#! /usr/bin/perl
#
# slxos-export
#
# (c) 2006 - OpenSLX.com
#
# Oliver Tappe <ot@openslx.com>
#
use strict;

my $abstract = q[
slxos-export
    This script exports an OpenSLX-stage1-system (a.k.a. vendor-OS) into
    an OpenSLX-stage2-system (a.k.a. export), which can be an NFS-export,
	an NBD-image containing a squash-fs.
];

use Getopt::Long qw(:config pass_through);
use Pod::Usage;

# add the folder this script lives in and the lib-folder to perl's
# search path for modules:
use FindBin;
use lib "$FindBin::RealBin";
use lib "$FindBin::RealBin/../lib";

use lib "$FindBin::RealBin/../config-db";
	# development path to config-db

use OpenSLX::Basics;
use OpenSLX::OSExport::Engine;

my (
	$helpReq,
	$manReq,
	$listReq,
	$verbose,
	$versionReq,
);

GetOptions(
	'help|?' => \$helpReq,
	'list' => \$listReq,
	'man' => \$manReq,
	'verbose' => \$verbose,
	'version' => \$versionReq,
) or pod2usage(2);
pod2usage(-msg => $abstract, -verbose => 0, -exitval => 1) if $helpReq;
pod2usage(-verbose => 2) if $manReq;
if ($versionReq) {
	system('slxversion');
	exit 1;
}

openslxInit();

if ($listReq) {
	print _tr("List of supported export types:\n\t");
	print join("\n\t", keys %supportedExportTypes)."\n";
	exit 1;
}

if (scalar(@ARGV) != 2) {
	print STDERR _tr("You need to specify exactly one vendor-os-name and one export-type!\n");
	pod2usage(2);
}
my $vendorOSName = $ARGV[0];
my $exportType = $ARGV[1];

# we chdir into the script's folder such that all relative paths have
# a known starting point:
chdir($FindBin::RealBin)
	or die _tr("can't chdir to script-path <%> (%s)", $FindBin::RealBin, $!);


# create ossetup-engine for given distro and start it:
my $engine = OpenSLX::OSExport::Engine->new;
$engine->initialize($vendorOSName, $exportType);
if (!-e $engine->{'vendor-os-path'}) {
	die _tr("vendor-OS '%s' doesn't exist, giving up!\n",
			$engine->{'vendor-os-path'});
}
$engine->exportVendorOS();

__END__

=head1 NAME

slxos-export - OpenSLX-script to export a stage1-system (a.k.a. vendor-OS) into
a stage2-system (a.k.a. export).
The export itself can be done via several different types, e.g. via NFS or
via a squashfs inside of a network block device.

=head1 SYNOPSIS

slxos-export [options] <vendor-os-name> <export-type>

  Options:
      --help                   brief help message
      --list                   show available export-types
      --man                    show full documentation
      --version                show version

=head1 OPTIONS

=over 8

=item B<--help>

Prints a brief help message and exits.

=item B<--man>

Prints the manual page and exits.

=item B<--selection=<string>>

Many distributions offer several different package selections for
installation. With this option you can specify which of these you
would like to use.

If you pass an unknown selection, you will see a list of the selections
that are available.

In clone-mode, the selection specifies the name by which the cloned system
will be known (exact name will be '<distro>-<selection>' instead of
'<distro>-cloned-from-<rsync-source>').

=item B<--source=<string>>

When cloning a vendor-OS, slxos-export needs to know where to fetch
the existing OS-files from. You can specify the rsync-uri with this
option.

=item B<--version>

Prints the version and exits.

=back

=cut