module Hoe::History

def define_history_tasks # :nodoc:
  # do nothing
end

def flog_flay
  flog = `flog -s -c $(cat Manifest.txt | grep -v txt$) 2>/dev/null`
  flay = `flay -s    $(cat Manifest.txt | grep -v txt$) 2>/dev/null`
  flog_total = flog[/([\d\.]+): flog total/, 1].to_f
  flog_avg   = flog[/([\d\.]+): flog\/method average/, 1].to_f
  flay_total = flay[/Total score .lower is better. = (\d+)/, 1].to_i
  return flog_total, flog_avg, flay_total
end

def history versions
  history = load_history
  history.delete "dev" # FIX: this is p4 specific - make a variable?
  flog_total = flog_avg = flay_total = nil
  puts "version\tflog\tavg\tflay"
  versions.each do |version|
    history[version] = yield(version) unless history[version]
    flog_total, flog_avg, flay_total = history[version]
    puts "%s\t%.1f\t%.1f\t%d" % [version, flog_total, flog_avg, flay_total]
  end
ensure
  save_history history
end

def load_history
  require "yaml"
  YAML.load_file(".history.yaml") rescue {}
end

def save_history data
  require "yaml"
  File.open ".history.yaml", "w" do |f|
    YAML.dump data, f
  end
end