count_comments.rb

src_count = frozen_src_count = 0

ARGV.each do |gem_path|
  Dir.glob(File.join(gem_path, "**/*.rb")) do |file|
    next unless File.file?(file) && File.readable?(file)
    src_count += 1
    frozen_src_count += 1 if File.binread(file) =~ /^# frozen[-_]string[-_]literal: (true|false)$/
  end
end

puts "total files: #{src_count}"
puts "files with comment: #{frozen_src_count}"
puts "rate #{((frozen_src_count.to_f / src_count) * 100).round(1)}%"