t/cleanup-mounts-under

   1 #!/usr/bin/env python
   2
   3 import os.path, re, subprocess, sys
   4
   5 def mntent_unescape(x):
   6     def replacement(m):
   7         unescapes = {
   8             "\\\\" : "\\",
   9             "\\011" : "\t",
  10             "\\012" : "\n",
  11             "\\040" : " "
  12         }
  13         return unescapes.get(m.group(0))
  14     return re.sub(r'(\\\\|\\011|\\012|\\040)', replacement, x)
  15
  16 targets = sys.argv[1:]
  17 exit_status = 0
  18 for target in targets:
  19     if not os.path.isdir(target):
  20         print >> sys.stderr, target, 'is not a directory!'
  21         exit_status = 1
  22         continue
  23
  24     top = os.path.realpath(target)
  25     try:
  26         proc_mounts = open('/proc/mounts', 'r')
  27     except IOError:
  28         print >> sys.stdout, 'Cannot open /proc/mounts!'
  29         sys.exit(1)
  30
  31     for line in proc_mounts:
  32         _, point, fstype, _ = line.split(' ', 3)
  33         point = mntent_unescape(point)
  34         if top == point or os.path.commonprefix((top + '/', point)) == top + '/':
  35             if fstype.startswith('fuse'):
  36                 if subprocess.call(['fusermount', '-uz', point]) != 0:
  37                     exit_status = 1
  38             else:
  39                 if subprocess.call(['umount', '-l', point]) != 0:
  40                     exit_status = 1
  41
  42 sys.exit(exit_status)