From f6ba2f86cc811a150bec72d638691bd34d1808a8 Mon Sep 17 00:00:00 2001
From: Luke Rodgers <lukerodgers90@gmail.com>
Date: Mon, 13 May 2024 15:29:39 +0100
Subject: [PATCH] Output stderr when in debug mode

Some parts of the build process may output to `stderr` without failing the pipeline.

For example static content deploy does it here
https://github.com/magento/magento2/blob/2.4-develop/app/code/Magento/Deploy/Service/DeployPackage.php#L144-L147

If you have an issue that you want to debug and you set `MIN_LOGGING_LEVEL: debug` then I think it is unexpected that this data would not be present
---
 src/Shell/Shell.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Shell/Shell.php b/src/Shell/Shell.php
index 4aeab77457..b1565b4943 100644
--- a/src/Shell/Shell.php
+++ b/src/Shell/Shell.php
@@ -106,6 +106,9 @@ private function handleOutput(ProcessInterface $process)
             if ($output = $process->getOutput()) {
                 $this->logger->debug($output);
             }
+            if ($errorOutput = $process->getErrorOutput()) {
+                $this->logger->debug('Error: ' . $errorOutput);
+            }
         } catch (LogicException $exception) {
             $this->logger->error('Can\'t get command output: ' . $exception->getMessage());
         }