#!/usr/bin/env ruby
#
# buildnumber.rb 1.0 // Nick Brawn
 
require 'rubygems'
require 'git'
require 'optparse'
require 'yaml'
 
opts = OptionParser.new
options = {}
config = {}
 
opts.on("-b ARG","--build=ARG", String) do |v|
  options[:build] = v
end
 
opts.on("-d ARG","--dir=ARG", String) do |v|
  options[:dir] = v
end
 
rest = opts.parse(ARGV)
 
g = Git.open(working_dir = options[:dir])
gitdb = "#{options[:dir]}/.gitbuild.yaml"
if File.exist?(gitdb)
  config = YAML.load_file(gitdb)
else
  config["builds"] = []
end
 
if options[:build]
  print "#{config["builds"][options[:build].to_i]} \n"
else
  len = config["builds"].length
  config["builds"][len] = g.log(1).to_s
  print "#{len} #{g.log(1).to_s}\n"
end
 
File.open(gitdb, "w") {|f| YAML.dump(config, f)}