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package MGA::DrakISO::Config;

use strict;

use MDK::Common;
use Pod::Usage;
use Cwd 'getcwd';

#- we bless Media objects here
use MGA::DrakISO::Media;
#- these modules can be used from config files
use MGA::DrakISO::Mounts;
use MGA::DrakISO::CustomMedia;

our $default_config_root = '/etc/draklive';
our $default_config_path = 'config/live.cfg';
our $default_settings_path = 'config/settings.cfg';

sub read_config {
    my ($build, $config_root, $config_path, $settings_path) = @_;

    if ($config_path && -e getcwd() . '/' . $config_path) {
        $config_root = getcwd();
    }
    print "using $config_root as directory root\n";

    add2hash($build->{settings} ||= {}, { getVarsFromSh($config_root . '/' . $settings_path) }) if $settings_path;
    if ($config_path) {
        #- don't use do(), since it can't see lexicals in the enclosing scope
        my $cfg = eval(cat_($config_root . '/' . $config_path)) or die "unable to load $config_path: $@\n";
        put_in_hash($build, $cfg);
        print "loaded $config_path as config file\n";
    }
    $build->{settings}{config_root} = $config_root;
}

sub check_config {
    my ($build) = @_;
    unless (keys(%$build)) {
        warn "no live definition\n";
        Pod::Usage::pod2usage();
    }
    #- check for minimum requirements
    ref $build->{media} && $build->{media}{storage} or die "no media storage definition\n";
    ref $build->{system} or die "no system definition\n";
}

sub complete_config {
    my ($build) = @_;

    $build->{settings}{builddir} ||= '/var/lib/draklive/build';
    $build->{settings}{chroot} ||= '/var/lib/draklive/chroot';

    $build->{settings}{arch} ||= chomp_(`rpm --eval '%{_target_cpu}'`);
    $build->{media}{title} ||= "live";

    $_ = MGA::DrakISO::Media::new($_) foreach (
        $build->{media},
        ($build->{replicator} ? $build->{replicator}{media} : ()),
        ($build->{oem_rescue} ? $build->{oem_rescue}{media} : ()),
    );

    mkdir_p($build->get_builddir);
    mkdir_p($build->get_system_root);
    $build->{mnt} ||= $build->get_builddir . "/mnt";
}

sub dump_config {
    my ($build) = @_;
    use Data::Dumper;
    print Data::Dumper->Dump([ $build ], [ "live" ]);
}

1;