuilder->hasDefinition('liip_imagine.cache.clearer'));
+    }
+
     /**
      * @return ContainerBuilder
      */
@@ -92,6 +99,7 @@ protected function getFullConfig()
 web_root: ../foo/bar
 cache_prefix: /imagine/cache
 cache: false
+auto_clear_cache: false
 formats: ['json', 'xml', 'jpg', 'png', 'gif']
 filter_sets:
     small: