a mon plugin to monitor count of matching files by name

file_glob.monitor.py

#!/usr/bin/env python

import glob
import optparse
import os
import re
import sys
import time

def main(args):
  opt_parser = optparse.OptionParser("usage %prog [OPTIONS]", add_help_option=False)
  opt_parser.add_option(
      '-p',
      '--pattern',
      type='string',
      dest='pattern',
      help='pattern',
      default='*',
  )
  opt_parser.add_option( # --equals
      '--equals',
      type='int',
      dest='eq',
  )
  opt_parser.add_option( # --not-equals
      '--not-equals',
      type='int',
      dest='ne',
  )
  opt_parser.add_option( # --less-than
      '--less-than',
      type='int',
      dest='lt',
  )
  opt_parser.add_option( # --greater-than
      '--greater-than',
      type='int',
      dest='gt',
  )

  opt_parser.add_option( # --less-or-equals
      '--less-or-equals',
      type='int',
      dest='le',
  )
  opt_parser.add_option( # --greater-or-equals
      '--greater-or-equals',
      type='int',
      dest='ge',
  )

  options, args = opt_parser.parse_args(args)
  c = len(glob.glob(options.pattern))

  if options.ne is not None:
    x = options.ne
    ok = c != x
  elif options.eq is not None:
    x = options.eq
    ok = c == x
  elif options.le is not None:
    x = options.le
    ok = c <= x
  elif options.ge is not None:
    x = options.ge
    ok = c >= x
  elif options.lt is not None:
    x = options.lt
    ok = c < x
  elif options.gt is not None:
    x = options.gt
    ok = c > x

  if not ok:
    print >> sys.stderr, "got %d for %d" % (c, x)

  sys.exit(0 if ok else 1)

if __name__ == "__main__":
  main(sys.argv)

# vim:set ft=python :