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lib/CPAN/Testers/Common/Client/PrereqCheck.pm  view on Meta::CPAN

                    $passes++;
                }
                next RQ;
            }
            # if made it here, then it's a normal >= comparison
            if (! CPAN::Version->vlt($have, $rq)){
                $passes++;
            }
        }
        my $ok = $passes == @requirements ? 1 : 0;
        print "$mod $ok $have\n"
    }
    return;
}

sub _try_load {
  my ($module, $have) = @_;

  my @do_not_load = (
    # should not be loaded directly
    qw/Term::ReadLine::Perl Term::ReadLine::Gnu MooseX::HasDefaults Readonly::XS
       POE::Loop::Event SOAP::Constants
       Moose::Meta::TypeConstraint::Parameterizable Moose::Meta::TypeConstraint::Parameterized/,
    'Devel::Trepan', #"require Enbugger; require Devel::Trepan;" starts debugging session

    #removed modules
    qw/Pegex::Mo YAML::LibYAML/,

    #have additional prereqs
    qw/Log::Dispatch::Email::MailSender RDF::NS::Trine Plack::Handler::FCGI Web::Scraper::LibXML/,

    #modify @INC. 'lib' appearing in @INC will prevent correct
    #checking of modules with XS part, for ex. List::Util
    qw/ExtUtils::ParseXS ExtUtils::ParseXS::Utilities/,

    #require special conditions to run
    qw/mylib/,

    #do not return true value
    qw/perlsecret Alt::Crypt::RSA::BigInt/,
  );

  my %loading_conflicts = (
    'signatures' => ['Catalyst'],
    'Dancer::Plugin::FlashMessage' => ['Dancer::Plugin::FlashNote'],
    'Dancer::Plugin::FlashNote' => ['Dancer::Plugin::FlashMessage'],
    'Dancer::Plugin::Mongoose' => ['Dancer::Plugin::DBIC'],
    'Dancer::Plugin::DBIC' => ['Dancer::Plugin::Mongoose'],
    'Test::BDD::Cucumber::Loader' => ['Test::Exception', 'Test::MockObject'], #works in different order
    'Test::Mock::LWP::UserAgent' => ['HTTP::Response'],
    'Test::SharedFork' => ['threads'], #dies if $INC{'threads.pm'}
    'Test::TCP' => ['threads'], #loads Test::SharedFork
    'Test::Fake::HTTPD' => ['threads'], #loads Test::SharedFork
    #Note: Test::Perl::Critic and other modules load threads, so reordering will not help
  ); #modules that conflict with each other

  my %load_before = (
    'Tk::Font' => 'Tk',
    'Tk::Widget' => 'Tk',
    'Tk::Label' => 'Tk',
    'Tk::Menubutton' => 'Tk',
    'Tk::Entry' => 'Tk',
    'Class::MOP::Class' => 'Class::MOP',
    'Moose::Meta::TypeConstraint::Role' => 'Moose',
    'Moose::Meta::TypeConstraint::Union' => 'Moose',
    'Moose::Meta::Attribute::Native' => 'Class::MOP',
    'Moose::Meta::Role::Attribute' => 'Class::MOP',
    'Test::More::Hooks' => 'Test::More',
    'Net::HTTP::Spore::Middleware::DefaultParams' => 'Net::HTTP::Spore::Meta::Method',
    'Log::Log4perl::Filter' => 'Log::Log4perl',
    'RDF::DOAP::Project' => 'RDF::Trine', #or other modules that use RDF::Trine will fail
  );

  # M::I < 0.95 dies in require, so we can't check if it loads
  # Instead we just pretend that it works
  if ( $module eq 'Module::Install' && $have < 0.95 ) {
    return 1;
  }
  # circular dependency with Catalyst::Runtime, so this module
  # does not depends on it, but still does not work without it.
  elsif ( $module eq 'Catalyst::DispatchType::Regex' && $have <= 5.90032 ) {
    return 1;
  }
  elsif (  grep { $_ eq $module } @do_not_load ) {
    return 1;
  }
  # loading Acme modules like Acme::Bleach can do bad things,
  # so never try to load them; just pretend that they work
  elsif( $module =~ /^Acme::/ ) {
    return 1;
  }

  if ( exists $loading_conflicts{$module} ) {
      foreach my $mod1 ( @{ $loading_conflicts{$module} } ) {
         my $file = "$mod1.pm";
         $file =~ s{::}{/}g;
         if (exists $INC{$file}) {
             return 1;
         }
      }
  }

  if (exists $load_before{$module}) {
      eval "require $load_before{$module};1;";
  }
  my $file = "$module.pm";
  $file =~ s{::}{/}g;

  return eval {require $file; 1}; ## no critic
}

1;
__END__
=head1 NAME
 
CPAN::Testers::Common::Client::PrereqCheck - Modulino for prerequisite tests

=head1 SYNOPSIS
 
  require CPAN::Testers::Common::Client::PrereqCheck;
  my $prereq_check = $INC{'CPAN/Testers/Common/Client/PrereqCheck.pm'};