kernel: Update to Linux 3.2.

[people/arne_f/ipfire-3.x.git] / kernel / scripts / configdiff.py

diff --git a/kernel/scripts/configdiff.py b/kernel/scripts/configdiff.py
new file mode 100755 (executable)
index 0000000..612e9bf
--- /dev/null
+++ b/kernel/scripts/configdiff.py
@@ -0,0 +1,84 @@
+#!/usr/bin/python
+###############################################################################
+# IPFire.org    - An Open Source Firewall Solution                            #
+# Copyright (C) - IPFire Development Team <info@ipfire.org>                   #
+###############################################################################
+
+import re
+import sys
+
+filelist = sys.argv[1:]
+
+options = []
+
+f = open(filelist[0])
+for line in f.readlines():
+       # Strip newline.
+       line = line.rstrip()
+
+       option = value = None
+
+       m = re.match("^# (.*) is not set$", line)
+       if m:
+               option = m.group(1)
+               value  = "n"
+
+       m = re.match("^(.*)=(.*)$", line)
+       if m:
+               option = m.group(1)
+               value  = m.group(2)
+
+       if option:
+               option_value = "%s=%s" % (option, value or "")
+               options.append(option_value)
+
+f.close()
+
+f = open(filelist[1])
+
+section = None
+for line in f.readlines():
+       m = re.match("^# (.*)$", line)
+       if m:
+               _section = m.group(1)
+               if not _section.startswith("CONFIG_") and \
+                               not _section.endswith("Kernel Configuration") and \
+                               not _section.startswith("Automatically generated file;"):
+                       section = _section
+
+       option = None
+       value  = None
+
+       m = re.match("^# (.*) is not set$", line)
+       if m:
+               option = m.group(1)
+               value  = "n"
+
+       m = re.match("^(.*)=(.*)$", line)
+       if m:
+               option = m.group(1)
+               value  = m.group(2)
+
+       if not option:
+               continue
+
+       # Ignore all options CONFIG_HAVE_ because we cannot
+       # set them anyway.
+       elif option.startswith("CONFIG_HAVE_"):
+               continue
+
+       option_value = "%s=%s" % (option, value)
+       if not option_value in options:
+               if section:
+                       print
+                       print "#"
+                       print "# %s" % section
+                       print "#"
+                       section = None
+
+               if value == "n":
+                       print "# %s is not set" % option
+               else:
+                       print "%s=%s" % (option, value)
+
+f.close()