File: preinst

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ifplugd 0.28-19
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#!/bin/sh
set -e

# Remove a no-longer used conffile
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 $CONFFILE.dpkg-old ..."
			mv -f "$CONFFILE" "$CONFFILE".dpkg-old
		else
			echo "Removing obsolete conffile $CONFFILE ..."
			rm -f "$CONFFILE"
		fi
	fi
}

LASTVERSION="0.28-1"

case "$1" in
    install)
	    if dpkg --compare-versions "$2" le "$LASTVERSION"; then
		    rm_conffile ifplugd "/etc/hotplug.d/net/ifplugd.hotplug"
	    fi
	    ;;
    upgrade)
	    ### Move old apm hook script if appropriate ###
	    if [ -f /etc/apm/event.d/20ifplugd ] ; then
		[ -d /etc/apm/scripts.d/ ] || mkdir /etc/apm/scripts.d/
		if [ -f /etc/apm/scripts.d/ifplugd ] ; then
			mv -f /etc/apm/event.d/20ifplugd /etc/apm/event.d/20ifplugd.dpkg-old
			chmod ugo-x /etc/apm/event.d/20ifplugd.dpkg-old
		else
			mv -f /etc/apm/event.d/20ifplugd /etc/apm/scripts.d/ifplugd
		fi
		for F in /etc/apm/suspend.d/20ifplugd /etc/apm/resume.d/80ifplugd /etc/apm/other.d/50ifplugd ; do
			[ -e $F ] && { mv -f $F ${F}.dpkg-old ; chmod ugo-x ${F}.dpkg-old ; }
			ln -nsf ../scripts.d/ifplugd $F
		done
	    fi

	    # rename old script (old typo bug), maybe user changed it:
	    if [ -f /etc/apm/script.d/ifplugd ] ; then
		    mv /etc/apm/script.d/ifplugd /etc/apm/script.d/ifplugd.dpkg-old
	    fi

	    # change permissions of the old /etc/udev/ifplugd.rules
	    if [ -f /etc/udev/ifplugd.rules ] ; then
		    chmod 644 /etc/udev/ifplugd.rules
	    fi

	    # Remove hand-linked /etc/udev/rules.d/030_ifplugd.rules
	    # Now handled by dh_installudev
	    if [ -f /etc/udev/rules.d/030_ifplugd.rules ] ; then
		    rm -f /etc/udev/rules.d/030_ifplugd.rules
	    fi

	    if dpkg --compare-versions "$2" le "$LASTVERSION"; then
		    rm_conffile ifplugd "/etc/hotplug.d/net/ifplugd.hotplug"
	    fi
	;;
esac

#DEBHELPER#