perlancar > App-ListPrereqs > list-prereqs

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NAME ^

list-prereqs - List prerequisites of a Perl module

VERSION ^

This document describes version 0.06 of list-prereqs (from Perl distribution App-ListPrereqs), released on 2015-09-03.

SYNOPSIS ^

Usage:

 % list-prereqs [options] <module>...

DESCRIPTION ^

Currently skips prerequisites which are modules already in core (for installed perl version).

OPTIONS ^

* marks required options.

Configuration options

--config-path=filename

Set path to configuration file.

Can be specified multiple times.

--config-profile=s

Set configuration profile to use.

--no-config

Do not use any configuration file.

Environment options

--no-env

Do not read environment for default options.

Logging options

--debug

Set log level to debug (note: you also need to set LOG=1 to enable logging, or use DEBUG=1).

--log-level=s

Set log level (note: you also need to set LOG=1 to enable logging).

--quiet

Set log level to quiet (note: you also need to set LOG=1 to enable logging, or use QUIET=1).

--trace

Set log level to trace (note: you also need to set LOG=1 to enable logging, or use TRACE=1).

--verbose

Set log level to info (note: you also need to set LOG=1 to enable logging, or use VERBOSE=1).

Output options

--format=s

Choose output format, e.g. json, text.

Default value:

 undef
--json

Set output format to json.

--naked-res

When outputing as JSON, strip result envelope.

Default value:

 0

By default, when outputing as JSON, the full enveloped result is returned, e.g.:

    [200,"OK",[1,2,3],{"func.extra"=>4}]

The reason is so you can get the status (1st element), status message (2nd element) as well as result metadata/extra result (4th element) instead of just the result (3rd element). However, sometimes you want just the result, e.g. when you want to pipe the result for more post-processing. In this case you can use `--naked-res` so you just get:

    [1,2,3]

Other options

--help, -h, -?

Display help message and exit.

--module-json=s

Perl module(s) to check (JSON-encoded).

See --module.

--module=s*

Perl module(s) to check.

--raw

Return raw result.

--recursive, -r

Whether to check recursively.

--version, -v

Display program's version and exit.

COMPLETION ^

This script has shell tab completion capability with support for several shells.

bash

To activate bash completion for this script, put:

 complete -C list-prereqs list-prereqs

in your bash startup (e.g. ~/.bashrc). Your next shell session will then recognize tab completion for the command. Or, you can also directly execute the line above in your shell to activate immediately.

It is recommended, however, that you install shcompgen which allows you to activate completion scripts for several kinds of scripts on multiple shells. Some CPAN distributions (those that are built with Dist::Zilla::Plugin::GenShellCompletion) will even automatically enable shell completion for their included scripts (using shcompgen) at installation time, so you can immadiately have tab completion.

tcsh

To activate tcsh completion for this script, put:

 complete list-prereqs 'p/*/`list-prereqs`/'

in your tcsh startup (e.g. ~/.tcshrc). Your next shell session will then recognize tab completion for the command. Or, you can also directly execute the line above in your shell to activate immediately.

It is also recommended to install shcompgen (see above).

other shells

For fish and zsh, install shcompgen as described above.

ENVIRONMENT ^

LIST_PREREQS_OPT => str

Specify additional command-line options

CONFIGURATION FILE ^

This script can read configuration file, which by default is searched at ~/.config/list-prereqs.conf, ~/list-prereqs.conf or /etc/list-prereqs.conf (can be changed by specifying --config-path). All found files will be read and merged.

To disable searching for configuration files, pass --no-config.

Configuration file is in the format of IOD, which is basically INI with some extra features.

You can put multiple profiles in a single file by using section names like [profile=SOMENAME]. Those sections will only be read if you specify the matching --config-profile SOMENAME.

List of available configuration parameters:

 format (see --format)
 log_level (see --log-level)
 module (see --module)
 naked_res (see --naked-res)
 raw (see --raw)
 recursive (see --recursive)

FILES ^

~/.config/list-prereqs.conf

~/list-prereqs.conf

/etc/list-prereqs.conf

HOMEPAGE ^

Please visit the project's homepage at https://metacpan.org/release/App-ListPrereqs.

SOURCE ^

Source repository is at https://github.com/perlancar/perl-App-ListPrereqs.

BUGS ^

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

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) 2015 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.

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