Commit 868366aa authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab Committed by Jonathan Corbet

sphinx.rst: document scripts/sphinx-pre-install script

Now that we have a script to check for Sphinx dependencies,
document it.
Signed-off-by: default avatarMauro Carvalho Chehab <>
Signed-off-by: default avatarJonathan Corbet <>
parent bba1e4cb
......@@ -28,6 +28,9 @@ The ReST markups currently used by the Documentation/ files are meant to be
built with ``Sphinx`` version 1.3 or upper. If you're desiring to build
PDF outputs, it is recommended to use version 1.4.6 or upper.
There's a script that checks for the Spinx requirements. Please see
:ref:`sphinx-pre-install` for further details.
Most distributions are shipped with Sphinx, but its toolchain is fragile,
and it is not uncommon that upgrading it or some other Python packages
on your machine would cause the documentation build to break.
......@@ -47,13 +50,15 @@ or ``virtualenv``, depending on how your distribution packaged Python 3.
on the Sphinx version, it should be installed in separate,
with ``pip install sphinx_rtd_theme``.
#) Some ReST pages contain math expressions. Due to the way Sphinx work,
those expressions are written using LaTeX notation. It needs texlive
installed with amdfonts and amsmath in order to evaluate them.
In summary, if you want to install Sphinx version 1.4.9, you should do::
$ virtualenv sphinx_1.4
$ . sphinx_1.4/bin/activate
(sphinx_1.4) $ pip install 'docutils==0.12'
(sphinx_1.4) $ pip install 'Sphinx==1.4.9'
(sphinx_1.4) $ pip install sphinx_rtd_theme
(sphinx_1.4) $ pip install -r Documentation/sphinx/requirements.txt
After running ``. sphinx_1.4/bin/activate``, the prompt will change,
in order to indicate that you're using the new environment. If you
......@@ -83,7 +88,42 @@ For PDF and LaTeX output, you'll also need ``XeLaTeX`` version 3.14159265.
Depending on the distribution, you may also need to install a series of
``texlive`` packages that provide the minimal set of functionalities
required for ``XeLaTex`` to work.
required for ``XeLaTeX`` to work.
.. _sphinx-pre-install:
Checking for Sphinx dependencies
There's a script that automatically check for Sphinx dependencies. If it can
recognize your distribution, it will also give a hint about the install
command line options for your distro::
$ ./scripts/sphinx-pre-install
Checking if the needed tools for Fedora release 26 (Twenty Six) are available
Warning: better to also install "texlive-luatex85".
You should run:
sudo dnf install -y texlive-luatex85
/usr/bin/virtualenv sphinx_1.4
. sphinx_1.4/bin/activate
pip install -r Documentation/sphinx/requirements.txt
Can't build as 1 mandatory dependency is missing at ./scripts/sphinx-pre-install line 468.
By default, it checks all the requirements for both html and PDF, including
the requirements for images, math expressions and LaTeX build, and assumes
that a virtual Python environment will be used. The ones needed for html
builds are assumed to be mandatory; the others to be optional.
It supports two optional parameters:
Disable checks for PDF;
Use OS packaging for Sphinx instead of Python virtual environment.
Sphinx Build
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