util/cpt_upgraders/process-fdmap-rename.py

   1 # http://stackoverflow.com/questions/15069127/python-configparser-module-\
   2 # rename-a-section
   3 def rename_section(cp, section_from, section_to):
   4     items = cp.items(section_from)
   5     cp.add_section(section_to)
   6     for item in items:
   7         cp.set(section_to, item[0], item[1])
   8     cp.remove_section(section_from)
   9
  10 # Checkpoint version F renames an internal member of Process class.
  11 def upgrader(cpt):
  12     import re
  13     for sec in cpt.sections():
  14         fdm = 'FdMap'
  15         fde = 'FDEntry'
  16         if re.match('.*\.%s.*' % fdm, sec):
  17             rename = re.sub(fdm, fde, sec)
  18             split = re.split(fde, rename)
  19
  20             # rename the section and add the 'mode' field
  21             rename_section(cpt, sec, rename)
  22             cpt.set(rename, 'mode', "0") # no proper value to set :(
  23
  24             # add in entries 257 to 1023
  25             if split[1] == "0":
  26                 for x in range(257, 1024):
  27                     seq = (split[0], fde, "%s" % x)
  28                     section = "".join(seq)
  29                     cpt.add_section(section)
  30                     cpt.set(section, 'fd', '-1')
  31
  32 legacy_version = 15