#!/bin/bash
#
-# wizbackup 2.0 - Simple rsync backup
+# WizBackup 2.0 - Simple rsync backup
# Based on incremental-backup 0.1 by Matteo Mattei
#
# Copyright 2006 Matteo Mattei <matteo.mattei@gmail.com>
# Copyright 2007, 2008, 2009, 2010, 2011 Bernie Innocenti <bernie@codewiz.org>
#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License,
-# or (at your option) any later version.
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License,
+# or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
if [ $# -lt 2 ]; then
# NOTE: --timeout needs to be large enough: if a large dir tree don't change a lot of time can pass without I/O
# NOTE: --inplace will clobber linked files in older snapshots. DON'T USE IT!
-RSYNC_OPTIONS="-HAXa --stats --timeout 1800 --numeric-ids --delete --delete-excluded --ignore-errors $@"
-# NUMBER OF SAVED ARCHIVES
-N_SNAPSHOT=45
-RESULT=500
+RSYNC_OPTS="-HAXa --stats --timeout 1800 --numeric-ids --delete --delete-excluded --ignore-errors $@"
+
+# Number of saved snapshots
+SNAPSHOTS=45
+RESULT=500
DATE=`date +"%Y%m%d"`
DEST="`echo $DEST | sed -e 's/\/$//'`"
# Use "backup" ssh key with ssh protocol, or password file for rsync protocol
if [ "${SRC%:*}" == "rsync" ]; then
- RSYNC_PWD="--password-file=/etc/wizbackup.pwd --contimeout 10"
+ RSYNC_OPTS="$RSYNC_OPTS --password-file=/etc/wizbackup/rsync_password --contimeout 10"
else
- export RSYNC_RSH="ssh -i /root/.ssh/id_backup -c arcfour -x -o VerifyHostKeyDNS=yes"
- RSYNC_PWD=""
+ export RSYNC_RSH="ssh -i /etc/wizbackup/ssh_id -c arcfour -x -o VerifyHostKeyDNS=yes -o StrictHostKeyChecking=no"
fi
# Error tolerant grep
do_backup()
{
set -o pipefail
- echo "$(date): Starting rsync: rsync $RSYNC_PWD $RSYNC_OPTIONS $SRC $DEST/$DATE/"
- rsync $RSYNC_PWD $RSYNC_OPTIONS "$SRC" "$DEST/tmp/" 2>&1 | tgrep -v -E 'vanished|some files'
+ echo "$(date): rsync $RSYNC_OPTS $SRC $DEST/tmp/"
+ rsync $RSYNC_OPTS "$SRC" "$DEST/tmp/" 2>&1 | tgrep -v -E 'vanished|some files'
RESULT=$?
case "$RESULT" in
0|24)
do_prune()
{
- local old="`ls | grep -v tmp | head -n -$N_SNAPSHOT`"
+ local old="`ls | grep -v tmp | head -n -$SNAPSHOTS`"
if [ ! -z "$old" ]; then
echo "$(date): Removing oldest snapshot(s): $old..."
rm -rf "$old" || exit 669
do_link()
{
local newest=`ls | grep -v tmp | tail -n 1`
- if [ -z "$newest" ]; then
+ if [ -d "$DEST/tmp" ]; then
+ echo "$(date): Continuing with pre-existing snapshot $DEST/tmp"
+ elif [ -z "$newest" ]; then
echo "$(date): No previous snapshot found, performing a full backup!"
- elif [ -d "$DEST/tmp" ]; then
- echo "$(date): Continuing with preexisting snapshot $DEST/tmp"
else
echo "$(date): Linking snapshot $DEST/$newest to $DEST/tmp"
# TODO: Creating the hardlinks takes a lot of time.
# Avoid clobbering the latest snapshot if the remote host does
# not allow us to connect
# --contimeout: sometimes hangs on connection...
- rsync $RSYNC_PWD $RSYNC_OPTIONS --dry-run --no-recursive "$SRC" >/dev/null
+ rsync $RSYNC_OPTS --dry-run --no-recursive "$SRC" >/dev/null
RESULT=$?
if [ $RESULT -ne 0 ]; then
echo "$(date): rsync test failed: $RESULT. Aborting."