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docs: allow to pass extra DOCS_CSS themes via make

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Specially when the RTD theme is not used, it makes sense to
allow specifying extra CSS files via a make variable.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/03d09bf41ad39aa0abfe2ea3c879b09aa3a0948d.1638870323.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Mauro Carvalho Chehab 2021-12-07 10:53:00 +01:00 committed by Jonathan Corbet
parent fca7216bf5
commit 135707d376
3 changed files with 17 additions and 1 deletions
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8
Documentation/Makefile
View File

@ -20,6 +20,7 @@ SPHINXBUILD = sphinx-build
SPHINXOPTS =
SPHINXDIRS = .
DOCS_THEME =
DOCS_CSS =
_SPHINXDIRS = $(sort $(patsubst $(srctree)/Documentation/%/index.rst,%,$(wildcard $(srctree)/Documentation/*/index.rst)))
SPHINX_CONF = conf.py
PAPER =
@ -85,7 +86,10 @@ quiet_cmd_sphinx = SPHINX $@ --> file://$(abspath $(BUILDDIR)/$3/$4)
-D version=$(KERNELVERSION) -D release=$(KERNELRELEASE) \
$(ALLSPHINXOPTS) \
$(abspath $(srctree)/$(src)/$5) \
$(abspath $(BUILDDIR)/$3/$4)
$(abspath $(BUILDDIR)/$3/$4) && \
if [ "x$(DOCS_CSS)" != "x" ]; then \
cp $(DOCS_CSS) $(BUILDDIR)/$3/_static/; \
fi
htmldocs:
@$(srctree)/scripts/sphinx-pre-install --version-check
@ -157,4 +161,6 @@ dochelp:
@echo
@echo ' make DOCS_THEME={sphinx-theme} selects a different Sphinx theme.'
@echo
@echo ' make DOCS_CSS={a .css file} adds a DOCS_CSS override file for html/epub output.'
@echo
@echo ' Default location for the generated documents is Documentation/output'

7
Documentation/conf.py
View File

@ -210,6 +210,7 @@ highlight_language = 'none'
# Default theme
html_theme = 'sphinx_rtd_theme'
html_css_files = []
if "DOCS_THEME" in os.environ:
html_theme = os.environ["DOCS_THEME"]
@ -229,6 +230,12 @@ if html_theme == 'sphinx_rtd_theme':
except ImportError:
html_theme = 'classic'
if "DOCS_CSS" in os.environ:
css = os.environ["DOCS_CSS"].split(" ")
for l in css:
html_css_files.append(l)
if major <= 1 and minor < 8:
html_context = {
'css_files': [],

3
Documentation/doc-guide/sphinx.rst
View File

@ -138,6 +138,9 @@ To pass extra options to Sphinx, you can use the ``SPHINXOPTS`` make
variable. For example, use ``make SPHINXOPTS=-v htmldocs`` to get more verbose
output.
It is also possible to pass an extra DOCS_CSS overlay file, in order to customize
the html layout, by using the ``DOCS_CSS`` make variable.
By default, the build will try to use the Read the Docs sphinx theme:
https://github.com/readthedocs/sphinx_rtd_theme