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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0-only
# bootconfig utility functions
XBC_TMPFILE=
XBC_BASEDIR=`dirname $0`
BOOTCONFIG=${BOOTCONFIG:=$XBC_BASEDIR/../bootconfig}
if [ ! -x "$BOOTCONFIG" ]; then
BOOTCONFIG=`which bootconfig`
if [ -z "$BOOTCONFIG" ]; then
echo "Erorr: bootconfig command is not found" 1>&2
exit 1
fi
fi
xbc_cleanup() {
if [ "$XBC_TMPFILE" ]; then
rm -f "$XBC_TMPFILE"
fi
}
xbc_init() { # bootconfig-file
xbc_cleanup
XBC_TMPFILE=`mktemp bconf-XXXX`
trap xbc_cleanup EXIT TERM
$BOOTCONFIG -l $1 > $XBC_TMPFILE || exit 1
}
nr_args() { # args
echo $#
}
xbc_get_val() { # key [maxnum]
if [ "$2" ]; then
MAXOPT="-L $2"
fi
grep "^$1 =" $XBC_TMPFILE | cut -d= -f2- | \
sed -e 's/", /" /g' -e "s/',/' /g" | \
xargs $MAXOPT -n 1 echo
}
xbc_has_key() { # key
grep -q "^$1 =" $XBC_TMPFILE
}
xbc_has_branch() { # prefix-key
grep -q "^$1" $XBC_TMPFILE
}
xbc_subkeys() { # prefix-key depth [subkey-pattern]
__keys=`echo $1 | sed "s/\./ /g"`
__s=`nr_args $__keys`
grep "^$1$3" $XBC_TMPFILE | cut -d= -f1| cut -d. -f$((__s + 1))-$((__s + $2)) | uniq
}