NAME

rocknroll - Rsync fOr baCKup and Roll

Light incremental backup tool based on rsync.

SYNOPSIS

rocknroll --init n tag dstdir

rocknroll [options] tag srcdir dstdir

rocknroll --help

rocknroll --man

DESCRIPTION

rocknroll backups a remote directories tree srcdir in dstdir onto the local host. For this ²backup, it manages a set of archives, named tag.1, tag.2, etc. Using the 'link-dest' option of rsync, it keeps only the difference between the different archives.

A dstdir can contain several tagged sequences of archive. For example, a dstdir can contain 2 archive sets named daily.1 daily.2 daily.3 daily.4 daily.5 daily.6 daily.7 and week.1 week.2 week.3 week.4.

Before a dstdir can be able to store an archive sequence, it must be formatted with the --init option.

OPTIONS

Almost options can as well be specified into the configuration file.

-c config_file

use an alternate config file.

By default, rocknroll.conf is searched in @/, @/../etc/, /etc/, /etc/rocknroll.d/ where @ is the directory containing the rocknroll binary.

--continue

start again with an existing .tag.running archive (useful after an abort)

--debug

debug mode

--dry-run

don't perfom any action, just say what it could be done

--help

print usage

--man

print the manual

--no-links

don't specify any --link-dest option to rsync

--no-roll

don't roll up the archives set

--refresh

only update the archive tag.1 (without deletion of any files on it). Don't roll up the archives set.

--ro "--opt1 --opt2 --opt3"

pass some options to rsync (useful only in argument of command line)

--update

update archive tag.1 (with deletion of obsolete files). Don't roll up archives set.

CONFIGURATION FILE

Some directives are taken from rocknroll.conf, a file located in @/, @/../etc/, /etc/, /etc/rocknroll.d/ where @ is the directory contained the rocknroll binary.

The format of a line is :

directive=value

or

directive value

A # starts a comment.

CONFIGURATION FILE DIRECTIVES

Each following directive can be passed as well on the command line as an option.

link-dest dir

by default the link-dest option is set to the tag.1 directory name. This option is to bypass this default.

mail_from email

set the email address of the sender for the mail alerts

mail_to email

set the email address of the recipient for the mail alerts

max_runtime time_in_second

set the max among of time that a backup can take. Older than this value, a .tag.running temporary directory will be deleted.

rsync_path path/to/rsync

specify the path of the rsync command line (default /usr/bin/rsync)

rsync_retcode_ok n,n,n,n...

specify a list of return codes of rsync considered as OK codes. Each code not specified with --rsync_retcode_ok or --rsync_retcode_warn is considered as an error return code.

rsync_retcode_warn n,n,n...

specify a list of return codes of rsync considered as warning codes. Each code not specified with --rsync_retcode_ok or --rsync_retcode_warn is considered as an error return code.

ro_default "--opt1 --opt2"

pass some options to rsync (useful only in config file)

send_warn 0/1

send alert on warning (default is send alert only on error)

smtp_server smtp_server

set the SMTP server

use_syslog 0/1

enable to talk to syslog

ARCHIVE INITIALIZATION

This operation is needed before a directory can be used as a backup destination.

--init n

format a backup directory to receive n archives.

FILES AND DIRECTORIES

rocknroll.conf

configuration file

.tag.ctl

a control file located in the backup directory, related to the tag archive set.

.tag.running

the temporary directory (located in the archive directory) for the running rsync.

SEE ALSO

rsnapshot, <http://rsnapshot.org>. rsnapshot and rocknroll have similar functionalities, and rsnapshot has been the first on the place. But when I began to think about rocknroll, I've never heart of rsnapshot.

AUTHOR

Jacquelin Charbonnel, <jacquelin.charbonnel at math.cnrs.fr>

COPYRIGHT & LICENSE

Copyright Jacquelin Charbonnel <jacquelin.charbonnel at math.cnrs.fr>

This software is governed by the CeCILL-C license under French law and abiding by the rules of distribution of free software. You can use, modify and/ or redistribute the software under the terms of the CeCILL- C license as circulated by CEA, CNRS and INRIA at the following URL "http://www.cecill.info".

As a counterpart to the access to the source code and rights to copy, modify and redistribute granted by the license, users are provided only with a limited warranty and the software's author, the holder of the economic rights, and the successive licensors have only limited liability.

In this respect, the user's attention is drawn to the risks associated with loading, using, modifying and/or developing or reproducing the software by the user in light of its specific status of free software, that may mean that it is complicated to manipulate, and that also therefore means that it is reserved for developers and experienced professionals having in-depth computer knowledge. Users are therefore encouraged to load and test the software's suitability as regards their requirements in conditions enabling the security of their systems and/or data to be ensured and, more generally, to use and operate it in the same conditions as regards security.

The fact that you are presently reading this means that you have had knowledge of the CeCILL-C license and that you accept its terms.

cpanm Dir::Rocknroll

perl -MCPAN -e shell
install Dir::Rocknroll