support new duplicity versions:

 - general cleanup of dup handler
 - support remove-older-than command
 - also run "duplicity cleanup" before anything else, for safety reasons
 - migrated full/incremental backup switch to new syntax
ChangeLog: removed trailing space

2 files changed, 181 insertions, 117 deletions

diff --git a/ChangeLog b/ChangeLog
index 0c7e6fc..9c7770d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,9 +2,17 @@ version 0.9.6 -- unreleased
     backupninja changes
 
     handler changes
-	rdiff: 
+	dup:
+	 . General cleanup
+	 . Better support for new duplicity (>= 0.4.4) command line syntax:
+	   run remove-older-than when $keep is not set to yes (Closes: #458816),
+	   and run "duplicity cleanup" before any other duplicity command; both
+	   only trigger a warning on failure, since they should not stop backups
+	   from being done. Also migrated full/incremental backup switch to the
+	   new syntax.
+	rdiff:
 	 . Fixed ignore_version default value missing
-	 . Add patch from Matthew Palmer to rdiff handler to incorporate sshoptions 
+	 . Add patch from Matthew Palmer to rdiff handler to incorporate sshoptions
 	   into options via remote-schema not already specified (Closes: #424639)
 	wget:
 	 . New handler from rhatto designed to incrementally pull content from
@@ -38,7 +46,7 @@ version 0.9.5 -- December 2, 2007
 	   to be correct, also set TLS to be the default over SSL (Closes: Trac#13)
 	maildir:
 	 . Added an examples file (Closes: Trac#23)
-	 . Applied patch from Anarcat that fixes the cp/mkdir calls to not use GNU 
+	 . Applied patch from Anarcat that fixes the cp/mkdir calls to not use GNU
 	   coreutils options, as well as some bashisms (Closes: Trac#24)
 	 . Fix test mode (Closes: Trac#25)
         mysql:
@@ -48,8 +56,8 @@ version 0.9.5 -- December 2, 2007
 	   the data from a backup, but still backup the table structure. This is very
 	   useful in cases where tables contain large amounts of cache data. See the
 	   example.mysql for options, thanks Daniel Bonniot (Closes: #408829)
-	 . Enhance code for selecting databases by asking MySQL not to give us the 
-	   header (-N), to not draw pretty boxes around the output (-B), send the query 
+	 . Enhance code for selecting databases by asking MySQL not to give us the
+	   header (-N), to not draw pretty boxes around the output (-B), send the query
 	   via -e instead of a pipe and ensure MySQL listens to -B. Thanks to
 	   Matthew Palmer (Closes: #452039).
 	pgsql:
@@ -83,7 +91,7 @@ version 0.9.5 -- December 2, 2007
 	 . Fixed example in example.sys to detail the __star__ in partitionsfile and
 	   note why its necessary (Closes: #409192)
 	 . Force C locale for sfdisk to ensure english words are found in grep
-	 . Make directory where output is placed configurable, and create the parent dir 
+	 . Make directory where output is placed configurable, and create the parent dir
 	   if it doesn't exist (Closes: Trac#1)
     ninjareport
 	 . Added first draft of method to aggregate reports from many servers into
@@ -94,7 +102,7 @@ version 0.9.5 -- December 2, 2007
     fixed 'make install' bug that failed if /etc/backup.d already existed
     changed spaces to tabs in Makefile.am
     updated redhat spec file (thanks Adam Monsen)
-    
+
 version 0.9.4 -- October 6th, 2006
     backupninja changes
 	 . Fixed bug in toint(), and thus isnow(), which caused it
@@ -103,7 +111,7 @@ version 0.9.4 -- October 6th, 2006
 	 . Add admingroup option to configuration to allow a group that can
 	   read/write configurations (instead of only allowing root). Checks
 	   and complains about group-readable files only when the group differs
-	   from the one in the configuration file (default is root as before). 
+	   from the one in the configuration file (default is root as before).
 	   Thanks to Martin Krafft for the patch (Closes: #370396).
 	 . When determining which backup actions to make, find now follows
 	   symlinks for $configdirectory
@@ -117,7 +125,7 @@ version 0.9.4 -- October 6th, 2006
 	Added rsnap handler:
 	 . rotated rsync snapshops
 	 . code from paulv@bikkel.org
-	Added rub handler: 
+	Added rub handler:
 	 . alternative to rsnap
 	 . code from rhatto@riseup.net
 	mysql:
@@ -133,7 +141,7 @@ version 0.9.4 -- October 6th, 2006
 	 . Fixed shell expansion, thanks Thomas Kotzian (Closes: #363297)
 	 . postgres user UID is now the one from inside the vserver if necessary
 	 . Compress now happens in-line to save some disk space (Closes: #370778)
-	 . $PGSQLUSER is used instead of hardcoding user 'postgres' (although this is the default) 
+	 . $PGSQLUSER is used instead of hardcoding user 'postgres' (although this is the default)
 	svn:
 	 . Fixed inversed vsname emptiness check
 	rdiff:
@@ -176,7 +184,7 @@ version 0.9.4 -- October 6th, 2006
 	vserver:
 	 . init_vservers: fixed Debian bug #351083 (improper readlink syntax)
 	 . found_vservers: escaped special grep repetition character +
-	 . forced mktemp to use a template with a name to be more compatible with 
+	 . forced mktemp to use a template with a name to be more compatible with
 	   different versions of mktemp, thanks anarcat
     ninjahelper changes
 	 . Recursively ignore subdirs in /etc/backup.d (Closes: #361102)
@@ -193,7 +201,7 @@ version 0.9.4 -- October 6th, 2006
     changed /etc/backup.d permissions to 0770 (for admingroup)
     minor documentation fixes
     improved RPM build process allowing 'make rpm-package' and 'make
-    srpm-package' targets, also fixes permissions on man directories, 
+    srpm-package' targets, also fixes permissions on man directories,
     cleans up RPM-related files during distclean, and adds default
     EDITOR for "autogen.sh -f" if none is set. (thanks Robert Napier)
 
