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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| package MetaCPAN::Model::Archive; | ||
|
|
||
| use v5.10; | ||
| use Moose; | ||
| use MooseX::StrictConstructor; | ||
| use MetaCPAN::Types qw(AbsFile AbsDir Bool); | ||
|
|
||
| use Archive::Any; | ||
| use Carp; | ||
| use File::Temp (); | ||
| use Path::Class (); | ||
|
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||
| =head1 NAME | ||
| MetaCPAN::Model::Archive - Inspect and extract archive files | ||
| =head1 SYNOPSIS | ||
| use MetaCPAN::Model::Archive; | ||
| my $archive = MetaCPAN::Model::Archive->new( file => $some_file ); | ||
| my $files = $archive->files; | ||
| my $extraction_dir = $archive->extract; | ||
| =head1 DESCRIPTION | ||
| This class manages getting information about and extraction of archive | ||
| files (tarballs, zipfiles, etc...) and their extraction directories. | ||
| The object is read-only and will only extract once. If you alter the | ||
| extraction directory and want a fresh one, make a new object. | ||
| The Archive will clean up its extraction directory upon destruction. | ||
| =head1 ATTRIBUTES | ||
| =head3 archive | ||
| I<Required> | ||
| The file to be extracted. It will be returned as a Path::Class | ||
| object. | ||
| =cut | ||
|
|
||
| has file => ( | ||
| is => 'ro', | ||
| isa => AbsFile, | ||
| coerce => 1, | ||
| required => 1, | ||
| ); | ||
|
|
||
| has _extractor => ( | ||
| is => 'ro', | ||
| isa => 'Archive::Any', | ||
| handles => [ | ||
| qw( | ||
| is_impolite | ||
| is_naughty | ||
| ) | ||
| ], | ||
| init_arg => undef, | ||
| lazy => 1, | ||
| default => sub { | ||
| my $self = shift; | ||
| croak $self->file . ' does not exist' unless -e $self->file; | ||
| return Archive::Any->new( $self->file ); | ||
| }, | ||
| ); | ||
|
|
||
| # Holding the File::Temp::Dir object here is necessary to keep it | ||
| # alive until the object is destroyed. Path::Class::Dir will not hold | ||
| # onto the ojbect. | ||
| has _tempdir => ( | ||
| is => 'ro', | ||
| isa => 'File::Temp::Dir', | ||
| init_arg => undef, | ||
| lazy => 1, | ||
| default => sub { | ||
| return File::Temp->newdir; | ||
| }, | ||
| ); | ||
|
|
||
| has extract_dir => ( | ||
| is => 'ro', | ||
| isa => AbsDir, | ||
| lazy => 1, | ||
| coerce => 1, | ||
| default => sub { | ||
| my $self = shift; | ||
| return Path::Class::Dir->new( $self->_tempdir ); | ||
| }, | ||
| ); | ||
|
|
||
| has _has_extracted => ( | ||
| is => 'rw', | ||
| isa => Bool, | ||
| init_arg => undef, | ||
| default => 0, | ||
| ); | ||
|
|
||
| =head1 METHODS | ||
| =head3 files | ||
| my $files = $archive->files; | ||
| A list of the files in the archive as an array ref. | ||
| =cut | ||
|
|
||
| # A cheap way to cache the result. | ||
| has files => ( | ||
| is => 'ro', | ||
| isa => 'ArrayRef', | ||
| init_arg => undef, | ||
| lazy => 1, | ||
| default => sub { | ||
| my $self = shift; | ||
| return [ $self->_extractor->files ]; | ||
| }, | ||
| ); | ||
|
|
||
| =head3 extract | ||
| my $extract_dir = $archive->extract; | ||
| Extract the archive into a temp directory. The directory will be a | ||
| L<Path::Class::Dir>. | ||
| Only the first call to extract will perform the extraction. After | ||
| that it will just return the extraction directory. If you want to | ||
| re-extract the archive, create a new object. | ||
| The extraction directory will be cleaned up when the object is destroyed. | ||
| =cut | ||
|
|
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| sub extract { | ||
| my $self = shift; | ||
|
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| return $self->extract_dir if $self->_has_extracted; | ||
|
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| $self->_extractor->extract( $self->extract_dir ); | ||
| $self->_has_extracted(1); | ||
|
|
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| return $self->extract_dir; | ||
| } | ||
|
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||
| 1; |
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