fix(walk): match filesystem casing for entries on macOS #33
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Closes #32
We now use a call to
expandFilename
to get the path's casing as it exists in the filesystem. This has refactored things a bit so that instead of tracking relative paths and converting them to absolutes, we use absolutes and convert them relatives.This PR also introduces macOS testing on travis against both stable & devel versions of nim just like the linux tests. Stable Nim (< 0.19.0) on macOS will currently fail — this is because
FileSystemCaseSensitive
returnedtrue
for macOS until nim-lang/Nim#8411 which is in Nim >= 0.19.0 (currently devel but soon to be stable).All this means for users is that the casing of returned filesystem entries doesn't quite match the actual filesystem — the results are otherwise correct, so I don't consider this much of a showstopper.