1 # -*- mode: sh; sh-basic-offset: 3; indent-tabs-mode: nil; -*-
3 # rdiff-backup handler script for backupninja
4 # requires rdiff-backup
9 function test_connection() {
10 # given a user and host,
11 # tests the connection.
12 # if user or host is missing, returns 0
13 # (ie, assume it's a local connection).
15 debug "(local is assumed to be a good connection)"
20 debug "ssh -o PasswordAuthentication=no $host -l $user 'echo -n 1'"
21 local ret=`ssh -o PasswordAuthentication=no $host -l $user 'echo -n host is alive'`
22 if echo $ret | grep "host is alive"; then
23 debug "Connected to $host as $user successfully"
25 fatal "Can't connect to $host as $user."
29 function get_version() {
30 # given no arguments, returns the local version.
31 # given a user and host, returns the remote version.
32 # if user or host is missing, returns the local version.
33 if [ "$#" -lt 2 ]; then
34 debug "$RDIFFBACKUP -V"
35 echo `$RDIFFBACKUP -V`
39 debug "ssh $host -l $user '$RDIFFBACKUP -V'"
40 echo `ssh $host -l $user "$RDIFFBACKUP -V | grep rdiff-backup"`
44 function check_consistency() {
49 if [ "$type" == "local" ]; then
50 if [ "$user" != "" ]; then
51 warning "User should not be specified for local $section."
53 if [ "$host" != "" ]; then
54 warning "Host should not be specified for local $section."
57 if [ "$type" == "remote" ]; then
58 if [ "$user" == "" ]; then
59 fatal "User must be specified for remote $section."
61 if [ "host" == "" ]; then
62 fatal "Host must be specifed for remote $section."
70 getconf testconnect yes
74 getconf type; sourcetype=$type
75 getconf user; sourceuser=$user
76 getconf host; sourcehost=$host
77 check_consistency "source" "$type" "$user" "$host"
86 getconf directory; destdir=$directory
89 getconf type; desttype=$type
90 getconf user; destuser=$user
91 getconf host; desthost=$host
92 check_consistency "destination" "$type" "$user" "$host"
96 # If vservers are configured, check that the ones listed in $vsnames do exist.
98 if [ $vservers_are_available = yes ]; then
99 if [ "$vsnames" = all ]; then
100 vsnames="$found_vservers"
102 if ! vservers_exist "$vsnames" ; then
103 fatal "At least one of the vservers listed in vsnames ($vsnames) does not exist."
106 if [ -n "$vsinclude" ]; then
107 info "Using vservers '$vsnames'"
111 [ -z "$vsinclude" ] || warning 'vservers support disabled in backupninja.conf, vsincludes configuration lines will be ignored'
114 # check the connection at the source and destination
115 if [ "$testconnect" = "yes" ] || [ "${test}" -eq 1 ]; then
116 test_connection $sourceuser $sourcehost
117 test_connection $destuser $desthost
120 # see that rdiff-backup has the same version at the source and destination
121 sourceversion=`get_version $sourceuser $sourcehost`
122 destversion=`get_version $destuser $desthost`
123 if [ "$sourceversion" != "$destversion" ]; then
124 fatal "rdiff-backup does not have the same version at the source and at the destination."
127 # source specific checks
128 [ "$include" != "" -o "$vsinclude" != "" ] || fatal "No source includes specified"
130 remote ) execstr_sourcepart="$sourceuser@$sourcehost::/" ;;
131 local ) execstr_sourcepart="/" ;;
132 * ) fatal "sourcetype '$sourcetype' is neither local nor remote" ;;
135 # destination specific checks
136 [ "$destdir" != "" ] || fatal "Destination directory not set"
138 remote ) execstr_destpart="$destuser@$desthost::$destdir/$label" ;;
139 local ) execstr_destpart="$destdir/$label" ;;
140 * ) fatal "desttype '$desttype' is neither local nor remote" ;;
143 ### REMOVE OLD BACKUPS ###
145 if [ "`echo $keep | tr -d 0-9`" == "" ]; then
146 # add D if no other date unit is specified
150 removestr="$RDIFFBACKUP --force --remove-older-than $keep "
151 if [ "$desttype" == "remote" ]; then
152 removestr="${removestr}${destuser}@${desthost}::"
154 removestr="${removestr}${destdir}/${label}";
158 output=`$removestr 2>&1`
161 info "Removing backups older than $keep days succeeded."
164 warning "Failed removing backups older than $keep."
170 execstr="$RDIFFBACKUP $options --print-statistics "
174 # TODO: order the includes and excludes
176 for i in $exclude; do
177 str="${i//__star__/*}"
178 execstr="${execstr}--exclude '$str' "
181 for i in $include; do
182 [ "$i" != "/" ] || fatal "Sorry, you cannot use 'include = /'"
183 str="${i//__star__/*}"
184 execstr="${execstr}--include '$str' "
188 if [ $usevserver = yes ]; then
189 for vserver in $vsnames; do
190 for vi in $vsinclude; do
191 str="${vi//__star__/*}"
192 execstr="${execstr}--include '$VROOTDIR/$vserver$str' "
199 # exclude everything else
200 execstr="${execstr}--exclude '/*' "
202 # include client-part and server-part
203 execstr="${execstr}$execstr_sourcepart $execstr_destpart"
207 output=`nice -n $nicelevel su -c "$execstr" 2>&1`
210 info "Successfully finished backing up source $label"
213 warning "Failed backup up source $label"