munin_codemetric_linecount.rb

#!/usr/bin/env ruby

ROOT = '...'

EXTENSIONS = %w{html rb erb js css}

ignore = File.read(ROOT + '/.gitignore').split("\n").map {|a| "-not -path '#{a}'"}.join(' ')

if ARGV[0] == 'config'
  puts "graph_title Code Metric - Line Count"
  puts "graph_vlabel lines of code"
  puts "graph_period line"
  puts "graph_category codemetric"
  puts "graph_info Lines of code per extension"
  
  EXTENSIONS.each do |extension|
    puts <<-EOF
#{extension}.label #{extension.upcase} loc
#{extension}.type GAUGE
#{extension}.min 0
    EOF
  end
else
  EXTENSIONS.each do |extension|
    total = `cd #{ROOT}; find app lib public -mount -type f -name '*.#{extension}' #{ignore} | xargs wc -l | tail -1`
    puts "#{extension}.value #{total.to_i}"
  end
end