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" "$host"
85 getconf directory; destdir=$directory
88 getconf type; desttype=$type
89 getconf user; destuser=$user
90 getconf host; desthost=$host
91 check_consistency "destination" "$type" "$user" "$host"
95 # See if vservers are configured
97 if [ $vservers_are_available = yes -a -n "$vsinclude" ]; then
98 info "vserver method enabled"
102 # check the connection at the source and destination
103 if [ "$testconnect" = "yes" ] || [ "${test}" -eq 1 ]; then
104 test_connection $sourceuser $sourcehost
105 test_connection $destuser $desthost
108 # see that rdiff-backup has the same version at the source and destination
109 sourceversion=`get_version $sourceuser $sourcehost`
110 destversion=`get_version $destuser $desthost`
111 if [ "$sourceversion" != "$destversion" ]; then
112 fatal "rdiff-backup does not have the same version at the source and at the destination."
115 # source specific checks
116 [ "$include" != "" -o "$vsinclude" != "" ] || fatal "No source includes specified"
118 remote ) execstr_sourcepart="$sourceuser@$sourcehost::/" ;;
119 local ) execstr_sourcepart="/" ;;
120 * ) fatal "sourcetype '$sourcetype' is neither local nor remote" ;;
123 # destination specific checks
124 [ "$destdir" != "" ] || fatal "Destination directory not set"
126 remote ) execstr_destpart="$destuser@$desthost::$destdir/$label" ;;
127 local ) execstr_destpart="$destdir/$label" ;;
128 * ) fatal "desttype '$desttype' is neither local nor remote" ;;
131 ### REMOVE OLD BACKUPS ###
133 if [ "`echo $keep | tr -d 0-9`" == "" ]; then
134 # add D if no other date unit is specified
138 removestr="$RDIFFBACKUP --force --remove-older-than $keep "
139 if [ "$desttype" == "remote" ]; then
140 removestr="${removestr}${destuser}@${desthost}::"
142 removestr="${removestr}${destdir}/${label}";
146 output=`$removestr 2>&1`
149 info "Removing backups older than $keep days succeeded."
152 warning "Failed removing backups older than $keep."
158 execstr="$RDIFFBACKUP $options --print-statistics "
160 # TODO: order the includes and excludes
162 for i in "$exclude"; do
163 str="${i//__star__/*}"
164 execstr="${execstr}--exclude '$str' "
167 for i in "$include"; do
168 [ "$i" != "/" ] || fatal "Sorry, you cannot use 'include = /'"
169 str="${i//__star__/*}"
170 execstr="${execstr}--include '$str' "
174 if [ $usevserver = yes ]; then
175 for vserver in `ls $VROOTDIR|grep -v lost+found`; do
176 for vi in "$vsinclude"; do
177 str="${vi//__star__/*}"
178 execstr="${execstr}--include '$VROOTDIR/$vserver$str' "
183 # exclude everything else
184 execstr="${execstr}--exclude '/*' "
186 # include client-part and server-part
187 execstr="${execstr}$execstr_sourcepart $execstr_destpart"
191 output=`nice -n $nicelevel su -c "$execstr" 2>&1`
194 info "Successfully finished backing up source $label"
197 warning "Failed backup up source $label"