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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
import time
import optparse
from rq import use_redis, Queue
from rq.utils import gettermsize, colorize
def get_scale(x):
"""Finds the lowest scale where x <= scale."""
scales = [20, 50, 100, 200, 400, 600, 800, 1000]
for scale in scales:
if x <= scale:
return scale
return x
def parse_args():
parser = optparse.OptionParser()
parser.add_option('-q', '--queues', dest='subcmd',
action='store_const', const='queues',
help='Shows stats for queues.')
parser.add_option('-w', '--workers', dest='subcmd',
action='store_const', const='workers',
help='Shows stats for workers.')
parser.add_option('-n', '--interval', dest='interval',
type='float',
help='The interval between polls, in seconds. Does not poll if 0.')
parser.add_option('-g', '--graph', dest='graph',
action='store_true', default=False,
help='Shows bar chart graphs where possible.')
opts, args = parser.parse_args()
return (opts, args, parser)
def show_queues(opts, args, parser):
while True:
if len(args):
qs = map(Queue, args)
else:
qs = Queue.all()
num_jobs = 0
termwidth, _ = gettermsize()
chartwidth = min(20, termwidth - 20)
max_count = 0
counts = dict()
for q in qs:
count = q.count
counts[q] = count
max_count = max(max_count, count)
scale = get_scale(max_count)
ratio = chartwidth * 1.0 / scale
if opts.interval:
os.system('clear')
print('scale = %d' % scale)
for q in qs:
count = counts[q]
if opts.graph:
chart = colorize('darkgreen', '|' + '█' * int(ratio * count))
line = '%-12s %s %d' % (q.name, chart, count)
else:
line = '%-12s %d' % (q.name, count)
print(line)
num_jobs += count
print('%d queues, %d jobs total' % (len(qs), num_jobs))
if opts.interval:
time.sleep(opts.interval)
else:
break
def show_workers(opts, args, parser):
raise NotImplementedError()
def main():
opts, args, parser = parse_args()
if not opts.subcmd:
parser.error('Specify either --queues or --workers.')
use_redis()
if opts.subcmd == 'workers':
show_workers(opts, args, parser)
elif opts.subcmd == 'queues':
show_queues(opts, args, parser)
if __name__ == '__main__':
main()