Show diff when running ruff format

[pgiraud]

No description provided.

[pgiraud]

Please review.

[rjuju]

I don't see those options in the documentation at https://docs.astral.sh/ruff/formatter/, do you know where they are documented?

What I do see on that page is

A unified command for both linting and formatting is planned.

We should probably wait for that to be merged or specify an explicit version of ruff to avoid breaking all the CI because ruff decided to change again how to format code. And since it seemed to have happened recently, I would be in favor of fixing the ruff version for as long as we can.

[pgiraud]

The --diffoption has been added to ruff format command a while ago. https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md#011

Indeed, the documentation is missing. It's is available via --help though.

[rjuju]

ok, I would still prefer to hardcode whatever is the current version in the requirements file and make sure everyone and the CI stays on the same version to avoid the same problem as we had last week.

[rjuju]

(sorry typo, I meant version not option, updated the previous comment)