From 94961a22c468a56a53158dea7b68ebdbe6b9ac06 Mon Sep 17 00:00:00 2001 From: Simon Ruderich Date: Wed, 29 Aug 2012 18:07:01 +0200 Subject: [PATCH] bin/srsync-incremental: Add, incremental backups with rsync. --- bin/srsync-incremental | 52 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100755 bin/srsync-incremental diff --git a/bin/srsync-incremental b/bin/srsync-incremental new file mode 100755 index 0000000..a76bf72 --- /dev/null +++ b/bin/srsync-incremental @@ -0,0 +1,52 @@ +#!/bin/sh + +# Perform incremental backups using rsync and hardlinks. +# +# Thanks to http://www.sanitarium.net/golug/rsync_backups_2010.html for the +# idea. + +# Copyright (C) 2011-2012 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 +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + + +if [ $# -lt 2 ]; then + echo "Usage: $0 " >&2 + echo + echo "Note: The target directory is the _first_ argument!" >&2 + exit 2 +fi + +cd "$1" || exit 1 +shift + +dest=`echo backup-*` +if [ "x$dest" != 'xbackup-*' ]; then + dest="`pwd`/`ls -1d backup-* | tail -n1`" +fi + +target=backup-`date '+%Y-%m-%d-%H-%M-%S'` + +if [ -d current ]; then + echo "Target directory 'current' already exists, aborting." >&2 + exit 1 +fi + +mkdir current +rsync \ + --verbose --human-readable \ + --archive --hard-links --numeric-ids --one-file-system \ + --link-dest="$dest" \ + "$@" current \ +&& mv current "$target" -- 2.45.2