Rubocop exclusion detector

rubocop_exclusions.rb

require 'pathname'
require 'yaml'

def exclusions(config, directory)
  config.flat_map do |k,v|
    if k == 'Exclude'
      v.map { |file_name| Dir.glob(directory.join(file_name)) }
    elsif v.is_a?(Hash)
      exclusions(v, directory)
    else
      []
    end
  end
end

STDIN.read.split("\n").each do |config_file_name|
  File.open(config_file_name, 'r') do |f|
    pathname = Pathname.new(config_file_name)
    config = YAML.load(f.read)
    puts exclusions(config, pathname.parent)
  end
end


# find . -name .rubocop.yml | grep -v vendor | ruby rubocop_exclusions.rb | grep -v vendor | grep -v /tmp/ | grep -v db/migrate | grep -v db/fixtures | grep -v test/fixtures | grep -v db/views | grep -v config/locales | grep .rb