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|
#!/usr/bin/ruby -rubygems
#
# Usage information at the end of the script.
#
require 'getoptlong'
require 'custodian/settings'
require 'custodian/queue'
#
# Entry-point to our code.
#
if __FILE__ == $PROGRAM_NAME
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
monitor = if arg
arg.to_i
else
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
#
# Show the help information.
#
if manual || help
DATA.read.split("\n").each do |line|
puts Regexp.last_match(1).dup if line =~ /^# ?(.*)/
end
exit 0
end
#
# Create the queue object.
#
queue = Custodian::RedisQueueType.new
#
# Alerting on a queue that is too-full?
#
unless 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?
#
queue.flush! if flush
end
__END__
# 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 given threshold
# then 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 global queue, and also allows that
# queue to be flushed of all pending-jobs.
#
# AUTHOR
#
# Steve Kemp <steve@bytemark.co.uk>
#
|
