Patch in glib in AppImage

[rithvikvibhu]

Closes #9, Closes #12.

Around 4 months ago, this PR was merged into glib2 and then released in version 2.69.1.

This PR:

• Replaces probonopd/linuxdeployqt with linuxdeploy/linuxdeploy which is more modular and better at detection (we pass in less arguments).
• Patches in glib into the AppImage (extract fs, copy files, build again) based on https://bbs.archlinux.org/viewtopic.php?pid=1994258#p1994258
• Exports fingertip binary also (not just the AppImage)
• Updates packaging readme

I've tested this on Manjaro / Arch. Would be great if someone can test it on Ubuntu before merging.

[JustYourAverageGithubUser]

appimage works on arch based Linux distros with this fix.

[buffrr]

Would be great if someone can test it on Ubuntu before merging.

Thanks for the PR! There seems to be an issue on Ubuntu 20. I get this error when opening the AppImage:

./Fingertip.AppImage: error while loading shared libraries: libffi.so.8: cannot open shared object file: No such file or directory

old AppImage works with the same setup/Ubuntu verison.

[rithvikvibhu]

Sheesh this whole PR's a bit embarrassing, didn't test in other distros and is also hacky >.<

Feel free to close this and rewrite it if needed.

[buffrr]

Sheesh this whole PR's a bit embarrassing, didn't test in other distros and is also hacky >.<

Haha no worries linux is a bit of a pain to package for with a 100 different distros requiring different things.

Feel free to close this and rewrite it if needed.

Don't have the bandwidth to deal with this right now. It may be something simple ;) I'll revisit later if no one has worked on it.

[rithvikvibhu]

I don't know what has changed recently, but without this PR, the CI build works on Ubuntu 18.04, 22.10, and manjaro/arch (rolling). So closing this as no longer required.

The build tried: https://github.com/imperviousinc/fingertip/actions/runs/4220153228 which is #32

ubuntu 18.04 (glibc 2.27):

ubuntu 22.10 (glibc 2.36):

(libfuse2 is no longer installed by default on ubuntu 22.04+ and needs sudo apt install libfuse2) so after this:

manjaro (glibc 2.37):

(ignoring the warnings, it works)