Munin contributed plugins

#!/usr/bin/env python

"""

munin US NOAA weather plugin (http://tgftp.nws.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://tgftp.nws.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://tgftp.nws.noaa.gov/data/observations/metar/decoded/%s.TXT'

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

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

if not code:

    sys.exit(1)

elif 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 sensors')

    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)