72 lines
2.1 KiB
Python
72 lines
2.1 KiB
Python
# Copyright (C) 2018 Intel Corporation.
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# SPDX-License-Identifier: BSD-3-Clause
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# This script
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#
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# 1. takes a Kconfig and a .config and an optional list of symbol-value pairs,
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# 2. checks whether the specified symbols have the specified values in the
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# given .config, and
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# 3. reconstruct .config with the given list of symbol-value pairs if there
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# is any disagreement.
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import sys, 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> <.config file> [<symbol1>=<value1> ...]\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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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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config_path = sys.argv[2]
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has_old_config = False
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if os.path.isfile(config_path):
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kconfig.load_config(config_path)
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has_old_config = True
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# Parse the configs specified on cmdline
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cmdline_conf = {}
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for sym_val in sys.argv[3:]:
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if sym_val.find("=") == -1:
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continue
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sym_name, val = sym_val.split("=")[:2]
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if sym_name in kconfig.syms.keys() and val:
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cmdline_conf[sym_name] = val
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# Check if the old .config conflicts with those specified on cmdline
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has_conflict = False
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for sym_name, val in cmdline_conf.items():
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sym = kconfig.syms[sym_name]
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if sym.str_value and sym.str_value != val:
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has_conflict = True
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break
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# If there's any conflict, reconfigure using those from the cmdline. The
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# default values are used for unspecified symbols.
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if not has_old_config or has_conflict:
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kconfig.unset_values()
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for sym_name, val in cmdline_conf.items():
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kconfig.syms[sym_name].set_value(val)
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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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