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Editing: SortVersions.pm

package Alien::Build::Plugin::Prefer::SortVersions;

use strict;
use warnings;
use 5.008004;
use Alien::Build::Plugin;

# ABSTRACT: Plugin to sort candidates by most recent first
our $VERSION = '2.80'; # VERSION

has 'filter'   => undef;

has '+version' => qr/([0-9](?:[0-9\.]*[0-9])?)/;

sub init
{
  my($self, $meta) = @_;

$meta->add_requires('share' => 'Sort::Versions' => 0);

$meta->register_hook( prefer => sub {
    my(undef, $res) = @_;

my $cmp = sub {
      my($A,$B) = map { ($_ =~ $self->version)[0] } @_;
      Sort::Versions::versioncmp($B,$A);
    };

my @list = sort { $cmp->($a->{filename}, $b->{filename}) }
               map {
                 ($_->{version}) = $_->{filename} =~ $self->version;
                 $_ }
               grep { $_->{filename} =~ $self->version }
               grep { defined $self->filter ? $_->{filename} =~ $self->filter : 1 }
               @{ $res->{list} };

return {
      type => 'list',
      list => \@list,
    };
  });
}

__END__

=pod

=encoding UTF-8

=head1 NAME

Alien::Build::Plugin::Prefer::SortVersions - Plugin to sort candidates by most recent first

=head1 VERSION

version 2.80

=head1 SYNOPSIS

use alienfile;
 
 plugin 'Prefer::SortVersions';

=head1 DESCRIPTION

Note: in most case you will want to use L<Alien::Build::Plugin::Download::Negotiate>
instead.  It picks the appropriate fetch plugin based on your platform and environment.
In some cases you may need to use this plugin directly instead.

This Prefer plugin sorts the packages that were retrieved from a dir listing, either
directly from a Fetch plugin, or from a Decode plugin.  It Returns a listing with the
items sorted from post preferable to least, and filters out any undesirable candidates.

This plugin updates the file list to include the versions that are extracted, so they
can be used by other plugins, such as L<Alien::Build::Plugin::Prefer::BadVersion>.

=head1 PROPERTIES

=head2 filter

This is a regular expression that lets you filter out files that you do not
want to consider downloading.  For example, if the directory listing contained
tarballs and readme files like this:

foo-1.0.0.tar.gz
 foo-1.0.0.readme

You could specify a filter of C<qr/\.tar\.gz$/> to make sure only tarballs are
considered for download.

=head2 version

Regular expression to parse out the version from a filename.  The regular expression
should store the result in C<$1>.  The default C<qr/([0-9\.]+)/> is frequently
reasonable.

=head1 SEE ALSO

L<Alien::Build::Plugin::Download::Negotiate>, L<Alien::Build>, L<alienfile>, L<Alien::Build::MM>, L<Alien>

=head1 AUTHOR

Author: Graham Ollis E<lt>plicease@cpan.orgE<gt>

Contributors:

Diab Jerius (DJERIUS)

Roy Storey (KIWIROY)

Ilya Pavlov

David Mertens (run4flat)

Mark Nunberg (mordy, mnunberg)

Christian Walde (Mithaldu)

Brian Wightman (MidLifeXis)

Zaki Mughal (zmughal)

mohawk (mohawk2, ETJ)

Vikas N Kumar (vikasnkumar)

Flavio Poletti (polettix)

Salvador Fandiño (salva)

Gianni Ceccarelli (dakkar)

Pavel Shaydo (zwon, trinitum)

Kang-min Liu (劉康民, gugod)

Nicholas Shipp (nshp)

Juan Julián Merelo Guervós (JJ)

Joel Berger (JBERGER)

Petr Písař (ppisar)

Lance Wicks (LANCEW)

Ahmad Fatoum (a3f, ATHREEF)

José Joaquín Atria (JJATRIA)

Duke Leto (LETO)

Shoichi Kaji (SKAJI)

Shawn Laffan (SLAFFAN)

Paul Evans (leonerd, PEVANS)

Håkon Hægland (hakonhagland, HAKONH)

nick nauwelaerts (INPHOBIA)

Florian Weimer

=head1 COPYRIGHT AND LICENSE

This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.

=cut

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