Add db/schema.rb to the excluded files

[fidalgo]

The file db/schema.rb could be added to the excluded files, because we do not want Rubocop messing with that file.
In my projects I need to add:

AllCops:
  Exclude:
    - db/schema.rb

and I guess other users too. So I'm asking if we can make it a rule.

[andyw8]

👍

I think the bin/ directory should also be ignored by default, since it's expected to contained auto-generated binstubs.

[koic]

Not all files contained in the bin directory are automatically generated.
For example, bin/setup is expected to be edited by users.

 # This script is a way to setup or update your development environment automatically.
 # This script is idempotent, so that you can run it at anytime and get an expectable outcome.
 # Add necessary setup steps to this file.

https://github.com/rails/rails/blob/v6.0.2.rc1/railties/lib/rails/generators/rails/app/templates/bin/setup.tt#L13

For this reason, there is a possibility that an offense that cannot be detected may be encountered but let's see what happens when we exclude the entire bin directory.