class RuboCop::Formatter::DisabledConfigFormatter

def output_exclude_list(output, offending_files, cop_name)
  require 'pathname'
  parent = Pathname.new(Dir.pwd)
  # Exclude properties in .rubocop_todo.yml override default ones, as well
  # as any custom excludes in .rubocop.yml, so in order to retain those
  # excludes we must copy them.
  # There can be multiple .rubocop.yml files in subdirectories, but we
  # just look at the current working directory
  config = ConfigStore.new.for(parent)
  cfg = config[cop_name] || {}
  excludes = ((cfg['Exclude'] || []) + offending_files).uniq
  output.puts '  Exclude:'
  excludes.each do |file|
    file_path = Pathname.new(file)
    begin
      relative = file_path.relative_path_from(parent)
      output.puts "    - '#{relative}'"
    rescue ArgumentError
      output.puts "    - '#{file}'"
    end
  end
rescue LoadError
  # Fallback to Enabled: false for Ruby < 1.9.3
  output.puts '  Enabled: false'
end