pytorch

8c5c07c2 - Package config/template files with torchgen (#78942)

Package config/template files with torchgen (#78942) Package config/template files with torchgen This PR packages native_functions.yaml, tags.yaml and ATen/templates with torchgen. This PR: - adds a step to setup.py to copy the relevant files over into torchgen - adds a docstring for torchgen (so `import torchgen; help(torchgen)` says something) - adds a helper function in torchgen so you can get the torchgen root directory (and figure out where the packaged files are) - changes some scripts to explicitly pass the location of torchgen, which will be helpful for the first item in the Future section. Future ====== - torchgen, when invoked from the command line, should use sources in torchgen/packaged instead of aten/src. I'm unable to do this because people (aka PyTorch CI) invokes `python -m torchgen.gen` without installing torchgen. - the source of truth for all of these files should be in torchgen. This is a bit annoying to execute on due to potential merge conflicts and dealing with merge systems - CI and testing. The way things are set up right now is really fragile, we should have a CI job for torchgen. Test Plan ========= I ran the following locally: ``` python -m torchgen.gen -s torchgen/packaged ``` and verified that it outputted files. Furthermore, I did a setup.py install and checked that the files are actually being packaged with torchgen. Pull Request resolved: https://github.com/pytorch/pytorch/pull/78942 Approved by: https://github.com/ezyang