Laravel Discovery

A Laravel package that automatically discovers and caches interface implementations across your codebase and vendor packages.

Features

• Interface Implementation Discovery: Automatically finds all classes that implement specific interfaces
• Caching: Generates cached files for fast runtime lookups
• Vendor Support: Can search through vendor packages for implementations
• Configurable: Flexible configuration for search paths and interfaces
• Artisan Command: Simple command to trigger discovery process

Requirements

• PHP 8.3+
• Laravel 11+

Installation

Install the package via Composer:

composer require encoredigitalgroup/laravel-discovery

The service provider will be automatically registered via Laravel's package auto-discovery.

Add the following to your post-autoload-dump script:

@php artisan discovery:run

This command will:

1. Search for all configured interfaces
2. Find implementing classes in your app, modules, and configured vendor paths
3. Generate cache files in bootstrap/cache/discovery/

Usage

Basic Configuration

Configure the discovery system using the Discovery configuration class:

use EncoreDigitalGroup\LaravelDiscovery\Support\Discovery;

// Add interfaces to discover
Discovery::config()->addInterface(YourInterface::class);

// Add specific vendors to search
Discovery::config()
    ->addVendor("laravel")
    ->addVendor("spatie");

// Or search all vendors (extremely slow, use with caution)
Discovery::config()->searchAllVendors();

Retrieving Cached Results

Access the discovered implementations using the cache method:

use EncoreDigitalGroup\LaravelDiscovery\Support\Discovery;

// Get all implementations of an interface
$implementations = Discovery::cache(YourInterface::class);

Configuration Options

Search Paths

The package searches in the following directories by default:

• app/ - Your application code
• app_modules/ or app-modules/ - If they exist
• Configured vendor directories (when enabled)

Cache Location

Cache files are stored in bootstrap/cache/discovery/ by default. Each interface gets its own cache file named after the interface (e.g., YourInterface.php).

Example

<?php

// Define an interface
interface PaymentGatewayInterface
{
    public function process(float $amount): bool;
}

// Implement the interface
class StripeGateway implements PaymentGatewayInterface
{
    public function process(float $amount): bool
    {
        // Implementation
    }
}

class PayPalGateway implements PaymentGatewayInterface
{
    public function process(float $amount): bool
    {
        // Implementation
    }
}

// Configure discovery
Discovery::config()->addInterface(PaymentGatewayInterface::class);

// Run discovery
// php artisan discovery:run

// Use the cached results
$gateways = Discovery::cache(PaymentGatewayInterface::class);
// Returns: ['App\\StripeGateway', 'App\\PayPalGateway']

How It Works

1. Scanning: The package uses PHP-Parser to analyze PHP files and identify classes that implement specified interfaces
2. Directory Traversal: Scans the following directories:
   • app/ - Your application code
   • app_modules/ or app-modules/ - Modular application code (if present)
   • Vendor directories (when configured)
3. Caching: Generates PHP cache files in bootstrap/cache/discovery/ for each interface

Vendors and Interfaces are scanned/searched only once during Discovery

For example:

• Package A configures Discovery to search for Interface 1.
• Package B also configures Discovery to search for Interface 1.
• Interface 1 will only be searched for once.
• Interface 1 will be searched for in all locations configured by all packages.

Testing

Run the test suite:

composer test

License

This repository is licensed under a modified BSD-3-Clause License.

Contributing

Contributions are governed by the Encore Digital Group Contribution Terms.