initial revision:

basic packaging
    code import from Mike Rubel's page (see copyright)

.bzrignore

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+*.ex
+*.EX
+.bzr-builddeb

debian/changelog

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+remote-backup (1.0) unstable; urgency=low
+
+  * Initial Release.
+
+ -- Vincent Riquer <v.riquer@b2f-concept.com>  Thu, 19 Nov 2009 14:48:17 +0100

debian/compat

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+7

debian/control

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+Source: remote-backup
+Section: unknown
+Priority: extra
+Maintainer: Vincent Riquer <v.riquer@b2f-concept.com>
+Build-Depends: debhelper (>= 7)
+Standards-Version: 3.7.3
+Homepage: <insert the upstream URL, if relevant>
+
+Package: remote-backup
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}
+Description: <insert up to 60 chars description>
+ <insert long description, indented with spaces>

debian/copyright

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+This package was debianized by Vincent Riquer <v.riquer@b2f-concept.com> on
+Thu, 19 Nov 2009 14:48:17 +0100.
+
+It was downloaded from http://www.mikerubel.org/computers/rsync_snapshots/
+
+Upstream Author:
+
+    Mike Rubel <mrubel@caltech.edu>
+
+Copyright:
+
+    Copyright (C) 2004 Mike Rubel
+    Copyright (C) 2009 Vincent Riquer <v.riquer@b2f-concept.com>
+
+License:
+
+    This package 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 2 of the License, or
+    (at your option) any later version.
+
+    This package 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 package; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+
+On Debian systems, the complete text of the GNU General
+Public License can be found in `/usr/share/common-licenses/GPL'.
+
+The Debian packaging is (C) 2009, Vincent Riquer <v.riquer@b2f-concept.com> and
+is licensed under the GPL, see above.
+
+
+# Please also look if there are files or directories which have a
+# different copyright/license attached and list them here.

debian/dirs

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+usr/bin
+usr/sbin

debian/rules

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+#!/usr/bin/make -f
+# -*- makefile -*-
+# Sample debian/rules that uses debhelper.
+# This file was originally written by Joey Hess and Craig Small.
+# As a special exception, when this file is copied by dh-make into a
+# dh-make output file, you may use that output file without restriction.
+# This special exception was added by Craig Small in version 0.37 of dh-make.
+
+# Uncomment this to turn on verbose mode.
+#export DH_VERBOSE=1
+
+
+
+
+
+configure: configure-stamp
+configure-stamp:
+	dh_testdir
+	# Add here commands to configure the package.
+
+	touch configure-stamp
+
+
+build: build-stamp
+
+build-stamp: configure-stamp  
+	dh_testdir
+
+	# Add here commands to compile the package.
+	$(MAKE)
+	#docbook-to-man debian/remote-backup.sgml > remote-backup.1
+
+	touch $@
+
+clean: 
+	dh_testdir
+	dh_testroot
+	rm -f build-stamp configure-stamp
+
+	# Add here commands to clean up after the build process.
+	$(MAKE) clean
+
+	dh_clean 
+
+install: build
+	dh_testdir
+	dh_testroot
+	dh_clean -k 
+	dh_installdirs
+
+	# Add here commands to install the package into debian/remote-backup.
+	$(MAKE) DESTDIR=$(CURDIR)/debian/remote-backup install
+
+
+# Build architecture-independent files here.
+binary-indep: build install
+# We have nothing to do by default.
+
+# Build architecture-dependent files here.
+binary-arch: build install
+	dh_testdir
+	dh_testroot
+	dh_installchangelogs 
+	dh_installdocs
+	dh_installexamples
+#	dh_install
+#	dh_installmenu
+#	dh_installdebconf	
+#	dh_installlogrotate
+#	dh_installemacsen
+#	dh_installpam
+#	dh_installmime
+#	dh_python
+#	dh_installinit
+#	dh_installcron
+#	dh_installinfo
+	dh_installman
+	dh_link
+	dh_strip
+	dh_compress
+	dh_fixperms
+#	dh_perl
+#	dh_makeshlibs
+	dh_installdeb
+	dh_shlibdeps
+	dh_gencontrol
+	dh_md5sums
+	dh_builddeb
+
+binary: binary-indep binary-arch
+.PHONY: build clean binary-indep binary-arch binary install configure

