Adding upstream version 0.11.12.

Signed-off-by: Daniel Baumann <daniel@debian.org>

tox.ini

@@ -0,0 +1,42 @@
+[tox]
+envlist =
+    py{39,310,311,312}{-sphinx6,-sphinx7,-sphinx8,-sphinx9,-devdeps,-docs,-linkcheck,-pydata-sphinx-theme}
+
+[testenv]
+allowlist_externals =
+    make
+    git
+extras =
+    dev
+commands =
+    # Have to do this here as myst-parser in the install step forces the version.
+    sphinx6: pip install -U "sphinx>=6.0,<7.0"
+    sphinx7: pip install -U "sphinx>=7.0,<8.0"
+    sphinx8: pip install -U "sphinx>=8.0,<9.0"
+    sphinx9: pip install -U "sphinx>=9.0,<10.0"
+    devdeps: pip install -U "docutils @ git+https://github.com/docutils/docutils.git\#\&subdirectory=docutils"
+    devdeps: pip install -U "git+https://github.com/sphinx-doc/sphinx"
+    pip freeze --all --no-input
+    pytest -vvv -r a --pyargs ablog
+    make tests
+
+[testenv:docs]
+changedir = docs
+description = Invoke sphinx-build to build the HTML docs
+commands =
+    sphinx-build -j auto --color -W --keep-going -b html -d _build/.doctrees . _build/html {posargs}
+    python -c 'import pathlib; print("Documentation available under file://\{0\}".format(pathlib.Path(r"{toxinidir}") / "docs" / "_build" / "index.html"))'
+
+[testenv:pydata-sphinx-theme]
+commands =
+    rm -rf pydata-sphinx-theme || true
+    git clone git@github.com:pydata/pydata-sphinx-theme.git --depth 1 pydata-sphinx-theme
+    pip install -e "pydata-sphinx-theme/.[dev]"
+    pip freeze --all --no-input
+    sphinx-build --color -W --keep-going -b html -d _build/.doctrees pydata-sphinx-theme/docs pydata-sphinx-theme/docs/_build/html {posargs}
+
+[testenv:linkcheck]
+changedir = docs
+description = Invoke sphinx-build to check linkcheck works
+commands =
+    sphinx-build --color -W --keep-going -b linkcheck . _build/html {posargs}