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Subject[PATCH v2 0/8] Add a script to check for Sphinx install requirements
Sphinx installation is not trivial, as not all versions are supported,
and it requires a lot of stuff for math, images and PDF/LaTeX output
to work.

So, add a script that checks if everything is fine, providing
distro-specific hints about what's needed for it to work.

I posted already RFC patches for the first patch in this series along
this weekend at linux-doc ML. The current version of the script
will provide hints for some popular distributions. I tested myself
on a couple of release-based and rolling popular distributions:

- Fedora 25 and 26;
- Ubuntu 17.04;
- OpenSuse Tumbleweed;
- Arch Linux;
- Gentoo.

I tested compilation with both htmldocs and pdfdocs targets[1].
Yet, tests (and fix patches) are welcomed :-)

Those patches are at:


1) The first patch in this series is actually independent: it
is just a cleanup from DocBook removal patches.

2) Debian 17.04 version of ImageMagick seems capped:
it can't read SVG texts with things like:
font-family="'Liberation Sans', Sans"
It also doesn't handle other random SVG tags.
So, I had to rewrite several media SVG files to make
them more compliant with ImageMagick.

So far, I can't submit those patches via e-mail, as some
lines there are bigger than 998 characters, with violates
VGER rules for maximum number of columns. I'll try
to break the big lines there via some scripting.


v2: be sure that GraphViz and ImageMagick will generate PDF
outputs on all platforms but OpenSuse (where GraphViz
is built without PDf support).

Mauro Carvalho Chehab (8):
docs: Makefile: remove no-ops targets
scripts/sphinx-pre-install: add a script to check Sphinx install
sphinx-pre-install: detect an existing virtualenv
sphinx-pre-install: use a requirements file
sphinx-pre-install: check for the need of graphviz-gd
sphinx-pre-install: add dependencies for ImageMagick to work with svg
sphinx-pre-install: fix USE needs for GraphViz and ImageMagick
sphinx.rst: document scripts/sphinx-pre-install script

Documentation/Makefile | 10 -
Documentation/doc-guide/sphinx.rst | 48 ++-
Documentation/sphinx/requirements.txt | 3 +
Documentation/translations/zh_CN/HOWTO | 2 -
Makefile | 2 +-
scripts/sphinx-pre-install | 544 +++++++++++++++++++++++++++++++++
6 files changed, 592 insertions(+), 17 deletions(-)
create mode 100644 Documentation/sphinx/requirements.txt
create mode 100755 scripts/sphinx-pre-install


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