Laravel doesn't support event discovery if used within a package

[WoLfulus]

• Laravel Version: 7.5.2
• PHP Version: 7.4.3
• Database Driver & Version: n/a

Description:

It seems that classFromFile doesn't resolve the class name correctly from packages.
Also, might be related to #28187 and #28121.

Steps To Reproduce:

• Create a package
• Create some listeners under Listeners folder
• Create an event service provider for the package and register it for loading

<?php

declare(strict_types=1);

namespace My\Package;

use Illuminate\Foundation\Support\Providers\EventServiceProvider;

class EventsProvider extends EventServiceProvider
{
    public function shouldDiscoverEvents(): bool
    {
        return true;
    }

    public function discoverEventsWithin(): array
    {
        return [
            __DIR__.'/Listeners'
        ];
    }
}

• Install the package on a project
• php artisan event:list no events loaded

Events won't be discovered because classFromFile will return Vendor\my\package\Listeners\ListenerName instead of My\Package\Listeners\MyListener.

https://github.com/laravel/framework/blob/7.x/src/Illuminate/Foundation/Events/DiscoverEvents.php#L75

The error is supressed with a continue

https://github.com/laravel/framework/blob/7.x/src/Illuminate/Foundation/Events/DiscoverEvents.php#L47

I'm wondering, is this going to be supported eventually?

[driesvints]

Event discovery is only available for your app atm. If you want this to be supported feel free to open an issue on the ideas repo.