Adopt inital noop ruff linter

[bjlittle]

🚀 Pull Request

Description

This pull-request adds the configuration for a no-op ruff linter i.e., the ruff linter runs but all rules are ignored, hence there are no compliance exceptions raised.

Note that, it adds the pre-commit hook to ensure that ruff (and it's configured rules) are applied for developers using pre-commit and on pull-requests via the pre-commit.ci service.

Also note that ALL linter rules have been selected in the pyproject.toml, and each of the currently existing 58 ruff linter rules (see here) have been ignored in the .ruff.toml configuration file, which extends the ruff configuration defined in the pyproject.toml.

As a strategy going forwards, I'd recommend that we:

• add permanent rule and file exceptions to the pyproject.toml
• use the .ruff.toml to collate all temporary rule and file exceptions, but aim to address these all over time.

Ultimately, the goal would be to have no temporary exceptions in the .ruff.toml configuration file. Also, we should always aim to minimize our permanent (documented) exceptions.

We can also slowly drop use of all the third-party packages that ruff replaces, namely:

• black
• flake8
• isort

Taking the above approach will allow us to adopt and become more compliant with ruff over time, at our own pace.

This strategy is open-ended, in that we have enabled ALL linter rules for ruff (with explicit ignores) so that we automatically adopt new non-preview linter rules by default. If new rules are implemented within ruff that break us, then either we address them straight away or add temporary/permanent exceptions as we deem fit.

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Consult Iris pull request check list

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (1e1a215) 89.69% compared to head (b0e9b0f) 89.69%.

❗ Current head b0e9b0f differs from pull request most recent head b32bedb. Consider uploading reports for the commit b32bedb to get more accurate results

Additional details and impacted files

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  Misses       1618     1618           
  Partials      733      733           

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[tkknight]

This looks great @bjlittle. It enables ruff but we can adopt the rules over time.