#!/usr/bin/perl

use strict;
use warnings;
use RPM2;
use File::Copy;

my $rpm_flags =  RPM2->vsf_nodsa;
my @repositories = qw( 
	/mirrors/centos/4/fasttrack/SRPMS
	/mirrors/centos/4/updates/SRPMS
	/mirrors/centos/4/os/SRPMS
	/mirrors/centos/4/extras/SRPMS
	/mirrors/rpmforge/dag/source/
	/mirrors/atrpms/src/el4-i386/atrpms/stable/
	/mirrors/fedora-legacy/fedora/3/updates/SRPMS/
	/mirrors/fedora-legacy/fedora/3/os/SRPMS/
	/builds/rpms/SRPMS/
	);

opendir RPMS, "/builds/RPMS" or die "Couldn't opendir /builds/RPMS";
my %rpms = map { my $x = RPM2->open_package("/builds/RPMS/$_", $rpm_flags); $x->tag('NAME') => $x; } grep { /\.rpm$/ } readdir RPMS;
closedir RPMS;

my %repos;
foreach my $repo (reverse @repositories)
{
    my %temp_repo = map { $_ => $repo } grep { /\.rpm$/ } readdir RPMS if ( opendir RPMS, $repo );
    closedir RPMS;

    %repos = (%repos, %temp_repo);
}

foreach my $rpm ( sort keys %rpms )
{
    my (@headers, $header);

    my $rpmfix = $rpm;
    $rpmfix =~ s@\+@\\+@g;

    my @sources;
    my $src = $rpms{$rpm}->tag('SOURCERPM');
    push @sources, $src;
    push @sources, $src if ($src =~ s/\.2\.el4\.rf\./\.rf\./);
    push @sources, $src if ($src =~ s/\.el4\.rf\./\.rf\./);
    push @sources, $src if ($src =~ s/\.el4\.at\./\.at\./);
    push @sources, $src if ($src =~ s/\.rf\./\.dag\./);

    my $found = 0;
    foreach my $source ( @sources )
    {
        if( -f "/builds/SRPMS/$source" )
        {
            $found = 1;
            last;
        } else {
            if ($repos{$source})
            {
                my $fromfile = $repos{$source} . "/$source";
                $fromfile =~ s#//#/#g;
                `cp --preserve=timestamps $fromfile /builds/SRPMS/`;
                $found = 1;
                last;
            }

        }
    }
    print "can't find SRPM ($sources[0]) for $rpm\n" unless $found;
}