Use flay directly

[bf4]

Implemented per https://github.com/seattlerb/flay/blob/master/bin/flay

We still have to use flay.report as getting the information in it without calling it would basically require duplicating the code in it and replacing warn/puts with a data structure. So, in the end, it is still MetricFu::Utility.capture_output { flay.report }

I suppose I could redefine def flay.puts(msg) and def flay.warn(msg)
i.e. bin/flay

require 'flay'

flay = Flay.new Flay.parse_options(ARGV)

files = Flay.expand_dirs_to_files(*ARGV)

flay.process(*files)
flay.report

flay.report

  def flay.report prune = nil
    analyze

    puts "Total score (lower is better) = #{self.total}"

    if option[:summary] then
      puts

      self.summary.sort_by { |_,v| -v }.each do |file, score|
        puts "%8.2f: %s" % [score, file]
      end

      return
    end

    count = 0
    sorted = masses.sort_by { |h,m|
      [-m,
       hashes[h].first.file,
       hashes[h].first.line,
       hashes[h].first.first.to_s]
    }
    sorted.each do |hash, mass|
      nodes = hashes[hash]
      next unless nodes.first.first == prune if prune
      puts

      same = identical[hash]
      node = nodes.first
      n = nodes.size
      match, bonus = if same then
                       ["IDENTICAL", "*#{n}"]
                     else
                       ["Similar",   ""]
                     end

      if option[:number] then
        count += 1

        puts "%d) %s code found in %p (mass%s = %d)" %
         [count, match, node.first, bonus, mass]
      else
        puts "%s code found in %p (mass%s = %d)" %
         [match, node.first, bonus, mass]
      end

      nodes.sort_by { |x| [x.file, x.line] }.each_with_index do |x, i|
        if option[:diff] then
          c = (?A.ord + i).chr
          extra = " (FUZZY)" if x.modified?
          puts "  #{c}: #{x.file}:#{x.line}#{extra}"
        else
          extra = " (FUZZY)" if x.modified?
          puts "  #{x.file}:#{x.line}#{extra}"
        end
      end

      if option[:diff] then
        puts
        sources = nodes.map do |s|
          msg = "sexp_to_#{File.extname(s.file).sub(/./, '')}"
          self.respond_to?(msg) ? self.send(msg, s) : sexp_to_rb(s)
        end
        puts n_way_diff(*sources)
      end
    end
  end