Add backup using obnam

src/freedombone

 }
 
 function backup_directory_to_usb {
-  if [[ $BACKUP_TYPE == 'rsync' ]]; then
+  if [[ $BACKUP_TYPE == 'obnam' ]]; then
+      echo "obnam backup -r $USB_MOUNT/backup/${2} ${1}" >> /usr/bin/$BACKUP_SCRIPT_NAME
+  else
       # For rsyncrypto usage see http://archive09.linux.com/feature/125322
       echo "rsyncrypto -v -r ${1} $USB_MOUNT/backup/${2} $USB_MOUNT/backup/${2}.keys $BACKUP_CERTIFICATE" >> /usr/bin/$BACKUP_SCRIPT_NAME
   fi
   if grep -Fxq "create_backup_script" $COMPLETION_FILE; then
       return
   fi
-  apt-get -y install rsyncrypto cryptsetup libgfshare-bin
+  apt-get -y install rsyncrypto cryptsetup libgfshare-bin obnam
 
   get_mariadb_password
   get_mariadb_gnusocial_admin_password
   echo "    mkdir ${1}" >> /usr/bin/$RESTORE_SCRIPT_NAME
   echo '  fi' >> /usr/bin/$RESTORE_SCRIPT_NAME
 
-  if [[ $BACKUP_TYPE == 'rsync' ]]; then
+  if [[ $BACKUP_TYPE == 'obnam' ]]; then
+      echo "  obnam restore -r $USB_MOUNT/backup/${2} --to ${1}" >> /usr/bin/$RESTORE_SCRIPT_NAME
+  else
       echo "  rsyncrypto -v -d -r $USB_MOUNT/backup/${2} ${1} $USB_MOUNT/backup/${2}.keys $BACKUP_CERTIFICATE" >> /usr/bin/$RESTORE_SCRIPT_NAME
   fi
 }
   if grep -Fxq "create_restore_script" $COMPLETION_FILE; then
       return
   fi
-  apt-get -y install rsyncrypto cryptsetup
+  apt-get -y install rsyncrypto cryptsetup obnam
 
   get_mariadb_password
   get_mariadb_gnusocial_admin_password
 }
 
 function backup_directory_to_friend {
-  if [[ $BACKUP_TYPE == 'rsync' ]]; then
+  if [[ $BACKUP_TYPE == 'obnam' ]]; then
+      echo -n 'obnam backup -r $SERVER_DIRECTORY/backup/' >> /usr/bin/$BACKUP_SCRIPT_NAME
+      echo "${2} ${1}" >> /usr/bin/$BACKUP_SCRIPT_NAME
+  else
       # For rsyncrypto usage see http://archive09.linux.com/feature/125322
       echo -n "rsyncrypto -v -r ${1} " >> /usr/bin/$BACKUP_TO_FRIENDS_SCRIPT_NAME
       echo -n '$SERVER_DIRECTORY/backup/' >> /usr/bin/$BACKUP_TO_FRIENDS_SCRIPT_NAME
       return
   fi
 
-  apt-get -y install rsyncrypto sshpass
+  apt-get -y install rsyncrypto sshpass obnam
 
   get_mariadb_password
   get_mariadb_gnusocial_admin_password
   echo "  if [ ! -d ${1} ]; then" >> /usr/bin/$RESTORE_FROM_FRIEND_SCRIPT_NAME
   echo "    mkdir ${1}" >> /usr/bin/$RESTORE_FROM_FRIEND_SCRIPT_NAME
   echo '  fi' >> /usr/bin/$RESTORE_FROM_FRIEND_SCRIPT_NAME
-  if [[ $BACKUP_TYPE == 'rsync' ]]; then
+  if [[ $BACKUP_TYPE == 'obnam' ]]; then
+      echo -n '  obnam restore -r $SERVER_DIRECTORY/backup/' >> /usr/bin/$RESTORE_FROM_FRIEND_SCRIPT_NAME
+      echo "${2} --to ${1}" >> /usr/bin/$RESTORE_FROM_FRIEND_SCRIPT_NAME
+  else
       echo -n '  rsyncrypto -v -d -r $SERVER_DIRECTORY/backup/' >> /usr/bin/$RESTORE_FROM_FRIEND_SCRIPT_NAME
       echo -n "${2} ${1} " >> /usr/bin/$RESTORE_FROM_FRIEND_SCRIPT_NAME
       echo -n '$SERVER_DIRECTORY/backup/' >> /usr/bin/$RESTORE_FROM_FRIEND_SCRIPT_NAME
       return
   fi
 
-  apt-get -y install rsyncrypto sshpass
+  apt-get -y install rsyncrypto sshpass obnam
 
   get_mariadb_password
   get_mariadb_gnusocial_admin_password
       echo '    exit 981' >> /usr/bin/$RESTORE_FROM_FRIEND_SCRIPT_NAME
       echo '  fi' >> /usr/bin/$RESTORE_FROM_FRIEND_SCRIPT_NAME
       restore_directory_from_friend /root/tempowncloud2 owncloud2
-      echo -n '  rsyncrypto -v -d -r $SERVER_DIRECTORY/backup/owncloud2 /root/tempowncloud2 $SERVER_DIRECTORY/backup/owncloud2.keys ' >> /usr/bin/$RESTORE_FROM_FRIEND_SCRIPT_NAME
-      echo "$BACKUP_CERTIFICATE" >> /usr/bin/$RESTORE_FROM_FRIEND_SCRIPT_NAME
       echo "  cp -r /root/tempowncloud2/remoterestore/backup/owncloud2/owncloud/* /etc/owncloud/" >> /usr/bin/$RESTORE_FROM_FRIEND_SCRIPT_NAME
       echo '  if [ ! "$?" = "0" ]; then' >> /usr/bin/$RESTORE_FROM_FRIEND_SCRIPT_NAME
       echo '    exit 982' >> /usr/bin/$RESTORE_FROM_FRIEND_SCRIPT_NAME