only create a range url when we have commits

1 files changed, 9 insertions, 5 deletions

diff --git a/modules/git_webhooks/github.py b/modules/git_webhooks/github.py
index 777e8ca8..7e3db56b 100644
--- a/modules/git_webhooks/github.py
+++ b/modules/git_webhooks/github.py
@@ -184,13 +184,17 @@ class GitHub(object):
         branch = utils.irc.color(branch, colors.COLOR_BRANCH)
         author = utils.irc.bold(data["pusher"]["name"])
 
-        first_id = data["before"]
-        last_id = data["commits"][-1]["id"]
-        range_url = self._short_url(
-            COMMIT_RANGE_URL % (full_name, first_id, last_id))
+        range_url = None
+        if len(data["commits"]):
+            first_id = data["before"]
+            last_id = data["commits"][-1]["id"]
+            range_url = self._short_url(
+                COMMIT_RANGE_URL % (full_name, first_id, last_id))
+
+        single_url = COMMIT_URL % (full_name, "%s"),
 
         return self._format_push(branch, author, data["commits"],
-            data["forced"], COMMIT_URL % (full_name, "%s"), range_url)
+            data["forced"], single_url, range_url)
 
     def _format_push(self, branch, author, commits, forced, single_url,
             range_url):