Bug#980396: inkscape: most icons missing until librsvg2-common installed

[Mattia Rizzolo]

Control: reassign -1 inkscape

On Tue, Jan 19, 2021 at 09:24:00AM +0000, Simon McVittie wrote:
> > Now, what I *really* wonder abuot is why the trigger (or, well, the code
> > behind it) is not running by itself on after libgdk-pixbuf-2.0-0.
> 
> It ... does? Take a look at
> /var/lib/dpkg/info/libgdk-pixbuf-2.0-0:amd64.postinst (or whatever
> architecture you're using). You'll see that it does the same thing when
> triggered that it does on any upgrade or fresh installation of gdk-pixbuf.
> (Of course if you can see any differences or bugs that I'm missing, then
> I'm happy to apply patches.)

Ohh, I seem to just skipped over that bit somehow.

> > Right, so apparently what used to trigger that was librsvg2-common,
> > which was pulled in by inkscape through the chain
> > 
> >     inkscape → libgtk2.0-0 → adwaita-icon-theme | gnome-icon-theme → librsvg2-common
> 
> If Inkscape is using GTK (i.e. gdk-pixbuf) to draw its icons, and some
> or all of those icons are only provided as SVGs, then librsvg2-common
> is required. Without librsvg2-common, gdk-pixbuf does not know anything
> about SVG files.

Right, apparently I didn't pay attention this fact all these year, since
it was pulled in by something else anyway.

> I think the root cause here is that Inkscape does not depend on
> librsvg2-common, but needs its functionality if you want an interactive
> UI with icons.

Right.

> Possible solutions:
> 
> * inkscape and/or libgtk2.0-0 Depends: librsvg2-common on Rust
>   architectures and Recommends: it on non-Rust architectures
>   (minimal installations with GTK on mainstream architectures will become
>   less minimal)

I'll pick this one and change that in inkscape.
I do believe icons are important enough to have a strict dependency.

> Do the inkscape maintainers have any thoughts on where the best place is
> to add Depends or Recommends?

Rather I wonder if there are any other gtk application rendering svg
icons that never realized they needed such dependency... :)


Thank you for all your insights!

-- 
regards,
                        Mattia Rizzolo

GPG Key: 66AE 2B4A FCCF 3F52 DA18  4D18 4B04 3FCD B944 4540      .''`.
More about me:  https://mapreri.org                             : :'  :
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Debian QA page: https://qa.debian.org/developer.php?login=mattia  `-
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