Re: [PATCH 0/9] Get rid of bitmap images

From: Jonathan Corbet
Date: Mon Nov 21 2016 - 12:44:51 EST

On Sun, 20 Nov 2016 14:08:31 -0200
Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx> wrote:

> The goal of this patch series is to get rid of PNG images, using either graphviz
> or SVG for images.
> For old images generated with xfig, stored inside PDF, just convert them to SVG
> and cleanup the images using inkscape.
> Other images need to be rewritten in SVG.
> The pipeline image is actually a graphviz diagram. So, use dot to convert it
> to SVG.
> For now, I'm keeping the image conversion rules inside the
> Documentation/media/Makefile. As we get other docs using images,
> the best would be to move those rules to Documentation/Makefile.sphinx,
> while we don't have a Sphinx extension or fixup that would handle them
> directly.

So this all seems good to me and makes sense to get in for 4.10. Should I
apply these?

> NOTE: some images use more than 998 columns, causing troubles
> with some MTA and MUA that could refuse them, because of an IETF
> RFC 2821 violation:

Hard would it be to bash out a little tool that could break those long
lines? It seems like the format should be able to support that? I'm no
XML expert, but a quick experiment breaking the long lines in
fieldseq_bt.svg didn't create any problems; white space is white space.

Indeed, given the small number of images and the infrequency with which
they change, perhaps that could just be done by hand?

(In the process I learned that if you visit an SVG image in emacs, it
actually renders and displays the image!)