#!/usr/bin/env ruby
#
#  USAGE::
#
#    script/makexml
#
#  DESCRIPTION::
#
#  Puts the contents of name/eol into a file called eol.xml
#
################################################################################

require 'tempfile'

URL = "http://mushroomobserver.org/name/eol"
# URL = "http://localhost:3000/name/eol"

def get_content(filename)
  cmd = "wget -q -O #{filename} '#{URL}'"
  system cmd
end

def get_size(filename)
  if File.exists?(filename)
    File::Stat.new(filename).size
  end
end

get_content('/dev/null')

temp_file = Tempfile.new('eol')
temp_filename = temp_file.path
dest_filename = ARGV[0]

get_content(temp_filename)

new_size = get_size(temp_filename)
old_size = get_size(dest_filename)

if new_size
  if old_size.nil? or (new_size > old_size)
    File.rename(temp_filename, dest_filename)
    File.chmod(0644, dest_filename)
  elsif new_size < old_size
    print "Size of new EOL dump, #{new_size}, was less than the old dump, #{old_size}.\n"
    print "Left the old file in place.\n"
  end
else
  print "Unable to create the new EOL dump as #{temp_filename}.\n"
end