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#!/bin/bash
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SRC=($(ls config-* 2>/dev/null))
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TGT=($(ls kernel-*/linux-*.noarch/configs/kernel-2.6.*-*.config \
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kernel-*/linux-*.noarch/configs/kernel-2.6.*-*-debug.config 2>/dev/null))
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TGT1=(${TGT[*]#kernel-*/linux-*.noarch/configs/kernel-2.6.*-})
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if [ $# -lt 2 ] ; then
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echo -e "Usage:\n $(basename $0) [-dfcn] input target\n"
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echo -e " Sort input config file into the same order as the target\n"
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echo -e " -d: show raw unsorted output with extra debug text"
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echo -e " -f: force output to match what is in the target config"
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echo -e " -c: insert comments about non-matching items"
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echo -e " -n: do not sort output\n"
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echo -e " input: source config file" ' [' "${SRC[*]#config-}" ']\n'
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echo -e " target: output arch name" ' [' "${TGT1[*]%.config}" ']\n'
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exit 1
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fi
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while getopts "dfcn" OPTION ; do
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case $OPTION in
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d)
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DEBUG=1
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;;
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f)
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FORCE=1
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;;
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c)
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ADDCOMMENT=1
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;;
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n)
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NOSORT=1
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;;
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\?)
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exit 2
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;;
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esac
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done
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if [ "$FORCE" -a "$ADDCOMMENT" ] ; then
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echo "-f and -c options cannot be used together"
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exit 2
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fi
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shift $((OPTIND-1))
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if [ -f xx00 -o -f xx01 -o -f xx99 ] ; then
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echo "WARNING! Output files named xx?? already exist." >&2
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read -p "Press <Enter> to erase files, or Ctrl-C to exit..."
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echo >&2
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fi
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rm -f xx00 xx01 xx99
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SRCFILE=config-$1
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[ ! -f $SRCFILE ] && echo "Input file" $SRCFILE "missing" && exit 2
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TGTFILE=kernel-*/linux-*.noarch/configs/kernel-2.6.*-$2.config
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[ ! -f $TGTFILE ] && echo "No target file matching" $TGTFILE "exists" && exit 2
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IX=0
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IN=0
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declare -a SAVECOMMENT
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cat ${SRCFILE} | while read TEXT ; do
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LINE=
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COMMENT=
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[ -z "$TEXT" ] && TEXT='#'
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if [ "${TEXT:0:7}" = "CONFIG_" -o "${TEXT:0:9}" = "# CONFIG_" ] ; then
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LINE=$(grep -n "^$TEXT" $TGTFILE | head -1 | cut -f 1 -d ':')
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if [ -z "$LINE" ] ; then
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[ "$DEBUG" ] && echo "nofind ->" "$TEXT"
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# see if option changed in output file
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OPTNAME=
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if [ "${TEXT:0:7}" = "CONFIG_" ] ; then
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OPTNAME=${TEXT%%=*}
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elif [ "${TEXT:0:9}" = "# CONFIG_" ] ; then
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OPTNAME=${TEXT%" is not set"}
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OPTNAME=${OPTNAME#\# }
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fi
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if [ "$OPTNAME" ] ; then
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for FINDTEXT in "^${OPTNAME}=" "^# ${OPTNAME} is not set" ; do
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if [ -z "$LINE" ] ; then
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[ "$DEBUG" ] && echo "looking for ->" "$FINDTEXT"
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LINE=$(grep -n "$FINDTEXT" $TGTFILE | head -1 | cut -f 1 -d ':')
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if [ "$LINE" ] ; then
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CHANGED=$(grep "$FINDTEXT" $TGTFILE | head -1)
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if [ "$FORCE" ] ; then
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TEXT="$CHANGED"
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[ "$DEBUG" ] && echo 'forced ->' "$TEXT"
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else
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if [ "$ADDCOMMENT" ] ; then
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if [ ${CHANGED:0:1} = '#' ] ; then
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NEWOPT="not set"
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else
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NEWOPT=${CHANGED#$OPTNAME}
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fi
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COMMENT="# -- Next option changed to \"${NEWOPT}\" at target line $LINE --"
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fi
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fi
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fi
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fi
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done
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fi
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fi
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else
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COMMENT="$TEXT"
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TEXT=
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fi
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[ "$DEBUG" -a "$COMMENT" ] && echo "comment ->" "$LINE" "$COMMENT"
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[ "$DEBUG" -a "$TEXT" ] && echo "text ->" "$LINE" "$TEXT"
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if [ "$TEXT" ] ; then
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# use input line numbers if not sorting
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[ "$NOSORT" ] && LINE=$IN
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# make sure it has a line number
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[ -z "$LINE" ] && LINE=999999
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# print saved comments first
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if [ $IX -gt 0 ] ; then
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[ "$DEBUG" ] && echo " ->" $IX "comments were saved"
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(( IX-- ))
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for IX in $(seq 0 $IX) ; do
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echo "$LINE":"${SAVECOMMENT[$IX]}"
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done
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unset SAVECOMMENT
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IX=0
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fi
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[ "$COMMENT" ] && echo "$LINE":"$COMMENT"
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echo "$LINE":"$TEXT"
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else
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# no output yet, save the comment
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SAVECOMMENT[$IX]="$COMMENT"
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[ "$DEBUG" ] && echo "savecomment ->" "$LINE" "${SAVECOMMENT[$IX]}"
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(( IX++ ))
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fi
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((IN++))
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done > xx99
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if [ "$DEBUG" ] ; then
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cat xx99
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else
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cat xx99 | sort -s -t ":" -k 1g | csplit -k -s - /^999999/ 2>/dev/null
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cat xx00 | cut -f 2- -d ':'
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if [ -s xx01 ] ; then
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echo
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echo '# ------------ UNMATCHED OPTIONS ------------'
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echo
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cat xx01 | cut -f 2- -d ':'
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fi
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fi
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rm -f xx00 xx01 xx99
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