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To prevent any regression on existing build systems, limit the
fallback of converting DOT -> raster PDF only when both of the
following conditions are met.
o dot(1) doesn't support -Tpdf
o rsvg-convert(1) is not found
While we are here, add kernellog.verbose messages related to
rsvg-convert, 'dot -Tpdf', and 'dot -Tsvg' commands.
Suggested-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/e76f61e1-7366-ba00-b119-8ea6a2499861@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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On openSUSE, dot(1) command does not support direct PDF output.
On other distros, generated PDF images have unnecessarily wide margins,
especially for small graphs.
By using dot(1) for DOT -> SVG, then rsvg-convert(1) for SVG -> PDF,
more optimal PDF images can be obtained, with the bonus of improved
portability across various distros.
Add rules in kfigure.py so that the above mentioned route is taken
when rsvg-convert(1) is available.
Note that rsvg-convert(1) is recommended by sphinx_pre_install.
So it is most likely that existing systems for building pdfdocs have
rsvg-convert(1) installed.
Note:
SVG features supported by rsvg-convert(1) vary depending on its
version and distro config.
For example, the one found on Ubuntu Bionic (version 2.40.20) does
poor job in rendering some of SVG files drawn by Inkscape.
SVG files generated by dot(1) are converted nicely even with such
old versions of rsvg-convert.
So this change does not affect the quality of such figures in any
way.
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/15b56dd3-081a-2469-c3a4-dfc1ca4c6c2d@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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The kernel build system as a whole is dropping support for Python 2, so we
should do the same. The effects are rather small, especially considering
that much of the deleted code was not doing anything under any version of
Python anyway.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
Deterministic algorithm:
For each file:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200526060544.25127-1-grandmaster@al2klimov.de
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Recent versions of sphinx will emit messages like:
Documentation/sphinx/kerneldoc.py:103:
RemovedInSphinx20Warning: app.warning() is now deprecated.
Use sphinx.util.logging instead.
Switch to sphinx.util.logging to make this unsightly message go away.
Alas, that interface was only added in version 1.6, so we have to add a
version check to keep things working with older sphinxes.
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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This patch fixes some spelling typos found in kfigure.py
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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This patch brings scalable figure, image handling and a concept to
embed *render* markups:
* DOT (http://www.graphviz.org)
* SVG
For image handling use the 'image' replacement::
.. kernel-image:: svg_image.svg
:alt: simple SVG image
For figure handling use the 'figure' replacement::
.. kernel-figure:: svg_image.svg
:alt: simple SVG image
SVG image example
Embed *render* markups (or languages) like Graphviz's **DOT** is
provided by the *render* directive.::
.. kernel-render:: DOT
:alt: foobar digraph
:caption: Embedded **DOT** (Graphviz) code.
digraph foo {
"bar" -> "baz";
}
The *render* directive is a concept to integrate *render* markups and
languages, yet supported markups:
* DOT: render embedded Graphviz's **DOT**
* SVG: render embedded Scalable Vector Graphics (**SVG**)
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Tested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> (v2 - v5)
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de> (v1, v6)
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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