tools/bootconfig/scripts/xbc.sh

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0-only
   3
   4 # bootconfig utility functions
   5
   6 XBC_TMPFILE=
   7 XBC_BASEDIR=`dirname $0`
   8 BOOTCONFIG=${BOOTCONFIG:=$XBC_BASEDIR/../bootconfig}
   9 if [ ! -x "$BOOTCONFIG" ]; then
  10         BOOTCONFIG=`which bootconfig`
  11         if [ -z "$BOOTCONFIG" ]; then
  12                 echo "Erorr: bootconfig command is not found" 1>&2
  13                 exit 1
  14         fi
  15 fi
  16
  17 xbc_cleanup() {
  18         if [ "$XBC_TMPFILE" ]; then
  19                 rm -f "$XBC_TMPFILE"
  20         fi
  21 }
  22
  23 xbc_init() { # bootconfig-file
  24         xbc_cleanup
  25         XBC_TMPFILE=`mktemp bconf-XXXX`
  26         trap xbc_cleanup EXIT TERM
  27
  28         $BOOTCONFIG -l $1 > $XBC_TMPFILE || exit 1
  29 }
  30
  31 nr_args() { # args
  32         echo $#
  33 }
  34
  35 xbc_get_val() { # key [maxnum]
  36         if [ "$2" ]; then
  37                 MAXOPT="-L $2"
  38         fi
  39         grep "^$1 =" $XBC_TMPFILE | cut -d= -f2- | \
  40                 sed -e 's/", /" /g' -e "s/',/' /g" | \
  41                 xargs $MAXOPT -n 1 echo
  42 }
  43
  44 xbc_has_key() { # key
  45         grep -q "^$1 =" $XBC_TMPFILE
  46 }
  47
  48 xbc_has_branch() { # prefix-key
  49         grep -q "^$1" $XBC_TMPFILE
  50 }
  51
  52 xbc_subkeys() { # prefix-key depth
  53         __keys=`echo $1 | sed "s/\./ /g"`
  54         __s=`nr_args $__keys`
  55         grep "^$1" $XBC_TMPFILE | cut -d= -f1| cut -d. -f$((__s + 1))-$((__s + $2)) | uniq
  56 }