# ABSTRACT: Unpack an archive into a temporary directory

package Pinto::ArchiveUnpacker;

use Moose;
use MooseX::StrictConstructor;
use MooseX::Types::Moose qw(Bool);
use MooseX::MarkAsMethods (autoclean => 1);

use Cwd qw(getcwd);
use Cwd::Guard qw(cwd_guard);
use Path::Class qw(dir);
use Archive::Extract;
use File::Temp;

use Pinto::Types qw(File);
use Pinto::Util qw(debug throw);

#-----------------------------------------------------------------------------

our $VERSION = '0.087'; # VERSION

#-----------------------------------------------------------------------------

has archive => (
    is       => 'ro',
    isa      => File,
    required => 1,
    coerce   => 1,
);


has temp_dir => (
    is       => 'ro',
    isa      => 'File::Temp::Dir',
    default  => sub { File::Temp->newdir(CLEANUP => $_[0]->cleanup) },
    lazy     => 1,
);


has cleanup => (
    is       => 'ro',
    isa      => Bool,
    default  => 1,
);

#-----------------------------------------------------------------------------

sub unpack {
    my ($self) = @_;

    my $archive   = $self->archive;
    my $temp_dir  = $self->temp_dir->dirname;
    my $cwd_guard = cwd_guard(getcwd); # Archive::Extract will chdir

    local $Archive::Extract::PREFER_BIN = 1;
    local $Archive::Extract::DEBUG = 1 if ($ENV{PINTO_DEBUG} || 0) > 1;

    my $ae = Archive::Extract->new(archive => $archive);

    debug "Unpacking $archive into $temp_dir";

    my $ok = $ae->extract(to => $temp_dir);
    throw "Failed to unpack $archive: " . $ae->error if not $ok;

    my @children = dir($temp_dir)->children;
    return @children == 1 ? $children[0] : dir($temp_dir);
}

#-----------------------------------------------------------------------------

__PACKAGE__->meta->make_immutable;

#-----------------------------------------------------------------------------

1;

__END__

=pod

=for :stopwords Jeffrey Ryan Thalhammer BenRifkah Karen Etheridge Michael G. Schwern Oleg
Gashev Steffen Schwigon Bergsten-Buret Wolfgang Kinkeldei Yanick Champoux
hesco Cory G Watson Jakob Voss Jeff

=head1 NAME

Pinto::ArchiveUnpacker - Unpack an archive into a temporary directory

=head1 VERSION

version 0.087

=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