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("^# (.*)$", line)
  42         if m:
  43                 _section = m.group(1)
  44                 if not _section.startswith("CONFIG_") and \
  45                                 not _section.endswith("Kernel Configuration") and \
  46                                 not _section.startswith("Automatically generated file;"):
  47                         section = _section
  48         elif not line:
  49                 section = None
  50
  51         option = None
  52         value  = None
  53
  54         m = re.match("^# (.*) is not set$", line)
  55         if m:
  56                 option = m.group(1)
  57                 value  = "n"
  58
  59         m = re.match("^(.*)=(.*)$", line)
  60         if m:
  61                 option = m.group(1)
  62                 value  = m.group(2)
  63
  64         if not option:
  65                 continue
  66
  67         # Ignore all options CONFIG_HAVE_ because we cannot
  68         # set them anyway.
  69         elif option.startswith("CONFIG_HAVE_"):
  70                 continue
  71
  72         option_value = "%s=%s" % (option, value)
  73         if not option_value in options:
  74                 if section:
  75                         print
  76                         print "#"
  77                         print "# %s" % section
  78                         print "#"
  79                         section = None
  80
  81                 if value == "n":
  82                         print "# %s is not set" % option
  83                 else:
  84                         print "%s=%s" % (option, value)
  85
  86 f.close()