simple silly daemon to set the tz based on current geoip osx only atm, but easy enough to switch up for other os's

tzgeoip.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'geoip'

# install rubygems and geoip gem 
# grab geoip db before 
#  
# wget -N -q http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz
# gunzip GeoLiteCity.dat.gz in same folder as this script
# needs to be run by root or a passwordless sudoer. (I know I know stupid stupid)


$GEOIPDB = "GeoLiteCity.dat"

# wait time of 2 hours
$INTERVAL = (60 * 60 * 2)


def get_current_tz
  begin
    current_ip = %x|curl -s whatismyip.org|
    timezone = GeoIP.new($GEOIPDB).timezone(current_ip).to_s
    return timezone
  rescue
    sleep $INTERVAL
    retry
  end
end

def set_current_tz(timezone)
  begin
    tz_results = %x|sudo systemsetup -settimezone #{timezone}|
    return true
  rescue 
    puts "debug if need to here"
    exit
  end
end

while true
  tz = get_current_tz
  set_current_tz(tz)
  sleep $INTERVAL
end

Fairly sure I could do this in a bash oneliner too if pressed, but shrug