MEG: Add git pre-commit configuration

[hoechenberger]

I copied MNE's pre-commit config

Once merged, we can enable pre-commit CI, https://pre-commit.ci

Merge checklist

Maintainer, please confirm the following before merging.
If applicable:

• All comments are resolved
• This is not your own PR
• All CIs are happy
• PR title starts with [MRG]
• whats_new.rst is updated
• New contributors have been added to CITATION.cff
• PR description includes phrase "closes <#issue-number>"

[codecov]

Codecov Report

Merging #1173 (078819b) into main (51d0da3) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1173      +/-   ##
==========================================
- Coverage   97.63%   97.63%   -0.01%     
==========================================
  Files          40       40              
  Lines        8662     8661       -1     
==========================================
- Hits         8457     8456       -1     
  Misses        205      205              

Files	Coverage Δ
mne_bids/path.py	97.38% <ø> (ø)
mne_bids/tests/test_dig.py	100.00% <ø> (ø)
mne_bids/tests/test_path.py	99.85% <ø> (ø)
mne_bids/tests/test_read.py	99.71% <ø> (ø)
mne_bids/utils.py	94.92% <ø> (ø)

[larsoner]

I enabled the GitHub app so if you close this PR and open another it might show up

[hoechenberger]

I enabled the GitHub app so if you close this PR and open another it might show up

Cool, thanks!

[hoechenberger]

Oh the pre-commit CI bot is already here :)

[hoechenberger]

I removed yamllint and codespell for now, we can add them later

[hoechenberger]

I would say this is ready to go.

In follow-up PRs we should

• Drop flake8
• Add yamllint
• Add codespell
• Move from setup.cfg to pyproject.toml, which was added in this PR
• Update the dev docs to mention how to use git pre-commit

[sappelhoff]

Thanks! could you also add some instructions on the pre-commit hooks to the dev documentation, please?

[hoechenberger]

@sappelhoff Happy? :)

[sappelhoff]

thanks Richard!