NAME

App::ScanPrereqs - Scan files/directories for prerequisites

VERSION

This document describes version 0.005 of App::ScanPrereqs (from Perl distribution App-ScanPrereqs), released on 2019-07-31.

SYNOPSIS

 # Use via lint-prereqs CLI script

FUNCTIONS

scan_prereqs

Usage:

 scan_prereqs(%args) -> [status, msg, payload, meta]

Scan files/directories for prerequisites.

Examples:

• By default scan current directory:

   scan_prereqs();

This is an alternative CLI to scan_prereqs, with the following features:

• merged output

scan_prereqs by default reports prereqs per source file, which may or may not be what you want. This CLI outputs a single list of prerequisites found from all input.

Aside from that, you can use --json to get a JSON output.

• option to pick backend

Aside from Perl::PrereqScanner you can also use Perl::PrereqScanner::Lite and Perl::PrereqScanner::NotQuiteLite.

• filter only core or non-core prerequisites.

This function is not exported.

Arguments ('*' denotes required arguments):

• files => array[pathname] (default: ["."])

• perlver => str

  Perl version to use when determining core/non-core.

  The default is the current perl version.

• scanner => str (default: "regular")

  Which scanner to use.

  regular means Perl::PrereqScanner which is PPI-based and is the slowest but has the most complete support for Perl syntax.

  lite means Perl::PrereqScanner::Lite uses an XS-based lexer and is the fastest but might miss some Perl syntax (i.e. miss some prereqs) or crash if given some weird code.

  nqlite means Perl::PrereqScanner::NotQuiteLite which is faster than regular but not as fast as lite.

  Read respective scanner's documentation for more details about the pro's and con's for each scanner.

• show_core => bool (default: 1)

  Whether or not to show core prerequisites.

• show_noncore => bool (default: 1)

  Whether or not to show non-core prerequisites.

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 (payload) is optional, the actual result. Fourth element (meta) is called result metadata and is optional, a hash that contains extra information.

Return value: (any)

HOMEPAGE

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

SOURCE

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

BUGS

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

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) 2019, 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.

cpanm App::ScanPrereqs

perl -MCPAN -e shell
install App::ScanPrereqs