alert_me

#!/usr/bin/env ruby

##
# alert_me
#
# A simple delay timer to send a growl notification at specific time with a
# message.  Useful for when you need to check on something later
#
#   echo "Go look at system 42" | alert_me in 2 hours
#
##

require 'rubygems'
require 'ruby-growl'
require 'chronic'
require 'daemons'

default_alert = Chronic.parse( "in 10 secods" )
alert_time    = Chronic.parse( ARGV.join(" ") ) || default_alert
if alert_time < Time.now then
  STDERR.puts "Unable to do an alert in the past"
  exit 1
end

delay        = alert_time - Time.now
message      = STDIN.read

if message.size == 0 then
  STDERR.puts "You need a message"
  exit 1
end

app_name     = File.basename( __FILE__ )
hostname     = "localhost"
password     = nil 
sticky       = true
priority     = 1 
notify_type  = "Alert Me Notification"
title        = "Alert Me Notification"

Daemons.daemonize

$0 = "alert at #{alert_time.strftime("%Y-%m-%d %H:%M:%S")}"
sleep delay

g = Growl.new( hostname, app_name, [notify_type], [notify_type], password )
g.notify( notify_type, title, message, priority, sticky )

exit 0