#!/usr/bin/env ruby

def output_config
  puts <<-END
graph_category passenger
graph_title Passenger queues
graph_vlabel count

global.label global
END
  exit 0
end

def output_values
  status = `/usr/sbin/passenger-status`
  unless $?.success?
    $stderr.puts "failed executing passenger-status"
    exit 1
  end
  status =~ /Waiting on global queue:\s+(\d+)/
  puts "global.value #{$1}"
end

if ARGV[0] == "config"
  output_config
else
  output_values
end