From bf45edb8b10e7082bfcbdb2016fd752a12ee2dab Mon Sep 17 00:00:00 2001
From: Mike McLean <mikem@redhat.com>
Date: Jul 10 2014 17:02:52 +0000
Subject: return value


---

diff --git a/diff-git b/diff-git
index 319c938..9018e90 100755
--- a/diff-git
+++ b/diff-git
@@ -79,6 +79,7 @@ def get_output(cmd, fatal=True, **kwargs):
 
 def main():
     heads = []
+    retval = 0
     for repo in options.repos:
         cmd = ['git', 'ls-remote', '--heads', repo]
         output, rv = get_output(cmd, stderr='null', fatal=True)
@@ -90,16 +91,19 @@ def main():
     dropped = [h for h in heads[0] if h not in heads[1]]
     if added:
         logger.warning('Added %i heads:', len(added))
+        retval = 1
         for h in added:
             logger.warning('+ %s', h)
     if dropped:
         logger.warning('Dropped %i heads:', len(dropped))
+        retval = 1
         for h in dropped:
             logger.warning('- %s', h)
     changed = []
     if common:
         for h in common:
             if heads[0][h] != heads[1][h]:
+                retval = 1
                 changed.append(h)
                 logger.warning('Head %s differs:', h)
                 logger.warning('  %s', heads[0][h])
@@ -138,6 +142,7 @@ def main():
             logger.warning('Head %s has deviated', h)
         #shutil.rmtree(workdir)
         #XXX
+    return retval
 
 
 if __name__ == '__main__':
@@ -157,4 +162,5 @@ if __name__ == '__main__':
     handler.setFormatter(logging.Formatter('%(asctime)s [%(levelname)s] %(message)s'))
     handler.setLevel(logging.DEBUG)
     logger.addHandler(handler)
-    main()
+    rv = main()
+    sys.exit(rv)