Rubocop silently fails with small error in config file

[smackesey]

Rubocop seems to silently fail when there is a small typo in a configuration file.

---

Expected behavior

Rubocop should print an error message indicating that the config file did not parse correctly.

Actual behavior

Rubocop runs but does not actually perform any linting.

Steps to reproduce the problem

Create a directory with two files:

.rubocop.yml

LayoutEmptyLinesAroundArguments:
  Enabled: false

test.rb

def badName
  if something
    test
    end
end

Now go to the directory and run rubocop --debug test.rb. You should see some debug output inidicating configuration loading but no linting output.

RuboCop version

0.80.0 (using Parser 2.7.0.2, running on ruby 2.7.0 x86_64-darwin19)

[tejasbubane]

Output shows unrecognized cop. Should this be improved?

Inheriting configuration from /Users/tejas.bubane/opensource/rubocop/.rubocop_todo.yml
Error: unrecognized cop LayoutEmptyLinesAroundArguments found in .rubocop.yml
Finished in 0.2368809999898076 seconds

[smackesey]

@tejasbubane Hmm, I don't get this message. Here is my output:

For /Users/smackesey/Desktop/tester: configuration from /Users/smackesey/Desktop/tester/.rubocop.yml
Default configuration from /Users/smackesey/.asdf/installs/ruby/2.7.0/lib/ruby/gems/2.7.0/gems/rubocop-0.80.0/config/default.yml
Finished in 0.07307699997909367 seconds

[lxxxvi]

I also get the (expected) error

Error: unrecognized cop LayoutEmptyLinesAroundArguments found in .rubocop.yml

(Ruby 2.7.1, RuboCop 0.85.1)

[tejasbubane]

@smackesey Are you still getting that error with latest rubocop?

[smackesey]

Just tested again with rubocop 0.85.1, ruby 2.7.1.

[I] ❯ rubocop --debug test.rb
For /Users/smackesey/Desktop/tester: configuration from /Users/smackesey/Desktop/tester/.rubocop.yml
Default configuration from /Users/smackesey/.asdf/installs/ruby/2.7.1/lib/ruby/gems/2.7.0/gems/rubocop-0.85.1/config/default.yml
Finished in 0.07465199998114258 seconds

Still no error message for me.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contribution and understanding!

[dvandersluis]

This will now (as of #9171, not released yet) output the following (it outputs on stderr so if you're still having this issue check that maybe you're not suppressing it):

Error: unrecognized cop LayoutEmptyLinesAroundArguments found in .rubocop.yml
Did you mean `Layout/EmptyLinesAroundArguments`?

I think this issue can be closed. (/cc @bbatsov)