GitRunCommand exception can store stdout output too.

Some git commands, like git merge outputs their problems onto stdout,
instead of stderr, which will be thrown away by the current setup. This
change allows the GitPython commands to store the stdout's value too,
in case of error.

1 files changed, 4 insertions, 1 deletions

diff --git a/git/cmd.py b/git/cmd.py
index b3274dd8..5323a63c 100644
--- a/git/cmd.py
+++ b/git/cmd.py
@@ -380,7 +380,10 @@ class Git(LazyMixin):
         # END handle debug printing
 
         if with_exceptions and status != 0:
-            raise GitCommandError(command, status, stderr_value)
+            if with_extended_output:
+                raise GitCommandError(command, status, stderr_value, stdout_value)
+            else:
+                raise GitCommandError(command, status, stderr_value)
 
         # Allow access to the command's status code
         if with_extended_output: