From 3b1e225f73971a95a3da47f7d1b3dfc7b5765176 Mon Sep 17 00:00:00 2001
From: Pierre-Yves Chibon <pingou@pingoured.fr>
Date: Thu, 3 May 2018 10:39:51 +0200
Subject: [PATCH] Add missing get_default_branch

---
 roles/git/hooks/files/post-receive-alternativearch | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/roles/git/hooks/files/post-receive-alternativearch b/roles/git/hooks/files/post-receive-alternativearch
index 7bc4a9a6a0..403ce815eb 100755
--- a/roles/git/hooks/files/post-receive-alternativearch
+++ b/roles/git/hooks/files/post-receive-alternativearch
@@ -100,6 +100,15 @@ def get_revs_between(oldrev, newrev, abspath, refname):
     return read_git_lines(cmd, abspath)
 
 
+def get_default_branch(abspath):
+    """ Return the default branch of a repo. """
+    cmd = ['rev-parse', '--abbrev-ref', 'HEAD']
+    out = read_git_lines(cmd, abspath)
+    if out:
+        return out[0]
+    else:
+        return 'master'
+
 
 def send_email(text, subject, to_mail):  # pragma: no cover
     ''' Send an email with the specified information.