[Nix-dev] icon-cache problem

[Sergey Mironov]

OK, I see. Really, I found many packages doing

  preFixup = "rm $out/share/icons/hicolor/icon-theme.cache";

so I'll post similar update for gparted for now. Regarding hooks - I
think I don't completely understand the idea: who should declare/own
those hooks? And if we decide to follow the 'fixup' way, then why
don't we simply hardcode this [rm
$out/share/icons/hicolor/icon-theme.cache] into fixup stage?

Sergey


2013/11/5 Vladimír Čunát <vcunat at gmail.com>:
> On 11/05/2013 01:23 PM, Sergey Mironov wrote:
>>
>> Hi. I've discovered that some GUI applications regenerate icon-cache
>> during install. It works for other distros but leads to a confusion in
>> Nix. For example, after installing gparted, all other user-installed
>> applications lost their icons in Xfce main menu. That is because nixos
>> places icon-cache of gparted under ~/.nix-profile/share/icons/hicolor.
>> Xfce sees the cache (which contains only gparted icons) and renders
>> all non-gparted menu items using default "no-icon" stub.
>>
>> The simplest solution to my problem would be to fix the gparted
>> installer (say, remove the cache using postInstall hook) but it
>> doesn't look clever enough. Is it possible to do something better than
>> that, for example, filter out this cache globally or prevent it from
>> being linked?
>
>
> Yes, this is a known problem. There's a hardcoded fix for system
> enviroments, which generates the gtk icon cache there. Having it installed
> in individual packages is probably useless (many postInstalls remove it).
> Note: KDE have an independent solution of this (kbuildsycoca IIRC).
>
> It's in my long-term ToDo list to have some kind of modular solution for
> such things, so we can get hooks into post-build of any
> user/system-environment. Feel free to look into it, my ToDo is always
> getting more items than I can process, and icons don't seem to be a
> high-priority issue for most people here (including myself).
>
> Vlada
>
>
>
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