#!/usr/bin/env perl

# Copyright (C) 2008  Joshua Hoblitt
#
# $Id: neb-copies,v 1.3 2008-06-28 00:24:08 jhoblitt Exp $

use strict;
use warnings FATAL => qw( all );

use vars qw( $VERSION );
$VERSION = '0.01';

use Nebulous::Client;
use Nebulous::Util 0.02 qw( :standard );

use Getopt::Long qw( GetOptions :config auto_help auto_version );
use Pod::Usage qw( pod2usage );

my ($server, $delete, $write);

$server = $ENV{'NEB_SERVER'} unless $server;

GetOptions(
    'server|s=s'    => \$server,
) || pod2usage( 2 );

my ($key, $value) = (shift, shift);

pod2usage( -msg => "Unknown option: @ARGV", -exitval => 2 ) if @ARGV;
pod2usage( -msg => "Required options: --server", -exitval => 2 )
    unless $server;
pod2usage( -msg => "missing nebulous key", exitval => 2 )
    unless defined $key;

my $neb = Nebulous::Client->new(
    proxy => "$server",
);

die "can't connect to Nebulous Server: $server"
    unless defined $neb;

# key with value write/overwrite user.copies:value
if (defined $value) {
    write_xattrs($neb, $key, "user.copies:$value") or die;
    exit(0);
}

# key without value means print the value of user.copies.
print_xattrs($neb, $key, "user.copies") or die;
exit(0);



__END__

=pod

=head1 NAME

neb-copies - get/set how many copies Nebulous should attempt to keep

=head1 SYNOPSIS

    neb-copies [--server <URL>] <key> [<n copies>]

=head1 DESCRIPTION

This program can retrieve or store the xattr attribute C<user.copies>.  If
invoked with just C<<key>> it will print the value.  If invoked with C<<key>>
and C<<value>> it will set the value.

=head1 OPTIONS

=over 4

=item * --server|-s <URL>

URL of the Nebulous server to connect to.

Optional if the appropriate environment variable is set.

=back

=head1 ENVIRONMENT

These environment variables may be used in place of the specified command line
options.  All command line option will override the corresponding environment
value.

=over 4

=item * C<NEB_SERVER>

Equivalent to --server|-s

=back

=head1 CREDITS

Just me, myself, and I.

=head1 SUPPORT

Please contact the author directly via e-mail.

=head1 AUTHOR

Joshua Hoblitt <jhoblitt@cpan.org>

=head1 COPYRIGHT

Copyright (C) 2007-2008  Joshua Hoblitt.  All rights reserved.

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 2 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, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA  02111-1307, USA.

The full text of the license can be found in the L<perlgpl> Pod as supplied
with Perl 5.8.1 and later.

=head1 SEE ALSO

L<Nebulous::Client>

=cut
