searxng/docs/admin/buildhosts.rst
Markus Heiser eedd63ccd5 docs: revision of the installation instructions
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2020-02-04 16:42:13 +01:00

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.. _buildhosts:
==========
Buildhosts
==========
To get best results from build, its recommend to install additional packages
on build hosts.
.. sidebar:: This article needs some work
If you have any contribution send us your :pull:`PR <../pulls>`, see
:ref:`how to contribute`.
.. contents:: Contents
:depth: 2
:local:
:backlinks: entry
.. _docs build:
Build docs
==========
.. _Graphviz: https://graphviz.gitlab.io
.. _ImageMagick: https://www.imagemagick.org
.. _XeTeX: https://tug.org/xetex/
.. _dvisvgm: https://dvisvgm.de/
.. sidebar:: Sphinx build needs
- ImageMagick_
- Graphviz_
- XeTeX_
- dvisvgm_
Most of the sphinx requirements are installed from :origin:`setup.py` and the
docs can be build from scratch with ``make docs``. For better math and image
processing additional packages are needed. The XeTeX_ needed not only for PDF
creation, its also needed for :ref:`math` when HTML output is build.
To be able to do :ref:`sphinx:math-support` without CDNs, the math are rendered
as images (``sphinx.ext.imgmath`` extension).
Here is the extract from the :origin:`docs/conf.py` file, setting math renderer
to ``imgmath``:
.. literalinclude:: ../conf.py
:language: python
:start-after: # sphinx.ext.imgmath setup
:end-before: # sphinx.ext.imgmath setup END
If your docs build (``make docs``) shows warnings like this::
WARNING: dot(1) not found, for better output quality install \
graphviz from http://www.graphviz.org
..
WARNING: LaTeX command 'latex' cannot be run (needed for math \
display), check the imgmath_latex setting
you need to install additional packages on your build host, to get better HTML
output.
.. tabs::
.. group-tab:: Ubuntu / debian
.. code-block:: sh
$ sudo apt install graphviz imagemagick texlive-xetex librsvg2-bin
.. group-tab:: Arch Linux
.. code-block:: sh
$ sudo pacman -S graphviz imagemagick texlive-bin extra/librsvg
.. group-tab:: Fedora / RHEL
.. code-block:: sh
$ sudo dnf install graphviz graphviz-gd texlive-xetex-bin librsvg2-tools
For PDF output you also need:
.. tabs::
.. group-tab:: Ubuntu / debian
.. code:: sh
$ sudo apt texlive-latex-recommended texlive-extra-utils ttf-dejavu
.. group-tab:: Arch Linux
.. code:: sh
$ sudo pacman -S texlive-core texlive-latexextra ttf-dejavu
.. group-tab:: Fedora / RHEL
.. code:: sh
$ sudo dnf install \
texlive-collection-fontsrecommended texlive-collection-latex \
dejavu-sans-fonts dejavu-serif-fonts dejavu-sans-mono-fonts
.. _sh lint:
Lint shell scripts
==================
.. _ShellCheck: https://github.com/koalaman/shellcheck
To lint shell scripts, we use ShellCheck_ - A shell script static analysis tool.
.. SNIP sh lint requirements
.. tabs::
.. group-tab:: Ubuntu / debian
.. code-block:: sh
$ sudo apt install shellcheck
.. group-tab:: Arch Linux
.. code-block:: sh
$ sudo pacman -S shellcheck
.. group-tab:: Fedora / RHEL
.. code-block:: sh
$ sudo dnf install ShellCheck
.. SNAP sh lint requirements