Not as part of asset_path() no, I don’t believe so. You can check out the code behind it right here: https://github.com/roots/sage-lib/blob/master/Assets/JsonManifest.php
I’ve never needed to determine existence of an asset, but I have needed to get the absolute path (i.e. for embedding SVGs), and I used the following technique:
// in /theme/config/assets.php add the following to the array:
'path' => get_theme_file_path().'/dist',
// in `app/helpers.php` add the following:
/**
* Get the absolute path to an asset.
*
* @param string $asset
* @return string
*/
function locate_asset($asset)
{
return trailingslashit(config('assets.path')) . sage('assets')->get($asset);
}
// Now you can do something like this:
/**
* Determine if asset exists.
*
* @param string $asset
* @return bool
*/
function asset_exists($asset)
{
return file_exists(locate_asset($asset));
}