Is it possible to export the wildmatch function? I'm looking to do some pattern matching and it'd be awesome to just re-use the pattern matching used by git.

I found this issue requesting this which has existed for a long time:
#5458

There have also been some updates to the git.git wildmatch implementation that ought to be brought into libgit2:
https://github.com/git/git/commits/master/wildmatch.c

I'd be happy to make these changes.