My project is extending open-source classes from a third-party gem that we don't want to hold to the same coding standards as our own code. Refactoring the gem code isn't a viable option. We just want Rubocop to ignore the copied code.
How can I instruct Rubocop to completely ignore a file or directory?
As per orde's comment with the link to the manual I found .rubocop.yml and added the following:
AllCops:
Exclude:
- 'path/to/excluded/file.rb'
where the path is relative to .rubocop.yml