From 51dd51849620e3fbbc9e7970d7efa8e273494082 Mon Sep 17 00:00:00 2001
From: Benoit Maziere <benoit.maziere@ekino.com>
Date: Mon, 5 Aug 2019 16:13:19 +0200
Subject: [PATCH] fix(tree builder): remove deprecation about configuration
 tree builder without a root node

---
 CHANGELOG.md                          |  1 +
 DependencyInjection/Configuration.php | 10 ++++++++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9c086d3..4e5e028 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,3 +14,4 @@ master
 * Fix Coveralls tool export
 * Fix badges
 * Disable audit of Log (cf. https://sonata-project.org/bundles/doctrine-orm-admin/master/doc/reference/audit.html)
+* Remove deprecation about configuration tree builder without a root node
diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 139dda6..20e9379 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -28,8 +28,14 @@ class Configuration implements ConfigurationInterface
      */
     public function getConfigTreeBuilder()
     {
-        $treeBuilder = new TreeBuilder();
-        $rootNode    = $treeBuilder->root('ekino_data_protection');
+        // Keep compatibility with symfony/config < 4.2
+        if (!method_exists(TreeBuilder::class, 'getRootNode')) {
+            $treeBuilder = new TreeBuilder();
+            $rootNode    = $treeBuilder->root('ekino_data_protection');
+        } else {
+            $treeBuilder = new TreeBuilder('ekino_data_protection');
+            $rootNode    = $treeBuilder->getRootNode();
+        }
 
         $rootNode
             ->children()