Add timestamp at the bottom of every page

This patch adds the timestamp at the bottom of every page using the
given time format.

Change-Id: Ie54165cc181cd4c959e803438a2bf33b5ec02730

doc/source/conf.py

@@ -13,6 +13,7 @@
 # limitations under the License.
 
 import os
+import subprocess
 import sys
 
 
@@ -94,6 +95,14 @@ htmlhelp_basename = '%sdoc' % project
 # A list of ignored prefixes for module index sorting.
 modindex_common_prefix = ['mistral.']
 
+# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
+# using the given strftime format.
+# 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]
+
 # The name for this set of Sphinx documents. If None, it defaults to
 # "<project> v<release> documentation".
 html_title = 'Mistral'

test-requirements.txt

@@ -12,6 +12,7 @@ requests-mock>=1.1 # Apache-2.0
 sphinx!=1.3b1,<1.4,>=1.2.1 # BSD
 sphinxcontrib-httpdomain # BSD
 sphinxcontrib-pecanwsme>=0.8 # Apache-2.0
+openstackdocstheme>=1.5.0 # Apache-2.0
 testrepository>=0.0.18 # Apache-2.0/BSD
 testtools>=1.4.0 # MIT
 unittest2 # BSD