Remove support for duplicity < 0.4.4. Even etch-backports has a newer one.

ChangeLog

@@ -6,6 +6,8 @@ version 0.9.9 -- UNRELEASED
 	dup:
 	 . Use --tempdir option rather than TMPDIR environment variable.
 	   (Closes Roundup bug #598)
+	 . Remove support for duplicity < 0.4.4. Even etch-backports has
+	   a newer one.
 	postgresql:
 	 . Support various pg_dump formats in addition to pg_dumpall.
 	   Thanks to Jacob Anawalt <jlanawalt@gmail.com> for the patch.

handlers/dup.in

@@ -2,7 +2,7 @@
 # vim: set filetype=sh sw=3 sts=3 expandtab autoindent:
 #
 # duplicity script for backupninja
-# requires duplicity
+# requires duplicity >= 0.4.4
 #
 
 getconf options
@@ -106,35 +106,14 @@ 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}'`"
 
-### 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 $sshoptions to --scp-command and
-#    --sftp-command ourselves
-
+### ssh/scp/sftp options (duplicity < 0.4.3 is unsupported)
 scpoptions="$sshoptions"
 if [ "$bandwidthlimit" != 0 ]; then
    [ -z "$desturl" ] || warning 'The bandwidthlimit option is not used when desturl is set.'
    scpoptions="$scpoptions -l $bandwidthlimit"
 fi
-
-# < 0.4.2 : only uses ssh and scp
-if [ "$duplicity_major" -le 0 -a "$duplicity_minor" -le 4 -a "$duplicity_sub" -lt 2 ]; then
-   execstr_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 "$duplicity_sub" -eq 2 ]; then
-      execstr_options="${execstr_options} --scp-command 'scp $scpoptions' --sftp-command 'sftp $sftpoptions' --ssh-command 'ssh $sshoptions'"
-   # >= 0.4.3 : uses only scp and sftp, --ssh-command option is not supported anymore
-   else
 execstr_options="${execstr_options} --scp-command 'scp $scpoptions' --sftp-command 'sftp $sftpoptions'"
-   fi
-fi
 
 ### Symmetric or asymmetric (public/private key pair) encryption
 if [ -n "$encryptkey" ]; then
@@ -162,12 +141,7 @@ fi
 # full backup.
 # If incremental==no, force a full backup anyway.
 if [ "$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
 else
    # we're in incremental mode
    if [ "$increments" != "keep" ]; then
@@ -210,10 +184,6 @@ if [ "$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
@@ -268,7 +238,6 @@ fi
 ### Cleanup commands (duplicity >= 0.4.4)
 
 # cleanup
-if [ "$duplicity_major" -ge 0 -a "$duplicity_minor" -ge 4 -a "$duplicity_sub" -ge 4 ]; then
 debug "duplicity cleanup --force $execstr_options $execstr_serverpart"
 if [ ! $test ]; then
    export PASSPHRASE=$password
@@ -285,11 +254,9 @@ if [ "$duplicity_major" -ge 0 -a "$duplicity_minor" -ge 4 -a "$duplicity_sub" -g
       warning "Duplicity cleanup failed."
    fi
 fi
-fi
 
 # remove-older-than
 if [ "$keep" != "yes" ]; then
-   if [ "$duplicity_major" -ge 0 -a "$duplicity_minor" -ge 4 -a "$duplicity_sub" -ge 4 ]; then
    debug "duplicity remove-older-than $keep --force $execstr_options $execstr_serverpart"
    if [ ! $test ]; then
       export PASSPHRASE=$password
@@ -307,7 +274,6 @@ if [ "$keep" != "yes" ]; then
       fi
    fi
 fi
-fi
 
 ### Backup command
 debug "duplicity $execstr_command $execstr_options $execstr_source --exclude '**' / $execstr_serverpart"