Rubocop: Make it possible to enable/disable pending cops via a configuration option

[bbatsov]

Is your feature request related to a problem? Please describe.

It seems some people are frustrated by the fact they have to manually enable/disable pending cops (see https://github.com/rubocop-hq/rubocop/issues/7771). This also came up a few times in the RuboCop defaults survey.

Describe the solution you'd like

We should add configuration option allowing pending cops to be treated as pending (default), enabled or disabled by default. This would allow everyone to decide how to best handle those those.

Describe alternatives you've considered

I don't think there are any better alternatives.

@rubocop-hq/rubocop-core Any thoughts on this?

[koic]

I think that the new feature will lead to a solution. I'm considering command line and configuration options.

Command line options

Run including pending cops.

% rubocop --with-pending-cops

Run excluding pending cops.

% rubocop --without-pending-cops

.rubocop.yml configuration

In addition, it is an example to specify in .rubocop.yml instead of the command line option. These configuration values have the same meaning as the Enabled option's values.

AllCops:
  EnabledNewCops: pending # default

AllCops:
  EnabledNewCops: true

AllCops:
  EnabledNewCops: false

Maybe option and configuration names could be considered further.

[bbatsov]

% rubocop --with-pending-cops

I'm fine with the proposal but let's use naming like --enable/disable-pending-cops instead. I think that's easier to understand.

AllCops:
  EnabledNewCops: pending # default

Yeah, that's more or less what I had in mind. I guess the option can be named "NewCops" and have potential values "enable", "disable", "pending". Generally, we can go only with the command-line option, as users can put it in their .rubocop if they want to use it all the time.

[koic]

These naming sounds easy to understand 🌟I will take this issue!

[ShockwaveNN]

I think it's worth mention that final variant in rubocop 0.82.0
not

AllCops:
  EnabledNewCops: true

But

AllCops:
  NewCops: enable

[koic]

EnableNewCops: true seems like a good name, however NewCops accepts three values: enalbe, disable, and pending.

[danielpowell4]

Thank you thank you thank you