Don't use GitPython for authors check

I hit this issue with an older GitPython version:

  https://bugzilla.redhat.com/740852

Seeing as all GitPython is doing for us is running:

  $> git rev-list --pretty=raw HEAD

and parsing the output, I figure it's just as easy for us to run git
directly.

Change-Id: Ib43e2346c7d4c47e7776919f2b9c982133628129

1 files changed, 5 insertions, 10 deletions

diff --git a/nova/tests/test_misc.py b/nova/tests/test_misc.py
index c5875a843..45c496568 100644
--- a/nova/tests/test_misc.py
+++ b/nova/tests/test_misc.py
@@ -14,6 +14,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import commands
 import errno
 import os
 import select
@@ -67,19 +68,13 @@ class ProjectTestCase(test.TestCase):
                 tree.unlock()
 
         elif os.path.exists(os.path.join(topdir, '.git')):
-            import git
-            repo = git.Repo(topdir)
-            for commit in repo.head.commit.iter_parents():
-                email = commit.author.email
-                if email is None:
-                    email = commit.author.name
-                if 'nova-core' in email:
+            for email in commands.getoutput('git log --format=%ae').split():
+                if not email:
+                    continue
+                if "jenkins@review.openstack.org" in email:
                     continue
-                if email.split(' ')[-1] == '<>':
-                    email = email.split(' ')[-2]
                 email = '<' + email + '>'
                 contributors.add(str_dict_replace(email, mailmap))
-
         else:
             return