/usr/share/perl5/Pinto/PrerequisiteWalker.pm is in pinto 0.97+dfsg-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | # ABSTRACT: Iterates through distribution prerequisites
package Pinto::PrerequisiteWalker;
use Moose;
use MooseX::StrictConstructor;
use MooseX::Types::Moose qw(CodeRef ArrayRef HashRef Bool);
use MooseX::MarkAsMethods ( autoclean => 1 );
#------------------------------------------------------------------------------
our $VERSION = '0.097'; # VERSION
#------------------------------------------------------------------------------
has start => (
is => 'ro',
isa => 'Pinto::Schema::Result::Distribution',
required => 1,
);
has callback => (
is => 'ro',
isa => CodeRef,
required => 1,
);
has filters => (
is => 'ro',
isa => ArrayRef [CodeRef],
predicate => 'has_filters',
);
has queue => (
isa => ArrayRef ['Pinto::Schema::Result::Prerequisite'],
traits => [qw(Array)],
handles => { enqueue => 'push', dequeue => 'shift' },
default => sub { return [ $_[0]->apply_filters( $_[0]->start->prerequisites ) ] },
init_arg => undef,
lazy => 1,
);
has seen => (
is => 'ro',
isa => HashRef,
default => sub { return { $_[0]->start->path => 1 } },
init_arg => undef,
lazy => 1,
);
#-----------------------------------------------------------------------------
sub next {
my ($self) = @_;
my $prereq = $self->dequeue or return;
my $dist = $self->callback->($prereq);
if ( defined $dist ) {
my $path = $dist->path;
my @prereqs = $self->apply_filters( $dist->prerequisites );
$self->enqueue(@prereqs) unless $self->seen->{$path};
$self->seen->{$path} = 1;
}
return $prereq;
}
#------------------------------------------------------------------------------
sub apply_filters {
my ( $self, @prereqs ) = @_;
return @prereqs if not $self->has_filters;
for my $filter ( @{ $self->filters } ) {
@prereqs = grep { !$filter->($_) } @prereqs;
}
return @prereqs;
}
#------------------------------------------------------------------------------
__PACKAGE__->meta->make_immutable;
#-------------------------------------------------------------------------------
1;
__END__
=pod
=encoding UTF-8
=for :stopwords Jeffrey Ryan Thalhammer
=head1 NAME
Pinto::PrerequisiteWalker - Iterates through distribution prerequisites
=head1 VERSION
version 0.097
=head1 AUTHOR
Jeffrey Ryan Thalhammer <jeff@stratopan.com>
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2013 by Jeffrey Ryan Thalhammer.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
|