Re: [PATCH 2/6] docs-rst: automatically convert Graphviz and SVG images

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On Thu, Mar 02, 2017 at 03:58:36PM +0100, Markus Heiser wrote:
> Hi Daniel, Laurent
> 
> Am 02.03.2017 um 15:14 schrieb Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>:
> 
> > Hi Daniel,
> > 
> > On Thursday 02 Mar 2017 14:54:32 Daniel Vetter wrote:
> >> On Thu, Mar 2, 2017 at 1:26 PM, Laurent Pinchart wrote:
> >>> Hi Daniel,
> >>> 
> >>> Thank you for the patch.
> >>> 
> >>> With this applied, I get
> >>> 
> >>> make[1]: Entering directory '/home/laurent/src/iob/renesas/linux64'
> >>> 
> >>>  SPHINX  htmldocs -->
> >>>  file:///home/laurent/src/iob/renesas/linux64/Documentation/output PARSE
> >>>    include/uapi/linux/videodev2.h
> >>> 
> >>> Running Sphinx v1.3.1
> >>> 
> >>> Extension error:
> >>> Could not import extension kfigure (exception: cannot import name patches)
> >>> make[2]: ***
> >>> [/home/laurent/src/iob/renesas/linux/Documentation/Makefile.sphinx:70:
> >>> htmldocs] Error 1 make[1]: ***
> >>> [/home/laurent/src/iob/renesas/linux/Makefile:1453: htmldocs] Error 2
> >>> make[1]: Leaving directory '/home/laurent/src/iob/renesas/linux64' make:
> >>> *** [Makefile:152: sub-make] Error 2
> >>> 
> >>> sphinx.directive.patches got introduced in Sphinx 1.4. If you want to bump
> >>> the minimum required version I think a notice is needed.
> >> 
> >> Ugh. But this also goes completely over my head, no idea whether we
> >> must require sphinx 1.4 (it was released Mar 28, 2016), or whether
> >> there's some way to work around this ... Halp?
> > 
> > I'm not a Sphinx expert so I don't know, but what I can tell is that copying 
> > the patches.py from Sphinx 1.4 to Documentation/sphinx/ and modifying 
> > kfigure.py to import it from there fixes the build. There's thus no extra 
> > depencency on Sphinx 1.4 (or newer).
> > 
> > I'm not sure we want to set a precedent by copying part of the Sphinx source 
> > code to the kernel tree (or inlining the single small function that the module 
> > provides), and I'll let someone more knowledgeable than me decide how to 
> > proceed.
> 
> 
> Aargh ... we need virtualenv! For interim something like the following
> might help. In file Documentation/sphinx/kfigure.py edit the imports
> 
> ...
> from docutils.parsers.rst.directives import images
> try:
>     from sphinx.directives.patches import Figure
> except ImportError:
>     Figure = images.Figure 
> ...
> 
> And fix the class definition, so it use 'Figure' and no
> longer 'patch.Figure'::
> 
> ...
> -class KernelFigure(patches.Figure):
> +class KernelFigure(Figure):
> ...
> 
> Sorry that I have not yet the time to send you a decent and tested
> patch. Do you like to test my suggestion? / thanks!

I'll give it a shot at implementing it, but I can't (easily at least) test
on sphinx 1.3.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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