Return all the stderr messge after an error is detected for pull()

2 files changed, 20 insertions, 5 deletions

diff --git a/git/cmd.py b/git/cmd.py
index c29e3485..821bf299 100644
--- a/git/cmd.py
+++ b/git/cmd.py
@@ -307,7 +307,7 @@ class Git(LazyMixin):
         def __getattr__(self, attr):
             return getattr(self.proc, attr)
 
-        def wait(self, stderr=None):
+        def wait(self, stderr=''):
             """Wait for the process and return its status code.
 
             :param stderr: Previously read value of stderr, in case stderr is already closed.
@@ -317,7 +317,7 @@ class Git(LazyMixin):
 
             def read_all_from_possibly_closed_stream(stream):
                 try:
-                    return stream.read()
+                    return stderr + stream.read()
                 except ValueError:
                     return stderr or ''
 
@@ -678,7 +678,7 @@ class Git(LazyMixin):
                 # strip trailing "\n"
                 if stderr_value.endswith(b"\n"):
                     stderr_value = stderr_value[:-1]
-                status = proc.wait()
+                status = proc.wait(stderr=stderr_value)
             # END stdout handling
         finally:
             proc.stdout.close()
diff --git a/git/remote.py b/git/remote.py
index 30e32ae3..f23f50a2 100644
--- a/git/remote.py
+++ b/git/remote.py
@@ -570,11 +570,16 @@ class Remote(LazyMixin, Iterable):
 
         progress_handler = progress.new_message_handler()
 
+        error_message = None
+        stderr_text = None
+
         for line in proc.stderr:
             line = force_text(line)
             for pline in progress_handler(line):
                 if line.startswith('fatal:') or line.startswith('error:'):
-                    raise GitCommandError(("Error when fetching: %s" % line,), 2)
+                    error_message = "Error when fetching: %s" % (line,)
+                    break
+
                 # END handle special messages
                 for cmd in cmds:
                     if len(line) > 1 and line[0] == ' ' and line[1] == cmd:
@@ -582,9 +587,19 @@ class Remote(LazyMixin, Iterable):
                         continue
                     # end find command code
                 # end for each comand code we know
+
+            if error_message is not None:
+                break
             # end for each line progress didn't handle
+
+        if error_message is not None:
+            stderr_text = proc.stderr.read()
+
         # end
-        finalize_process(proc)
+        finalize_process(proc, stderr=stderr_text)
+
+        if error_message is not None:
+            raise GitCommandError( error_message, 2, stderr=stderr_text )
 
         # read head information
         fp = open(join(self.repo.git_dir, 'FETCH_HEAD'), 'rb')