@@ -242,7 +250,7 @@ version 0.9.3 -- February 1st, 2006
 	 . init_vservers: warn if vservers are enabled but no vserver is found
 	 . new function: vservers_exist
     known bugs:
-        easydialog: 
+        easydialog:
          . formDisplay does not return exit status.
 
 version 0.9.2 -- December 29, 2005
@@ -256,7 +264,7 @@ version 0.9.2 -- December 29, 2005
         trac:
             . mkdir subdirectory problem fixed
         duplicity:
-            . globbing support fixed in include and exclude options 
+            . globbing support fixed in include and exclude options
             . different signing and encrypting key support added
             . fixed erroneous comments in example.dup about the way
               GnuPG-related options are used
@@ -270,12 +278,12 @@ version 0.9.2 -- December 29, 2005
         rdiff-backup:
             . used to expand '*' in default source directories
             . the "Cancel" buttons used to have a weird behaviour
-            . updated to include Vserver selection 
+            . updated to include Vserver selection
         pgsql:
-            . forbid the user to choose an empty database set 
+            . forbid the user to choose an empty database set
             . "Cancel" button now does what it is meant to do
         mysql:
-            . enhanced for vserver support 
+            . enhanced for vserver support
             . now able to select databases and dump directory
         duplicity:
             . new handler added (with Vserver support)
@@ -291,20 +299,20 @@ version 0.9.1 -- November 05 2005
     changed subversion handler to use svnadmin hotcopy instead of
             the unsupported hot-copy.py script, which was moved in Debian
     update rdiff ninjahelper
-            now detects and auto-install rdiff-backup on the remote 
+            now detects and auto-install rdiff-backup on the remote
             machine if possible, also tests the remote backup directory
             and offers to create it if it doesn't exist
 
 version 0.9 -- October 19 2005
     *** IMPORTANT CHANGE, UPGRADE AT ONCE ***
-     fixed insecure temporary file creation 
+     fixed insecure temporary file creation
     *****************************************
     removed erroneous magic file marker in pgsql handler
     fixed incorrect find positional
     changed direct grep of /etc/passwd to getent passwd.
     rdiff helper has much better information on failed ssh attempt
         (patch from cmccallum@thecsl.org).
-    rdiff handler now supports remote source and local dest. 
+    rdiff handler now supports remote source and local dest.
         (patch from cmccallum@thecsl.org).
     man pages are greatly improved.
 
