59 lines
1.9 KiB
Python
59 lines
1.9 KiB
Python
# Copyright (C) 2018 Intel Corporation.
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# SPDX-License-Identifier: BSD-3-Clause
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# This script takes a Kconfig and a defconfig file, and expands it to a .config
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# with all default values listed explicitly.
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import sys
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import os
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# Kconfiglib: Copyright (c) 2011-2018, Ulf Magnusson
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# SPDX-License-Identifier: ISC
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# Refer to scripts/kconfig/LICENSE.kconfiglib for the permission notice.
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import kconfiglib
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def usage():
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sys.stdout.write("%s: <Kconfig file> <path to .config>\n" % sys.argv[0])
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def main():
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if len(sys.argv) < 3:
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usage()
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sys.exit(1)
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target_board = os.environ['BOARD']
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target_scenario = os.environ['SCENARIO']
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kconfig_path = sys.argv[1]
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if not os.path.isfile(kconfig_path):
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sys.stderr.write("Cannot find file %s\n" % kconfig_path)
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sys.exit(1)
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kconfig = kconfiglib.Kconfig(kconfig_path)
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defconfig_path = kconfig.defconfig_filename
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if not defconfig_path or not os.path.isfile(defconfig_path):
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sys.stderr.write("No defconfig found for BOARD %s on SCENARIO %s.\n" % (target_board, target_scenario))
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sys.exit(1)
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kconfig.load_config(defconfig_path)
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config_path = sys.argv[2]
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if os.path.isfile(config_path):
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# No need to change .config if it is already equivalent to the specified
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# default.
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kconfig_current = kconfiglib.Kconfig(kconfig_path)
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kconfig_current.load_config(config_path)
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same_config = True
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for sym in kconfig_current.syms:
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if kconfig_current.syms[sym].str_value != kconfig.syms[sym].str_value:
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same_config = False
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break
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if same_config:
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sys.exit(0)
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sys.stdout.write("Default configuration based on %s.\n" % defconfig_path)
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kconfig.write_config(config_path)
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sys.stdout.write("Configuration written to %s.\n" % config_path)
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if __name__ == "__main__":
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main()
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