[StGit PATCH 7/8] Discard stderr output from git-rev-parse

From: Karl Hasselström <kha@treskal.com>
Date: Oct 7, 2007, 23:17 UTC
Message-ID: <20071007231753.12626.35320.stgit@yoghurt>
In-Reply-To: <20071007231446.12626.14259.stgit@yoghurt>

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>

---

 stgit/git.py |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/stgit/git.py b/stgit/git.py
index 0026fd8..812b77a 100644
--- 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