NAME
Require::Hook - Namespace for require() hooks
VERSION
This document describes version 0.004 of Require::Hook (from Perl distribution Require-Hook), released on 2023-12-05.
DESCRIPTION
NOTE: Please see Require::HookPlugin instead which largely supersedes this.
As one already understands, Perl lets you put coderefs or objects in @INC
as "hooks". This lets you do all sorts of things when it comes to loading modules, for example:
faking that a module does not exist when it does
This can be used for testing.
loading module from various sources
You can load module source from the DATA section or variables, as is done in a fatpacked script. Or you can retrieve module source from CPAN so a script can magically run without installing extra CPAN modules.
munging source code
Like adding some Perl code before (
use strict;
) or after, for testing purpose or otherwise.decrypt from an ecrypted source
In the case of objects, perl will call your INC
method. So this is how you would write a module for a require hook:
package My::INCHandler;
sub new { ... }
sub My::INCHandler::INC {
my ($self, $filename) = @_;
...
}
1;
Require::Hook
is just a namespace to put and share all your require hooks.
HOMEPAGE
Please visit the project's homepage at https://metacpan.org/release/Require-Hook.
SOURCE
Source repository is at https://github.com/perlancar/perl-Require-Hook.
SEE ALSO
Require::Hook::*
modules.
Require::HookChain is a newer framework that largely supersedes Require::Hook.
AUTHOR
perlancar <perlancar@cpan.org>
CONTRIBUTING
To contribute, you can send patches by email/via RT, or send pull requests on GitHub.
Most of the time, you don't need to build the distribution yourself. You can simply modify the code, then test via:
% prove -l
If you want to build the distribution (e.g. to try to install it locally on your system), you can install Dist::Zilla, Dist::Zilla::PluginBundle::Author::PERLANCAR, Pod::Weaver::PluginBundle::Author::PERLANCAR, and sometimes one or two other Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps required beyond that are considered a bug and can be reported to me.
COPYRIGHT AND LICENSE
This software is copyright (c) 2023, 2020, 2017 by perlancar <perlancar@cpan.org>.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
BUGS
Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Require-Hook
When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.