From 23d35204cd28374701b79dc4190b4661b3f81c5f Mon Sep 17 00:00:00 2001
From: Chris Smith <chris.smith@widerplan.com>
Date: Fri, 10 Jan 2014 16:06:29 +0000
Subject: [PATCH] Bail out of the normal 401 handling routine when the origin
 is GitHub

---
 src/Composer/Util/RemoteFilesystem.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Composer/Util/RemoteFilesystem.php b/src/Composer/Util/RemoteFilesystem.php
index d3ecec03d..53829d03a 100644
--- a/src/Composer/Util/RemoteFilesystem.php
+++ b/src/Composer/Util/RemoteFilesystem.php
@@ -247,6 +247,11 @@ class RemoteFilesystem
                         throw new TransportException($message, 401);
                     }
 
+                    // GitHub requests bail out early to allow 2FA to be applied if requested.
+                    if ('github.com' === $this->originUrl) {
+                        throw new TransportException('The "'.$this->fileUrl.'" file could not be downloaded ('.trim($message).')', 401);
+                    }
+
                     $this->promptAuthAndRetry();
                     break;
                 }