#!/bin/sh
#
# /usr/local/sbin/localbackupconfig
# Copyright 2001 Jonas Smedegaard <dr@jones.dk>
#
# $Id: localbackupconfig,v 1.6 2002-10-17 17:20:56 jonas Exp $
#
# .dpkg-new files appear when refusing to update a conffile on package update
#
# .orig files you should save yourself before customizing a configfile
#
# .old files are for customizing when you don't have the original (anymore)
#
# .bak is... eh... just in case you felt like using that name now and then...
#

set -e

FQDN=`hostname -f`
BACKUPDIR=/var/local/backups/$FQDN
LOCALCONFIGDIR=/etc/local-$FQDN

if [ -e $LOCALCONFIGDIR ]; then
	mkdir -p $BACKUPDIR/$LOCALCONFIGDIR
	cp -fa $LOCALCONFIGDIR $BACKUPDIR/`dirname $LOCALCONFIGDIR`/
fi
changedfiles=`find /etc -name '*.bak' -o -name '*.old' -o -name '*.orig' -o -name '*.dpkg-new' | sed -e 's,\.\(bak\|old\|orig\|dpkg-new\)$,,' | grep -v "^$LOCALCONFIGDIR" | sort -u`
for i in $changedfiles; do
	if [ -e $i ]; then
		if [ -e $i.dpkg-new ]; then
			orig="$i.dpkg-new"
		elif [ -e $i.orig ]; then
			orig="$i.orig"
		elif [ -e $i.old ]; then
			orig="$i.old"
		elif [ -e $i.bak ]; then
			orig="$i.bak"
		else
			echo "What the f... Original for \"$i\" has disappeared?!?"
			exit 1
		fi
		mkdir -p $BACKUPDIR/`dirname $i`
		cp -fa $i $BACKUPDIR/`dirname $i`/
		diff -ruN $orig $i > $BACKUPDIR/$i.diff || true
	fi
done