From 5b91a90c34a85f4f651d1f0436fb08f2f5d82c7c Mon Sep 17 00:00:00 2001
From: Andrei Zhemaituk <a.zhemoytuk@gmail.com>
Date: Wed, 23 Feb 2022 18:24:55 -0500
Subject: [PATCH] Print out child process command output on error #663

A small addition to print out actual error details on child process failure. Refer to #663 for issues details, when build fail for one or another reason, usually connected to configuration error and not library error, but no details are printed out.
---
 lib/pip.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib/pip.js b/lib/pip.js
index 7a0a0ceb..79dec42a 100644
--- a/lib/pip.js
+++ b/lib/pip.js
@@ -415,6 +415,13 @@ async function installRequirements(targetFolder, pluginInstance) {
             'PYTHON_REQUIREMENTS_COMMAND_NOT_FOUND'
           );
         }
+        if (log) {
+          log.info(`Stdout: ${e.stdoutBuffer}`);
+          log.info(`Stderr: ${e.stderrBuffer}`);
+        } else {
+          serverless.cli.log(`Stdout: ${e.stdoutBuffer}`);
+          serverless.cli.log(`Stderr: ${e.stderrBuffer}`);
+        }
         throw e;
       }
     }