@@ -353,7 +361,7 @@ version 0.6 -- June 16 2005
         slapcat), restart, passwordfile and binddn. Default backup method
         is set to ldapsearch as this is safer
     ******************************************************************
-    NOTE: to get the previous default behavior with the ldap handler, 
+    NOTE: to get the previous default behavior with the ldap handler,
     you must set "method = slapcat". The new default is ldapsearch.
     ******************************************************************
     implemented fix so that the main script will echo fatal errors rather
@@ -369,10 +377,10 @@ version 0.6 -- June 16 2005
         added "testconnect" option
         added "sshoptions" option (will be passed to ssh/scp)
         added "bandwidthlimit" option
-    example.dup example config file for duplicity handler 
+    example.dup example config file for duplicity handler
     added trac (http://trac.edgewall.com/) environment handler (thanks Charles Lepple!)
     added configfile option to mysql handler
-        the default is /etc/mysql/debian.cnf. with this, 
+        the default is /etc/mysql/debian.cnf. with this,
         sqldump doesn't need dbusername. (hotcopy still does).
     fixed bug in mysql handler which caused some passwords to not work.
         (.my.cnf files now have double quotes around password)
@@ -380,15 +388,15 @@ version 0.6 -- June 16 2005
 
 version 0.5 -- April 12 2005
     rdiff handler works when remote sshd has a banner
-    rdiff handler supports local dest 
+    rdiff handler supports local dest
     logfile is created if it doesn't exist
-    added "when = hourly" 
+    added "when = hourly"
     added optional 'nicelevel' to rdiff handler
     fixed bug where actions were not run in numeric order.
     improved 'when' parsing.
 
 version 0.4.4 -- March 18 2005
-    results of handlers are now read line by line. 
+    results of handlers are now read line by line.
     changes to rdiff handler: added "options", and "keep" is
         not necessarily days now (ie, it will pass straight through to
         rdiff-backup if the keep has a unit on it, otherwise it adds the 'D').
@@ -396,7 +404,7 @@ version 0.4.4 -- March 18 2005
     added maildir handler (very specialized handler)
     added --run option (runs the specified action file)
     improved sys handler, now uses hwinfo
-    added subversion hotbackup handler, svn. 
+    added subversion hotbackup handler, svn.
     added PATH to cron.d file, which fixes file not found errors.
 
 version 0.4.2 -- Jan 6 2005
@@ -409,7 +417,7 @@ version 0.4.1 -- Jan 3 2005
     fixed major bug, 'when' actually works now.
     replaced debug function with debug, info, warning, error, fatal.
     added --now option to force all actions to be performed now.
-    
+
 version 0.4 -- Dec 26 2004
     added "when" option, so that all configs can specify when
         they are to be run.
@@ -417,7 +425,7 @@ version 0.4 -- Dec 26 2004
     added .sys handler (hardware, packages, partitions).
 
 version 0.3.4 -- Dec 8 2004
-    fixed numerical variable quoting compatibility with older wc    
+    fixed numerical variable quoting compatibility with older wc
     fixed stderr redirect bug
     some comments in example.rdiff
 
@@ -440,7 +448,7 @@ version 0.3.1 -- Sept 5 2004
     force only root can read /etc/backup.d/*
     fixed missing equals symbols in example.rdiff
     changed backupninja executable to be /usr/sbin rather than /usr/bin
-    
+
 version 0.3 -- Oct 20 2004
     ** IMPORTANT ** all config files are now ini style, not apache style
     rewrote all scripts in bash for portability
@@ -452,7 +460,7 @@ version 0.2 -- Oct 14 2004
     fixed bug: removed printr of excludes (!)
     added support for changing the user/group in rdiff sources.
     added support for .mysql config files.
-    
+
 version 0.1 -- Oct 8 2004
-    initial release 
+    initial release
 
diff --git a/handlers/dup.in b/handlers/dup.in
index 055531f..00f4b58 100644
--- a/handlers/dup.in
+++ b/handlers/dup.in
@@ -31,11 +31,13 @@ getconf destdir
 getconf destuser
 destdir=${destdir%/}
 
-[ "$destdir" != "" ] || fatal "Destination directory not set"
-[ "$include" != "" ] || fatal "No source includes specified"
+### SANITY CHECKS ##############################################################
 
-### vservers stuff ###
+[ -n "$destdir" ]  || fatal "Destination directory not set"
+[ -n "$include" ]  || fatal "No source includes specified"
+[ -n "$password" ] || fatal "The password option must be set."
 
