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#!/usr/bin/perl

##- Nanar <nanardon@mandrake.org>
##-
##- 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, 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.

# $Id$

use strict;
use RPM4;
use Getopt::Long;

GetOptions (
    'dbpath=s' => \my $dbpath,
    'v' => \my $verbose,
) && @ARGV or die "
Usage $0 [--dbpath path] hdlist.cz [hdlist2.cz [...]]
Synch rpm found into given hdlist into a database.
Usefull to create a solve rpm database.
";

$dbpath ||= RPM4::expand("%_solve_dbpath");

RPM4::add_macro("_dbpath $dbpath");

my $db = RPM4::newdb(1) or die "Can't open DB";

my %rpmlist;
my %indb;

$db->traverse_headers( sub {
        my ($hdr, $id) = @_;
        $indb{$hdr->queryformat("%{PKGID}")} = 1;
    });

foreach my $arg (@ARGV) {
    print "Reading $arg\n";
    open(my $hdfh, "zcat '$arg' |") or die "Can't open $_";
    while (my $hdr = stream2header($hdfh)) {
        $rpmlist{$hdr->queryformat("%{PKGID}")} = 1;
        defined($indb{$hdr->queryformat("%{PKGID}")}) and next;
        print "Adding " . $hdr->queryformat("%{NAME}-%{VERSION}-%{RELEASE}.%{ARCH}") . "\n";
        $db->injectheader($hdr);
    }
}

my @id2remove;

$db->traverse_headers( sub {
        my ($hdr, $id) = @_;
        defined($rpmlist{$hdr->queryformat("%{PKGID}")}) or push(@id2remove, $id);
    });

foreach (@id2remove) {
    $db->deleteheader($_);
}