1 # -*- mode: sh; sh-basic-offset: 3; indent-tabs-mode: nil; -*-
3 # duplicity script for backupninja
8 getconf testconnect yes
25 getconf incremental yes
29 getconf bandwidthlimit 0
35 ### SANITY CHECKS ##############################################################
37 [ -n "$desturl" -o -n "$destdir" ] || fatal "The destination directory (destdir) must be set when desturl is not used."
38 [ -n "$include" ] || fatal "No source includes specified"
39 [ -n "$password" ] || fatal "The password option must be set."
42 # If vservers are configured, check that the ones listed in $vsnames do exist.
44 if [ $vservers_are_available = yes ]; then
45 if [ "$vsnames" = all ]; then
46 vsnames="$found_vservers"
48 if ! vservers_exist "$vsnames" ; then
49 fatal "At least one of the vservers listed in vsnames ($vsnames) does not exist."
52 if [ -n "$vsinclude" ]; then
53 info "Using vservers '$vsnames'"
57 [ -z "$vsinclude" ] || warning 'vservers support disabled in backupninja.conf, vsincludes configuration lines will be ignored'
60 ### See if we can login on $desthost
61 if [ "$testconnect" == "yes" ]; then
62 if [ -n "$desturl" ]; then
63 warning 'testconnect can not be used when desturl is set'
65 debug "ssh $sshoptions -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1'"
67 result=`ssh $sshoptions -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1'`
68 if [ "$result" != "1" ]; then
69 fatal "Can't connect to $desthost as $destuser."
71 debug "Connected to $desthost as $destuser successfully"
77 ### COMMAND-LINE MANGLING ######################################################
79 ### initialize $execstr*
81 execstr_options="$options --no-print-statistics"
83 if [ -n "$desturl" ]; then
84 [ -z "$destuser" ] || warning 'the configured destuser is ignored since desturl is set'
85 [ -z "$desthost" ] || warning 'the configured desthost is ignored since desturl is set'
86 [ -z "$destdir" ] || warning 'the configured destdir is ignored since desturl is set'
87 execstr_serverpart="$desturl"
89 execstr_serverpart="scp://$destuser@$desthost/$destdir"
93 duplicity_version="`duplicity --version | @AWK@ '{print $2}'`"
94 duplicity_major="`echo $duplicity_version | @AWK@ -F '.' '{print $1}'`"
95 duplicity_minor="`echo $duplicity_version | @AWK@ -F '.' '{print $2}'`"
96 duplicity_sub="`echo $duplicity_version | @AWK@ -F '.' '{print $3}'`"
98 ### ssh/scp/sftp options
99 # 1. duplicity >= 0.4.2 needs --sftp-command
100 # (NB: sftp does not support the -l option)
101 # 2. duplicity 0.4.3 to 0.4.9 replace --ssh-command with --ssh-options, which is
102 # passed to scp and sftp commands by duplicity. We don't use it: since this
103 # version does not use the ssh command anymore, we keep compatibility with
104 # our previous config files by passing $sshoptions to --scp-command and
105 # --sftp-command ourselves
107 scpoptions="$sshoptions"
108 [ "$bandwidthlimit" == 0 ] || scpoptions="$scpoptions -l $bandwidthlimit"
110 # < 0.4.2 : only uses ssh and scp
111 if [ "$duplicity_major" -le 0 -a "$duplicity_minor" -le 4 -a "$duplicity_sub" -lt 2 ]; then
112 execstr_options="${execstr_options} --scp-command 'scp $scpoptions' --ssh-command 'ssh $sshoptions'"
113 # >= 0.4.2 : also uses sftp, --sftp-command option is now supported
115 sftpoptions="$sshoptions"
116 # == 0.4.2 : uses ssh, scp and sftp
117 if [ "$duplicity_major" -eq 0 -a "$duplicity_minor" -eq 4 -a "$duplicity_sub" -eq 2 ]; then
118 execstr_options="${execstr_options} --scp-command 'scp $scpoptions' --sftp-command 'sftp $sftpoptions' --ssh-command 'ssh $sshoptions'"
119 # >= 0.4.3 : uses only scp and sftp, --ssh-command option is not supported anymore
121 execstr_options="${execstr_options} --scp-command 'scp $scpoptions' --sftp-command 'sftp $sftpoptions'"
125 ### Symmetric or asymmetric (public/private key pair) encryption
126 if [ -n "$encryptkey" ]; then
127 execstr_options="${execstr_options} --encrypt-key $encryptkey"
128 debug "Data will be encrypted with the GnuPG key $encryptkey."
