1 package Git::PurePerl::Pack::WithIndex;
3 use MooseX::StrictConstructor;
4 use namespace::autoclean;
6 extends 'Git::PurePerl::Pack';
8 has 'index_filename' =>
9 ( is => 'rw', isa => 'Path::Class::File', required => 0, coerce => 1 );
11 ( is => 'rw', isa => 'Git::PurePerl::PackIndex', required => 0 );
15 my $index_filename = $self->filename;
16 $index_filename =~ s/\.pack/.idx/;
17 $self->index_filename($index_filename);
19 my $index_fh = IO::File->new($index_filename) || confess($!);
21 $index_fh->read( my $signature, 4 );
22 $index_fh->read( my $version, 4 );
23 $version = unpack( 'N', $version );
26 if ( $signature eq "\377tOc" ) {
27 if ( $version == 2 ) {
29 Git::PurePerl::PackIndex::Version2->new(
30 filename => $index_filename
34 confess("Unknown version");
38 Git::PurePerl::PackIndex::Version1->new(
39 filename => $index_filename
46 my ( $self, $want_sha1 ) = @_;
47 my $offset = $self->index->get_object_offset($want_sha1);
48 return unless $offset;
49 return $self->unpack_object($offset);
52 __PACKAGE__->meta->make_immutable;