With this, we are able to get rid of all the increasingly broken file
system utility code, and trust boost::filesystem to handle all the
cross-platform complexity.
The first version of this PR centred around C++17 & std::filesystem,
but support remains too elusive; it seems works out of the box in
Visual Studio (especially 2019), but is entirely missing from the Mac
dclang, and even with GCC 8.0 it requires an explicit '-l c++fs'.
Luckily the std:: version is almost exactly the boost:: version (not
surprising) so when the world's caught up, we can ditch Boost and go
all stdlib.
Setting up Conan requires a bit of work; we'll want to document the
details in the README.
We want to move to auto-formatting all our code, and it just seemed impossible
to make cxxopts usage tidy under clang-format's dominion. While trying to work
out its quirks, I realised that CLI11 did everything I wanted much better, and
so we've switched.
We're also going to chuck the usage of ExternalProject_Add(), at least for the
simplest use cases such as single-header include files. We'll just commit them
directly; that's kind of the whole point.
The one discipline we'll maintain is that commits that involve third_party/
should be as self-contained as possible (without breaking the app).
This is a recreation of the PR @robertlong submitted long ago here:
https://github.com/facebookincubator/FBX2glTF/pull/97
Refactors and whitespace conflicts made this easier.
There is still a substantial rewrite of the texture-loading and
file-path handling pending, for sometime soon.
Did not mean to commit/push the current state of master. But rather than
mess up source control history with a force push, I'll just try to hurry
to a stable point.
hhalen
Pär Winzell
Pär Winzell
Simon
abbaswasim
Michael Ranieri