ruff: Add --extend-exclude to ruff format

[tingerrr]

Summary

See commit messages.

Closes #18980

Test Plan

At $dayjob I'm working on a repository in which we call ruff/ty with --extend-exclude because of various reasons. I uninstalled the version of ruff installed by uv and tested this installation, and it did what I expected.

It respected both the default configured excludes in pyproject.toml and the extended excludes passed via --extend-exclude, which I could confirm with both --show-files and simply running the check.

[tingerrr]

It seems that I've introduced a new warning in some snapshot tests. That's probably not intended, so I'll have to look into that. I don't know enough about the codebase to know why this is the case, though.

[ntBre]

Thanks! This looks reasonable to me compared to the check version. I'll also ping Micha for a review in case it was intentional to exclude these flags, or I'm missing something else.

[astral-sh-bot]

ruff-ecosystem results

Linter (stable)

✅ ecosystem check detected no linter changes.

Linter (preview)

✅ ecosystem check detected no linter changes.

[MichaReiser]

This looks good to me. Would you mind adding a regression test in

ruff/crates/ruff/tests/cli/format.rs

Line 830 in 044532a

fn exclude_stdin() -> Result<()> {

[tingerrr]

This looks good to me. Would you mind adding a regression test in

ruff/crates/ruff/tests/cli/format.rs

Line 830 in 044532a

fn exclude_stdin() -> Result<()> {

I assume you mean tests which use --extend-exclude since the stdin warning arose from resolving the files for --show-files.

[MichaReiser]

Yes, a test for --extend-exclude. I only shared the line so that you roughly know where to add it

[MichaReiser]

Thank you