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#!/usr/bin/env python3
# Copyright (c) 2019, Ulf Magnusson
# SPDX-License-Identifier: ISC
"""
Reads a specified configuration file, then writes a new configuration file.
This can be used to initialize the configuration from e.g. an arch-specific
configuration file. This input configuration file would usually be a minimal
configuration file, as generated by e.g. savedefconfig.
The default output filename is '.config'. A different filename can be passed in
the KCONFIG_CONFIG environment variable.
"""
import argparse
import kconfiglib
def main():
parser = argparse.ArgumentParser(
formatter_class=argparse.RawDescriptionHelpFormatter,
description=__doc__)
parser.add_argument(
"--kconfig",
default="Kconfig",
help="Top-level Kconfig file (default: Kconfig)")
parser.add_argument(
"config",
metavar="CONFIGURATION",
help="Input configuration file")
args = parser.parse_args()
kconf = kconfiglib.Kconfig(args.kconfig, suppress_traceback=True)
print(kconf.load_config(args.config))
print(kconf.write_config())
if __name__ == "__main__":
main()
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