Messages in this thread Patch in this message | | | Date | Sat, 17 Nov 2007 21:51:25 +0100 | From | Andreas Mohr <> | Subject | [PATCH] eradicate bashisms in scripts/patch-kernel |
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Make the patch-kernel shell script sufficiently compatible with POSIX shells, i.e., remove bashisms from scripts/patch-kernel. This means that it now also works on dash 0.5.3-5 and still works on bash 3.1dfsg-8.
Full changelog: - replaced non-standard "==" by standard "=" - replaced non-standard "source" statement by POSIX "dot" command - use leading ./ on mktemp filename to force the tempfile to a local directory, so that the search path is not used - replace bash syntax to remove leading dot by similar POSIX syntax - added missing (optional/not required) $ signs to shell variable names
Signed-off-by: Andreas Mohr <andi@lisas.de> --- Thanks for all comments! I might want to make sure to read more specs next time... Cowardly didn't dare to pre-add Randy's line, feel free to ack ;)
--- linux-2.6.23/scripts/patch-kernel.orig 2007-11-17 21:26:47.000000000 +0100 +++ linux-2.6.23/scripts/patch-kernel 2007-11-17 21:27:59.000000000 +0100 @@ -65,7 +65,7 @@ patchdir=${2-.} stopvers=${3-default} -if [ "$1" == -h -o "$1" == --help -o ! -r "$sourcedir/Makefile" ]; then +if [ "$1" = -h -o "$1" = --help -o ! -r "$sourcedir/Makefile" ]; then cat << USAGE usage: $PNAME [-h] [ sourcedir [ patchdir [ stopversion ] [ -acxx ] ] ] source directory defaults to /usr/src/linux, @@ -182,10 +182,12 @@ } # set current VERSION, PATCHLEVEL, SUBLEVEL, EXTRAVERSION -TMPFILE=`mktemp .tmpver.XXXXXX` || { echo "cannot make temp file" ; exit 1; } +# force $TMPFILEs below to be in local directory: a slash character prevents +# the dot command from using the search path. +TMPFILE=`mktemp ./.tmpver.XXXXXX` || { echo "cannot make temp file" ; exit 1; } grep -E "^(VERSION|PATCHLEVEL|SUBLEVEL|EXTRAVERSION)" $sourcedir/Makefile > $TMPFILE tr -d [:blank:] < $TMPFILE > $TMPFILE.1 -source $TMPFILE.1 +. $TMPFILE.1 rm -f $TMPFILE* if [ -z "$VERSION" -o -z "$PATCHLEVEL" -o -z "$SUBLEVEL" ] then @@ -202,11 +204,7 @@ EXTRAVER= if [ x$EXTRAVERSION != "x" ] then - if [ ${EXTRAVERSION:0:1} == "." ]; then - EXTRAVER=${EXTRAVERSION:1} - else - EXTRAVER=$EXTRAVERSION - fi + EXTRAVER=${EXTRAVERSION#.} EXTRAVER=${EXTRAVER%%[[:punct:]]*} #echo "$PNAME: changing EXTRAVERSION from $EXTRAVERSION to $EXTRAVER" fi @@ -251,16 +249,16 @@ do CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL" EXTRAVER= - if [ $stopvers == $CURRENTFULLVERSION ]; then + if [ $stopvers = $CURRENTFULLVERSION ]; then echo "Stopping at $CURRENTFULLVERSION base as requested." break fi - SUBLEVEL=$((SUBLEVEL + 1)) + SUBLEVEL=$(($SUBLEVEL + 1)) FULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL" #echo "#___ trying $FULLVERSION ___" - if [ $((SUBLEVEL)) -gt $((STOPSUBLEVEL)) ]; then + if [ $(($SUBLEVEL)) -gt $(($STOPSUBLEVEL)) ]; then echo "Stopping since sublevel ($SUBLEVEL) is beyond stop-sublevel ($STOPSUBLEVEL)" exit 1 fi @@ -297,7 +295,7 @@ if [ x$gotac != x ]; then # Out great user wants the -ac patches # They could have done -ac (get latest) or -acxx where xx=version they want - if [ $gotac == "-ac" ]; then + if [ $gotac = "-ac" ]; then # They want the latest version HIGHESTPATCH=0 for PATCHNAMES in $patchdir/patch-${CURRENTFULLVERSION}-ac*\.* - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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