kernel/scripts/configdiff.py

   1 #!/usr/bin/python
   2 ###############################################################################
   3 # IPFire.org    - An Open Source Firewall Solution                            #
   4 # Copyright (C) - IPFire Development Team <info@ipfire.org>                   #
   5 ###############################################################################
   6
   7 import re
   8 import sys
   9
  10 filelist = sys.argv[1:]
  11
  12 options = []
  13
  14 f = open(filelist[0])
  15 for line in f.readlines():
  16         # Strip newline.
  17         line = line.rstrip()
  18
  19         option = value = None
  20
  21         m = re.match("^# (.*) is not set$", line)
  22         if m:
  23                 option = m.group(1)
  24                 value  = "n"
  25
  26         m = re.match("^(.*)=(.*)$", line)
  27         if m:
  28                 option = m.group(1)
  29                 value  = m.group(2)
  30
  31         if option:
  32                 option_value = "%s=%s" % (option, value or "")
  33                 options.append(option_value)
  34
  35 f.close()
  36
  37 f = open(filelist[1])
  38
  39 section = None
  40 for line in f.readlines():
  41         m = re.match("^# (.*)$", line)
  42         if m:
  43                 _section = m.group(1)
  44                 if not _section.startswith("CONFIG_") and \
  45                                 not _section.endswith("Kernel Configuration") and \
  46                                 not _section.startswith("Automatically generated file;"):
  47                         section = _section
  48
  49         option = None
  50         value  = None
  51
  52         m = re.match("^# (.*) is not set$", line)
  53         if m:
  54                 option = m.group(1)
  55                 value  = "n"
  56
  57         m = re.match("^(.*)=(.*)$", line)
  58         if m:
  59                 option = m.group(1)
  60                 value  = m.group(2)
  61
  62         if not option:
  63                 continue
  64
  65         # Ignore all options CONFIG_HAVE_ because we cannot
  66         # set them anyway.
  67         elif option.startswith("CONFIG_HAVE_"):
  68                 continue
  69
  70         option_value = "%s=%s" % (option, value)
  71         if not option_value in options:
  72                 if section:
  73                         print
  74                         print "#"
  75                         print "# %s" % section
  76                         print "#"
  77                         section = None
  78
  79                 if value == "n":
  80                         print "# %s is not set" % option
  81                 else:
  82                         print "%s=%s" % (option, value)
  83
  84 f.close()