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my %required;
sub required_modules {
    my ($module) = @_;
    return if exists $required{$module};
    $required{$module}++;

    $mcpan ||= MetaCPAN::API->new(
        ua => HTTP::Tiny::Mech->new(
            mechua => WWW::Mechanize::Cached->new(
                cache => CHI->new(
                    driver => 'File',
                    root_dir => '/tmp/metacpan-cache',
                ),
            ),
        ),
    );

    warn "$module\n" if $option{verbose} > 1;
    my $module_details = $mcpan->module($module);
    my $dist_details   = $mcpan->release( distribution => $module_details->{distribution} );

    return wantarray ? ( $module_details->{distribution}, $dist_details->{dependency} ) : $dist_details->{dependency};
}

__DATA__

=head1 NAME

apt-perl - Installs perl dependencies from apt (if possible) otherwise uses cpanm.

=head1 VERSION

This documentation refers to apt-perl version 0.0.4

=head1 SYNOPSIS

   apt-perl [option] (module|dist|file) ...

 OPTIONS:
  -t --test         Just show what would be installed don't actually install

  -v --verbose      Show more detailed option
     --version      Prints the version information
     --help         Prints this help information
     --man          Prints the full documentation for apt-perl



=head1 DESCRIPTION

=head1 SUBROUTINES/METHODS

=head1 DIAGNOSTICS

=head1 CONFIGURATION AND ENVIRONMENT

=head1 DEPENDENCIES

=head1 INCOMPATIBILITIES

=head1 BUGS AND LIMITATIONS

There are no known bugs in this module.

Please report problems to Ivan Wills (ivan.wills@gmail.com).

Patches are welcome.

=head1 AUTHOR

Ivan Wills - (ivan.wills@gmail.com)

=head1 LICENSE AND COPYRIGHT

Copyright (c) 2013 Ivan Wills (14 Mullion Close, Hornsby Heights, NSW, Australia 2077)
All rights reserved.

This module is free software; you can redistribute it and/or modify it under
the same terms as Perl itself. See L<perlartistic>.  This program is
distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.

=cut