ruby-methods-stats.rb

#!/usr/bin/env ruby

require 'optparse'
options = {}
OptionParser.new do |opts|
  opts.banner = 'Usage: ruby-methods-stats [options]... [file]...'

  opts.on(
    '-h',
    '--help',
    'Show this help text'
  ) do
    puts opts
    exit
  end

  opts.on(
    '-sPath',
    '--source=Path',
    'get list of methods from this path'
  ) do |value|
    options[:source] = value
  end

  opts.on(
    '-tTarget',
    '--target=Target',
    'search this path for these methods'
  ) do |value|
    options[:target] = value
  end
end.parse!

methods_lines = `ag --ruby --nobreak --nofilename "def (self\.)?([a-z_0-9A-Z\?\!]+)" #{options[:source]}`.lines
methods_lines.map!(&:strip)
methods = methods_lines.map do |line|
  line.match(/(?:def (?:self\.)?)(?<method>[a-z_0-9A-Z\?\!]+)/)[:method]
end.uniq

puts "Methods found: #{methods.count}"

stats = methods.map do |method|
  [method, `ag -s -F --ruby --nobreak --nofilename #{method} #{options[:target]} | wc -l`.to_i]
end.sort_by(&:last)

stats.each do |k, v|
  puts "#{k}: #{v}"
end