vbd_dl

#! /bin/sh
# vbd_dl (Bourne shell script) -- Download and tar duplicity backups
#
# 1) Download duplicity backups from andromeda using rsync
# 2) make an incremental tarball of duplicity backups
#
# Doesn't use the date of the backup(s) to determine the tarball name, because
# there might be more than one set files.

host=vega
## source=andromeda.cacheboy.net:/backups/$host
source=tarantula:/backups/$host
dl_date=$(date +%Y%m%d)
tmpdir=/var/tmp/duplicty_$host
tardest=/media/usb/backup/$host

set -e

if [ -d $tardest ] ; then
  mkdir -p $tmpdir
  rsync -a $source/ $tmpdir

  # $tardest/list doesn't contain the name of the previous tarball, but it
  # doesn't need to because the new incremental tarball will be created with
  # files that aren't listed in $tardest/list
  if [ -f $tardest/list ] ; then cp -p $tardest/list $tardest/list.old ; fi
  tar cf $tardest/duplicity_$dl_date.tar --listed-incremental=$tardest/list "$@" -C $tmpdir .
else
  echo Error: $tardest not present
fi