public static function readPackageFile($file)
{
// Sanity
if (!file_exists($file) || !is_file($file) || strtolower(pathinfo($file, PATHINFO_EXTENSION)) != 'tar') {
throw new Engine_Package_Exception('File does not exist or is not a tar file');
}
self::_loadArchiveClass();
// Create archive object
$archive = new Archive_Tar($file);
// List files
$fileList = $archive->listContent();
if (empty($fileList)) {
throw new Engine_Package_Exception('Unable to open archive');
}
// Check for root package file
$rootPackageFile = null;
foreach ($fileList as $arFile) {
if ($arFile['filename'] == 'package.json') {
$rootPackageFile = $arFile['filename'];
break;
}
}
if (null === $rootPackageFile) {
throw new Engine_Package_Exception('Root package file not found.');
}
// Start building package stuff
$packageFileObject = new Engine_Package_Manifest();
$packageFileObject->fromString($archive->extractInString($rootPackageFile), 'json');
return $packageFileObject;
}
