[backup] Add backup.sh

Simple script to transfer a directory with rsync, with a few options.

backup/README

@@ -1,3 +1,15 @@
+# backup.sh #
+
+backup.sh is a simple script that transfers a single directory (your
+home directory, by default) to a remote host, using rsync. You can
+specify exclude patterns in a file (~/.backup-excludes by default).
+The transfer will be reattempted until it succeed.
+
+Edit the script to configure the protocol, host, directories, etc.
+
+
+# backup_sites_mysql.sh #
+
 The script backup_sites_mysql.sh is designed to save websites data files
 and the associated MySQL databases.
 

backup/backup.sh

@@ -0,0 +1,34 @@
+#!/bin/sh
+#
+# backup.sh, Copyright © 2011 Matteo Cypriani <mcy@lm7.fr>
+#
+# This program is free software. It comes without any warranty, to
+# the extent permitted by applicable law. You can redistribute it
+# and/or modify it under the terms of the Do What The Fuck You Want
+# To Public License, Version 2, as published by Sam Hocevar. See
+# http://sam.zoy.org/wtfpl/COPYING for more details.
+#
+# Transfers a single directory to a remote host using rsync. The
+# transfer is retried until it succeeds.
+
+# Any of the protocol supported by rsync, with the "://" (blank to use
+# SSH):
+PROTO=rsync://
+# Remote backup host:
+HOST=vicious
+# Destination of the backup on the remote host:
+REMOTE_DIR=/backup
+
+# Local directory to backup:
+LOCAL_DIR="$HOME"
+# File where the excludes patterns are stored (one per line):
+EXCLUDES="$HOME/.backup-excludes"
+# Blank to keep the locally deleted files on the remote host (you can
+# also set to --delete-after or --delete-before):
+DELETE="--delete"
+
+false
+until [ $? -eq 0 ] ; do
+	rsync -av ${DELETE} --exclude-from="$EXCLUDES" \
+		"$LOCAL_DIR" ${PROTO}://${HOST}:"$REMOTE_DIR"
+done