Create a MacOS bundle

[MStraeten]

icns format is needed to create an macOS app package

[krupkat]

Thanks a lot!

I made a few small changes and moved the new files to /misc/build/macos. Hopefully I didn't break the script, I'll merge it later today.

I'll leave the macports libSDL path as is - if there is a brew user who would like to help fix the script, please feel free to send a PR. The script could later be updated to use otool for finding the library paths, so it keeps working with different library versions.

[MStraeten]

the script may need some further tweaks -depending on feedback on the prebuild package announced on pixls.us
maybe there're remaining dependencies to my local environment that need be taken into account.

[krupkat]

Very cool, thanks!
I'll try adding the bundle command to the CI.

If it works I can also add it to https://github.com/krupkat/xpano-release-builder/, so that the bundles are uploaded automatically to each release with a checksum. It would be x86 so far only, but it is probably doable to cross-build to arm later.

edit:
it seems to be working with brew based install on the CI runner, I just had to do this change: b36955c, because the build directories are not cached there

[krupkat]

when I used "set -e" to exit on error, the script errors out when iterating over an empty list

[krupkat]

I added the bundle build to the release builder (build job), the new release already has the built files (https://github.com/krupkat/xpano/releases/tag/v0.16.0).

As with the windows build, user can verify the checksum in the github build log.

Maybe some patches will be needed and there is still no m1 support. Seems that Github will provide m1 runners by end of year (github/roadmap#528).

Thanks for your help! @MStraeten