Ruff pre commit on only changed lines

[MadaraCx]

Is there a way to only run the linter on lines that have been changed, rather than the whole file during a git commit?
I've added ruff so that it'll only check changed files, but haven't been able to figure out how to exclude unchanged lines from being checked as well.

[MichaReiser]

No, I'm sorry. That's not a functionality that Ruff's linter supports today (the formatter supports formatting individual lines).

[MadaraCx]

So you can configure it to format specific line ranges? How do you do that please?

[MichaReiser]

You can pass the --range option to ruff format

      --range <RANGE>
          When specified, Ruff will try to only format the code in the given range.
          It might be necessary to extend the start backwards or the end forwards, to fully enclose a logical line.
          The `<RANGE>` uses the format `<start_line>:<start_column>-<end_line>:<end_column>`.
          
          - The line and column numbers are 1 based.
          - The column specifies the nth-unicode codepoint on that line.
          - The end offset is exclusive.
          - The column numbers are optional. You can write `--range=1-2` instead of `--range=1:1-2:1`.
          - The end position is optional. You can write `--range=2` to format the entire document starting from the second line.
          - The start position is optional. You can write `--range=-3` to format the first three lines of the document.
          
          The option can only be used when formatting a single file. Range formatting of notebooks is unsupported.