130 debug "Data will be encrypted using symmetric encryption."
133 ### Data signing (or not)
134 if [ "$sign" == yes ]; then
135 # duplicity is not able to sign data when using symmetric encryption
136 [ -n "$encryptkey" ] || fatal "The encryptkey option must be set when signing."
137 # if needed, initialize signkey to a value that is not empty (checked above)
138 [ -n "$signkey" ] || signkey="$encryptkey"
139 execstr_options="${execstr_options} --sign-key $signkey"
140 debug "Data will be signed will the GnuPG key $signkey."
142 debug "Data won't be signed."
145 ### Incremental or full backup mode
146 # If incremental==yes, use the default duplicity behaviour: perform an
147 # incremental backup if old signatures can be found, else switch to
149 # If incremental==no, force a full backup anyway.
150 if [ "$incremental" == "no" ]; then
151 # before 0.4.4, full was an option and not a command
152 if [ "$duplicity_major" -le 0 -a "$duplicity_minor" -le 4 -a "$duplicity_sub" -lt 4 ]; then
153 execstr_options="${execstr_options} --full"
155 execstr_command="full"
159 ### Temporary directory
161 if [ -n "$tmpdir" ]; then
162 if [ ! -d "$tmpdir" ]; then
163 info "Temporary directory ($tmpdir) does not exist, creating it."
165 [ $? -eq 0 ] || fatal "Could not create temporary directory ($tmpdir)."
167 info "Using $tmpdir as TMPDIR"
168 precmd="${precmd}TMPDIR=$tmpdir "
171 ### Cleanup old backup sets (or not)
172 if [ "$keep" != "yes" ]; then
173 if [ "`echo $keep | tr -d 0-9`" == "" ]; then
176 # before 0.4.4, remove-older-than was an option and not a command
177 if [ "$duplicity_major" -le 0 -a "$duplicity_minor" -le 4 -a "$duplicity_sub" -lt 4 ]; then
178 execstr_options="${execstr_options} --remove-older-than $keep"
187 for i in $exclude; do
188 str="${i//__star__/*}"
189 execstr_source="${execstr_source} --exclude '$str'"
193 for i in $include; do
194 [ "$i" != "/" ] || fatal "Sorry, you cannot use 'include = /'"
195 str="${i//__star__/*}"
196 execstr_source="${execstr_source} --include '$str'"
200 if [ $usevserver = yes ]; then
201 for vserver in $vsnames; do
202 for vi in $vsinclude; do
203 str="${vi//__star__/*}"
204 str="$VROOTDIR/$vserver$str"
205 execstr_source="${execstr_source} --include '$str'"
212 ### EXECUTE ####################################################################
214 execstr_source=${execstr_source//\\*/\\\\\\*}
216 ### Cleanup commands (duplicity >= 0.4.4)
219 if [ "$duplicity_major" -ge 0 -a "$duplicity_minor" -ge 4 -a "$duplicity_sub" -ge 4 ]; then
220 debug "$precmd duplicity cleanup $execstr_options $execstr_serverpart"
222 export PASSPHRASE=$password
223 output=`nice -n $nicelevel \
225 "$precmd duplicity cleanup $execstr_options $execstr_serverpart 2>&1"`
227 if [ $exit_code -eq 0 ]; then
229 info "Duplicity cleanup finished successfully."
232 warning "Duplicity cleanup failed."
238 if [ "$keep" != "yes" ]; then
239 if [ "$duplicity_major" -ge 0 -a "$duplicity_minor" -ge 4 -a "$duplicity_sub" -ge 4 ]; then
240 debug "$precmd duplicity remove-older-than $keep $execstr_options $execstr_serverpart"
242 export PASSPHRASE=$password
243 output=`nice -n $nicelevel \
245 "$precmd duplicity remove-older-than $keep $execstr_options $execstr_serverpart 2>&1"`
247 if [ $exit_code -eq 0 ]; then
249 info "Duplicity remove-older-than finished successfully."
252 warning "Duplicity remove-older-than failed."
259 debug "$precmd duplicity $execstr_command $execstr_options $execstr_source --exclude '**' / $execstr_serverpart"
261 export PASSPHRASE=$password
262 output=`nice -n $nicelevel \
264 "$precmd duplicity $execstr_command $execstr_options $execstr_source --exclude '**' / $execstr_serverpart 2>&1"`
266 if [ $exit_code -eq 0 ]; then
268 info "Duplicity finished successfully."
271 fatal "Duplicity failed."