Is there a way to install symfony3 complete with a composer.json? - symfony

Question

all my Code is splitted into bundles, which i require with the composer.json.
Now i want to install the whole project with composer install, but when i try it out, the symfony folders doesn't appear and i get the following error message:
[RuntimeException]
Could not scan for classes inside "app/AppKernel.php" which does not appear to be a file nor a folder
Is there a way to request the symfony installation files ?
This is my composer.json:
{
"name": "mygloriousname",
"license": "proprietary",
"type": "project",
"autoload": {
"psr-4": {
"": "src/"
},
"classmap": [
"app/AppKernel.php",
"app/AppCache.php"
]
},
"autoload-dev": {
"psr-4": {
"Tests\\": "tests/"
}
},
"require": {
"php": ">=5.5.9",
"symfony/symfony": "3.1.*",
"doctrine/orm": "^2.5",
"doctrine/doctrine-bundle": "^1.6",
"doctrine/doctrine-cache-bundle": "^1.2",
"symfony/swiftmailer-bundle": "^2.3",
"symfony/monolog-bundle": "^2.8",
"symfony/polyfill-apcu": "^1.0",
"sensio/distribution-bundle": "^5.0",
"sensio/framework-extra-bundle": "^3.0.2",
"incenteev/composer-parameter-handler": "^2.0"
},
"require-dev": {
"sensio/generator-bundle": "^3.0",
"symfony/phpunit-bridge": "^3.0"
},
"scripts": {
"post-install-cmd": [
"Incenteev\\ParameterHandler\\ScriptHandler::buildParameters",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::clearCache",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installRequirementsFile",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::prepareDeploymentTarget"
],
"post-update-cmd": [
"Incenteev\\ParameterHandler\\ScriptHandler::buildParameters",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::clearCache",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installRequirementsFile",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::prepareDeploymentTarget"
]
},
"extra": {
"symfony-app-dir": "app",
"symfony-bin-dir": "bin",
"symfony-var-dir": "var",
"symfony-web-dir": "web",
"symfony-tests-dir": "tests",
"symfony-assets-install": "relative",
"incenteev-parameters": {
"file": "app/config/parameters.yml"
}
}
}

Answer 1

I think what you are looking for is create-project.
This is how you can install Symfony via composer
composer create-project symfony/framework-standard-edition my_project_name
This command does the following steps:
takes the project for symfony/framework-standard-edition from packagist
downloads the repository: https://github.com/symfony/symfony-standard
runs composer install in that newly downloaded project
edit: Obviously for your use case you have to replace symfony/framework-standard-edition with your project identifier and either put it on packagist, your own composer repository (e.g. with Toran Proxy) or register the repository in your global composer config.
You can probably find a few more examples usually as part of some kind of skeleton application.
While this is doable it's not the preferred way for deploying an application for a good reason. You can't just update a project like this only replace the existing one, which will cause downtime or require some symlink-juggling and even then has some drawbacks. Also you still have to run all the initial setup steps, like specifying the database connection info, each time. You could work around this (or manually type in all these parameters), but having a real deployment tool for example using ansible will be a much better choice for a scenario like this.