From 6c38daffe55abe63462cf72d4a48eaceabd466c7 Mon Sep 17 00:00:00 2001
From: Thomas Bechtold <tbechtold@suse.com>
Date: Wed, 13 Apr 2016 09:56:44 +0200
Subject: [PATCH] Fix doc build if git is absent

When building packages if git is absent, then we should not set
html_last_updated_fmt. It can still be set via the -D switch
when building with sphinx-build.

Change-Id: I9f833ed6c9881803702466775895c1ad63d0d21d
Closes-Bug: #1552251
---
 doc/source/conf.py | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/doc/source/conf.py b/doc/source/conf.py
index 50c08b001..9d9ac368e 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -30,6 +30,7 @@
 import os
 import subprocess
 import sys
+import warnings
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
@@ -170,8 +171,12 @@ modindex_common_prefix = ['neutron_vpnaas.']
 #html_last_updated_fmt = '%b %d, %Y'
 git_cmd = ["git", "log", "--pretty=format:'%ad, commit %h'", "--date=local",
    "-n1"]
-html_last_updated_fmt = subprocess.Popen(git_cmd,
-                             stdout=subprocess.PIPE).communicate()[0]
+try:
+    html_last_updated_fmt = subprocess.Popen(
+        git_cmd, stdout=subprocess.PIPE).communicate()[0]
+except Exception:
+    warnings.warn('Cannot get last updated time from git repository. '
+                  'Not setting "html_last_updated_fmt".')
 
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.