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#! /bin/bash
# generates script doing what "make uninstall" would do
# first parameter: the name of the uninstallation script, defaulting to uninstall.sh
# second, optional parameter: the command to execute to uninstall, like "rpm -e armagetronad".
#set -x
UNINSTALL=$1
test x$UNINSTALL = x && UNINSTALL=uninstall
EXTERNAL_CMD=$2
test -z "`echo $UNINSTALL | grep '^/'`" && UNINSTALL=`pwd`/$UNINSTALL
echo "Generating uninstallation script" $UNINSTALL...
if test "$EXTERNAL_CMD" != "" && test "$EXTERNAL_CMD" != "yes"; then
{
echo '#! /bin/sh'
echo "$EXTERNAL_CMD"
} > $UNINSTALL
else
# start $UNINSTALL
cat > ${UNINSTALL} <<EOF
#! /bin/sh
# uninstalls ${PROGTITLE}
# set default destdir to where the game was installed to
test -z "\${DESTDIR}" && DESTDIR=${ROOTDIR}
export DESTDIR
# uninstall system files
\${DESTDIR}${SCRIPTDIR}/sysinstall uninstall ${PREFIX} || exit 1
# automaticall generated from "make install"
EOF
# do an installation
echo -n "Performing test installation..."
DEST=$(pwd)/.foruninstall
# test for recursion
if echo ${DESTDIR} | grep "\.foruninstall$"; then
echo "Recursion detected, aborting."
exit 0
fi
if ${MAKE} DESTDIR=${DEST} install > /dev/null; then
echo "Success!"
else
echo "Failure :("
rm -rf $DEST
exit -1
fi
find "$DEST" -type d | sed -e "s,^${DEST},rmdir --ignore-fail-on-non-empty \\\$\{DESTDIR\}," > ${UNINSTALL}.dir0
find "$DEST" -type f | sed -e "s,^${DEST},rm -f \\\$\{DESTDIR\}," > ${UNINSTALL}.files
# less ${UNINSTALL}.dir0
# add all parent directories of those that are still game-specific
grep ${PROGNAME} ${UNINSTALL}.dir0 > ${UNINSTALL}.dir
while test -s ${UNINSTALL}.dir0; do
sed -e "s,/[^/]*\$,," < ${UNINSTALL}.dir0 | grep ${PROGNAME} > ${UNINSTALL}.dir1
cat ${UNINSTALL}.dir1 >> ${UNINSTALL}.dir
mv ${UNINSTALL}.dir1 ${UNINSTALL}.dir0
done
# compose uninstall script from file and directory list
cat ${UNINSTALL}.files >> ${UNINSTALL}
sort ${UNINSTALL}.dir --reverse --unique >> ${UNINSTALL}
rm -rf ${DEST}
fi
# clean up
rm -f ${UNINSTALL}.dir ${UNINSTALL}.dir0 ${UNINSTALL}.files
chmod 755 ${UNINSTALL}
# less ${UNINSTALL}
echo "done."
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