init without trunk

vendor/gregwar/image-bundle/DependencyInjection/Configuration.php

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+<?php
+
+/**
+ * @Author: Michał Kurzeja, Accesto
+ * User: michal
+ * Date: 24.09.13
+ * Time: 10:18
+ */
+namespace Gregwar\ImageBundle\DependencyInjection;
+
+use Symfony\Component\Config\Definition\Builder\TreeBuilder;
+use Symfony\Component\Config\Definition\ConfigurationInterface;
+
+class Configuration implements ConfigurationInterface
+{
+    public function getConfigTreeBuilder()
+    {
+        $treeBuilder = new TreeBuilder('gregwar_image');
+        $rootNode = method_exists(TreeBuilder::class, 'getRootNode') ? 
+            $treeBuilder->getRootNode() : $treeBuilder->root('gregwar_image');
+
+        $rootNode
+            ->children()
+            ->scalarNode('cache_dir')->defaultValue('cache')->end()
+            ->scalarNode('cache_dir_mode')->defaultNull()->example('0755')->end()
+            ->booleanNode('throw_exception')->defaultFalse()->end()
+            ->scalarNode('fallback_image')->defaultNull()->end()
+            ->scalarNode('web_dir')->defaultValue('%kernel.root_dir%/../web')->end()
+            ->end()
+            ;
+
+        return $treeBuilder;
+    }
+}

vendor/gregwar/image-bundle/DependencyInjection/GregwarImageExtension.php

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+<?php
+
+namespace Gregwar\ImageBundle\DependencyInjection;
+
+use Symfony\Component\Config\FileLocator;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
+use Symfony\Component\HttpKernel\DependencyInjection\Extension;
+
+/**
+ * Loading configuration.
+ *
+ * @author Gregwar <g.passault@gmail.com>
+ */
+class GregwarImageExtension extends Extension
+{
+    public function load(array $configs, ContainerBuilder $container)
+    {
+        $configuration = new Configuration();
+        $config = $this->processConfiguration($configuration, $configs);
+
+        $container->setParameter('gregwar_image.cache_dir', $config['cache_dir']);
+        $container->setParameter('gregwar_image.cache_dir_mode', $config['cache_dir_mode']);
+        $container->setParameter('gregwar_image.throw_exception', $config['throw_exception']);
+        $container->setParameter('gregwar_image.fallback_image', $config['fallback_image']);
+        $container->setParameter('gregwar_image.web_dir', $config['web_dir']);
+
+        $loader = new YamlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
+        $loader->load('services.yml');
+    }
+}