Utility to check free disk space from cron

diff --git a/scripts/checkspace.py b/scripts/checkspace.py
new file mode 100755 (executable)
index 0000000..b59f63b
--- /dev/null
+++ b/scripts/checkspace.py
@@ -0,0 +1,43 @@
+#!/usr/bin/python
+
+from __future__ import division
+
+import os
+import sys
+
+def pp_size(size):
+       suffixes = ["", "KiB", "MiB", "GiB"]
+       for i, suffix in enumerate(suffixes):
+               if size < 1024:
+                       break
+               size /= 1024
+       return "%.2f %s" % (size, suffix)
+
+
+def check_path(path):
+       stat = os.statvfs(path)
+       total = stat.f_bsize * stat.f_blocks
+       free = stat.f_bsize * stat.f_bavail
+       warn = False
+
+       if total < 5*1024*1024*1024:
+               if free < total * 0.05:
+                       warn = True
+       elif free < 2*1024*1024*1024:
+               warn = True
+
+       if warn:
+               print "WARNING! %s has only %s remaining" % (path, pp_size(free))
+
+
+def main():
+       paths = sys.argv[1:]
+       if not paths:
+               print >>sys.stderr, "Usage: %s path" % sys.argv[0]
+               sys.exit(1)
+       for path in paths:
+               check_path(path)
+
+if __name__ == "__main__":
+       main()
+