Add support for new doc PTI jobs

Implement optional cleanup to support the new PTI jobs
for documentation which won't use tox anymore.

Docs tox environment will still available for developers but
it is no loger used in the gate to construct the documentation.

See http://lists.openstack.org/pipermail/openstack-dev/2017-December/125710.html

Change-Id: Ib26b711365389c59658f9d7f6cafd5acb736dfce

README.rst

@@ -1,6 +1,6 @@
-========================
+===============
 RefStack Client
-========================
+===============
 
 RefStack-client team and repository tags
 ########################################

doc/requirements.txt

@@ -0,0 +1,2 @@
+sphinx>=1.6.2  # BSD
+openstackdocstheme>=1.11.0  # Apache-2.0

specs/README.rst

@@ -1,6 +1,6 @@
-=======================
+==============================
 Refstack-Client Specifications
-=======================
+==============================
 
 This folder is used to hold design specifications for additions
 to the refstack-client project. Reviews of the specs are done in gerrit, using a

specs/newton/approved/refstack-waiver.rst

@@ -132,6 +132,7 @@ installation.
 Use tests_list as withelist for ostestr in order to re-run failed test cases.
 
 .. code-block:: bash
+
    ostestr --serial -w test_list
 
 Input: test_list and conf-file files.

specs/queens/approved/tempest_autoconfig.rst

@@ -17,7 +17,8 @@ about tempest, the tempest.conf can be created automatically by the
 refstack-client and provide an example tempest.conf populated with values from
 the target cloud.
 
-::
+.. code-block:: bash
+
     $ source openstackrc file
     $ refstack-client config -h
           --os-cloud <name of the cloud> # Using specific cloud.yaml files

test-requirements.txt

@@ -2,11 +2,8 @@ pep8==1.4.5
 pyflakes>=0.7.2,<0.7.4
 flake8==2.0
 docutils>=0.11  # OSI-Approved Open Source, Public Domain
-# required to build documentation
-sphinx>=1.6.2  # BSD
 stestr>=1.1.0 # Apache-2.0
 testtools>=0.9.34
 mock
 coverage
 httmock
-openstackdocstheme>=1.11.0  # Apache-2.0

tox.ini

@@ -33,7 +33,8 @@ commands =
   coverage report
 
 [testenv:docs]
-commands = python setup.py build_sphinx {posargs}
+deps = -r{toxinidir}/doc/requirements.txt
+commands = sphinx-build -b html doc/source doc/build/html
 
 [flake8]
 # E125 continuation line does not distinguish itself from next logical line