Nightly Pull (#43294)
Summary:
Fixes https://github.com/pytorch/pytorch/issues/40829
This addresses remaining issues/improvements in https://github.com/pytorch/pytorch/issues/40829 that were brought up prior to https://github.com/pytorch/pytorch/issues/42635 being merged. Namely, this changes the name of the script and adds separate `checkout` and `pull` subcommands. I have tested it locally and everything appears to work. Please let me know if you encounter any issues. I hope that this supports a more natural workflow.
CC ezyang rgommers
Pull Request resolved: https://github.com/pytorch/pytorch/pull/43294
Reviewed By: pbelevich
Differential Revision: D23241849
Pulled By: ezyang
fbshipit-source-id: c24556024d7e5d14b9a5006e927819d4ad370dd7
