NAME

Alien::Build::Plugin::Prefer::GoodVersion - Plugin to filter known good versions

VERSION

version 2.48

SYNOPSIS

 use alienfile;
 plugin 'Prefer::GoodVersion' => '1.2.3';

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 "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:

as a string

Filter any files that match the given version.

 use alienfile;
 plugin 'Prefer::GoodVersion' => '1.2.3';

as an array

Filter all files that match any of the given versions.

 use alienfile;
 plugin 'Prefer::GoodVersion' => [ '1.2.3', '1.2.4' ];

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
 };

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';

PROPERTIES

filter

Filter entries that match the filter.

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 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.

AUTHOR

Author: Graham Ollis <plicease@cpan.org>

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)

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.