+### VServers
 # If vservers are configured, check that the ones listed in $vsnames do exist.
 local usevserver=no
 if [ $vservers_are_available = yes ]; then
@@ -54,109 +56,132 @@ else
    [ -z "$vsinclude" ] || warning 'vservers support disabled in backupninja.conf, vsincludes configuration lines will be ignored'
 fi
 
-
-### see if we can login ###
-
+### See if we can login on $desthost
 if [ "$testconnect" == "yes" ]; then
-    debug "ssh $sshoptions -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1'"
-    if [ ! $test ]; then
-	result=`ssh $sshoptions -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1'`
-	if [ "$result" != "1" ]; then
-	    fatal "Can't connect to $desthost as $destuser."
-	else
-	    debug "Connected to $desthost as $destuser successfully"
-	fi
-    fi
+   debug "ssh $sshoptions -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1'"
+   if [ ! $test ]; then
+      result=`ssh $sshoptions -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1'`
+      if [ "$result" != "1" ]; then
+	 fatal "Can't connect to $desthost as $destuser."
+      else
+	 debug "Connected to $desthost as $destuser successfully"
+      fi
+   fi
 fi
 
-### COMMAND-LINE MANGLING ###
+### COMMAND-LINE MANGLING ######################################################
+
+### initialize $execstr*
+execstr_command=
+execstr_options="$options --no-print-statistics"
+execstr_source=
+execstr_serverpart="scp://$destuser@$desthost/$destdir"
 
+### duplicity version
 duplicity_version="`duplicity --version | @AWK@ '{print $2}'`"
 duplicity_major="`echo $duplicity_version | @AWK@ -F '.' '{print $1}'`"
 duplicity_minor="`echo $duplicity_version | @AWK@ -F '.' '{print $2}'`"
 duplicity_sub="`echo $duplicity_version | @AWK@ -F '.' '{print $3}'`"
 
-# 1. duplicity >= 0.4.2 needs --sftp-command (NB: sftp does not support the -l option)
-# 2. duplicity >= 0.4.3 replaces --ssh-command with --ssh-options, which:
-#      - is passed to scp and sftp commands by duplicity
-#      - has a special syntax we can not directly feed the command line with
-#        (e.g. "IdentityFile=/root/.ssh/id_dsa_backupninja Port=2222", without the -o)
-#    so we don't use it: since this version does not use the ssh command anymore,
-#    we keep compatibility with our previous config files by passing $sshoptions to
-#    --scp-command and --sftp-command ourselves
+### ssh/scp/sftp options
+# 1. duplicity >= 0.4.2 needs --sftp-command
+#    (NB: sftp does not support the -l option)
+# 2. duplicity 0.4.3 to 0.4.9 replace --ssh-command with --ssh-options, which is
+#    passed to scp and sftp commands by duplicity. We don't use it: since this
+#    version does not use the ssh command anymore, we keep compatibility with
+#    our previous config files by passing $sshoptions to --scp-command and
+#    --sftp-command ourselves
 
 scpoptions="$sshoptions"
 [ "$bandwidthlimit" == 0 ] || scpoptions="$scpoptions -l $bandwidthlimit"
 
-execstr="$options --no-print-statistics "
-
 # < 0.4.2 : only uses ssh and scp
 if [ "$duplicity_major" -le 0 -a "$duplicity_minor" -le 4 -a "$duplicity_sub" -lt 2 ]; then
-   execstr="$execstr --scp-command 'scp $scpoptions' --ssh-command 'ssh $sshoptions' "
+   execstr_options="${execstr_options} --scp-command 'scp $scpoptions' --ssh-command 'ssh $sshoptions'"
 # >= 0.4.2 : also uses sftp, --sftp-command option is now supported
 else
    sftpoptions="$sshoptions"
    # == 0.4.2 : uses ssh, scp and sftp
    if [ "$duplicity_major" -eq 0 -a "$duplicity_minor" -eq 4 -a "$duplicity_sub" -eq 2 ]; then
-      execstr="$execstr --scp-command 'scp $scpoptions' --sftp-command 'sftp $sftpoptions' --ssh-command 'ssh $sshoptions' "
+      execstr_options="${execstr_options} --scp-command 'scp $scpoptions' --sftp-command 'sftp $sftpoptions' --ssh-command 'ssh $sshoptions'"
    # >= 0.4.3 : uses only scp and sftp, --ssh-command option is not supported anymore
    else
-      execstr="$execstr --scp-command 'scp $scpoptions' --sftp-command 'sftp $sftpoptions' "
+      execstr_options="${execstr_options} --scp-command 'scp $scpoptions' --sftp-command 'sftp $sftpoptions'"
    fi
 fi
 
