From 71b6e5affa107e1c45ada7261b1444a684f44f6f Mon Sep 17 00:00:00 2001
From: Pierre-Yves Chibon <pingou@pingoured.fr>
Date: Dec 09 2016 14:24:25 +0000
Subject: Fix the git blame view when the committer has no name


In the git tree of the linux kernel, the commit `febf7ea4bedcd36fba0843db726bba28d22bf89a`
has for author ``Author:  <sam@mars.ravnborg.org>`` which, as you can see,
has no name specified.
This makes pygit2 un-happy and basically makes it crash.

In this commit, we work around the issue by not specifying an user if
the committer did not use one.

---

diff --git a/pagure/ui/filters.py b/pagure/ui/filters.py
index 1226d22..4f7efdb 100644
--- a/pagure/ui/filters.py
+++ b/pagure/ui/filters.py
@@ -291,9 +291,14 @@ def blame_loc(loc, repo, username, blame):
             % ({'cnt': idx + 1})
         )
 
+        committer = None
+        try:
+            committer = diff.orig_committer
+        except ValueError:
+            pass
         output.append(
-            '<td class="cell_user">%s</td>' % author_to_user(
-                diff.orig_committer, with_name=False)
+            '<td class="cell_user">%s</td>' % (author_to_user(
+                committer, with_name=False) if committer else ' ')
         )
 
         output.append(