1 # -*- mode: sh; sh-basic-offset: 3; indent-tabs-mode: nil; -*-
3 # duplicity script for backupninja
8 getconf testconnect yes
24 getconf incremental yes
27 getconf bandwidthlimit 0
33 [ "$destdir" != "" ] || fatal "Destination directory not set"
34 [ "$include" != "" ] || fatal "No source includes specified"
36 ### vservers stuff ###
38 # If vservers are configured, check that the ones listed in $vsnames do exist.
40 if [ $vservers_are_available = yes ]; then
41 if [ "$vsnames" = all ]; then
42 vsnames="$found_vservers"
44 if ! vservers_exist "$vsnames" ; then
45 fatal "At least one of the vservers listed in vsnames ($vsnames) does not exist."
48 if [ -n "$vsinclude" ]; then
49 info "Using vservers '$vsnames'"
53 [ -z "$vsinclude" ] || warning 'vservers support disabled in backupninja.conf, vsincludes configuration lines will be ignored'
57 ### see if we can login ###
59 if [ "$testconnect" == "yes" ]; then
60 debug "ssh $sshoptions -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1'"
62 result=`ssh $sshoptions -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1'`
63 if [ "$result" != "1" ]; then
64 fatal "Can't connect to $desthost as $destuser."
66 debug "Connected to $desthost as $destuser successfully"
71 ### COMMAND-LINE MANGLING ###
73 duplicity_version="`duplicity --version | @AWK@ '{print $2}'`"
74 duplicity_major="`echo $duplicity_version | @AWK@ -F '.' '{print $1}'`"
75 duplicity_minor="`echo $duplicity_version | @AWK@ -F '.' '{print $2}'`"
76 duplicity_sub="`echo $duplicity_version | @AWK@ -F '.' '{print $3}'`"
78 # 1. duplicity >= 0.4.2 needs --sftp-command (NB: sftp does not support the -l option)
79 # 2. duplicity >= 0.4.3 replaces --ssh-command with --ssh-options, which:
80 # - is passed to scp and sftp commands by duplicity
81 # - has a special syntax we can not feed the command line with
82 # so we don't use it: since this version does not use the ssh command anymore,
83 # we keep compatibility with our previous config files by passing $sshoptions to
84 # --scp-command and --sftp-command ourselves
86 scpoptions="$sshoptions"
87 [ "$bandwidthlimit" == 0 ] || scpoptions="$scpoptions -l $bandwidthlimit"
89 execstr="$options --no-print-statistics "
91 # < 0.4.2 : only uses ssh and scp
92 if [ "$duplicity_major" -le 0 -a "$duplicity_minor" -le 4 -a "$duplicity_sub" -lt 2 ]; then
93 execstr="$execstr --scp-command 'scp $scpoptions' --ssh-command 'ssh $sshoptions' "
94 # >= 0.4.2 : also uses sftp, --sftp-command option is now supported
96 sftpoptions="$sshoptions"
97 # == 0.4.2 : uses ssh, scp and sftp
98 if [ "$duplicity_major" -eq 0 -a "$duplicity_minor" -eq 4 -a "$duplicity_sub" -eq 2 ]; then
99 execstr="$execstr --scp-command 'scp $scpoptions' --sftp-command 'sftp $sftpoptions' --ssh-command 'ssh $sshoptions' "
100 # >= 0.4.3 : uses only scp and sftp, --ssh-command option is not supported anymore
102 execstr="$execstr --scp-command 'scp $scpoptions' --sftp-command 'sftp $sftpoptions' "
106 # deal with symmetric or asymmetric (public/private key pair) encryption
107 if [ -n "$encryptkey" ]; then
108 execstr="${execstr}--encrypt-key $encryptkey "
109 debug "Data will be encrypted with the GnuPG key $encryptkey."
111 debug "Data will be encrypted using symmetric encryption."
114 # deal with data signing
115 if [ "$sign" == yes ]; then
116 # duplicity is not able to sign data when using symmetric encryption
117 [ -n "$encryptkey" ] || fatal "The encryptkey option must be set when signing."
118 # if needed, initialize signkey to a value that is not empty (checked above)
119 [ -n "$signkey" ] || signkey="$encryptkey"
120 execstr="${execstr}--sign-key $signkey "
121 debug "Data will be signed will the GnuPG key $signkey."
123 debug "Data won't be signed."
126 # deal with GnuPG passphrase
127 [ -n "$password" ] || fatal "The password option must be set."
129 if [ "$keep" != "yes" ]; then
130 if [ "`echo $keep | tr -d 0-9`" == "" ]; then
133 execstr="${execstr}--remove-older-than $keep "
136 if [ "$incremental" == "no" ]; then
137 execstr="${execstr}--full "
140 execstr_serverpart="scp://$destuser@$desthost/$destdir"
141 execstr_clientpart="/"
148 for i in $exclude; do
149 str="${i//__star__/*}"
150 execstr="${execstr}--exclude '$str' "
154 for i in $include; do
155 [ "$i" != "/" ] || fatal "Sorry, you cannot use 'include = /'"
156 str="${i//__star__/*}"
157 execstr="${execstr}--include '$str' "
161 if [ $usevserver = yes ]; then
162 for vserver in $vsnames; do
163 for vi in $vsinclude; do
164 str="${vi//__star__/*}"
165 str="$VROOTDIR/$vserver$str"
166 execstr="${execstr}--include '$str' "
175 execstr=${execstr//\\*/\\\\\\*}
177 debug "duplicity $execstr --exclude '**' / $execstr_serverpart"
179 export PASSPHRASE=$password
180 output=`nice -n $nicelevel \
182 "duplicity $execstr --exclude '**' / $execstr_serverpart 2>&1"`
184 if [ $code -eq 0 ]; then
186 info "Duplicity finished successfully."
189 fatal "Duplicity failed."