isle-portable AppImage packaging

Add app image packaging script, AppRun for the AppImage and desktop file for LEGO Island (can be moved elsewhere, not specific to appimage)

For #366

Jun 28 '25 13:06 Damglador

This should probably be added to the release Ci

Jun 28 '25 19:06 foxtacles

I have absolutely zero clue how to work with CI, but I'll try. Right after I figure out how to fully automate it locally.

Jun 28 '25 20:06 Damglador

Oh no way, I did it!

The only thing left is to figure out how to at least make it use xdg file picker instead of the default Qt one, if it's even possible.

Jun 29 '25 02:06 Damglador

Let's merge https://github.com/isledecomp/isle-portable/pull/407 first. This PR needs a rebase, and perhaps additional fixes, after that.

Jun 29 '25 15:06 madebr

FlatPack PR is merged, can you please resolve the conflicts, that should make this one ready too

Jun 29 '25 19:06 AJenbo

Checking on my repo if it builds properly. Also, I think I should remove ,*.AppImage from pattern on Download All Artifacts, since it's in the Release artifact

Jun 29 '25 20:06 Damglador

All done

Jun 29 '25 20:06 Damglador

Looks good, but because the Release and CI workflow are split, I cannot see it running or test its binaries

Jun 29 '25 20:06 madebr

I have release binaries on my repo https://github.com/Damglador/isle-portable/releases/tag/continuous

Jun 29 '25 20:06 Damglador

works for me

Jun 29 '25 20:06 AJenbo

Yup, the appimage works perfectly! Great job!

Jun 29 '25 21:06 madebr