#!/usr/bin/perl
# $Id: pkg_remove,v 1.3 1999/11/06 15:47:49 sada Exp $
use Getopt::Std;
getopts('n');
die("usage: x [-n] ALL | <package-name> [, <package-name> [..]]\n -n : only tell what will take place.\n") if (@ARGV < 1);
$pkg_dbdir = "/var/db/pkg";
opendir(PKG_DBDIR, $pkg_dbdir);
while ($pkg = readdir(PKG_DBDIR)) {
	next if $pkg =~ m/^\./;
	$req_by{$pkg} = '';
	if (-f "$pkg_dbdir/$pkg/+REQUIRED_BY") {
		open(REQ_B, "$pkg_dbdir/$pkg/+REQUIRED_BY");
		$req_by{$pkg} = join('', <REQ_B>);
	}
}
while ($a = shift) {
	while (($key, $val) = each(%req_by)) {
		if ($a eq 'ALL' || $key =~ m/$a/) {
			&remove_package($key);
		}
	}
}

sub remove_package
{
	my ($pkg) = @_;
	return if ($pkg_removed{$pkg});
	my @r = split(/\n/, $req_by{$pkg});
	my $p;
	&remove_package($p) while $p = shift(@r);
	print "remove: $pkg\n";
	system "pkg_delete $pkg" unless ($opt_n);
	$pkg_removed{$pkg} = 'YES';
}