Bring tests to current openstack release

Switch from oslosphinx to openstackdocstheme
That's what the OpenStack community is using today. Also with newer
Sphinx versions, the current approach does no longer build.

Re-add docs and requirements tests.

Switch to xena standard jobs.

Change-Id: I3f93a400bb83f4a91bd77ebe69f609949cd43ca7

.zuul.yaml

@@ -1,3 +1,5 @@
 - project:
     templates:
-      - openstack-python3-wallaby-jobs
+      - check-requirements
+      - openstack-python3-xena-jobs
+      - publish-openstack-docs-pti

doc/requirements.txt

@@ -1,3 +1,2 @@
-
+sphinx>=2.0.0,!=2.1.0 # BSD
-sphinx!=1.6.6,!=1.6.7,>=1.6.2
+openstackdocstheme>=2.2.1 # Apache-2.0
-oslosphinx>=4.7.0 # Apache-2.0

doc/source/conf.py

@@ -22,8 +22,7 @@ sys.path.insert(0, os.path.abspath('../..'))
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
 extensions = [
     'sphinx.ext.autodoc',
-    #'sphinx.ext.intersphinx',
+    'openstackdocstheme'
-    'oslosphinx'
 ]
 
 # autodoc generation is a bit aggressive and a nuisance when doing heavy
@@ -57,6 +56,7 @@ pygments_style = 'sphinx'
 # html_theme_path = ["."]
 # html_theme = '_theme'
 # html_static_path = ['static']
+html_theme = 'openstackdocs'
 
 # Output file base name for HTML help builder.
 htmlhelp_basename = '%sdoc' % project
@@ -73,3 +73,6 @@ latex_documents = [
 
 # Example configuration for intersphinx: refer to the Python standard library.
 #intersphinx_mapping = {'http://docs.python.org/': None}
+
+# openstackdocstheme options
+openstackdocs_repo_name = 'x/python-scciclient'

tox.ini

@@ -49,7 +49,8 @@ basepython = python3
 deps =
     -r{toxinidir}/requirements.txt
     -r{toxinidir}/doc/requirements.txt
-commands = python setup.py build_sphinx
+commands =
+  sphinx-build -b html doc/source doc/build/html
 
 [flake8]
 ignore = W503,W504,W605