NAME
Acme::CPANModules::CheckingModuleInstalledLoadable - List of modules to
check if a module is installed or loadable
VERSION
This document describes version 0.002 of
Acme::CPANModules::CheckingModuleInstalledLoadable (from Perl
distribution Acme-CPANModules-CheckingModuleInstalledLoadable), released
on 2023-08-06.
DESCRIPTION
If you simply want to check that a module's ".pm" file is locatable in
@INC, you can just do something like:
my $mod = "Foo/Bar.pm";
for my $dir (@INC) {
next if ref $dir;
if (-f "$dir/$mod") {
print "Module $mod is installed";
last;
}
}
Or you can use something like Module::Path or Module::Path::More which
does similar to the above.
A module can also be loaded from a require hook in ~@INC~ (like in the
case of fatpacked or datapacked script) and the above methods does not
handle it. Instead, you'll need to use Module::Load::Conditional's
"check_install" or Module::Installed::Tiny's "module_installed":
use Module::Load::Conditional qw(check_install);
if (check_install(module => "Foo::Bar")) {
# Foo::Bar is installed
}
The above does not guarantee that the module will be loaded
successfully. To check that, there's no other way but to actually try to
load it:
if (eval { require Foo::Bar; 1 }) {
# Foo::Bar can be loaded (and was loaded!)
}
ACME::CPANMODULES ENTRIES
Module::Path
Module::Path::More
Module::Load::Conditional
Module::Installed::Tiny
FAQ
What is an Acme::CPANModules::* module?
An Acme::CPANModules::* module, like this module, contains just a list
of module names that share a common characteristics. It is a way to
categorize modules and document CPAN. See Acme::CPANModules for more
details.
What are ways to use this Acme::CPANModules module?
Aside from reading this Acme::CPANModules module's POD documentation,
you can install all the listed modules (entries) using cpanm-cpanmodules
script (from App::cpanm::cpanmodules distribution):
% cpanm-cpanmodules -n CheckingModuleInstalledLoadable
Alternatively you can use the cpanmodules CLI (from App::cpanmodules
distribution):
% cpanmodules ls-entries CheckingModuleInstalledLoadable | cpanm -n
or Acme::CM::Get:
% perl -MAcme::CM::Get=CheckingModuleInstalledLoadable -E'say $_->{module} for @{ $LIST->{entries} }' | cpanm -n
or directly:
% perl -MAcme::CPANModules::CheckingModuleInstalledLoadable -E'say $_->{module} for @{ $Acme::CPANModules::CheckingModuleInstalledLoadable::LIST->{entries} }' | cpanm -n
This Acme::CPANModules module also helps lcpan produce a more meaningful
result for "lcpan related-mods" command when it comes to finding related
modules for the modules listed in this Acme::CPANModules module. See
App::lcpan::Cmd::related_mods for more details on how "related modules"
are found.
HOMEPAGE
Please visit the project's homepage at
adable>.
SOURCE
Source repository is at
ledLoadable>.
SEE ALSO
Acme::CPANModules - about the Acme::CPANModules namespace
cpanmodules - CLI tool to let you browse/view the lists
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, 2019 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
kingModuleInstalledLoadable>
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.