From ed43a3efb4a4da61bc9cc000bb6d71c4e77440db Mon Sep 17 00:00:00 2001
From: Aleksei Egorov <countzero@php.net>
Date: Tue, 22 Feb 2022 21:22:02 +0300
Subject: [PATCH] fixes #877 composer update is giving an error

---
 src/Configurator/DockerComposeConfigurator.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Configurator/DockerComposeConfigurator.php b/src/Configurator/DockerComposeConfigurator.php
index aba4f60dd..f14a4a8da 100644
--- a/src/Configurator/DockerComposeConfigurator.php
+++ b/src/Configurator/DockerComposeConfigurator.php
@@ -259,7 +259,7 @@ private function configureDockerCompose(Recipe $recipe, array $config, bool $upd
                 }
 
                 // Keep end in memory (check break line on previous line)
-                $endAt[$node] = '' !== trim($lines[$i - 1]) ? $i : $i - 1;
+                $endAt[$node] = $i && '' !== trim($lines[$i - 1]) ? $i : $i - 1;
                 $node = $matches[1];
                 if (!isset($nodesLines[$node])) {
                     $nodesLines[$node] = [];