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.

Disable openstackdocs_auto_name to use 'project' variable as name.

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.

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.

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

Change-Id: I04a417a96daffaa5bb6570130545bc66527896d6

api-ref/source/conf.py

@@ -41,10 +41,12 @@ source_suffix = '.rst'
 master_doc = 'index'
 
 # General information about the project.
-repository_name = 'openstack/stx-metal'
 project = u'StarlingX Metal'
-bug_project = 'starlingx'
+
-bug_tag = 'stx.metal'
+# openstackdocstheme options
+openstackdocs_repo_name = 'starlingx/metal'
+openstackdocs_use_storyboard = True
+openstackdocs_auto_name = False
 
 # If true, the current module name will be prepended to all description
 # unit titles (such as .. function::).
@@ -55,7 +57,7 @@ add_module_names = False
 show_authors = False
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = 'native'
 
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title, author, documentclass

doc/requirements.txt

@@ -1,8 +1,8 @@
-sphinx>=1.6.2
+sphinx>=2.0.0,!=2.1.0 # BSD
-openstackdocstheme>=1.26.0 # Apache-2.0
+openstackdocstheme>=2.2.1 # Apache-2.0
 
 # Release Notes
-reno>=0.1.1 # Apache-2.0
+reno>=3.1.0 # Apache-2.0
 
 # API Reference Guide
 os-api-ref>=1.4.0 # Apache-2.0

doc/source/conf.py

@@ -24,11 +24,6 @@ project = u'StarlingX Metal'
 copyright = u'2018, StarlingX'
 author = u'StarlingX'
 
-# The short X.Y version
-version = u''
-# The full version, including alpha/beta/rc tags
-release = u'0.1'
-
 
 # -- General configuration ---------------------------------------------------
 
@@ -55,8 +50,10 @@ source_suffix = '.rst'
 # The master toctree document.
 master_doc = 'index'
 
-bug_project = 'starlingx'
+# openstackdocstheme options
-bug_tag = 'stx.metal'
+openstackdocs_repo_name = 'starlingx/metal'
+openstackdocs_use_storyboard = True
+openstackdocs_auto_name = False
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
@@ -71,7 +68,7 @@ language = None
 exclude_patterns = []
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = 'native'
 
 
 # -- Options for HTML output -------------------------------------------------

releasenotes/source/conf.py

@@ -31,8 +31,10 @@ extensions = [
     'reno.sphinxext',
 ]
 
-bug_project = 'starlingx'
+# openstackdocstheme options
-bug_tag = 'stx.metal'
+openstackdocs_repo_name = 'starlingx/metal'
+openstackdocs_use_storyboard = True
+openstackdocs_auto_name = False
 
 # Add any paths that contain templates here, relative to this directory.
 # templates_path = ['_templates']
@@ -83,7 +85,7 @@ 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 = []
@@ -132,10 +134,6 @@ html_theme = 'starlingxdocs'
 # directly to the root of the documentation.
 # html_extra_path = []
 
-# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
-# using the given strftime format.
-html_last_updated_fmt = '%Y-%m-%d %H:%M'
-
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.
 # html_use_smartypants = True