use strict;
use warnings;
use File::Find;
use Getopt::Long;

use vars qw($all @datein @exts @excl $base);
GetOptions(
   'exts|t=s' => \@exts,
   'excl|c=s' => \@excl,
   'base|b=s' => \$base,
   'all|a'    => \$all,
);

if (not $all) {
   @exts = qw( jpg gif tar gz bat txt ) unless @exts;
   @excl = qw( winnt cygwin ) unless @excl;
}
$base ||= '/cygwin';

my $exts = join '|', map{quotemeta} @exts;
my $excl = join '|', map{quotemeta} @excl;

find( sub { 
      push @datein, $File::Find::name
         if !$exts
         or m/\.(?:$exts)$/oi
         and $File::Find::name !~ m!/(?:$excl)!oi
      ;
   },
   $base,
);

print "$_\n" for @datein;