# Thanks to http://www.sanitarium.net/golug/rsync_backups_2010.html for the
# idea.
-# Copyright (C) 2011-2013 Simon Ruderich
+# Copyright (C) 2011-2014 Simon Ruderich
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# along with this program. If not, see <http://www.gnu.org/licenses/>.
-set -e
+set -eu
if test "$#" -lt 2; then
echo "Usage: $0 <backups-directory> <arguments to rsync>" >&2
fi
-cd "$1" || exit 1
+cd "$1"
shift
# Get absolute path to last backup directory.
mkdir current
rsync \
--verbose --itemize-changes --human-readable \
- --archive --hard-links --numeric-ids --one-file-system \
+ --archive --hard-links --sparse --numeric-ids --one-file-system \
--link-dest="$dest" \
"$@" current \
|| {