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#!/bin/bash
SRC=($(ls config-* 2>/dev/null))
TGT=($(ls kernel-*/linux-*.noarch/configs/kernel-2.6.*-*.config \
kernel-*/linux-*.noarch/configs/kernel-2.6.*-*-debug.config 2>/dev/null))
TGT1=(${TGT[*]#kernel-*/linux-*.noarch/configs/kernel-2.6.*-})
ALL_OPTS="cdfimn"
if [ $# -lt 2 ] ; then
echo -e "Usage:\n $(basename $0) [-$ALL_OPTS] input target\n"
echo -e " Sort input config file into the same order as the target\n"
echo -e " -c: insert comments about non-matching/impossible items"
echo -e " -d: show raw unsorted output with extra debug text"
echo -e " -f: force output to match what is in the target config,"
echo -e " and/or remove impossible config items"
echo -e " -i: find impossible config items"
echo -e " -m: find changed config items"
echo -e " -n: do not sort output\n"
echo -e " input: source config file" ' [' "${SRC[*]#config-}" ']\n'
echo -e " target: output arch name" ' [' "${TGT1[*]%.config}" ']\n'
exit 1
fi
while getopts "$ALL_OPTS" OPTION ; do
case $OPTION in
c)
ADDCOMMENT=1 ;;
d)
DEBUG=1 ;;
f)
FORCE=1 ;;
i)
FIND_IMPOSS=1 ;;
m)
FIND_CHANGED=1 ;;
n)
NOSORT=1 ;;
\?)
exit 2 ;;
esac
done
if [ "$FORCE" -a "$ADDCOMMENT" ] ; then
echo "-f and -c options cannot be used together"
exit 2
fi
shift $((OPTIND-1))
TEMPFILES="xx00 xx01 xx98 xx99"
TEMPLEFT=
for FILE in $TEMPFILES ; do
[ -f "$FILE" ] && TEMPLEFT="Y"
done
if [ "$TEMPLEFT" ] ; then
echo "WARNING! Output files named xx?? already exist." >&2
read -p "Press <Enter> to erase files, or Ctrl-C to exit..."
echo >&2
fi
rm -f $TEMPFILES
SRCFILE=config-$1
[ ! -f $SRCFILE ] && echo "Input file" $SRCFILE "missing" && exit 2
TGTFILE=kernel-*/linux-*.noarch/configs/kernel-2.6.*-$2.config
[ ! -f $TGTFILE ] && echo "No target file matching" $TGTFILE "exists" && exit 2
[ "$FIND_IMPOSS" ] && \
find kernel-*/*.noarch -name Kconfig\* -type f \
| xargs egrep -s -h '^[[:space:]]*(menu)?config[[:space:]]+' \
| sed -r 's/^[[:space:]]*(menu)?config[[:space:]]+/CONFIG_/' \
| sort | uniq >xx98
extract_optname() {
# extract the option name from $TEXT, setting $OPTNAME
OPTNAME=
if [ "${TEXT:0:7}" = "CONFIG_" ] ; then
OPTNAME=${TEXT%%=*}
elif [ "${TEXT:0:9}" = "# CONFIG_" ] ; then
OPTNAME=${TEXT%" is not set"}
OPTNAME=${OPTNAME#\# }
fi
}
print_saved_comments() {
if [ $IX -gt 0 ] ; then
[ "$DEBUG" ] && echo " ->" $IX "comments were saved"
(( IX-- ))
for IX in $(seq 0 $IX) ; do
echo "$LINE":"${SAVECOMMENT[$IX]}"
done
unset SAVECOMMENT
IX=0
fi
}
assign_line_number() {
# use input line numbers if not sorting
[ "$NOSORT" ] && LINE=$IN
# make sure it has a line number
[ -z "$LINE" ] && LINE=999999
}
IX=0
IN=0
declare -a SAVECOMMENT
cat ${SRCFILE} | {
while read TEXT ; do
LINE=
COMMENT=
# replace empty lines
[ -z "$TEXT" ] && TEXT='//'
if [ "${TEXT:0:7}" = "CONFIG_" -o "${TEXT:0:9}" = "# CONFIG_" ] ; then
LINE=$(grep -n "^$TEXT" $TGTFILE | head -1 | cut -f 1 -d ':')
if [ -z "$LINE" ] ; then
[ "$DEBUG" ] && echo "nofind ->" "$TEXT"
extract_optname
if [ "$OPTNAME" ] ; then
if [ "$FIND_CHANGED" ] ; then
for FINDTEXT in "^${OPTNAME}=" "^# ${OPTNAME} is not set" ; do
if [ -z "$LINE" ] ; then
[ "$DEBUG" ] && echo "looking for ->" "$FINDTEXT"
LINE=$(grep -n "$FINDTEXT" $TGTFILE | head -1 | cut -f 1 -d ':')
if [ "$LINE" ] ; then
CHANGED=$(grep "$FINDTEXT" $TGTFILE | head -1)
if [ "$FORCE" ] ; then
TEXT=$CHANGED
[ "$DEBUG" ] && echo 'forced ->' "$TEXT"
else
if [ "$ADDCOMMENT" ] ; then
if [ ${CHANGED:0:1} = '#' ] ; then
NEWOPT="not set"
else
NEWOPT=${CHANGED#$OPTNAME}
fi
COMMENT="# -- Next option changed to \"${NEWOPT}\" at target line $LINE --"
fi
fi
fi
fi
done
fi
if [ "$FIND_IMPOSS" -a -z "$LINE" -a -z "$COMMENT" ] ; then
POSSIBLE=$(grep -n "^$OPTNAME" xx98)
if [ -z "$POSSIBLE" ] ; then
if [ "$ADDCOMMENT" ] ; then
COMMENT="# -- Next option is impossible --"
elif [ "$FORCE" ] ; then
[ "$DEBUG" ] && echo 'impossible ->' "$TEXT"
TEXT=""
fi
fi
fi
fi
fi
else
# not a config variable
COMMENT="$TEXT"
TEXT=
fi
[ "$DEBUG" -a "$COMMENT" ] && echo "comment ->" "$LINE" "$COMMENT"
[ "$DEBUG" -a "$TEXT" ] && echo "text ->" "$LINE" "$TEXT"
if [ "$TEXT" ] ; then
assign_line_number
# print the saved comments first
print_saved_comments
# now print the latest comment and text
[ "$COMMENT" ] && echo "$LINE":"$COMMENT"
echo "$LINE":"$TEXT"
elif [ "$COMMENT" ] ; then
# no output yet, save the comment
SAVECOMMENT[$IX]="$COMMENT"
let IX++
[ "$DEBUG" ] && echo 'savecomment (#'${IX}')'
fi
let IN++
done
# flush the buffers
assign_line_number
print_saved_comments
[ "$DEBUG" ] && echo "$IN lines read from input"
} >xx99
if [ "$DEBUG" ] ; then
# just show the raw output with debug info, then exit
cat xx99
else
# split output into two files, for matched and unmatched items
cat xx99 | sort -s -t ":" -k 1g | csplit -k -s - /^999999/ 2>/dev/null
cat xx00 | cut -f 2- -d ':' | sed 's/^\/\/$//'
if [ -s xx01 ] ; then
echo
echo '# ------------ UNMATCHED OPTIONS ------------'
echo
cat xx01 | cut -f 2- -d ':' | sed 's/^\/\/$//'
fi
fi
rm -f $TEMPFILES
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