#!/usr/bin/perl -w

use strict;
use Archive::Zip qw/AZ_OK/;
use File::Temp qw/tempfile/;

use constant MB => 1024 * 1024;

my $dir = qw( zip_this/);
my @files = do {
 opendir my $fd, "$dir" or die $! or die $!;
 grep -f, map  "$dir$_", readdir $fd;
};

my $zip = Archive::Zip->new;
my $total;
my $limit = 5*MB;

my $FileCount = 0;

foreach my $file (@files) {

 my $temp = Archive::Zip->new;

 my $member = $temp->addFile($file);
 next unless $member->compressedSize;

 my $fh = tempfile();
 $temp->writeToFileHandle($fh) == AZ_OK or die $!;
 
 $zip->addMember($member);
 $total += $member->compressedSize;
 #die "$total bytes exceeds archive size limit" if $total > $limit;
 
 my $new_total; 
 if($total > $limit) {
   $FileCount++;
   $total = $total/2;
   print "\n$filecount - $total - $file\n\n";
 }
 #die "$total bytes exceeds archive size limit" if $total > $limit;

}

print "Total archive size: $total bytes\n\n";

$zip->writeToFileNamed('zipped.zip') == AZ_OK or die $!;