Switch to newer openstackdocstheme version

Switch to openstackdocstheme 2.2.1 version. Using
this version 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.

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

Cleanup setup: Remove unneeded requirements, cleanup tox.ini and
setup.*.

Change-Id: I0cd384d4df8107e3cb45f512d79f9f81c1d10f9f

doc/source/conf.py

@@ -11,7 +11,6 @@
 # All configuration values have a default; values that are commented out
 # serve to show the default.
 
-import subprocess
 import sys
 import os
 
@@ -36,7 +35,7 @@ todo_include_todos = True
 
 # Define shorthand roles for making links to common destinations.
 extlinks = {
-    'repo': ('https://git.opendev.org/cgit/%s', ''),
+    'repo': ('https://opendev.org/%s', ''),
 }
 
 # Add any paths that contain templates here, relative to this directory.
@@ -85,11 +84,15 @@ add_module_names = False
 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 = []
 
+# openstackdocstheme options
+openstackdocs_auto_version = False
+openstackdocs_auto_name = False
+
 
 # -- Options for HTML output ---------------------------------------------------
 
@@ -129,12 +132,6 @@ html_title = 'StarlingX Governance'
 # 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.
-git_cmd = ["git", "log", "--pretty=format:'%ad, commit %h'", "--date=local",
-           "-n1"]
-html_last_updated_fmt = subprocess.check_output(git_cmd).decode('utf-8')
-
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.
 #html_use_smartypants = True

requirements.txt

@@ -1,9 +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.
-six>=1.9.0 # MIT
-requests>=2.14.2 # Apache-2.0
-ndg-httpsclient>=0.4.2;python_version<'3.0' # BSD
-PrettyTable<0.8,>=0.7.1 # BSD
+
 docutils>=0.11 # OSI-Approved Open Source, Public Domain
-Jinja2>=2.10 # BSD License (3 clause)
+

setup.cfg

@@ -15,12 +15,3 @@ classifier =
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.5
     Programming Language :: Python :: 3.6
-
-[build_sphinx]
-all_files = 1
-build-dir = doc/build
-source-dir = doc/source
-builders = html
-
-[pbr]
-warnerrors = True

setup.py

@@ -13,17 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# THIS FILE IS MANAGED BY THE GLOBAL REQUIREMENTS REPO - DO NOT EDIT
 import setuptools
 
-# In python < 2.7.4, a lazy loading of package `pbr` will break
-# setuptools if some other modules registered functions in `atexit`.
-# solution from: http://bugs.python.org/issue15881#msg170215
-try:
-    import multiprocessing  # noqa
-except ImportError:
-    pass
-
 setuptools.setup(
     setup_requires=['pbr>=2.0.0'],
     pbr=True)

test-requirements.txt

@@ -2,10 +2,6 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 # needed for doc build
-sphinx>=1.6.2 # BSD
-openstackdocstheme>=1.25.1  # Apache-2.0
-hacking<0.12,>=0.11.0 # Apache-2.0
-oslotest>=1.10.0 # Apache-2.0
-stestr>=2.0.0 # Apache-2.0
-testresources>=2.0.0 # Apache-2.0/BSD
-fixtures>=3.0.0 # Apache-2.0/BSD
+sphinx>=2.0.0,!=2.1.0 # BSD
+openstackdocstheme>=2.2.1 # Apache-2.0
+

tox.ini

@@ -1,12 +1,11 @@
 [tox]
-envlist = docs,py35,py27
+envlist = docs
 minversion = 2.0
 skipsdist = True
 
 [testenv]
 basepython = python3
 usedevelop = True
-install_command = pip install -U {opts} {packages}
 setenv = VIRTUAL_ENV={envdir}
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
@@ -21,5 +20,3 @@ commands = {posargs}
 [testenv:docs]
 commands = sphinx-build -v -W -b html -d doc/build/doctrees doc/source doc/build/html
 
-[flake8]
-exclude=.tox,doc/source/conf.py