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# Works like 'make allyesconfig'. Verified by the test suite to generate output
# identical to 'make allyesconfig', for all ARCHES.
#
# This example is implemented a bit differently from allnoconfig.py to
# demonstrate some other possibilities. A variant similar to
# allnoconfig_simpler.py could be constructed too.
#
# In theory, we need to handle choices in two different modes:
#
# y: One symbol is y, the rest are n
# m: Any number of symbols are m, the rest are n
#
# Only tristate choices can be in m mode.
#
# In practice, no m mode choices appear for allyesconfig as of 4.14, as
# expected, but we still handle them here for completeness. Here's a convoluted
# example of how you might get an m-mode choice even during allyesconfig:
#
# choice
# tristate "weird choice"
# depends on m
#
# ...
#
# endchoice
#
#
# Usage:
#
# $ make [ARCH=<arch>] scriptconfig SCRIPT=Kconfiglib/examples/allyesconfig.py
from kconfiglib import Kconfig, Choice
import sys
kconf = Kconfig(sys.argv[1])
while True:
changed = False
for sym in kconf.defined_syms:
# Choices are handled separately below
if sym.choice:
continue
# Set the symbol to the highest assignable value, unless it already has
# that value. sym.assignable[-1] gives the last element in assignable.
if sym.assignable and sym.tri_value < sym.assignable[-1]:
sym.set_value(sym.assignable[-1])
changed = True
for choice in kconf.choices:
# Same logic as above for choices
if choice.assignable and choice.tri_value < choice.assignable[-1]:
choice.set_value(choice.assignable[-1])
# For y-mode choices, we just let the choice get its default
# selection. For m-mode choices, we set all choice symbols to m.
if choice.tri_value == 1:
for sym in choice.syms:
sym.set_value(1)
changed = True
# Do multiple passes until we longer manage to raise any symbols or
# choices, like in allnoconfig.py
if not changed:
break
kconf.write_config(".config")
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