#!/usr/bin/perl
use strict;
use base 'LEOCHARRE::CLI';

my $o = gopts('r');


scalar @ARGV or die('missing modules args');

my $manymods = scalar @ARGV > 1 ? 1 : 0;

map { do_one($_) } @ARGV;

sub usage {
   return qq{
$0 - what version of a perl module is installed

DESCRIPTION

If the moduoe version cannot be determined it returns 0,
if the module is not present, returns undef.


OPTION FLAGS

   -r round off things like 2.15, 0.345, and v5.4.4 to 2, 0, and 5
   -d debug
   h- help

USAGE EXAMPLES

   $0 CPAN
   $0 Cwd

SEE ALSO

LEOCHARRE::Dev
};
}




sub do_one {
   my $modname = shift;

   debug("modname $modname");

   my $ver;
   no strict 'refs';

   if ( eval "require $modname" ){

      debug($modname);

      #require $modname;

      $ver = ${"$modname\:\:VERSION"};
      defined $ver or debug("$modname is installed but can't set version via module.");

   }



   #`perl -M$mod -e "print \$$mod::VERSION"

   else {
      debug("$modname not installed on this system.");
      $ver = '';
   }

   if ($o->{r} and $ver){
      $ver=~s/^v//;
      $ver=~s/\..+$//;
   }


   defined $ver or $ver =0;

   if ( $manymods ){
      print "$modname $ver\n";
   }

   else { print $ver }
}