#!/usr/local/bin/perl

use 5.008;

use strict;
use warnings;

use CPAN::Access::AdHoc;
use Getopt::Long 2.33;
use Pod::Usage;

our $VERSION = '0.000_18';

my %opt;

GetOptions( \%opt,
    qw{ cpan=s },
    help => sub { pod2usage( { -verbose => 2 } ) },
) or pod2usage( { -verbose => 0 } );

my @res = map { qr{ $_ }smx } @ARGV;

my $cad = CPAN::Access::AdHoc->new( cpan => $opt{cpan} );

foreach my $pkg ( $cad->indexed_distributions() ) {
    foreach my $re ( @res ) {
	$pkg =~ $re
	    or next;
	print "$pkg\n";
	last;
    }
}

__END__

=head1 TITLE

grep-distributions - List all indexed distributions that match one or more regexes.

=head1 SYNOPSIS

 grep-distributions '\.zip\z'
 grep-distributions -help
 grep-distributions -version

=head1 OPTIONS

=head2 -cpan

This option specifies the URL of the CPAN repository to analyze. The
default depends on how L<CPAN::Access::AdHoc|CPAN::Access::AdHoc> is
configured.

=head2 -help

This option displays the documentation for this script. The script then
exits.

=head2 -version

This option displays the version of this script. The script then exits.

=head1 DETAILS

This Perl script takes as its arguments one or more Perl regular
expressions, applies those regular expressions to the names of all the
distributions in the CPAN repository, and writes the names of any
matches to standard out.

=head1 AUTHOR

Thomas R. Wyant, III F<wyant at cpan dot org>

=head1 COPYRIGHT AND LICENSE

Copyright (C) 2012-2013 by Thomas R. Wyant, III

This program is free software; you can redistribute it and/or modify it
under the same terms as Perl 5.10.0. For more details, see the full text
of the licenses in the directory LICENSES.

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

# ex: set textwidth=72 :