NAME

Perl::PrereqScanner - a tool to scan your Perl code for its prerequisites

VERSION

version 0.100521

SYNOPSIS

  use Perl::PrereqScanner;
  my $scan    = Perl::PrereqScanner->new;
  my $prereqs = $scan->scan_ppi_document( $ppi_doc );
  my $prereqs = $scan->scan_file( $file_path );
  my $prereqs = $scan->scan_string( $perl_code );

DESCRIPTION

The scanner will extract loosely your distribution prerequisites from your files.

The extraction may not be perfect but tries to do its best. It will currently find the following prereqs:

• plain lines beginning with use or require in your perl modules and scripts, including minimum perl version

• regular inheritance declared with the base and parent pragmata

• Moose inheritance declared with the extends keyword

• Moose roles included with the with keyword

It will trim the following pragamata: strict, warnings, and lib. base is trimmed unless a specific version is required. parent is kept, since it's only recently become a core library.

METHODS

scan_string

  my $prereqs = $scanner->scan_string( $perl_code );

Given a string containing Perl source code, this method returns a Version::Requirements object describing the modules it requires.

scan_file

  my $prereqs = $scanner->scan_file( $path );

Given a file path to a Perl document, this method returns a Version::Requirements object describing the modules it requires.

scan_ppi_document

  my $prereqs = $scanner->scan_ppi_document( $ppi_doc );

Given a PPI::Document, this method returns a Version::Requirements object describing the modules it requires.

AUTHORS

  Jerome Quelin
  Ricardo Signes <rjbs@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2009 by Jerome Quelin.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.