RuboCop 0.72.0 removed -R option, causing Rails linting to fail

[skipkayhil]

Your environment

• vscode-ruby version: 0.27.0
• Ruby version: any
• Ruby version manager (if any): asdf
• VS Code version: 1.43.2
• Operating System: macOS 10.14.6
• Using language server? (eg useLanguageServer is true in your configuration?) Yes
• RuboCop version: >0.72.0

Expected behavior

"ruby.lint": {
    "rubocop": {
      "lint": true,
      "rails": true
    }
  },

Adding this to my configuration should enable linting with rubocop, with rails cops enabled.

Actual behavior

Language Server Output:

Lint: executing rubocop -s <file> -f json -R -l...
invalid option: -R

RuboCop Changelog

The new way to use rails cops is to install the rubocop-rails gem and run RuboCop with rubocop --require rubocop-rails

I can make a PR for this to swap out the argument, but to maintain compatibility with older rubocops it may become more complicated.

[jordanbrock]

Is there a config file based workaround for this in the meantime?

I've tried downgrading to 0.71 but it throws a few requirement errors for some other gems.

[jordanbrock]

Actually, got it working with a mix of older gem versions:

  gem "rubocop", "0.71"
  gem "rubocop-rails", git: "https://github.com/rubocop-hq/rubocop-rails", tag: "v2.0.1"

But obviously, support for the latest versions would be preferred. I'm new to VSCode, so I'll have a poke around how extensions work and see if I can muddle a PR together at some point.

[abraham-chan]

@jordanbrock Here's what I did to get linting working with rubocop >0.71

• Remove "rails": true from settings.json
• Added require: rubocop-rails to my .rubocop.yml config file as per: https://github.com/rubocop-hq/rubocop-rails#rubocop-configuration-file

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[skipkayhil]

I can make a PR to update the docs later this week with the suggestion from @abraham-chan

[github-actions]

This issue has not had activity for 30 days. It will be automatically closed in 7 days.

[jhirn]

This still an actual problem. Experienced it today. Using rails: true in the linter config add -R. I think this option should be removed entirely. The recommended way to include rails cops should come from rubocop.yml, not the linter configuration.

[estiens]

still a problem

[lockieRichter]

Still seeing this issue more than a year later, currently using #598 (comment) as a workaround!