NAME

CPANPLUS::Internals::Extract - internals for archive extraction

SYNOPSIS

    ### for source files ###
    $self->_gunzip( file => 'foo.gz', output => 'blah.txt' );

    ### for modules/packages ###
    $dir = $self->_extract( module      => $modobj,
                            extractdir  => '/some/where' );

DESCRIPTION

CPANPLUS::Internals::Extract extracts compressed files for CPANPLUS. It can do this by either a pure perl solution (preferred) with the use of "Archive::Tar" and "Compress::Zlib", or with binaries, like "gzip" and "tar".

The flow looks like this:

    $cb->_extract
        Delegate to Archive::Extract

METHODS

$dir = _extract( module => $modobj, [perl => '/path/to/perl', extractdir => '/path/to/extract/to', prefer_bin => BOOL, verbose => BOOL, force => BOOL] )

"_extract" will take a module object and extract it to "extractdir" if provided, or the default location which is obtained from your config.

The file name is obtained by looking at "$modobj->status->fetch" and will be parsed to see if it's a tar or zip archive.

If it's a zip archive, "__unzip" will be called, otherwise "__untar" will be called. In the unlikely event the file is of neither format, an error will be thrown.

"_extract" takes the following options:

module: A "CPANPLUS::Module" object. This is required.
extractdir: The directory to extract the archive to. By default this looks something like: /CPANPLUS_BASE/PERL_VERSION/BUILD/MODULE_NAME
prefer_bin: A flag indicating whether you prefer a pure perl solution, ie "Archive::Tar" or "Archive::Zip" respectively, or a binary solution like "unzip" and "tar".
perl: The path to the perl executable to use for any perl calls. Also used to determine the build version directory for extraction.
verbose: Specifies whether to be verbose or not. Defaults to your corresponding config entry.
force: Specifies whether to force the extraction or not. Defaults to your corresponding config entry.

All other options are passed on verbatim to "__unzip" or "__untar".

Returns the directory the file was extracted to on success and false on failure.