#!/usr/bin/perl -w
#
# Copyright (c) 2001 Neil Blakey-Milner
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#

use strict;
my $path_tmp = "/tmp";
eval {
	require 'paths.ph';
	$path_tmp = &_PATH_TMP;
};


sub testdir (@) {
	my $d;			# currently tested dir

	foreach $d (@_) {
		next unless defined($d);
		$d =~ s,/$,,;
		return $d if ((-d $d) && (-w $d));
	}
	return "";
}

my ($user, $group, $origdir, $portname, $tmpbase, $tmpdir, $wdpdir, $predir, $hmake);
chomp ($user = `id -un`);
chomp ($group = `id -gn`);
chomp ($origdir = `pwd`);
chomp ($portname = `basename $origdir`);
$tmpbase = testdir($ENV{'TMPDIR'}, $ENV{'TMP'}, $path_tmp);
($tmpbase eq "") and die("No temp dir, please define either TMPDIR or TMP\n");
$tmpdir = "$tmpbase/$user.$portname";
$wdpdir = "$tmpdir/wdp";
$predir = "$tmpdir/prefix";

$hmake = "env WRKDIRPREFIX=$wdpdir PREFIX=$predir NO_PKG_REGISTER=1 ";
foreach (qw"SHARE MAN LIB BIN") {
	$hmake .= $_ . "OWN=$user ";
	$hmake .= $_ . "GRP=$group ";
}
$hmake .= "PREFIX=$predir NO_PKG_REGISTER=1 make";

my ($origdirs) = "$tmpdir/dirs.orig";
my ($currdirs) = "$tmpdir/dirs.curr";
my ($mtreedist) = "/etc/mtree/BSD.local.dist";

my ($redest) = "mtree -d -f $mtreedist -r -U -p $predir";

my ($ff) = "(cd $predir && find . ! -type d | cut -d/ -f2- | grep -v man/man | sort)";
my ($fd) = "(cd $predir && find . -type d | cut -d/ -f2- | grep -v '^\.\$'| sort)";

system("mkdir $tmpdir");
system("mkdir $predir");
open(MT, "<$mtreedist") || die "Cannot open mtree file";
open(TMT, ">$origdirs") || die "Cannot open temporary dirs file $origdirs: $!";
my($mydir) = "";
while (<MT>) {
	chomp;
	/^#/ && next;
	/^\// && next;
	/^\s*$/ && next;
	s/^\s*//;
	/^\.$/ && next;
	/^\.\.$/ && do {
		$mydir =~ s#/[^/]*$##;
		next;
	};
	s/\s+\S+$//g;
	#print "$_\n";
	$mydir = "$mydir/$_";
	my ($acwrite) = $mydir;
	$acwrite =~ s#^/##;
	print TMT "$acwrite\n";
}
close(TMT);

system("$redest >/dev/null");
open(INSTALL, "$hmake install |");
while(<INSTALL>) {
	print;
}
close(INSTALL);
die "abnormal program completion ($?): $!" if $?;
system($ff);

system("$fd > $currdirs");
system("comm -23 $currdirs $origdirs | sort -r | xargs -n1 echo \@dirrm");