Modification of the diffconfig script to support python versions 2.6 and
greater. Added a small change to gracefully exit if the default config files
are not present. (.config and .config.old)
Note that Linux distributions are starting to deprecate python versions < 2.5
Diffconfig is a utility script for comparing kernel configuration files.
Signed-off-by: Mike Pagano <mpagano@xxxxxxxxxx>
Signed-off-by: Tobias Klausmann <klausman@xxxxxxxxxx>
Signed-off-by: Ewoud Kohl van Wijngaarden <ewoud@xxxxxxxxxxxxxxxxxxxxx>
---
scripts/diffconfig | 60 ++++++++++++++++++++++++++++++------------------------
1 file changed, 33 insertions(+), 27 deletions(-)
diff --git a/scripts/diffconfig b/scripts/diffconfig
index b91f3e3..4829594 100755
--- a/scripts/diffconfig
+++ b/scripts/diffconfig
@@ -10,7 +10,7 @@
import sys, os
def usage():
- print """Usage: diffconfig [-h] [-m] [<config1> <config2>]
+ print("""Usage: diffconfig [-h] [-m] [<config1> <config2>]
Diffconfig is a simple utility for comparing two .config files.
Using standard diff to compare .config files often includes extraneous and
@@ -33,7 +33,7 @@ Example usage:
EXT2_FS y -> n
LOG_BUF_SHIFT 14 -> 16
PRINTK_TIME n -> y
-"""
+""")
sys.exit(0)
# returns a dictionary of name/value pairs for config items in the file
@@ -54,23 +54,26 @@ def print_config(op, config, value, new_value):
if merge_style:
if new_value:
if new_value=="n":
- print "# CONFIG_%s is not set" % config
+ print("# CONFIG_%s is not set" % config)
else:
- print "CONFIG_%s=%s" % (config, new_value)
+ print("CONFIG_%s=%s" % (config, new_value))
else:
if op=="-":
- print "-%s %s" % (config, value)
+ print("-%s %s" % (config, value))
elif op=="+":
- print "+%s %s" % (config, new_value)
+ print("+%s %s" % (config, new_value))
else:
- print " %s %s -> %s" % (config, value, new_value)
+ print(" %s %s -> %s" % (config, value, new_value))
def main():
global merge_style
+ config_a = {}
+ config_b = {}
+
# parse command line args
if ("-h" in sys.argv or "--help" in sys.argv):
- usage()
+ usage()
merge_style = 0
if "-m" in sys.argv:
@@ -79,13 +82,13 @@ def main():
argc = len(sys.argv)
if not (argc==1 or argc == 3):
- print "Error: incorrect number of arguments or unrecognized option"
+ print("Error: incorrect number of arguments or unrecognized option")
usage()
if argc == 1:
# if no filenames given, assume .config and .config.old
build_dir=""
- if os.environ.has_key("KBUILD_OUTPUT"):
+ if "KBUILD_OUTPUT" in os.environ:
build_dir = os.environ["KBUILD_OUTPUT"]+"/"
configa_filename = build_dir + ".config.old"
@@ -94,36 +97,39 @@ def main():
configa_filename = sys.argv[1]
configb_filename = sys.argv[2]
- a = readconfig(file(configa_filename))
- b = readconfig(file(configb_filename))
+ try:
+ config_a = readconfig(open(configa_filename))
+ config_b = readconfig(open(configb_filename))
+ except IOError as e:
+ print("I/O error({0}): {1}\n".format(e.errno, e.strerror))
+ usage()
- # print items in a but not b (accumulate, sort and print)
+ # print items in config_a but not config_b (accumulate, sort and print)
old = []
- for config in a:
- if config not in b:
+ for config in config_a:
+ if config not in config_b:
old.append(config)
old.sort()
for config in old:
- print_config("-", config, a[config], None)
- del a[config]
+ print_config("-", config, config_a[config], None)
+ del config_a[config]
# print items that changed (accumulate, sort, and print)
changed = []
- for config in a:
- if a[config] != b[config]:
+ for config in config_a:
+ if config_a[config] != config_b[config]:
changed.append(config)
else:
- del b[config]
+ del config_b[config]
changed.sort()
for config in changed:
- print_config("->", config, a[config], b[config])
- del b[config]
+ print_config("->", config, config_a[config], config_b[config])
+ del config_b[config]
- # now print items in b but not in a
- # (items from b that were in a were removed above)
- new = b.keys()
- new.sort()
+ # now print items in config_b but not in config_a
+ # (items from config_b that were in config_a were removed above)
+ new = sorted(config_b.keys())
for config in new:
- print_config("+", config, None, b[config])
+ print_config("+", config, None, config_b[config])
main()
--
1.8.1.5
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