25 lines
643 B
Python
25 lines
643 B
Python
# Evaluates an expression (e.g. "X86_64 || (X86_32 && X86_LOCAL_APIC)") in the
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# context of a configuration. Note that this always yields a tristate value (n,
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# m, or y).
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#
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# Usage:
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#
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# $ make [ARCH=<arch>] scriptconfig SCRIPT=Kconfiglib/examples/eval_expr.py SCRIPT_ARG=<expr>
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import sys
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import kconfiglib
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if len(sys.argv) < 3:
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sys.exit("Pass the expression to evaluate with SCRIPT_ARG=<expression>")
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kconf = kconfiglib.Kconfig(sys.argv[1])
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expr = sys.argv[2]
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# Enable modules so that m doesn't get demoted to n
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kconf.modules.set_value(2)
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print("the expression '{}' evaluates to {}"
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.format(expr, kconf.eval_string(expr)))
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