Multi-file analysis

[DetachHead]

currently many rules are limited by the fact that ruff can't do multifile analysis (eg. #6932)

raising a central tracking issue for this as suggested in https://github.com/astral-sh/ruff/issues/6932#issuecomment-1696641747

[danieleades]

is there any defined roadmap or plan for this? I can imagine it's a complicated problem to solve, especially without significant performance regressions. Would it be opt in?

[zanieb]

We are designing this right now. The roadmap is still being determined. As always, performance will be very important to us :)

[robtaylor]

Is there a branch I could track for this?

[MichaReiser]

You can follow our work on red-knot (see the red_knot crate and issues/PRs labeled with red-knot)

[jasha-hrp]

Hi @MichaReiser, has red-knot been renamed?

• I can't find red_knot or red-knot on crates.io
• I can't find red_knot or red-knot labels among the ruff issues.

[jasha-hrp]

Aah, is this what the ty repo is for? https://github.com/astral-sh/ty

[insane-dreamer]

Is there any hope we'll see this supported? Makes a big difference for codebases where there's a lot of inheritance, star imports, etc.

[MichaReiser]

This is happening right now but we decided to build it outside ruff first because it's a pretty big architectural shift. See astral-sh/ty