perlancar

NAME

Getopt::Long::EvenLess::Dump - Run a Getopt::Long::EvenLess-based script but only to dump the spec

VERSION

This document describes version 0.001 of Getopt::Long::EvenLess::Dump (from Perl distribution Getopt-Long-EvenLess-Dump), released on 2017-08-10.

FUNCTIONS

dump_getopt_long_evenless_script

Usage:

 dump_getopt_long_evenless_script(%args) -> [status, msg, result, meta]

Run a Getopt::Long::EvenLess-based script but only to dump the spec.

This function runs a CLI script that uses Getopt::Long::EvenLess but monkey-patches beforehand so that run() will dump the object and then exit. The goal is to get the object without actually running the script.

This can be used to gather information about the script and then generate documentation about it or do other things (e.g. App::shcompgen to generate a completion script for the original script).

CLI script needs to use Getopt::Long::EvenLess. This is detected currently by a simple regex. If script is not detected as using Getopt::Long::EvenLess, status 412 is returned.

Will return the Getopt::Long::EvenLess specification.

This function is not exported by default, but exportable.

Arguments ('*' denotes required arguments):

  • filename* => str

    Path to the script.

  • libs => array[str]

    Libraries to unshift to @INC when running script.

  • skip_detect => bool

Returns an enveloped result (an array).

First element (status) is an integer containing HTTP status code (200 means OK, 4xx caller error, 5xx function error). Second element (msg) is a string containing error message, or 'OK' if status is 200. Third element (result) is optional, the actual result. Fourth element (meta) is called result metadata and is optional, a hash that contains extra information.

Return value: (any)

ENVIRONMENT

GETOPT_LONG_EVENLESS_DUMP => bool

Will be set to 1 when executing the script to be dumped.

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/Getopt-Long-EvenLess-Dump.

SOURCE

Source repository is at https://github.com/perlancar/perl-Getopt-Long-EvenLess-Dump.

BUGS

Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Getopt-Long-EvenLess-Dump

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.

AUTHOR

perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2017 by 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.