A simple ruby script that check if a file in older or newer than another file by returning an exit status

anteriorityCheck

#!/usr/bin/env ruby
# encoding: utf-8
require 'optparse'

files = {}

optionParser = OptionParser.new do|options|

  options.banner = "Usage: anteriorityCheck [options]\nReturn 1 if specified anteriority is not met"

  options.on('-o', '--old OLD_FILE', 'mandatory : specify which file should be older than the other' ) do |oldFile|
    files[:old] = oldFile
  end

  options.on('-n', '--new OLD_FILE', 'mandatory : specify which file should be newer than the other' ) do |newFile|
    files[:new] = newFile
  end

  options.on_tail( '-h', '--help', 'Display this screen' ) do
    puts options
    exit
  end
end

optionParser.parse!

raise OptionParser::MissingArgument if files[:old].nil?
raise OptionParser::MissingArgument if files[:new].nil?

exit 1 if File.mtime(files[:old]) > File.mtime(files[:new])