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package CPAN::Plugin;
use strict;
use warnings;
our $VERSION = '0.97';
require CPAN;
######################################################################
sub new { # ;
my ($class, %params) = @_;
my $self = +{
(ref $class ? (%$class) : ()),
%params,
};
$self = bless $self, ref $class ? ref $class : $class;
unless (ref $class) {
local $_;
no warnings 'once';
$CPAN::META->use_inst ($_) for $self->plugin_requires;
}
$self;
}
######################################################################
sub plugin_requires { # ;
}
######################################################################
sub distribution_object { # ;
my ($self) = @_;
$self->{distribution_object};
}
######################################################################
sub distribution { # ;
my ($self) = @_;
my $distribution = $self->distribution_object->id;
CPAN::Shell->expand("Distribution",$distribution)
or $self->frontend->mydie("Unknowns distribution '$distribution'\n");
}
######################################################################
sub distribution_info { # ;
my ($self) = @_;
CPAN::DistnameInfo->new ($self->distribution->id);
}
######################################################################
sub build_dir { # ;
my ($self) = @_;
my $build_dir = $self->distribution->{build_dir}
or $self->frontend->mydie("Distribution has not been built yet, cannot proceed");
}
######################################################################
sub is_xs { #
my ($self) = @_;
my @xs = glob File::Spec->catfile ($self->build_dir, '*.xs'); # quick try
unless (@xs) {
require ExtUtils::Manifest;
my $manifest_file = File::Spec->catfile ($self->build_dir, "MANIFEST");
my $manifest = ExtUtils::Manifest::maniread($manifest_file);
@xs = grep /\.xs$/, keys %$manifest;
}
scalar @xs;
}
######################################################################
package CPAN::Plugin;
1;
__END__
=pod
=head1 NAME
CPAN::Plugin - Base class for CPAN shell extensions
=head1 SYNOPSIS
package CPAN::Plugin::Flurb;
use parent 'CPAN::Plugin';
sub post_test {
my ($self, $distribution_object) = @_;
$self = $self->new (distribution_object => $distribution_object);
...;
}
=head1 DESCRIPTION
=head2 Alpha Status
The plugin system in the CPAN shell was introduced in version 2.07 and
is still considered experimental.
=head2 How Plugins work?
See L<CPAN/"Plugin support">.
=head1 METHODS
=head2 plugin_requires
returns list of packages given plugin requires for functionality.
This list is evaluated using C<< CPAN->use_inst >> method.
=head2 distribution_object
Get current distribution object.
=head2 distribution
=head2 distribution_info
=head2 build_dir
Simple delegatees for misc parameters derived from distribution
=head2 is_xs
Predicate to detect whether package contains XS.
=head1 AUTHOR
Branislav Zahradnik <barney@cpan.org>
=cut