CI/Linux: Build/publish Docker images used to create AppImages

[guihkx]

This does the exact same as #695 did, but for AppImages now.

I understand this PR introduces a lot of changes, and it's always annoying to review these. So, IMO simply running the resulting AppImages on your Linux distro and making sure they work is a good enough of a "review" for me...

Fixes #692

[guihkx]

I've tested the resulting AppImages using podman, on clean container images of two LTS versions of Ubuntu:

• Ubuntu 20.04 (Qt 5 AppImage) (command used: podman run --rm -e APPIMAGE_EXTRACT_AND_RUN=1 -e DISPLAY -v $XAUTHORITY:/root/.Xauthority:ro -v /tmp/.X11-unix:/tmp/.X11-unix -v ./Notes_Qt5.AppImage:/Notes.AppImage ubuntu:20.04 bash -c 'apt-get update && apt-get install -y --no-install-recommends libfontconfig1 libgl1 libx11-6 libxcb1 && /Notes.AppImage')

  Screenshot

  

• Ubuntu 24.04 (Qt 6 AppImage) (command used: podman run --rm -e APPIMAGE_EXTRACT_AND_RUN=1 -e DISPLAY -e LANG=C.UTF-8 -v $XAUTHORITY:/root/.Xauthority:ro -v /tmp/.X11-unix:/tmp/.X11-unix -v ./Notes_Qt6.AppImage:/Notes.AppImage ubuntu:24.04 bash -c 'apt-get update && apt-get install -y --no-install-recommends libgl1 libegl1 libfontconfig1 libx11-6 && /Notes.AppImage')

  Screenshot

  

I've also tested both AppImages on my Arch Linux machine, and they seem to work as expected.

[nuttyartist]

I'll be testing this later today. 👍

[guihkx]

@nuttyartist Gentle ping.

Were you able to test this yet? I was hoping to merge this soon, so we can do a minor release to fix the broken AppImages of v2.3.0.

I have the work for the RPM packages ready as well. I'm just waiting for this to get merged first.

[nuttyartist]

Sorry about that! I’m currently on a holiday, so I’ll try to test it right after. If in your testing this seems to fix the issue then feel free to merge. Did I set you as a collaborator for the notes foss website repo? If so, you could update the links.

[guihkx]

Sorry about that! I’m currently on a holiday

That's no problem. :)

If in your testing this seems to fix the issue then feel free to merge.

It definitely does, but one extra confirmation is always good.

Did I set you as a collaborator for the notes foss website repo? If so, you could update the links.

I believe you did, yes.

Anyway, I think I'll wait a few more days for you to test this.

If you're still not able to until then, I'll merge this one and the next RPM pull request (I've also tested it). And after that, I'll prepare a new minor release.

Would that be acceptable for you?

[nuttyartist]

If in your testing this seems to fix the issue then feel free to merge.

I can test it in 5 days, if you don't mind waiting (I forgot my Linux USB stick at home, I believe).

[guihkx]

Sure, no problem.

[guihkx]

Gentle ping. Are you able to test this today? I want to hopefully merge this and the RPM pull request this weekend.

[nuttyartist]

Yes, thanks for reminding. I will test this today.

[nuttyartist]

Sorry about the long delay, seems to work fine on my Linux machine! Feel free to merge!

[zjeffer]

Tested and works.
Still had to add -platform xcb to the commandline options because of #633, though. As Wayland is becoming the default on many desktop environments, that issue might get more attention.

LGTM, nice changes.

[guihkx]

Thank you both for testing!