RUF100 without selecting the specific error codes

[spaceone]

RUF100 removes noqa comments if the lines doesn't have the underlying issue.

This doesn't work if the certain errors aren't part of the --select. I wouldn't have expect this:

$ cat foo.py
from foo import bar  # noqa: F401

foo = lambda x: None  # noqa: E731

import os  # noqa: E403

reload(os)  # noqa: F821
$ ruff --isolated --select RUF100 foo.py
foo.py:1:22: RUF100 Unused `noqa` directive (non-enabled: `F401`)
foo.py:3:23: RUF100 Unused `noqa` directive (non-enabled: `E731`)
foo.py:5:12: RUF100 Unused `noqa` directive (unknown: `E403`)
foo.py:7:13: RUF100 Unused `noqa` directive (non-enabled: `F821`)
Found 4 errors.
4 potentially fixable with the --fix option.
$ ruff --isolated --select RUF100 --fix foo.py
Found 4 errors (4 fixed, 0 remaining).
$ cat foo.py
from foo import bar

foo = lambda x: None

import os

reload(os)

I can also only select codes which ruff is aware of:

$ ruff --isolated --select RUF100,F401,E731,F821 foo.py
foo.py:5:12: RUF100 Unused `noqa` directive (unknown: `E403`)
Found 1 error.
1 potentially fixable with the --fix option.
$ ruff --isolated --select RUF100,F401,E731,F821,E403 foo.py
error: Invalid value 'E403' for '--select <RULE_CODE>': Unknown rule selector `E403`

For more information try '--help'

E403 is not yet supported therefore this is always removed and one cannot prevent this.

[charliermarsh]

You can add E403 to "external" to prevent this, I think?

[tool.ruff]
external = ["E403"]

[charliermarsh]

I'd recommend running ruff --extend-select RUF100. That way, it'll enforce your standard configuration.

[spaceone]

I somehow need a way to exclusively select RUF100 so that I can get a list of issues (and fixes) only for that one.

[spaceone]

fixing only is possible via:
ruff --select ALL --extend-select RUF100 --fix-only --unfixable ALL --fixable RUF100 $(python_files)

selecting only is possible via:
ruff --select ALL --extend-select RUF100 $(python_files) | grep RUF100

(with optional --select ALL)