onlyEnableWithConfig confusion

[goodwillcoding]

Is there more information on onlyEnableWithConfig. This does not seem to work. I have following directory structure

foo.code-workspace
bar\
  .swiftlint.yml

And it does not lint based on that file being present with the onlyEnableWithConfig option enabled.

I tried adding moving .swiftlint.yml to the same level as foo.code-workspace and it still did not work

foo.code-workspace
.swiftlint.yml
bar\
  .swiftlint.yml

I do NOT have and Swiftlint: Config Search Paths defined.