remote-backup

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+#!/bin/bash
+# ----------------------------------------------------------------------
+# mikes handy rotating-filesystem-snapshot utility
+# ----------------------------------------------------------------------
+# this needs to be a lot more general, but the basic idea is it makes
+# rotating backup-snapshots of /home whenever called
+# ----------------------------------------------------------------------
+
+unset PATH	# suggestion from H. Milz: avoid accidental use of $PATH
+
+# ------------- system commands used by this script --------------------
+ID=/usr/bin/id;
+ECHO=/bin/echo;
+
+MOUNT=/bin/mount;
+RM=/bin/rm;
+MV=/bin/mv;
+CP=/bin/cp;
+TOUCH=/bin/touch;
+
+RSYNC=/usr/bin/rsync;
+
+
+# ------------- file locations -----------------------------------------
+
+MOUNT_DEVICE=/dev/hdb1;
+SNAPSHOT_RW=/root/snapshot;
+EXCLUDES=/usr/local/etc/backup_exclude;
+
+
+# ------------- the script itself --------------------------------------
+
+# make sure we're running as root
+if (( `$ID -u` != 0 )); then { $ECHO "Sorry, must be root.  Exiting..."; exit; } fi
+
+# attempt to remount the RW mount point as RW; else abort
+$MOUNT -o remount,rw $MOUNT_DEVICE $SNAPSHOT_RW ;
+if (( $? )); then
+{
+	$ECHO "snapshot: could not remount $SNAPSHOT_RW readwrite";
+	exit;
+}
+fi;
+
+
+# rotating snapshots of /home (fixme: this should be more general)
+
+# step 1: delete the oldest snapshot, if it exists:
+if [ -d $SNAPSHOT_RW/home/hourly.3 ] ; then			\
+$RM -rf $SNAPSHOT_RW/home/hourly.3 ;				\
+fi ;
+
+# step 2: shift the middle snapshots(s) back by one, if they exist
+if [ -d $SNAPSHOT_RW/home/hourly.2 ] ; then			\
+$MV $SNAPSHOT_RW/home/hourly.2 $SNAPSHOT_RW/home/hourly.3 ;	\
+fi;
+if [ -d $SNAPSHOT_RW/home/hourly.1 ] ; then			\
+$MV $SNAPSHOT_RW/home/hourly.1 $SNAPSHOT_RW/home/hourly.2 ;	\
+fi;
+
+# step 3: make a hard-link-only (except for dirs) copy of the latest snapshot,
+# if that exists
+if [ -d $SNAPSHOT_RW/home/hourly.0 ] ; then			\
+$CP -al $SNAPSHOT_RW/home/hourly.0 $SNAPSHOT_RW/home/hourly.1 ;	\
+fi;
+
+# step 4: rsync from the system into the latest snapshot (notice that
+# rsync behaves like cp --remove-destination by default, so the destination
+# is unlinked first.  If it were not so, this would copy over the other
+# snapshot(s) too!
+$RSYNC								\
+	-va --delete --delete-excluded				\
+	--exclude-from="$EXCLUDES"				\
+	/home/ $SNAPSHOT_RW/home/hourly.0 ;
+
+# step 5: update the mtime of hourly.0 to reflect the snapshot time
+$TOUCH $SNAPSHOT_RW/home/hourly.0 ;
+
+# and thats it for home.
+
+# now remount the RW snapshot mountpoint as readonly
+
+$MOUNT -o remount,ro $MOUNT_DEVICE $SNAPSHOT_RW ;
+if (( $? )); then
+{
+	$ECHO "snapshot: could not remount $SNAPSHOT_RW readonly";
+	exit;
+} fi;