Symfony Flex is a Composer plugin for Symfony. It hooks into the installation process. When it detects a package for which it has a recipe, it executes it. It automates the most common tasks of Symfony applications, like installing and removing bundles and other Composer dependencies.
The main entry point of a Symfony Recipe is a manifest.json file that describes the operations that need to be done to automatically register the package in a Symfony application. Look at framework-bundle recipe.
composer require mailer
In your project symfony.lock will be created. This file is managed by Flex.
It keeps track of which recipes have been installed.
Whenever you install a package, Flex will execute the recipe for that package, if there is one.
Recipes can add configuration files, create directories, or even modify files like .gitignore
or config/bundles.php so that the library instantly works without any extra setup.
Repository for recipes:
- Official: https://github.com/symfony/recipes
- Unofficial: https://github.com/symfony/recipes-contrib
- Show project's installed recipes:
composer recipes
- Show details about recipe:
composer recipes symfony/routing
- Update recipes:
composer recipes:update