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freebsd-ports/mail/imp3/pkg-deinstall

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#!/bin/sh
#
# $FreeBSD$
#
# Backup IMP config files, if needed.
if [ x$2 != xDEINSTALL ]; then
exit
fi
if [ -z "${PACKAGE_BUILDING}" ]; then
for cf in `ls ${PKG_PREFIX}/www/horde/imp/config/*php ${PKG_PREFIX}/www/horde/imp/config/*txt`; do
diff -bBqw $cf $cf.dist >/dev/null 2>&1
case $? in
0) # original config file, will be deleted by pkg-plist
;;
1) # config file has been updated, must be backuped
cp -p $cf $cf.previous
echo "===> Backing-up..."
echo "---> $cf has been saved ***"
echo "---> as $cf.previous ***"
;;
*) # not found?
;;
esac
done
fi