NAME
    Dist::Requires - Identify prerequisites for a distribution

VERSION
    version 0.008

SYNOPSIS
      use Dist::Requires;
      my $dr = Dist::Requires->new();

      # From a packed distribution archive file...
      my %prereqs = $dr->prerequisites(dist => 'Foo-Bar-1.2.tar.gz');

      # From an unpacked distribution directory...
      my %prereqs = $dr->prerequisites(dist => 'Foo-Bar-1.2');

DESCRIPTION
    Dist::Requires reports the packages (and their versions) that are
    required to configure, test, build, and install a distribution. The
    distribution may be either a packed distribution archive or an unpacked
    distribution directory. By default, the results will exclude
    requirements that are satisfied by the perl core.

    Dist::Requires is intended for discovering requirements in the same
    manner and context that cpan and cpanm do it. It is specifically
    designed to support Pinto, so I don't expect this module to be useful to
    you unless you are doing something that deals directly with the CPAN
    toolchain.

    Dist::Requires does not recurse into dependencies, it does not scan
    source files for packages that you "use" or "require", it does not
    search for distribution metadata on CPAN, and it does not generate
    pretty graphs. If you need those things, please "SEE ALSO".

CONSTRUCTOR
  new( %attributes )
    All of the attributes listed below can be set via the constructor, and
    retrieved via accessor methods by the same name. Once constructed, the
    object is immutable and all attributes are read-only.

ATTRIBUTES
  target_perl => $PATH
    The path to the perl executable that will be used to configure the
    distribution. Defaults to the perl that loaded this module. NOTE: this
    attribute is not configurable at this time.

  target_perl_version => $VERSION
    The core module list for the specified perl version will be used to
    filter the requirements. This only matters if you're using the default
    package filter. Defaults to the version of the perl specified by the
    "perl" attribute. Can be specified as a decimal number, a dotted version
    string, or a version object.

  timeout => $INTEGER
    Sets the timeout (in seconds) for running the distribution's
    configuration step. Defaults to 30 seconds.

  filter => $HASHREF
    Given a hashref of MODULE_NAME => VERSION pairs, any distribution
    requirements that have the same version or less than those listed in the
    hashref will be excluded from the output. This defaults to the modules
    and versions reported by Module::CoreList for the version of perl that
    was specified by the "target_perl_version" attribute. If you don't want
    any filter to be applied, then just give a reference to any empty hash.

METHODS
  prerequisites( dist => $SOME_PATH )
    Returns the requirements of the distribution as a hash of PACKAGE_NAME
    => VERSION pairs. The "dist" argument can be the path to either a
    distribution archive file (e.g. Foo-Bar-1.2.tar.gz) or an unpacked
    distribution directory (e.g. Foo-Bar-1.2). The requirements will be
    filtered according to the values specified by the "filter" attribute.

BEWARE
    Dist::Requires will attempt to configure the distribution using whatever
    build mechanism it provides (e.g. Module::Build or ExtUtils::MakeMaker
    or Module::Install) and then extract the requirements from the resulting
    metadata files. That means you could be executing unsafe code. However,
    this is no different from what cpanm and cpan do when you install a
    distribution.

SEE ALSO
    Neil Bowers has written an excellent comparison of various modules for
    finding dependencies here <http://neilb.org/reviews/dependencies.html>.

    CPAN::Dependency

    CPAN::FindDependencies

    Devel::Dependencies

    Module::Depends

    Module::Depends::Tree

    Perl::PrereqScanner

SUPPORT
  Perldoc
    You can find documentation for this module with the perldoc command.

      perldoc Dist::Requires

  Websites
    The following websites have more information about this module, and may
    be of help to you. As always, in addition to those websites please use
    your favorite search engine to discover more resources.

    *   Search CPAN

        The default CPAN search engine, useful to view POD in HTML format.

        <http://search.cpan.org/dist/Dist-Requires>

    *   CPAN Ratings

        The CPAN Ratings is a website that allows community ratings and
        reviews of Perl modules.

        <http://cpanratings.perl.org/d/Dist-Requires>

    *   CPAN Testers

        The CPAN Testers is a network of smokers who run automated tests on
        uploaded CPAN distributions.

        <http://www.cpantesters.org/distro/D/Dist-Requires>

    *   CPAN Testers Matrix

        The CPAN Testers Matrix is a website that provides a visual overview
        of the test results for a distribution on various Perls/platforms.

        <http://matrix.cpantesters.org/?dist=Dist-Requires>

    *   CPAN Testers Dependencies

        The CPAN Testers Dependencies is a website that shows a chart of the
        test results of all dependencies for a distribution.

        <http://deps.cpantesters.org/?module=Dist::Requires>

  Bugs / Feature Requests
    <https://github.com/thaljef/Dist-Requires/issues>

  Source Code
    <https://github.com/thaljef/Dist-Requires>

      git clone git://github.com/thaljef/Dist-Requires.git

AUTHOR
    Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>

COPYRIGHT AND LICENSE
    This software is copyright (c) 2011 by Imaginative Software Systems.

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

