class RuboCop::Formatter::ProgressFormatter

appends the regular report data in the clang style format.
letters for files with problems in the them. In the end it
This formatter display dots for files with no offenses and

def file_finished(file, offenses) 

def file_finished(file, offenses)
  unless offenses.empty?
    count_stats(offenses)
    @offenses_for_files[file] = offenses
  end
  report_file_as_mark(offenses)
end

def finished(inspected_files) 

def finished(inspected_files)
  output.puts
  unless @offenses_for_files.empty?
    output.puts
    output.puts 'Offenses:'
    output.puts
    @offenses_for_files.each do |file, offenses|
      report_file(file, offenses)
    end
  end
  report_summary(inspected_files.size,
                 @total_offense_count,
                 @total_correction_count)
end

def initialize(output, options = {}) 

def initialize(output, options = {})
  super
  @dot = green(DOT)
end

def report_file_as_mark(offenses) 

def report_file_as_mark(offenses)
  mark = if offenses.empty?
           @dot
         else
           highest_offense = offenses.max_by(&:severity)
           colored_severity_code(highest_offense)
         end
  output.write mark
end

def started(target_files) 

def started(target_files)
  super
  @offenses_for_files = {}
  output.puts "Inspecting #{pluralize(target_files.size, 'file')}"
end