Switch from cmake-format to gersemi for formatting CMake listfiles

[ManifoldFR]

This is a rather large PR (due to reformatting many, many files)

Closes #719

[ManifoldFR]

Waiting on #720 to be merged.

[nim65s]

Is this necessary ?
Is it going to be necessary on each and every project of ours ?
Couldn't we just use some default settings instead ?

[ManifoldFR]

I tried to put the options that would create the least changes. I think some of these might be the default values though

[nim65s]

Do we care about the number of changes ?
Those are already 3k on a 15k codebase, so IMHO it could be 2 or 3 times that and we would not see the difference, as long as it is in a single commit documented in .git-blame-ignore-revs

[ManifoldFR]

Okay, in that case, I remove some of the options in the gersemirc file.

[nim65s]

I'm still not sure about that indent: 2, but I'm not going to block this PR for that either.
Before merging, I think we should clean git history, with:

1. update .pre-commit-config.yml + setup .gersemirc
2. pre-commit run -a
3. add previous to .git-blame-ignore-revs

[ManifoldFR]

I'm still not sure about that indent: 2, but I'm not going to block this PR for that either. Before merging, I think we should clean git history, with:

1. update .pre-commit-config.yml + setup .gersemirc
2. pre-commit run -a
3. add previous to .git-blame-ignore-revs

The default indent in gersemi is 4.
I will edit the git history to create a separate commit for 1. and 2.

[ManifoldFR]

Done @nim65s 😃

[jorisv]

Be sure to replace all # cmake-format: by # gersemi:

Also, I'm curious on how well gersemi handle custom command: https://github.com/BlankSpruce/gersemi?tab=readme-ov-file#lets-make-a-deal

On Pinocchio with cmake-format, I had to do this: https://github.com/stack-of-tasks/pinocchio/blob/devel/.cmake-format.yaml

Last, did you know if gersemi is handling comment in a better way ? cmake-format was joining consecutive line together, make huge comment block.

[ManifoldFR]

Be sure to replace all # cmake-format: by # gersemi:

Also, I'm curious on how well gersemi handle custom command: https://github.com/BlankSpruce/gersemi?tab=readme-ov-file#lets-make-a-deal

On Pinocchio with cmake-format, I had to do this: https://github.com/stack-of-tasks/pinocchio/blob/devel/.cmake-format.yaml

Last, did you know if gersemi is handling comment in a better way ? cmake-format was joining consecutive line together, make huge comment block.

We can do the custom command stuff later. Checking for this would require some more in-depth look at our own code so that gersemi can pick up definitions, or introduce stubs to tell gersemi how args should be formatted.