From 3d6184e51a2abd604e304f924eac5fb97684c165 Mon Sep 17 00:00:00 2001
From: Sharat Sharma <sharat.sharma@nectechnologies.in>
Date: Tue, 31 Jan 2017 17:18:36 +0530
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: I9a6aba18d40877f24c31d0b44cae4aca4b064655
Closes-Bug: #1552251
---
 doc/source/conf.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/doc/source/conf.py b/doc/source/conf.py
index 43214dce..05e08ad4 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -14,7 +14,7 @@
 import os
 import subprocess
 import sys
-
+import warnings
 
 on_rtd = os.environ.get('READTHEDOCS', None) == 'True'
 
@@ -99,8 +99,12 @@ modindex_common_prefix = ['mistral.']
 # 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".')
 
 # The name for this set of Sphinx documents. If None, it defaults to
 # "<project> v<release> documentation".