Enforce directory casing in `filename-case`

We’d like to enforce casing of both files and directories. Is that possible, or would it need some kind of “root” directory to avoid caring about directory name outside of the project? Easy enough to achieve with js config files I guess. There is context.getCwd(), could probably work as well

[fisker]

Stop thinking about BREAKING/NON-BRAKING, just make it correct, it’s never been something we care. https://github.com/sindresorhus/eslint-plugin-unicorn/issues/686#issuecomment-1320449464

[mrmckeb]

Unfortunately that wasn’t clear to me in the initial issue, @SimenB.

• I agree that people should enforce consistent casing throughout, which is why I didn’t introduce separate options for folder/directory casing. But not everyone feels that way (see @moshest’s comment).
• The rule is named filename-case, which could be confusing to people if it starts checking the entire path without an opt-in/out. I’m not worried about a breaking change as much as breaking behaviour unexpectedly.

We could ship the rule today as minor change with an opt-in - as it’s ready to go - and wait for further feedback before pushing forward in another direction.