Add trymerge

[clee2000]

Tested locally using --dry-run

Apparently there is precedent for just copying the files over (see executorch PR huy linked below), so this copies over trymerge + dependencies

Removes check for release notes labels and sev

Can merge both ghstack and normal PRs. Be warned though, PRs merged this way will show up as "closed" instead of "merged" on the github UI

Future work: move trymerge + dependencies to test-infra (or download from pytorch), make sure its repo agnostic

Depends on pytorch/test-infra#5312

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/ao/388

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❌ 1 New Failure

As of commit ac79467 with merge base eb1511e ():

NEW FAILURE - The following job has failed:

• Run Regression Tests / test (CUDA Nightly, linux.g5.12xlarge.nvidia.gpu, --pre torch --index-url https://download.pytorc... / linux-job (gh)
  ##[error]The operation was canceled.

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[huydhn]

Btw, I did a similar move for ExecuTorch a while ago pytorch/executorch#2716 so that Edge team can use the cherry-pick feature (also part of mergebot). So, this justifies the need to move trymerge to somewhere that is reusable. The trickiest part to update would be https://www.internalfb.com/code/fbsource/fbcode/smart/pytorch/github_first_try_merge/my_handler.py?lines=24 where it refers to the trymerge script from PyTorch

[huydhn]

You'll probably need https://github.com/pytorch/pytorch/blob/main/.github/workflows/revert.yml as well to complete the process.

[huydhn]

Do you need a simple merge_rules like https://github.com/pytorch/executorch/blob/main/.github/merge_rules.yaml too? I don't remember off the top of my head how mergebot behaves without that file

[clee2000]

Btw, I did a similar move for ExecuTorch a while ago pytorch/executorch#2716 so that Edge team can use the cherry-pick feature (also part of mergebot). So, this justifies the need to move trymerge to somewhere that is reusable. The trickiest part to update would be https://www.internalfb.com/code/fbsource/fbcode/smart/pytorch/github_first_try_merge/my_handler.py?lines=24 where it refers to the trymerge script from PyTorch

Given that there is some precedent for just copying the files over, I decided to just copy them over and only removed the check for sev + release notes label

You'll probably need https://github.com/pytorch/pytorch/blob/main/.github/workflows/revert.yml as well to complete the process.

Holding off on this for now since I have no idea how or if it works with normally merged GH PRs

Do you need a simple merge_rules like https://github.com/pytorch/executorch/blob/main/.github/merge_rules.yaml too? I don't remember off the top of my head how mergebot behaves without that file

Added merge_rules.yaml

[huydhn]

Stamped! Just FYI, now that trymerge is here, if cherry pick bot is needed, you could also copy https://github.com/pytorch/pytorch/blob/main/.github/workflows/cherry-pick.yml and https://github.com/pytorch/pytorch/blob/main/.github/scripts/cherry_pick.py over