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#!/usr/bin/env python
import os
import re
import sys
allconfigs = {}
# Parse config files
for config in os.listdir("."):
# Only config.*
if not config.startswith("config."):
continue
# Ignore emacs backups
if config.endswith("~"):
continue
# Nothing that is disabled, or remnant
if re.search("\.(default|disabled|stub)$", config):
continue
allconfigs[config] = set()
for line in open(config):
m = re.match("#*\s*CONFIG_(\w+)[\s=](.*)$", line)
if not m:
continue
option, value = m.groups()
allconfigs[config].add((option, value))
# Split out common config options
common = allconfigs.values()[0].copy()
for config in allconfigs.keys():
common &= allconfigs[config]
for config in allconfigs.keys():
allconfigs[config] -= common
allconfigs["config.common"] = common
# Generate new splitconfigs
for config in allconfigs.keys():
f = open(config, "w")
command = os.path.basename(sys.argv[0])
print >>f, "#\n# Config options generated by %s\n#" % command
for option, value in sorted(list(allconfigs[config])):
if value == "is not set":
print >>f, "# CONFIG_%s %s" % (option, value)
else:
print >>f, "CONFIG_%s=%s" % (option, value)
f.close()
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