#!/usr/bin/perl -w

BEGIN {
  unshift @INC, ($::ENV{'BUILD_DIR'} || '/usr/lib/build');
}

use Build;
use strict;

my ($dist, $archs, $configdir, $manifest);


while (@ARGV)  {
  if ($ARGV[0] eq '--dist') {
    shift @ARGV;
    $dist = shift @ARGV;
    next;
  }
  if ($ARGV[0] eq '--archpath') {
    shift @ARGV;
    $archs = shift @ARGV;
    next;
  }
  if ($ARGV[0] eq '--configdir') {
    shift @ARGV;
    $configdir = shift @ARGV;
    next;
  }
  if (@ARGV && $ARGV[0] eq '--manifest') {
    shift @ARGV;
    $manifest = shift @ARGV;
    next;
  }
  last;
}

die("usage: order [--manifest manifest] cachedir [packages...]\n") unless @ARGV;
my $cachedir = shift @ARGV;

my @p;
if ($manifest) {
  if ($manifest eq '-') {
    @p = <STDIN>;
  } else {
    local *F;
    open(F, '<', $manifest) || die("$manifest: $!\n");
    @p = <F>;
    close F;
  }
  chomp @p;
}

push @p, @ARGV;

my $config = Build::read_config_dist($dist, $archs, $configdir);

my %deps;
my %bins;

for my $p (@p) {
  my $q;
  for my $suf ('rpm', 'deb', 'arch') {
    next unless -f "$cachedir/$p.$suf";
    if (! -s "$cachedir/$p.$suf") {
      $q = {'provides' => [], 'requires' => []}; # package from preinstallimage, no need to order
      last;
    }
    $q = Build::query("$cachedir/$p.$suf", 'filelist' => 1, 'alldeps' => 1);
    die("bad binary: $p.$suf\n") unless $q;
    push @{$q->{'provides'}}, @{$q->{'filelist'}} if $suf eq 'rpm' && $q->{'filelist'};
    delete $q->{'filelist'};
    last;
  }
  die("binary not found: $p\n") unless $q;
  $deps{$p} = $q;
}

Build::readdeps($config, undef, \%deps);
@p = Build::order($config, @p);
print "@p\n";