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libmtp8.preinst
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2008-08-01
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2KB
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#!/bin/sh
# preinst script for libmtp
set -e
PACKAGE=libmtp8
# Remove a no-longer used conffile
# Taken from http://wiki.debian.org/DpkgConffileHandling
rm_conffile() {
PKGNAME="$1"
CONFFILE="$2"
if [ -e "$CONFFILE" ]; then
md5sum="`md5sum \"$CONFFILE\" | sed -e \"s/ .*//\"`"
old_md5sum="`dpkg-query -W -f='${Conffiles}' $PKGNAME | sed -n -e \"\\\\' $CONFFILE'{s/ obsolete$//;s/.* //p}\"`"
if [ "$md5sum" != "$old_md5sum" ]; then
echo "Obsolete conffile $CONFFILE has been modified by you."
echo "Saving as $CONFFILE.dpkg-bak ..."
mv -f "$CONFFILE" "$CONFFILE".dpkg-bak
else
echo "Removing obsolete conffile $CONFFILE ..."
rm -f "$CONFFILE"
fi
fi
}
# Prepare to move a conffile without triggering a dpkg question
prep_mv_conffile() {
PKGNAME="$1"
CONFFILE="$2"
if [ -e "$CONFFILE" ]; then
md5sum="`md5sum \"$CONFFILE\" | sed -e \"s/ .*//\"`"
old_md5sum="`dpkg-query -W -f='${Conffiles}' $PKGNAME | sed -n -e \"\\\\' $CONFFILE '{s/ obsolete$//;s/.* //p}\"`"
if [ "$md5sum" = "$old_md5sum" ]; then
rm -f "$CONFFILE"
fi
fi
}
case "$1" in
install|upgrade)
if dpkg --compare-versions "$2" le 0.2.5-1 ; then
rm_conffile $PACKAGE /etc/hotplug/usb/$PACKAGE.usermap
rm_conffile $PACKAGE /etc/hotplug/usb/$PACKAGE.sh
fi
if dpkg --compare-versions "$2" lt-nl 0.2.6.1-2ubuntu1 ; then
rm -f /etc/udev/rules.d/libmtp8.rules
prep_mv_conffile $PACKAGE /etc/udev/libmtp8.rules
fi
esac
exit 0