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 $sshoptions -o PasswordAuthentication=no $host -l $user 'echo -n 1'"
21 local ret=`ssh $sshoptions -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 $sshoptions $host -l $user '$RDIFFBACKUP -V'"
40 echo `ssh $sshoptions $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."
67 function check_cstream() {
69 if [ ! -x $cstream ]; then
70 fatal "Can't find your cstream binary (trying: $cstream). If you use bwlimit you must have cstream installed."
77 getconf testconnect yes
82 getconf type; sourcetype=$type
83 getconf user; sourceuser=$user
84 getconf host; sourcehost=$host
85 check_consistency "source" "$type" "$user" "$host"
94 getconf directory; destdir=$directory
97 getconf type; desttype=$type
98 getconf user; destuser=$user
99 getconf host; desthost=$host
101 check_consistency "destination" "$type" "$user" "$host"
105 # If vservers are configured, check that the ones listed in $vsnames do exist.
107 if [ $vservers_are_available = yes ]; then
108 if [ "$vsnames" = all ]; then
109 vsnames="$found_vservers"
111 if ! vservers_exist "$vsnames" ; then
112 fatal "At least one of the vservers listed in vsnames ($vsnames) does not exist."
115 if [ -n "$vsinclude" ]; then
116 info "Using vservers '$vsnames'"
120 [ -z "$vsinclude" ] || warning 'vservers support disabled in backupninja.conf, vsincludes configuration lines will be ignored'
123 # check the connection at the source and destination
124 [ -n "$test" ] || test=0
125 if [ "$testconnect" = "yes" ] || [ "${test}" -eq 1 ]; then
126 test_connection $sourceuser $sourcehost
127 test_connection $destuser $desthost
130 if [ $ignore_version != "yes" ]; then
131 # see that rdiff-backup has the same version at the source and destination
132 sourceversion=`get_version $sourceuser $sourcehost`
133 destversion=`get_version $destuser $desthost`
134 if [ "$sourceversion" != "$destversion" ]; then
135 fatal "rdiff-backup does not have the same version at the source and at the destination."
139 # source specific checks
141 remote ) execstr_sourcepart="$sourceuser@$sourcehost::/" ;;
142 local ) execstr_sourcepart="/" ;;
143 * ) fatal "sourcetype '$sourcetype' is neither local nor remote" ;;
146 # destination specific checks
147 [ "$destdir" != "" ] || fatal "Destination directory not set"
149 remote ) execstr_destpart="$destuser@$desthost::$destdir/$label" ;;
150 local ) execstr_destpart="$destdir/$label" ;;
151 * ) fatal "desttype '$desttype' is neither local nor remote" ;;
154 ### REMOVE OLD BACKUPS ###
156 if [ "$keep" != yes ]; then
158 if [ "`echo $keep | tr -d 0-9`" == "" ]; then
159 # add D if no other date unit is specified
163 removestr="$RDIFFBACKUP $options --force --remove-older-than $keep "
164 if [ "$desttype" == "remote" ]; then
165 removestr="${removestr}${destuser}@${desthost}::"
167 removestr="${removestr}${destdir}/${label}";
170 if [ $test = 0 ]; then
171 output="`su -c "$removestr" 2>&1`"
174 info "Removing backups older than $keep days succeeded."
177 warning "Failed removing backups older than $keep."
185 if [ ! -z $bwlimit ]; then
186 check_cstream $CSTREAM;
187 if [ "$desttype" = "remote" ]; then
188 RDIFFBACKUP="$RDIFFBACKUP --remote-schema 'cstream -t $bwlimit | ssh %s \''rdiff-backup --server\'''"
189 elif [ "$sourcetype" = "remote" ]; then
190 RDIFFBACKUP="$RDIFFBACKUP --remote-schema 'ssh %s \''rdiff-backup --server\'' | cstream -t $bwlimit'"
192 fatal "You specified a bandwidth limit but neither your source nor destination types are remote."
198 execstr="$RDIFFBACKUP $options --print-statistics "
202 symlinks_warning="Maybe you have mixed symlinks and '*' in this statement, which is not supported."
204 # TODO: order the includes and excludes
206 for i in $exclude; do
207 str="${i//__star__/*}"
208 execstr="${execstr}--exclude '$str' "
211 for i in $include; do
212 [ "$i" != "/" ] || fatal "Sorry, you cannot use 'include = /'"
213 str="${i//__star__/*}"
214 execstr="${execstr}--include '$str' "
218 if [ $usevserver = yes ]; then
219 for vserver in $vsnames; do
220 for vi in $vsinclude; do
221 str="${vi//__star__/*}"
222 str="$VROOTDIR/$vserver$str"
223 if [ -n "$str" ]; then
224 execstr="${execstr}--include '$str' "
226 warning "vsinclude statement '${vi//__star__/*}' will be ignored for VServer $vserver. $symlinks_warning"
234 # exclude everything else
235 [ "$include" != "" -o "$vsinclude" != "" ] && execstr="${execstr}--exclude '/*' "
237 # include client-part and server-part
238 execstr="${execstr}$execstr_sourcepart $execstr_destpart"
241 if [ $test = 0 ]; then
242 output=`nice -n $nicelevel su -c "$execstr" 2>&1`
245 info "Successfully finished backing up source $label"
248 warning "Failed backup up source $label"