public static function getManifestPath($plugin)
    {
        if (self::loaded($plugin)) {
            return FS::clean(self::path($plugin) . DS . self::PLUGIN_MANIFEST);
        }

        return null;
    }
public static function getManifestPath($plugin)
    {
        if (self::loaded($plugin)) {
            return FS::clean(self::path($plugin) . DS . self::PLUGIN_MANIFEST);
        }

        return null;
    }
public static function getManifestPath ( $ plugin ) { if ( self :: loaded ( $ plugin ) ) { return FS :: clean ( self :: path ( $ plugin ) . DS . self :: PLUGIN_MANIFEST ) ; } return null ; }
Get absolute plugin manifest file path.

@param string $plugin
@return null|string
Get absolute plugin manifest file path .