When cloning git repo, checkout master

This makes test suite pass again, when the (real!) obnam
git repo I have locally doesn't have master checked out.

2 files changed, 9 insertions, 1 deletions

diff --git a/NEWS b/NEWS
index cba39cf..45c57a9 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,12 @@
 NEWS file for obbench
 =====================
 
+Version 0.9, released UNRELEASED
+--------------------------------
+
+* Fix clone of git repo to check out master, to fix test suite when
+  the Obnam git repo doesn't have master checked out.
+
 Version 0.8, released 2016-02-06
 --------------------------------
 
diff --git a/obbench b/obbench
index 13c875a..f719cad 100755
--- a/obbench
+++ b/obbench
@@ -57,7 +57,9 @@ class ObnamBenchmarker(cliapp.Application):
         if os.path.exists(gitdir):
             cliapp.runcmd(['git', 'pull'], cwd=gitdir)
         else:
-            cliapp.runcmd(['git', 'clone', spec['git'], gitdir])
+            cliapp.runcmd(
+                ['git', 'clone', '-b', 'master', spec['git'],
+                 gitdir])
 
     def gitdir(self, statedir):
         return os.path.join(statedir, 'git')