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_version to not auto-version the documents.

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.

Remove docs requirements from lower-constraints, they are not needed
during install or test but only for docs building.

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: I26cabdc85596be44fca36cad2a609b8fca0e50e0

doc/requirements.txt

@@ -2,6 +2,6 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-openstackdocstheme>=1.18.1 # Apache-2.0
+openstackdocstheme>=2.2.1 # Apache-2.0
-reno>=2.5.0 # Apache-2.0
+reno>=3.1.0 # Apache-2.0
-sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
+sphinx>=2.0.0,!=2.1.0 # BSD

doc/source/conf.py

@@ -12,12 +12,8 @@
 # All configuration values have a default; values that are commented out
 # serve to show the default.
 
-from __future__ import unicode_literals
-
 import os
-import subprocess
 import sys
-import warnings
 
 import pbr.version
 
@@ -60,15 +56,6 @@ master_doc = 'index'
 project = 'ldappool'
 copyright = 'OpenStack Contributors'
 
-# 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.
-version_info = pbr.version.VersionInfo('ldappool')
-# The short X.Y version.
-version = version_info.version_string()
-# The full version, including alpha/beta/rc tags.
-release = version_info.release_string()
-
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
 #language = None
@@ -102,7 +89,7 @@ add_module_names = True
 #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 = ['ldappool.']
@@ -148,10 +135,6 @@ html_theme = 'openstackdocs'
 # so a file named "default.css" will overwrite the builtin "default.css".
 #html_static_path = ['static']
 
-# 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
@@ -226,6 +209,6 @@ intersphinx_mapping = {
 }
 
 # -- Options for openstackdocstheme -------------------------------------------
-repository_name = 'openstack/ldappool'
+openstackdocs_repo_name = 'openstack/ldappool'
-bug_project = 'ldappool'
+openstackdocs_bug_project = 'ldappool'
-bug_tag = ''
+openstackdocs_bug_tag = ''

lower-constraints.txt

@@ -10,7 +10,7 @@ Jinja2==2.10
 linecache2==1.0.0
 MarkupSafe==1.0
 mccabe==0.2.1
-openstackdocstheme==1.18.1
+openstackdocstheme==2.2.1
 pbr==2.0.0
 pep257==0.7.0
 prettytable==0.7.2
@@ -22,7 +22,7 @@ pytz==2013.6
 requests==2.14.2
 six==1.10.0
 snowballstemmer==1.2.1
-Sphinx==1.6.2
+Sphinx==2.0.0
 sphinxcontrib-websupport==1.0.1
 stestr==2.0.0
 testresources==2.0.0

releasenotes/source/conf.py

@@ -97,7 +97,7 @@ 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 = []
@@ -146,11 +146,6 @@ 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 = '%b %d, %Y'
-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
@@ -278,6 +273,7 @@ texinfo_documents = [
 locale_dirs = ['locale/']
 
 # -- Options for openstackdocstheme -------------------------------------------
-repository_name = 'openstack/ldappool'
+openstackdocs_repo_name = 'openstack/ldappool'
-bug_project = 'ldappool'
+openstackdocs_auto_name = False
-bug_tag = 'doc'
+openstackdocs_bug_project = 'ldappool'
+openstackdocs_bug_tag = 'doc'

test-requirements.txt

@@ -8,8 +8,6 @@ flake8-docstrings==0.2.1.post1 # MIT
 
 coverage!=4.4,>=4.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
-sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
-openstackdocstheme>=1.18.1 # Apache-2.0
 stestr>=2.0.0 # Apache-2.0
 testresources>=2.0.0 # Apache-2.0/BSD
 testtools>=2.2.0 # MIT

tox.ini

@@ -51,13 +51,14 @@ show-source = True
 exclude = .venv,.tox,dist,doc,*egg,build
 
 [testenv:docs]
+deps =
+       -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+       -r{toxinidir}/doc/requirements.txt
 commands=
     sphinx-build -W -b html -d doc/build/doctrees doc/source doc/build/html
 
 [testenv:releasenotes]
-deps =
+deps = {[testenv:docs]deps}
-    -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
-    -r{toxinidir}/doc/requirements.txt
 commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
 
 [testenv:lower-constraints]