Enable ocamlformat on the part of the codebase that doesn't use CPPO

[Leonidas-from-XIV]

This enables ocamlformat on the subset of the codebase that does not use CPPO.

[panglesd]

I approve. I would also suggest adding a .git-blame-ignore-revs so that git blame output more meaningful result.

[panglesd]

In fact, currently not only .cppo.ml contains cppo instructions, see for instance monomorphic.ml.

They should either be renamed, or added to the ocamlformat-ignore!

[Leonidas-from-XIV]

Oh yes, that's true, you're right. I somehow assumed only the .cppo. files had CPPO in them, so I added them to the ignore-file to avoid churn. Turns out ocamlformat didn't reformat them anyway (so I didn't have to undo anything), maybe it has gotten sufficiently smart to skip them. Still good to have it skip over.

Also, I added the revision of the commit to the file. Unfortunately, there's no default name that git would pick up and users need to configure git for this to work but adding it won't hurt.

Can you please take another look?

[panglesd]

Looks good!

Also, I added the revision of the commit to the file. Unfortunately, there's no default name that git would pick up and users need to configure git for this to work but adding it won't hurt.

I think .git-blame-ignore-revs is the name that github picks, so it's at least directly useful in the github interface. (https://docs.github.com/en/repositories/working-with-files/using-files/viewing-a-file#ignore-commits-in-the-blame-view)

[Leonidas-from-XIV]

Ah, that's great to know, definitely useful!