Switch to newer openstackdocstheme and reno versions

Switch to openstackdocstheme 2.2.0 and reno 3.1.0 versions. Using
these versions will allow especially:
* Linking from HTML to PDF document
* Allow parallel building of documents
* Fix some rendering problems

Update Sphinx version as well.

openstackdocstheme renames some variables, so follow the renames
before the next release removes them. A couple of variables are also
not needed anymore, remove them.

Change pygments_style to 'native' since old theme version always used
'native' and the theme now respects the setting and using 'sphinx' can
lead to some strange rendering.

See also
http://lists.openstack.org/pipermail/openstack-discuss/2020-May/014971.html

Change-Id: I6bac230569a89c055115c852d5cc0cae027cddd8

doc/requirements.txt

@@ -1,6 +1,6 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-sphinx!=1.6.6,!=1.6.7,>=1.6.2  # BSD
-reno>=2.7.0 # Apache-2.0
-openstackdocstheme>=1.18.1 # Apache-2.0
+sphinx>=2.0.0,!=2.1.0 # BSD
+reno>=3.1.0 # Apache-2.0
+openstackdocstheme>=2.2.1 # Apache-2.0

doc/source/conf.py

@@ -9,9 +9,9 @@
 extensions = ['sphinx.ext.autodoc', 'sphinx.ext.viewcode', 'openstackdocstheme']
 
 # openstackdocstheme options
-repository_name = 'openstack/python-designateclient'
-bug_project = 'python-designateclient'
-bug_tag = ''
+openstackdocs_repo_name = 'openstack/python-designateclient'
+openstackdocs_bug_project = 'python-designateclient'
+openstackdocs_bug_tag = ''
 html_theme = 'openstackdocs'
 
 # Add any paths that contain templates here, relative to this directory.
@@ -24,25 +24,14 @@ source_suffix = '.rst'
 master_doc = 'index'
 
 # General information about the project.
-project = u'designateclient'
 copyright = u'2012, Managed I.T. 2013-2014, Hewlett-Packard Development Company, L.P.'
 
-# The version info for the project you're documenting, acts as replacement for
-# |version| and |release|, also used in various other places throughout the
-# built documents.
-#
-# The short X.Y version.
-from designateclient.version import version_info as designateclient_version
-version = designateclient_version.canonical_version_string()
-# The full version, including alpha/beta/rc tags.
-release = designateclient_version.version_string_with_vcs()
-
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
 exclude_patterns = []
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = 'native'
 
 # A list of ignored prefixes for module index sorting.
 modindex_common_prefix = ['designateclient']

lower-constraints.txt

@@ -60,7 +60,7 @@ python-mimeparse==1.6.0
 python-subunit==1.0.0
 pytz==2013.6
 PyYAML==3.12
-reno==2.7.0
+reno==3.1.0
 requests==2.14.2
 requests-mock==1.2.0
 requestsexceptions==1.2.0

releasenotes/source/conf.py

@@ -42,9 +42,10 @@ extensions = [
 ]
 
 # openstackdocstheme options
-repository_name = 'openstack/python-designateclient'
-bug_project = 'python-designateclient'
-bug_tag = ''
+openstackdocs_repo_name = 'openstack/python-designateclient'
+openstackdocs_bug_project = 'python-designateclient'
+openstackdocs_bug_tag = ''
+openstackdocs_auto_name = False
 html_theme = 'openstackdocs'
 
 # Add any paths that contain templates here, relative to this directory.
@@ -99,7 +100,7 @@ exclude_patterns = []
 # show_authors = False
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = 'native'
 
 # A list of ignored prefixes for module index sorting.
 # modindex_common_prefix = []

test-requirements.txt

@@ -10,5 +10,5 @@ os-testr>=1.0.0 # Apache-2.0
 python-subunit>=1.0.0 # Apache-2.0/BSD
 requests-mock>=1.2.0 # Apache-2.0
 stestr>=2.0.0 # Apache-2.0
-reno>=2.7.0 # Apache-2.0
+reno>=3.1.0 # Apache-2.0
 tempest>=17.1.0 # Apache-2.0