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#!/usr/bin/perl
use urpm;
use urpm::msg;
sub main {
my %options;
$options{restrict_group} = 0;
$options{group} = 'System/Libraries';
$options{root} = '';
my $usage = N("usage: %s [options]
where [options] are from
", $0) . N(" -h|--help - print this help message.
") . N(" --root <path> - use the given root instead of /
") . N(" -g [group] - restrict results to given group.
") . N(" defaults is %s.
", $options{group});
my $group;
while ($_ = shift @_) {
/^--root$/ and do {
$root=shift @_;
$root and $options{root}=$root;
next;
};
/^-g$/ and do {
$options{restrict_group}=1;
$group=shift @_;
$group and $options{group}=$group;
next;
};
die $usage;
}
my @packages;
{
my $db = URPM::DB::open($options{root}) or die;
$db->traverse(sub {
my ($p) = @_;
$p->pack_header;
push @packages, $p;
});
}
foreach my $pkg (@packages) {
next if $options{restrict_group} && $pkg->group !~ /$options{group}/i;
$l{$pkg->name} = 1;
push @{$provides{$_}}, $pkg->name foreach $pkg->provides_nosense;
}
foreach my $pkg (@packages) {
delete @l{grep { $_ ne $pkg->name } @{$provides{$_} || []}} foreach $pkg->requires_nosense;
}
print "$_\n" foreach sort keys %l;
}
main(@ARGV);
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