Munin contributed plugins

#!/usr/local/bin/python

"""

munin US NOAA weather plugin (http://weather.noaa.gov)

Draws pressure in hPa.

Copy/link file as 'weather_pressure_CODE', like: weather_pressure_LOWW for Austria, Vienna.

Get the code by going to http://weather.noaa.gov, selecting your

location, and copying the code from the address bar of your browser; should

be something like CODE.html.

Linux users might need to adjust the shebang.

"""

import sys

import urllib

import re

url = 'http://weather.noaa.gov/pub/data/observations/metar/decoded/%s.TXT'

re_hPa = re.compile('Pressure.*\((\d+) hPa\)')

code = sys.argv[0][(sys.argv[0].rfind('_')+1):]

if code == None: sys.exit(1)

if len(sys.argv) == 2 and sys.argv[1] == "autoconf":

  print "yes"

elif len(sys.argv) == 2 and sys.argv[1] == "config":

  print 'graph_title Atmospheric pressure at code %s' % code

  print 'graph_vlabel Pressure in hPa'

  print 'graph_category Weather'

  print 'pressure.label Pressure'

  print 'pressure.type GAUGE'

  print 'graph_args --base 1000 -l 850 -u 1050 --rigid'

  print 'graph_scale no'

else:

  u = urllib.urlopen(url % code)

  txt = u.read()

  u.close()

  hPa = re_hPa.findall(txt)[0]

  print 'pressure.value %s' % hPa