Laravel LangGen 🌍

Automatically generate missing translation keys in your Laravel application.

LangGen scans your application code (app and resources/views) for translation keys like __('messages.welcome') or @lang('auth.failed') and automatically creates the corresponding PHP language files.

Unlike other tools, LangGen supports nested array keys (dot-notation) and creates clean, native PHP arrays without needing a database.

🚀 Features

• Auto-Discovery: Scans PHP and Blade files for __(), @lang(), trans().
• JSON Support: Handles keys with spaces or single strings (e.g., __('Log in')) by generating lang/{code}.json.
• Nested Arrays: Converts auth.password.min into ['password' => ['min' => '...']].
• Smart Conflict Handling: Configurable policy to preserve or overwrite existing keys.
• Custom Paths: Configurable directories to scan (e.g., Modules, routes).
• Native PHP Files: Works with standard Laravel lang/*.php files.
• No Database Required: Lightweight and zero-setup.

🎥 Video Tutorial

You can see how LangGen works and how to use it in a real project in this YouTube video:

👉 Watch on YouTube: https://youtu.be/UCr1kR8rMy8

📦 Installation

You can install the package via composer:

composer require azizdevfull/lang-gen --dev

Optionally, you can publish the configuration file:

php artisan vendor:publish --tag="lang-gen-config"

🛠 Usage

Basic Usage

Run the command to scan your codebase and generate missing keys for the default language (default: en):

php artisan lang:gen

Specify Language

To generate translations for a specific language (e.g., Uzbek):

php artisan lang:gen uz

This will:

1. Scan your configured directories (default: app, resources/views, routes).
2. Find all translation keys (nested arrays and JSON strings).
3. Create or update lang/uz/messages.php and lang/uz.json.
4. Populate missing keys with a readable default value (e.g., "Messages Welcome").

⚙️ Configuration

The configuration file config/lang-gen.php allows you to customize the behavior:

<?php

return [
    /*
    |--------------------------------------------------------------------------
    | Scanned Directories
    |--------------------------------------------------------------------------
    |
    | Here you may define the directories that LangGen should scan for
    | translation keys. By default, we scan the 'app', 'resources/views',
    | and 'routes' directories.
    |
    | You can add custom paths here, for example: base_path('Modules')
    |
    */
    'paths' => [
        base_path('app'),
        base_path('resources/views'),
        base_path('routes'),
    ],
    /*
    |--------------------------------------------------------------------------
    | Conflict Policy
    |--------------------------------------------------------------------------
    |
    | Determines how to handle specific key conflicts.
    |
    | Scenario:
    | You have an existing key as a string: 'messages.home' => 'Home'
    | But your code now uses a nested key:  __('messages.home.title')
    |
    | Options:
    | 'preserve'  - Keeps the existing string value. The new nested key is skipped/ignored.
    | 'overwrite' - Replaces the existing string with an array to allow the new nested key.
    |
    */
    'conflict_policy' => 'overwrite', // 'preserve' or 'overwrite'

    /*
    |--------------------------------------------------------------------------
    | Default Language
    |--------------------------------------------------------------------------
    |
    | The default language code to generate translations for.
    | Examples: 'en', 'uz', 'ru'.
    |
    */
    'default_lang' => 'uz',

];

💡 Example

In your code (resources/views/welcome.blade.php):

<h1>{{ __('home.hero.title') }}</h1>
<p>@lang('home.hero.subtitle')</p>

Run command:

php artisan lang:gen en

Result (lang/en/home.php):

<?php

return [
    'hero' => [
        'title' => 'Home Hero Title',
        'subtitle' => 'Home Hero Subtitle',
    ],
];

JSON Key Example

In your code:

<button>{{ __('Create Account') }}</button>

Result (lang/en.json):

{
    "Create Account": "Create Account"
}

🧪 Testing

composer test

🔒 Security

If you discover any security related issues, please email aziz16110904@gmail.com instead of using the issue tracker.

👥 Credits

• Azizbek

📄 License

The MIT License (MIT). Please see License File for more information.