Discard stderr output from git-rev-parse

This gets rid of the annoying "fatal: Needed a single revision"
messages that were printed in addition to StGit's own error message.

Signed-off-by: Karl Hasselström <kha@treskal.com>

diff --git a/stgit/git.py b/stgit/git.py
index 0026fd86fe1969aed5625d96f10ff4b34f60d91d..812b77a4ccb2781b56b22404738a3b1ad2f86593 100644 (file)
--- a/stgit/git.py
+++ b/stgit/git.py
@@ -301,7 +301,8 @@ def rev_parse(git_id):
     """Parse the string and return a verified SHA1 id
     """
     try:
-        return GRun('git-rev-parse', '--verify', git_id).output_one_line()
+        return GRun('git-rev-parse', '--verify', git_id
+                    ).discard_stderr().output_one_line()
     except GitRunException:
         raise GitException, 'Unknown revision: %s' % git_id