#!/usr/bin/ruby

LOCALE_DIR = "/usr/share/locale/ja/"

LC_MESSAGES = LOCALE_DIR + "LC_MESSAGES/"

def mo2po files
  files.each do |name|
    puts name
    system "msgunfmt #{LC_MESSAGES + name}.mo -o #{name}.po"
  end
end

def po2mo files
  files.each do |name|
    puts name
    system "msgfmt -c --statistics #{name}.po -o #{LC_MESSAGES + name}.mo"
  end
end

def filelist ext
  files = if(ARGV.size == 1)
    `#{"ls -1 *.#{ext}"}`.split(/\n/)
  else
    ARGV[1, ARGV.size - 1]
  end
  files.map { |file| file[0, file.size-3] }
end

case ARGV[0]
when 'mo2po'
  mo2po filelist("mo")
when 'po2mo'
  po2mo filelist("po")
else
  puts 'no such a command.'
end