Current File : //proc/self/root/usr/local/share/perl5/Alien/Build/Plugin/Prefer/GoodVersion.pm
package Alien::Build::Plugin::Prefer::GoodVersion;
use strict;
use warnings;
use 5.008004;
use Alien::Build::Plugin;
use Carp ();
# ABSTRACT: Plugin to filter known good versions
our $VERSION = '2.40'; # VERSION
has '+filter' => sub { Carp::croak("The filter property is required for the Prefer::GoodVersion plugin") };
sub init
{
my($self, $meta) = @_;
$meta->add_requires('configure', __PACKAGE__, '1.44');
my $filter;
if(ref($self->filter) eq '')
{
my $string = $self->filter;
$filter = sub {
my($file) = @_;
$file->{version} eq $string;
};
}
elsif(ref($self->filter) eq 'ARRAY')
{
my %filter = map { $_ => 1 } @{ $self->filter };
$filter = sub {
my($file) = @_;
!! $filter{$file->{version}};
};
}
elsif(ref($self->filter) eq 'CODE')
{
my $code = $self->filter;
$filter = sub { !! $code->($_[0]) };
}
else
{
Carp::croak("unknown filter type for Prefer::GoodVersion");
}
$meta->around_hook(
prefer => sub {
my($orig, $build, @therest) = @_;
my $res1 = $orig->($build, @therest);
return $res1 unless $res1->{type} eq 'list';
return {
type => 'list',
list => [
grep { $filter->($_) } @{ $res1->{list} }
],
};
},
);
}
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
Alien::Build::Plugin::Prefer::GoodVersion - Plugin to filter known good versions
=head1 VERSION
version 2.40
=head1 SYNOPSIS
use alienfile;
plugin 'Prefer::GoodVersion' => '1.2.3';
=head1 DESCRIPTION
This plugin allows you to specify one or more good versions of a library. This doesn't affect
a system install at all. This plugin does the opposite of the C<Prefer::BadVersion> plugin.
You need need a Prefer plugin that filters and sorts files first. You may specify the filter
in one of three ways:
=over
=item as a string
Filter any files that match the given version.
use alienfile;
plugin 'Prefer::GoodVersion' => '1.2.3';
=item as an array
Filter all files that match any of the given versions.
use alienfile;
plugin 'Prefer::GoodVersion' => [ '1.2.3', '1.2.4' ];
=item as a code reference
Filter any files return a true value.
use alienfile;
plugin 'Prefer::GoodVersion' => sub {
my($file) = @_;
$file->{version} eq '1.2.3'; # same as the string version above
};
=back
This plugin can also be used to filter known good versions of a library on just one platform.
For example, if you know that version 1.2.3 if good on windows, but the default logic is fine
on other platforms:
use alienfile;
plugin 'Prefer::GoodVersion' => '1.2.3' if $^O eq 'MSWin32';
=head1 PROPERTIES
=head2 filter
Filter entries that match the filter.
=head1 CAVEATS
If you are using the string or array mode, then you need an existing Prefer plugin that sets the
version number for each file candidate, such as L<Alien::Build::Plugin::Prefer::SortVersions>.
Unless you want to exclude the latest version from a share install, this plugin isn't really
that useful. It has no effect on system installs, which may not be obvious at first.
=head1 SEE ALSO
=over 4
=item L<alienfile>
=item L<Alien::Build>
=item L<Alien::Build::Plugin::Prefer::SortVersions>
=back
=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 Pisar (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)
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2011-2020 by Graham Ollis.
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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