--- /dev/null
+#! /usr/bin/python
+
+import os, sys
+import urllib
+import simplejson
+
+configinfo = """\
+graph_title Tahoe Root Directory Size
+graph_vlabel bytes
+graph_category tahoe
+graph_info This graph shows the amount of space consumed by all files reachable from a given directory
+space.label Space
+space.draw LINE2
+"""
+
+if len(sys.argv) > 1:
+ if sys.argv[1] == "config":
+ print configinfo.rstrip()
+ sys.exit(0)
+
+url = os.environ["url"]
+
+data = int(urllib.urlopen(url).read().strip())
+print "space.value %d" % data
+
+
+