require "rails/code_statistics_calculator" require "active_support/core_ext/enumerable" class CodeStatistics #:nodoc: TEST_TYPES = ["Controller tests", "Helper tests", "Model tests", "Mailer tests", "Job tests", "Integration tests", "System tests"] HEADERS = { lines: " Lines", code_lines: " LOC", classes: "Classes", methods: "Methods" } def initialize(*pairs) @pairs = pairs @statistics = calculate_statistics @total = calculate_total if pairs.length > 1 end def to_s print_header @pairs.each { |pair| print_line(pair.first, @statistics[pair.first]) } print_splitter if @total print_line("Total", @total) print_splitter end print_code_test_stats end private def calculate_statistics Hash[@pairs.map { |pair| [pair.first, calculate_directory_statistics(pair.last)] }] end def calculate_directory_statistics(directory, pattern = /^(?!\.).*?\.(rb|js|coffee|rake)$/) stats = CodeStatisticsCalculator.new Dir.foreach(directory) do |file_name| path = "#{directory}/#{file_name}" if File.directory?(path) && (/^\./ !~ file_name) stats.add(calculate_directory_statistics(path, pattern)) elsif file_name =~ pattern stats.add_by_file_path(path) end end stats end def calculate_total @statistics.each_with_object(CodeStatisticsCalculator.new) do |pair, total| total.add(pair.last) end end def calculate_code code_loc = 0 @statistics.each { |k, v| code_loc += v.code_lines unless TEST_TYPES.include? k } code_loc end def calculate_tests test_loc = 0 @statistics.each { |k, v| test_loc += v.code_lines if TEST_TYPES.include? k } test_loc end def width_for(label) [@statistics.values.sum { |s| s.send(label) }.to_s.size, HEADERS[label].length].max end def print_header print_splitter print "| Name " HEADERS.each do |k, v| print " | #{v.rjust(width_for(k))}" end puts " | M/C | LOC/M |" print_splitter end def print_splitter print "+----------------------" HEADERS.each_key do |k| print "+#{'-' * (width_for(k) + 2)}" end puts "+-----+-------+" end def print_line(name, statistics) m_over_c = (statistics.methods / statistics.classes) rescue m_over_c = 0 loc_over_m = (statistics.code_lines / statistics.methods) - 2 rescue loc_over_m = 0 print "| #{name.ljust(20)} " HEADERS.each_key do |k| print "| #{statistics.send(k).to_s.rjust(width_for(k))} " end puts "| #{m_over_c.to_s.rjust(3)} | #{loc_over_m.to_s.rjust(5)} |" end def print_code_test_stats code = calculate_code tests = calculate_tests puts " Code LOC: #{code} Test LOC: #{tests} Code to Test Ratio: 1:#{sprintf("%.1f", tests.to_f / code)}" puts "" end end