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#!/usr/bin/ruby -Ilib/ -I../lib/ -rubygems
#
# NAME
# custodian-queue - Work with the queue.
#
# SYNOPSIS
# custodian-queue [ -h | --help ]
# [ -m | --manual ]
# [ -M | --monitor ]
# [ -f | --flush ]
# [ -s | --stats ]
#
# OPTIONS
#
# -h, --help Show a help message, and exit.
#
# -m, --manual Show this manual, and exit.
#
# -M, --monitor If the queue size exceeds the threshold report that via an exit code.
#
# -f, --flush Flush the queue, removing all jobs.
#
# -s, --stats Show the count of pending jobs.
#
#
# ABOUT
#
# This tool is designed to inspect the beanstalkd queue, or flush the pending
# jobs from it.
#
#
# AUTHOR
#
# Steve Kemp <steve@bytemark.co.uk>
#
#
# Standard modules
#
require 'getoptlong'
#
# Our code
#
require 'custodian/settings'
require 'custodian/queue'
#
# Entry-point to our code.
#
if __FILE__ == $PROGRAM_NAME then
$FLUSH = false
$STATS = false
$help = false
$manual = false
$MONITOR = nil
begin
opts = GetoptLong.new(
['--flush', '-f', GetoptLong::NO_ARGUMENT],
['--help', '-h', GetoptLong::NO_ARGUMENT],
['--manual', '-m', GetoptLong::NO_ARGUMENT],
['--monitor', '-M', GetoptLong::OPTIONAL_ARGUMENT],
['--stats', '-s', GetoptLong::NO_ARGUMENT]
)
opts.each do |opt, arg|
case opt
when '--monitor' then
if arg
$MONITOR = arg.to_i
else
$MONITOR = 5000
end
when '--stats' then
$STATS = true
when '--flush' then
$FLUSH = true
when '--help' then
$help = true
when '--manual' then
$manual = true
end
end
rescue StandardError => ex
puts "Option parsing failed: #{ex}"
exit
end
#
# CAUTION! Here be quality kode.
#
if $manual or $help
# Open the file, stripping the shebang line
lines = File.open(__FILE__){|fh| fh.readlines}[1..-1]
found_synopsis = false
lines.each do |line|
line.chomp!
break if line.empty?
if $help and !found_synopsis
found_synopsis = (line =~ /^#\s+SYNOPSIS\s*$/)
next
end
puts line[2..-1].to_s
break if $help and found_synopsis and line =~ /^#\s*$/
end
exit 0
end
#
# Create the queue object.
#
settings = Custodian::Settings.instance
queue = Custodian::QueueType.create(settings.queue_type)
#
# Alerting on a queue that is too-full?
#
if !$MONITOR.nil?
#
# Find the number of jobs
#
jobs = queue.size?
if jobs > $MONITOR
exit 1
else
exit 0
end
end
#
# Showing stats?
#
if $STATS
jobs = queue.size?
puts "There are #{jobs || 0} jobs pending."
exit(0)
end
#
# Are we flushing the queue?
#
if $FLUSH
queue.flush!
end
end
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