Method for enabling specific preview rules

[btjones0]

My ruff configuration is structured as a deny list where I've enabled all rules and then disable the rules that I don't want.

In 0.0.289, this looked something like:

preview = true  # added in 0.0.289
select = [
    "ALL",
    # other specific preview codes
]
ignore = [
    "PREVIEW",  # added in 0.0.289
    # other selectors I don't want
]

With the removal of the "PREVIEW" selector in 0.0.290, it doesn't look like there's an easy way to disable all the preview checks that I don't want without either:

• changing my config to be an allow list rather than a deny list, or
• explicitly ignoring every preview check that I'm not selecting with it's fully qualified code.

I would love to have some mechanism to select specific preview rules without doing either of these.

[charliermarsh]

Thanks for this -- we actually discussed this internally last week and have something proposed in #7390 that would enable this kind of workflow (although we haven't yet decided to merge it). I'll \cc @zanieb who is owning preview behavior and thinking about these kinds of configuration issues.

(Zanie is out next week so might be a few days before a reply.)

[zanieb]

Ah we thought the PREVIEW selector was generally useless for ignores because of it's precedence but I missed that it was usable with ALL.

I'm happy with the approach in #7390 but wanted to wait for some user feedback regarding the current experience to ensure it resolves your needs. Please let us know if it'd work for you!

[btjones0]

The approach in #7390 looks good to me.