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#!/usr/bin/env python3
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# Copyright (c) 2018-2019, Ulf Magnusson
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# SPDX-License-Identifier: ISC
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"""
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Lists all user-modifiable symbols that are not given a value in the
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configuration file. Usually, these are new symbols that have been added to the
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Kconfig files.
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The default configuration filename is '.config'. A different filename can be
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passed in the KCONFIG_CONFIG environment variable.
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"""
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from __future__ import print_function
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import argparse
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import sys
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from kconfiglib import Kconfig, BOOL, TRISTATE, INT, HEX, STRING, TRI_TO_STR
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def main():
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parser = argparse.ArgumentParser(
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formatter_class=argparse.RawDescriptionHelpFormatter,
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description=__doc__)
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parser.add_argument(
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"--show-help", "-l",
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action="store_true",
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help="Show any help texts as well")
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parser.add_argument(
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"kconfig",
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metavar="KCONFIG",
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nargs="?",
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default="Kconfig",
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help="Top-level Kconfig file (default: Kconfig)")
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args = parser.parse_args()
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kconf = Kconfig(args.kconfig, suppress_traceback=True)
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# Make it possible to filter this message out
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print(kconf.load_config(), file=sys.stderr)
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for sym in kconf.unique_defined_syms:
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# Only show symbols that can be toggled. Choice symbols are a special
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# case in that sym.assignable will be (2,) (length 1) for visible
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# symbols in choices in y mode, but they can still be toggled by
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# selecting some other symbol.
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if sym.user_value is None and \
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(len(sym.assignable) > 1 or
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(sym.visibility and (sym.orig_type in (INT, HEX, STRING) or
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sym.choice))):
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# Don't reuse the 'config_string' format for bool/tristate symbols,
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# to show n-valued symbols as 'CONFIG_FOO=n' instead of
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# '# CONFIG_FOO is not set'. This matches the C tools.
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if sym.orig_type in (BOOL, TRISTATE):
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s = "{}{}={}\n".format(kconf.config_prefix, sym.name,
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TRI_TO_STR[sym.tri_value])
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else:
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s = sym.config_string
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print(s, end="")
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if args.show_help:
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for node in sym.nodes:
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if node.help is not None:
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# Indent by two spaces. textwrap.indent() is not
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# available in Python 2 (it's 3.3+).
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print("\n".join(" " + line
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for line in node.help.split("\n")))
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break
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if __name__ == "__main__":
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main()
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