Only run make in obnam branch if Makefile exists.

1 files changed, 3 insertions, 2 deletions

diff --git a/seivot b/seivot
index d7b2991..54bdca1 100755
--- a/seivot
+++ b/seivot
@@ -194,8 +194,9 @@ class Obnam(BackupProgram):
 
     def prepare(self):
         if self._branch:
-            logging.info('Building obnam in %s' % self._branch)
-            runcmd(['make'], cwd=self._branch)
+            if os.path.exists(os.path.join(self._branch, 'Makefile')):
+                logging.info('Building obnam in %s' % self._branch)
+                runcmd(['make'], cwd=self._branch)
     
     def backup(self, nth_gen):
         return self._run(['backup', self.live_data], nth_gen)[0]