#!/usr/bin/perl
$reldir="~/musix/releases";

sub  cmpver 
{ 	

	my(@a)= split /\./,$a;
	my(@b)= split /\./,$b;
	
	for $i (0,1,2) {
	    return $a[$i] <=> $b[$i] if ($a[$i] != $b[$i]);
	}
	return $a cmp $b;
}

my @versions;
open LS, "ls -1 $reldir|";


while (<LS>) {
	
    $_ =~ /lilypond-([^.]+\.[^.]+\.[^.]+).tar.gz/;
    push @versions, $1;
}


@versions = sort cmpver @versions;
my $last= (pop @versions);
print $last;

system "rm $reldir/zZ*";

system  "> $reldir/zZ_LATEST_IS_$last";