Switch to newer openstackdocstheme and reno versions

Switch to openstackdocstheme 2.2.1 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.

Set openstackdocs_auto_name to use 'project' as name.

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: If718e3d21c682dd3a3d297cfa9cebb333d59aef3

doc/requirements.txt

@@ -1,7 +1,7 @@
 # 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.
-openstackdocstheme>=1.20.0 # Apache-2.0
-reno>=2.5.0 # Apache-2.0
-sphinx!=1.6.6,!=1.6.7,!=2.1.0,>=1.6.2 # BSD
+openstackdocstheme>=2.2.1 # Apache-2.0
+reno>=3.1.0 # Apache-2.0
+sphinx>=2.0.0,!=2.1.0 # BSD
 sphinxcontrib-svg2pdfconverter>=0.1.0 # BSD

doc/source/conf.py

@@ -31,9 +31,9 @@ extensions = ['sphinx.ext.autodoc',
              ]
 
 # openstackdocstheme options
-repository_name = 'openstack/devstack-tools'
-bug_project = 'devstack-tools'
-bug_tag = 'doc'
+openstackdocs_repo_name = 'openstack/devstack-tools'
+openstackdocs_bug_project = 'devstack-tools'
+openstackdocs_bug_tag = 'doc'
 
 # autodoc generation is a bit aggressive and a nuisance when doing heavy
 # text edit cycles.
@@ -46,7 +46,6 @@ source_suffix = '.rst'
 master_doc = 'index'
 
 # General information about the project.
-project = u'devstack-tools'
 copyright = u'2016, OpenStack Foundation'
 
 # If true, '()' will be appended to :func: etc. cross-reference text.
@@ -57,7 +56,7 @@ add_function_parentheses = True
 add_module_names = True
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = 'native'
 
 # -- Options for HTML output ---------------------------------------------------
 

releasenotes/source/conf.py

@@ -42,6 +42,12 @@ extensions = [
     'reno.sphinxext',
 ]
 
+# openstackdocstheme options
+openstackdocs_repo_name = 'openstack/devstack-tools'
+openstackdocs_bug_project = 'devstack-tools'
+openstackdocs_bug_tag = 'doc'
+openstackdocs_auto_name = False
+
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']
 
@@ -55,7 +61,7 @@ source_suffix = '.rst'
 master_doc = 'index'
 
 # General information about the project.
-project = u'devstack Release Notes'
+project = u'devstack-tools Release Notes'
 copyright = u'2016, OpenStack Foundation'
 
 # The version info for the project you're documenting, acts as replacement for
@@ -98,7 +104,7 @@ 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 = []