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#!/usr/bin/perl
=head1 NAME
brackup - do a backup using Brackup
=head1 SYNOPSIS
$ brackup [-v] --from=<source> --to=<target> [--output=my_backup.brackup] [--save-stats]
=head2 OPTIONS
=over 4
=item --from=NAME
Required. The source or root of your backup. Must match a [SOURCE:NAME]
config section in your ~/.brackup.conf (which is auto-created for you
on first run, so then you just have to go modify it). See L<Brackup::Root>
for more.
=item --to=NAME
Required. The destination or target for your backup. Must match a
[TARGET:NAME] config section in your ~/.brackup.conf. See L<Brackup::Target>
for more.
=item --output=FILE
Optional. Defaults to "source-target-YYYYMMDD.brackup". This is the
"metafile" index you'll need to do a restore.
=item --config=FILE
Specify the configuration file to use; defaults to ~/.brackup
=item --save-stats[=FILE]
Optional. Flag to indicate that stats output should be recorded to a
file. If =FILE is omitted, defaults to "source-target-YYYYMMDD.stats."
=item --verbose|-v
Show status during backup.
=item --dry-run
Don't actually store any data on the target.
=item --du-stats
Prints the size, in kB, of data underneath each directory
(recursively) which will be backed up.
=item --zenityprogress
Produces output suitable for piping into C<zenity --progress> to get a
pretty GUI progress bar while running a backup. This option is
incompatable with C<--verbose>, as both print to STDOUT.
=back
=head1 WARRANTY
Brackup is distributed as-is and comes without warranty of any kind,
expressed or implied. We aren't responsible for your data loss.
=head1 SEE ALSO
L<Brackup::Manual::Overview>
L<brackup-restore>
L<brackup-target>
L<Brackup::Root>
L<Brackup::Target>
=head1 AUTHOR
Brad Fitzpatrick E<lt>brad@danga.comE<gt>
Copyright (c) 2006-2007 Six Apart, Ltd. All rights reserved.
This module is free software. You may use, modify, and/or redistribute this
software under the terms of same terms as perl itself.
=cut
use strict;
use warnings;
use Getopt::Long;
use Cwd;
use FindBin qw($Bin);
use lib "$Bin/lib";
use Brackup;
use Brackup::Util qw(noclobber_filename);
my ($src_name, $target_name, $backup_file, $stats_file, $opt_help);
my $opt_dryrun;
my $opt_verbose;
my $opt_du_stats;
my $opt_zenityprogress;
my $config_file = Brackup::Config->default_config_file_name;
my $arguments = join(' ', @ARGV);
usage() unless
GetOptions(
'from=s' => \$src_name,
'to=s' => \$target_name,
'verbose' => \$opt_verbose,
'zenity-progress' => \$opt_zenityprogress,
'output=s' => \$backup_file,
'save-stats:s' => \$stats_file,
'help' => \$opt_help,
'dry-run' => \$opt_dryrun,
'du-stats' => \$opt_du_stats,
'config=s' => \$config_file,
);
usage() if @ARGV;
if ($opt_help) {
eval "use Pod::Usage;";
Pod::Usage::pod2usage( -verbose => 1, -exitval => 0 );
exit 0;
}
if ($opt_verbose && $opt_zenityprogress) {
die "Can't use --verbose and --zenity-progress at the same time";
}
my $config = eval { Brackup::Config->load($config_file) } or
usage($@);
if ($opt_du_stats && $src_name) {
my $root = eval { $config->load_root($src_name); } or
die "Bogus --from name";
$root->du_stats;
exit 0;
}
usage() unless $src_name && $target_name;
my $cwd = getcwd();
sub usage {
my $why = shift || "";
if ($why) {
$why =~ s/\s+$//;
$why = "Error: $why\n\n";
}
die "${why}brackup --from=[source_name] --to=[target_name] [--output=<backup_metafile.brackup>]\nbrackup --help\n";
}
my $root = eval { $config->load_root($src_name); } or
usage($@);
my $target = eval { $config->load_target($target_name); } or
usage($@);
my @now = localtime();
$backup_file ||= sprintf("%s-%s-%04d%02d%02d.brackup",
$root->name, $target->name, $now[5]+1900, $now[4]+1, $now[3]);
$backup_file =~ s!^~/!$ENV{HOME}/! if $ENV{HOME};
$backup_file = "$cwd/$backup_file" unless $backup_file =~ m!^/!;
if (defined $stats_file) {
if ($stats_file eq '') {
($stats_file = $backup_file) =~ s/(\.brackup)?$/.stats/;
}
else {
$stats_file = "$cwd/$stats_file" unless $stats_file =~ m!^/!;
}
}
$backup_file = noclobber_filename($backup_file);
$stats_file = noclobber_filename($stats_file) if $stats_file;
my $backup = Brackup::Backup->new(
root => $root,
target => $target,
dryrun => $opt_dryrun,
verbose => $opt_verbose,
zenityprogress => $opt_zenityprogress,
);
if (my $stats = eval { $backup->backup($backup_file) }) {
warn "Backup complete.\n" if $opt_verbose;
$stats->set('Run Arguments:' => $arguments);
if ($opt_dryrun || $opt_verbose) {
$stats->print;
}
if ($stats_file) {
$stats->print($stats_file);
}
exit 0;
} else {
warn "Error running backup: $@\n";
exit 1;
}
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