-# deal with symmetric or asymmetric (public/private key pair) encryption
+### Symmetric or asymmetric (public/private key pair) encryption
 if [ -n "$encryptkey" ]; then
-    execstr="${execstr}--encrypt-key $encryptkey "
-    debug "Data will be encrypted with the GnuPG key $encryptkey."
+   execstr_options="${execstr_options} --encrypt-key $encryptkey"
+   debug "Data will be encrypted with the GnuPG key $encryptkey."
 else
-    debug "Data will be encrypted using symmetric encryption."
+   debug "Data will be encrypted using symmetric encryption."
 fi
 
-# deal with data signing
+### Data signing (or not)
 if [ "$sign" == yes ]; then
-    # duplicity is not able to sign data when using symmetric encryption
-    [ -n "$encryptkey" ] || fatal "The encryptkey option must be set when signing."
-    # if needed, initialize signkey to a value that is not empty (checked above)
-    [ -n "$signkey" ] || signkey="$encryptkey"
-    execstr="${execstr}--sign-key $signkey "
-    debug "Data will be signed will the GnuPG key $signkey."
+   # duplicity is not able to sign data when using symmetric encryption
+   [ -n "$encryptkey" ] || fatal "The encryptkey option must be set when signing."
+   # if needed, initialize signkey to a value that is not empty (checked above)
+   [ -n "$signkey" ] || signkey="$encryptkey"
+   execstr_options="${execstr_options} --sign-key $signkey"
+   debug "Data will be signed will the GnuPG key $signkey."
 else
-    debug "Data won't be signed."
+   debug "Data won't be signed."
 fi
 
-# deal with GnuPG passphrase
-[ -n "$password" ] || fatal "The password option must be set."
-
-if [ "$keep" != "yes" ]; then
-    if [ "`echo $keep | tr -d 0-9`" == "" ]; then
-	keep="${keep}D"
-    fi
-    execstr="${execstr}--remove-older-than $keep "
+### Incremental or full backup mode
+# If incremental==yes, use the default duplicity behaviour: perform an
+# incremental backup if old signatures can be found, else switch to
+# full backup.
+# If incremental==no, force a full backup anyway.
+if [ "$incremental" == "no" ]; then
+   # before 0.4.4, full was an option and not a command
+   if [ "$duplicity_major" -le 0 -a "$duplicity_minor" -le 4 -a "$duplicity_sub" -lt 4 ]; then   
+      execstr_options="${execstr_options} --full"
+   else
+      execstr_command="full"
+   fi
 fi
 
-if [ "$incremental" == "no" ]; then
-    execstr="${execstr}--full "
+### Temporary directory
+precmd=
+if [ -n "$tmpdir" ]; then
+   if [ ! -d "$tmpdir" ]; then
+      info "Temporary directory ($tmpdir) does not exist, creating it."
+      mkdir -p "$tmpdir"
+      [ $? -eq 0 ] || fatal "Could not create temporary directory ($tmpdir)."
+   fi
+   info "Using $tmpdir as TMPDIR"
+   precmd="${precmd}TMPDIR=$tmpdir "
 fi
 
-execstr_serverpart="scp://$destuser@$desthost/$destdir"
-execstr_clientpart="/"
+### Cleanup old backup sets (or not)
+if [ "$keep" != "yes" ]; then
+   if [ "`echo $keep | tr -d 0-9`" == "" ]; then
+      keep="${keep}D"
+   fi
+   # before 0.4.4, remove-older-than was an option and not a command
+   if [ "$duplicity_major" -le 0 -a "$duplicity_minor" -le 4 -a "$duplicity_sub" -lt 4 ]; then
+      execstr_options="${execstr_options} --remove-older-than $keep"
+   fi
+fi
 
