Will this count as a bug-fix and land into 19.03, or fall under 19.09?

Normal bug fixes aren't normally backported but as a music player that doesn't actually play music is pretty useless and nothing else depends on this, I would say it's perfectly safe to do so. Can you confirm this PR is working for you?

Happy to test it, but would really need a pointer on how to do that. I’ve been using Nix(OS) for some time now, but haven’t managed to dive deeper into it and to be brutally honest, the documentation is not its best feature.

Do you have a local nixpkgs clone that you normally run against or are you using channels?

@silverhook I'd use https://github.com/Mic92/nix-review:

nix-env -iA nix-review
nix-review pr 63889
./results/elisa/bin/elisa

This version works for me here, so I'll go ahead and merge it.

Thanks, @JohnAZoidberg, that helped a huge deal :D

@peterhoeg, I apologise for the late reply.

The window does not open, and this is what I get:

[nix-shell:~/.cache/nix-review/pr-63889]$ ./results/elisa/bin/elisa
Invalid Context= "panel" line for icon theme:  "/home/hook/.local/share/icons/Oranchelo/panel/22/"
Icon theme "gnome" not found.
QQmlApplicationEngine failed to load component
qrc:/qml/ElisaMainWindow.qml:23 plugin cannot be loaded for module "org.kde.elisa": Cannot load library /nix/store/9z77qrxnlzqak94f39phb69vag6b8gn1-elisa-0.3.0/lib/qt-5.12/qml/org/kde/elisa/libelisaqmlplugin.so: (/nix/store/9z77qrxnlzqak94f39phb69vag6b8gn1-elisa-0.3.0/lib/qt-5.12/qml/org/kde/elisa/libelisaqmlplugin.so: undefined symbol: _ZTI19AllAlbumsProxyModel)

That's because you cannot run qt applications directly - they have to be installed in the environment. I have just merged the backport, so you should see the new version in 19.03 soon.

I just updated NixOS and get the following error:

Invalid Context= "panel" line for icon theme:  "/home/hook/.local/share/icons/Oranchelo/panel/22/"
Icon theme "gnome" not found.
fish: 'elisa' terminated by signal SIGSEGV (Address boundary error)

Installed in the global environment on 19.03?

Exactly.

Any chance you can get a backtrace or try running it under strace?

➤ strace elisa 2> elisa-strace

fish: 'strace elisa 2> elisa-strace' terminated by signal SIGSEGV (Address boundary error)

elisa-strace.txt

@peterhoeg , just updated yesterday and tried it again, same result.

@peterhoeg I can confirm it runs in the VM at least from an xterm session. Colour me surprised …

How about using a different user (without anything in $HOME)?

It works on 19.09 now :)