Add config overrides option

[soullivaneuh]

What is the problem you're trying to solve?

We are working on a global CS tool including stylelint for both .css and .scss file (with the scss plugin).

Some CSS rules does not have to apply on .scss file. Please see our issue for details: https://gitlab.com/nexylan/pretty/issues/23

The only workaround I have now is to completely disable the function-name-case rule, even for .css files.

What solution would you like to see?

Have the possibility to define a overrides section on the configuration file.

The way eslint does it seem pretty good: https://eslint.org/docs/user-guide/configuring#disabling-rules-only-for-a-group-of-files

We may do something like this:

plugins:
  - stylelint-scss
extends:
  - stylelint-config-standard
  - stylelint-config-recommended-scss
  - stylelint-config-prettier
overrides:
  files:
    - '*.scss'
  rules:
    function-name-case: null

Or include the plugin on overrides:

extends:
  - stylelint-config-standard
  - stylelint-config-prettier
overrides:
  files:
    - '*.scss'
  plugins:
    - stylelint-scss
  extends:
    - stylelint-config-recommended-scss

As overrides would be able to handle any config as the root one, you have a lot of possibilities.

Regards

[hudochenkov]

Duplicates #3128

[soullivaneuh]

Oh didn't see that one, thanks and sorry for the duplicate!