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Re: Bug#952826: [www.debian.org] partners: convert svg graphics into png to make tidy happy


Am 01.03.20 um 02:02 schrieb Ricardo:
> Hello,
> images in svg are the source. Would be better to store in svg format
> and convert to png in build time. Are there only external companies
> logos in repository, or are there some images that we may change in
> the future? If we will not resize the images or change them in other
> way, then I think it would be viable to convert and store them to png
> format.

it's absolutely fine to use SVG graphics in recent days and if ever
possible we should use them natively. The world is using more and more
The Debian websites due mostly heavily lack on a mobile friendly face.
To get this working we will need graphics that scale smoothly and please
no special hacks within the HTML source to solve various demands. SVG
graphics are solving this specific need perfectly.

> If choose to convert them, as far as I know, we need to install a
> software in the build container and it takes some time. Maybe there is
> one container with the required software or the build process is made
> in other way. Store only the svg would make thinks more organized and
> easy to edit.

This turns more into a chicken egg problem in a longer view, or in my
eyes, we should solve problems on the ride side or more correctly.
Means, we need a strategy how the websites should evolve within the next
five years for example.
The Debian website is growing every day and by this the load and time to
build the whole website is also growing constantly. At one day we need
to think about this circumstance.

We currently using still DTD HTML 4.01 Strict for the websites and not
something more up to date, but this has of course some reason.

> 2020-02-29 19:33 GMT-03:00, Holger Wansing <hwansing@mailbox.org>:
>> Package: www.debian.org
>> As tidy constantly complains about
>> *** /srv/www.debian.org/www/partners/2018/index.en.html
>> line 159 column 3 - Warning: <img> attribute "width" has invalid value "height="
>> line 255 column 3 - Warning: <img> attribute "width" has invalid value "height="


>> which is all about width/height information in svg graphics:
>> what about converting the relevant images (google.svg and
>> stackpack-logo-reversed.svg)
>> into some other format, like png?

This would be a workaround in my eyes instead of solving the root of the

How can I run this tidy thing locally so I can try to narrow down the issue?

>> Please excuse my ignorance, I have no detailed knowledge on vector
>> graphics:
>> maybe there is a reason why we should use svg there.
>> However, png is widely used in the partners section...

I'd like to see we do not convert SVG to PNG here because this is a step
back in my eyes, especially as we need to take the advantage of getting
all sites mobile ready one day and this shouldn't be done by graphics
and logos with some other formats than SVG as this will always result in
higher data rates to transfer.

Carsten Schoenert

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