-### SOURCE ###
+### Source
 
 set -o noglob
 
 # excludes
 for i in $exclude; do
    str="${i//__star__/*}"
-   execstr="${execstr}--exclude '$str' "
+   execstr_source="${execstr_source} --exclude '$str'"
 done
-	
-# includes 
+
+# includes
 for i in $include; do
    [ "$i" != "/" ] || fatal "Sorry, you cannot use 'include = /'"
    str="${i//__star__/*}"
-   execstr="${execstr}--include '$str' "
+   execstr_source="${execstr_source} --include '$str'"
 done
 
 # vsincludes
@@ -165,43 +190,74 @@ if [ $usevserver = yes ]; then
       for vi in $vsinclude; do
 	 str="${vi//__star__/*}"
 	 str="$VROOTDIR/$vserver$str"
-	 execstr="${execstr}--include '$str' "
+	 execstr_source="${execstr_source} --include '$str'"
       done
    done
 fi
 
 set +o noglob
 
-### deal with tmpdir ###
-precmd=
-if [ -n "$tmpdir" ]; then
-   if [ ! -d "$tmpdir" ]; then
-      info "Temporary directory ($tmpdir) does not exist, creating it."
-      mkdir -p "$tmpdir"
-      [ $? -eq 0 ] || fatal "Could not create temporary directory ($tmpdir)."
+### EXECUTE ####################################################################
+
+execstr_source=${execstr_source//\\*/\\\\\\*}
+
+### Cleanup commands (duplicity >= 0.4.4)
+
+# cleanup
+if [ "$duplicity_major" -ge 0 -a "$duplicity_minor" -ge 4 -a "$duplicity_sub" -ge 4 ]; then
+   debug "$precmd duplicity cleanup $execstr_options $execstr_serverpart"
+   if [ ! $test ]; then
+      export PASSPHRASE=$password
+      output=`nice -n $nicelevel \
+         su -c \
+         "$precmd duplicity cleanup $execstr_options $execstr_serverpart 2>&1"`
+      exit_code=$?
+      if [ $exit_code -eq 0 ]; then
+	 debug $output
+	 info "Duplicity cleanup finished successfully."
+      else
+	 debug $output
+	 warning "Duplicity cleanup failed."
+      fi
    fi
-   info "Using $tmpdir as TMPDIR"
-   precmd="${precmd}TMPDIR=$tmpdir "
 fi
 
-### EXECUTE ###
-
-execstr=${execstr//\\*/\\\\\\*}
+# remove-older-than
+if [ "$keep" != "yes" ]; then
+   if [ "$duplicity_major" -ge 0 -a "$duplicity_minor" -ge 4 -a "$duplicity_sub" -ge 4 ]; then
+      debug "$precmd duplicity remove-older-than $keep $execstr_options $execstr_serverpart"
+      if [ ! $test ]; then
+         export PASSPHRASE=$password
+	 output=`nice -n $nicelevel \
+                   su -c \
+                      "$precmd duplicity remove-older-than $keep $execstr_options $execstr_serverpart 2>&1"`
+	 exit_code=$?
+	 if [ $exit_code -eq 0 ]; then
+	    debug $output
+	    info "Duplicity remove-older-than finished successfully."
+	 else
+	    debug $output
+	    warning "Duplicity remove-older-than failed."
+	 fi
+      fi
+   fi
+fi
 
-debug "$precmd duplicity $execstr --exclude '**' / $execstr_serverpart"
+### Backup command
+debug "$precmd duplicity $execstr_command $execstr_options $execstr_source --exclude '**' / $execstr_serverpart"
 if [ ! $test ]; then
-        export PASSPHRASE=$password
-	output=`nice -n $nicelevel \
-                  su -c \
-                    "$precmd duplicity $execstr --exclude '**' / $execstr_serverpart 2>&1"`
-	code=$?
-	if [ $code -eq 0 ]; then
-		debug $output
-		info "Duplicity finished successfully."
-	else
-		debug $output
-		fatal "Duplicity failed."
-	fi
-fi	
+   export PASSPHRASE=$password
+   output=`nice -n $nicelevel \
+             su -c \
+                "$precmd duplicity $execstr_command $execstr_options $execstr_source --exclude '**' / $execstr_serverpart 2>&1"`
+   exit_code=$?
+   if [ $exit_code -eq 0 ]; then
+      debug $output
+      info "Duplicity finished successfully."
+   else
+      debug $output
+      fatal "Duplicity failed."
+   fi
+fi
 
 return 0