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_pdf_link to link to PDF file. Note that
the link to the published document only works on docs.openstack.org
where the PDF file is placed in the top-level html directory. The
site-preview places the PDF in a pdf directory.

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: Ia39d9da11dacaff56c97367a30c0ace7385c7128

deploy-guide/source/conf.py

@@ -114,9 +114,9 @@ source_suffix = '.rst'
 master_doc = 'index'
 
 # openstackdocstheme options
-repository_name = 'openstack/' + target_name
-bug_project = 'openstack-ansible'
-bug_tag = ''
+openstackdocs_repo_name = 'openstack/' + target_name
+openstackdocs_bug_project = 'openstack-ansible'
+openstackdocs_bug_tag = ''
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
@@ -196,10 +196,6 @@ html_theme = 'openstackdocs'
 # 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
@@ -305,7 +301,7 @@ man_pages = [
 #  dir menu entry, description, category)
 texinfo_documents = [
     (master_doc, target_name,
-     title, author, bug_project,
+     title, author, openstackdocs_bug_project,
      description, category),
 ]
 

doc/requirements.txt

@@ -3,9 +3,9 @@
 # process, which may cause wedges in the gate later.
 
 # this is required for the docs build jobs
-sphinx>=1.8.0,!=2.1.0 # BSD
+sphinx>=2.0.0,!=2.1.0 # BSD
 sphinxcontrib-svg2pdfconverter>=0.1.0 # BSD
-openstackdocstheme>=1.29.2 # Apache-2.0
-reno>=2.11.3 # Apache-2.0
+openstackdocstheme>=2.2.1 # Apache-2.0
+reno>=3.1.0 # Apache-2.0
 doc8>=0.8.0 # Apache-2.0
 bashate>=0.6.0 # Apache-2.0

doc/source/conf.py

@@ -128,10 +128,11 @@ source_suffix = '.rst'
 master_doc = 'index'
 
 # openstackdocstheme options
-repository_name = 'openstack/' + target_name
+openstackdocs_repo_name = 'openstack/' + target_name
+openstackdocs_pdf_link = True
 # The bug project is always the same for all our repos
-bug_project = 'openstack-ansible'
-bug_tag = ''
+openstackdocs_bug_project = 'openstack-ansible'
+openstackdocs_bug_tag = ''
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
@@ -215,10 +216,6 @@ html_static_path = ['_static']
 # 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
@@ -326,7 +323,7 @@ man_pages = [
 #  dir menu entry, description, category)
 texinfo_documents = [
     (master_doc, target_name,
-     title, author, bug_project,
+     title, author, openstackdocs_bug_project,
      description, category),
 ]
 

releasenotes/source/conf.py

@@ -74,9 +74,10 @@ release = ''
 # The short X.Y version.
 version = ''
 # openstackdocstheme options
-repository_name = 'openstack/' + target_name
-bug_project = project.lower()
-bug_tag = ''
+openstackdocs_repo_name = 'openstack/' + target_name
+openstackdocs_auto_name = False
+openstackdocs_bug_project = project.lower()
+openstackdocs_bug_tag = ''
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
@@ -157,10 +158,6 @@ html_static_path = ['_static']
 # 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