# Copyright (c) 2006, 2007 - OpenSLX GmbH
#
# This program is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your suggestions, praise, or complaints to feedback@openslx.org
#
# General information about OpenSLX can be found at http://openslx.org/
# -----------------------------------------------------------------------------
# yum.pm
#    - provides yum-specific overrides of the OpenSLX::OSSetup::MetaPackager API.
# -----------------------------------------------------------------------------
package OpenSLX::OSSetup::MetaPackager::yum;

use strict;
use warnings;

use base qw(OpenSLX::OSSetup::MetaPackager::Base);

use OpenSLX::Basics;
use OpenSLX::Utils;

################################################################################
### implementation
################################################################################
sub new
{
    my $class = shift;
    my $self = {
        'name' => 'yum',
    };
    return bless $self, $class;
}

sub initPackageSources
{
    my $self = shift;

    $ENV{LC_ALL} = 'POSIX';

    slxsystem("rm -f /etc/yum.repos.d/*");
    slxsystem("mkdir -p /etc/yum.repos.d");

    return 1;
}

sub setupPackageSource
{
    my $self        = shift;
    my $repoName    = shift;
    my $repoInfo    = shift;
    my $excludeList = shift;
    my $repoURLs    = shift;

    my $repoSubdir;
    if (length($repoInfo->{'repo-subdir'})) {
        $repoSubdir = "/$repoInfo->{'repo-subdir'}";
    }
    my $baseURL = shift @$repoURLs;

    my $repoDescr 
        = "[$repoName]\nname=$repoInfo->{name}\nbaseurl=$baseURL$repoSubdir\n";
	vlog(4,"Adding repo <",$repoName,"> with Base-URL <",$baseURL,"> and Repo-SubDir <",$repoSubdir,">");
    foreach my $mirrorURL (@$repoURLs) {
        $repoDescr .= "        $mirrorURL$repoSubdir\n";
    }
    my $repoFile = "/etc/yum.repos.d/$repoName.repo";
    spitFile($repoFile, "$repoDescr\nexclude=$excludeList\n");

    return 1;
}

sub installPackages
{
    my $self     = shift;
    my $packages = shift;

    $packages =~ tr{\n}{ };
	if (slxsystem("mount -t proc proc proc/") != 0){die _tr("unable to mount proc/ for yum \n");};
    if (slxsystem("yum -y install $packages")) {
        die _tr("unable to install selection (%s)\n", $!);
    }
    if(slxsystem("umount proc/") != 0) {_tr("unable to umount proc/")};

    return 1;
}

sub removePackages
{
    my $self         = shift;
    my $pkgSelection = shift;

    if (slxsystem("yum -y remove $pkgSelection")) {
        die _tr("unable to remove selection (%s)\n", $!);
    }

    return 1;
}

sub updateBasicVendorOS
{
    my $self = shift;
	if (slxsystem("mount -t proc proc proc/") != 0){die _tr("unable to mount proc/ for yum \n");};
    if (slxsystem("yum -y update")) {
        if ($! == 2) {
            # file not found => yum isn't installed
            die _tr("unable to update this vendor-os, as it seems to lack an installation of yum!\n");
        }
        if(slxsystem("umount proc/") != 0) {_tr("unable to umount proc/")};
        die _tr("unable to update this vendor-os (%s)\n", $!);
    }	
	if(slxsystem("umount proc/") != 0) {_tr("unable to umount proc/")};
    return 1;
}

1;