0.12.19: sphinx 4.x warnings

[kloczek]

Looks like new sphinx shows some warning during documentation build

+ /usr/bin/python3 setup.py build_sphinx -b man --build-dir build/sphinx
running build_sphinx
Running Sphinx v4.1.2
making output directory... done
loading intersphinx inventory from http://docs.python.org/objects.inv...
loading intersphinx inventory from http://werkzeug.pocoo.org/docs/objects.inv...
intersphinx inventory has moved: http://docs.python.org/objects.inv -> https://docs.python.org/3/objects.inv
intersphinx inventory has moved: http://werkzeug.pocoo.org/docs/objects.inv -> https://werkzeug.palletsprojects.com/en/2.0.x/objects.inv
building [mo]: targets for 0 po files that are out of date
building [man]: all manpages
updating environment: [new config] 18 added, 0 changed, 0 removed
reading sources... [100%] tutorial_app
/home/tkloczko/rpmbuild/BUILD/bottle-0.12.19/bottle.py:docstring of bottle.request:1: WARNING: duplicate object description of bottle.request, other instance in api, use :noindex: for one of them
/home/tkloczko/rpmbuild/BUILD/bottle-0.12.19/bottle.py:docstring of bottle.ConfigDict.load_config:1: WARNING: Inline emphasis start-string without end-string.
/home/tkloczko/rpmbuild/BUILD/bottle-0.12.19/docs/contact.rst:: WARNING: image file not readable: _static/myface_small.png
/home/tkloczko/rpmbuild/BUILD/bottle-0.12.19/docs/faq.rst:1: WARNING: duplicate object description of bottle, other instance in api, use :noindex: for one of them
/home/tkloczko/rpmbuild/BUILD/bottle-0.12.19/docs/plugindev.rst:1: WARNING: duplicate object description of bottle, other instance in faq, use :noindex: for one of them
/home/tkloczko/rpmbuild/BUILD/bottle-0.12.19/docs/plugins/index.rst:1: WARNING: duplicate object description of bottle, other instance in plugindev, use :noindex: for one of them
/home/tkloczko/rpmbuild/BUILD/bottle-0.12.19/docs/recipes.rst:1: WARNING: duplicate object description of bottle, other instance in plugins/index, use :noindex: for one of them
/home/tkloczko/rpmbuild/BUILD/bottle-0.12.19/docs/tutorial.rst:1: WARNING: duplicate object description of bottle, other instance in recipes, use :noindex: for one of them
looking for now-outdated files... none found
pickling environment... done
checking consistency... /home/tkloczko/rpmbuild/BUILD/bottle-0.12.19/docs/contact.rst: WARNING: document isn't included in any toctree
/home/tkloczko/rpmbuild/BUILD/bottle-0.12.19/docs/deployment.rst: WARNING: document isn't included in any toctree
done
writing... python-bottle.3 { tutorial configuration routing stpl api plugins/index plugins/sqlite plugins/werkzeug tutorial_app async recipes faq changelog development plugindev } /home/tkloczko/rpmbuild/BUILD/bottle-0.12.19/docs/tutorial.rst:175: WARNING: unknown document: Routing
/home/tkloczko/rpmbuild/BUILD/bottle-0.12.19/docs/tutorial.rst:287: WARNING: undefined label: tutorial-output-filter
/home/tkloczko/rpmbuild/BUILD/bottle-0.12.19/docs/stpl.rst:89: WARNING: undefined label: stpl-custom-tokens
done
build succeeded, 13 warnings.

[kloczek]

You can peak on fixes that kind of issues in other projects
latchset/jwcrypto#289
click-contrib/sphinx-click@abc31069
latchset/jwcrypto#289
RDFLib/rdflib-sqlalchemy#95
sissaschool/elementpath@bf869d9e
jaraco/cssutils#21

[defnull]

Documentation still builds, though? release-0.12 is in maintenance mode. I'd merge PRs that fix these issues, but a couple of warnings are fine for a 9+ years old branch I guess.

[kloczek]

Closing tickets without fixing the issue does not make any sense.
I'm not affected by this issue because I'm interested roff output (man page).
This issue affects html and other output formats.

[defnull]

I explained why this is a "wontfix" situation. If you think this should be fixed (in a 9 years old maintenance branch), then feel free to submit a pull request.