feat: add initial validation of build.yaml

composer.json

@@ -3,6 +3,7 @@
         "illuminate/support": "^9.50",
         "symfony/console": "^6.2",
         "symfony/filesystem": "^6.2",
+        "symfony/validator": "^6.2",
         "symfony/yaml": "^6.2",
         "twig/twig": "^3.5"
     },

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "2920bd7876ea4f69e4b8a8fc1033ff31",
+    "content-hash": "61a819cfeb5a3812904360f37d501b98",
     "packages": [
         {
             "name": "amphp/amp",
@@ -3458,6 +3458,114 @@
             ],
             "time": "2022-11-25T10:21:52+00:00"
         },
+        {
+            "name": "symfony/validator",
+            "version": "v6.2.5",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/validator.git",
+                "reference": "0ebfbe384790e61147e3d7f4aa0afbd6190198c4"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/validator/zipball/0ebfbe384790e61147e3d7f4aa0afbd6190198c4",
+                "reference": "0ebfbe384790e61147e3d7f4aa0afbd6190198c4",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.1",
+                "symfony/deprecation-contracts": "^2.1|^3",
+                "symfony/polyfill-ctype": "~1.8",
+                "symfony/polyfill-mbstring": "~1.0",
+                "symfony/translation-contracts": "^1.1|^2|^3"
+            },
+            "conflict": {
+                "doctrine/annotations": "<1.13",
+                "doctrine/lexer": "<1.1",
+                "phpunit/phpunit": "<5.4.3",
+                "symfony/dependency-injection": "<5.4",
+                "symfony/expression-language": "<5.4",
+                "symfony/http-kernel": "<5.4",
+                "symfony/intl": "<5.4",
+                "symfony/property-info": "<5.4",
+                "symfony/translation": "<5.4",
+                "symfony/yaml": "<5.4"
+            },
+            "require-dev": {
+                "doctrine/annotations": "^1.13|^2",
+                "egulias/email-validator": "^2.1.10|^3|^4",
+                "symfony/cache": "^5.4|^6.0",
+                "symfony/config": "^5.4|^6.0",
+                "symfony/console": "^5.4|^6.0",
+                "symfony/dependency-injection": "^5.4|^6.0",
+                "symfony/expression-language": "^5.4|^6.0",
+                "symfony/finder": "^5.4|^6.0",
+                "symfony/http-client": "^5.4|^6.0",
+                "symfony/http-foundation": "^5.4|^6.0",
+                "symfony/http-kernel": "^5.4|^6.0",
+                "symfony/intl": "^5.4|^6.0",
+                "symfony/mime": "^5.4|^6.0",
+                "symfony/property-access": "^5.4|^6.0",
+                "symfony/property-info": "^5.4|^6.0",
+                "symfony/translation": "^5.4|^6.0",
+                "symfony/yaml": "^5.4|^6.0"
+            },
+            "suggest": {
+                "egulias/email-validator": "Strict (RFC compliant) email validation",
+                "psr/cache-implementation": "For using the mapping cache.",
+                "symfony/config": "",
+                "symfony/expression-language": "For using the Expression validator and the ExpressionLanguageSyntax constraints",
+                "symfony/http-foundation": "",
+                "symfony/intl": "",
+                "symfony/property-access": "For accessing properties within comparison constraints",
+                "symfony/property-info": "To automatically add NotNull and Type constraints",
+                "symfony/translation": "For translating validation errors.",
+                "symfony/yaml": ""
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\Validator\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Provides tools to validate values",
+            "homepage": "https://symfony.com",
+            "support": {
+                "source": "https://github.com/symfony/validator/tree/v6.2.5"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2023-01-20T17:45:48+00:00"
+        },
         {
             "name": "symfony/var-dumper",
             "version": "v6.2.3",

src/Console/Command/BuildConfigurationCommand.php

@@ -15,6 +15,9 @@ use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Console\Style\SymfonyStyle;
 use Symfony\Component\Filesystem\Filesystem;
+use Symfony\Component\Validator\Constraints as Assert;
+use Symfony\Component\Validator\ConstraintViolation;
+use Symfony\Component\Validator\Validation;
 use Symfony\Component\Yaml\Yaml;
 use Twig\Environment;
 
@@ -53,8 +56,51 @@ final class BuildConfigurationCommand extends Command
         $io = new SymfonyStyle($input, $output);
 
         $configurationData = Yaml::parseFile($configFile);
-        $configurationData['dockerCompose'] = $configurationData['docker-compose'];
+
-        $configurationData['docker-compose'] = null;
+        $validator = Validation::createValidator();
+        $groups = new Assert\GroupSequence(['Default', 'custom']);
+        $constraint = new Assert\Collection(
+            [
+                'name' => [
+                    new Assert\NotNull(),
+                    new Assert\Type('string'),
+                    new Assert\Length(['min' => 1]),
+                ],
+
+                'language' => [
+                    new Assert\NotNull(),
+                    new Assert\Type('string'),
+                    new Assert\Choice(['php']),
+                ],
+
+                'type' => [
+                    new Assert\NotNull(),
+                    new Assert\Type('string'),
+                    new Assert\Choice(['drupal-project', 'php-library']),
+                ],
+
+                'database' => new Assert\Optional(),
+
+                'docker-compose' => new Assert\Optional(),
+
+                'dockerfile' => new Assert\Optional(),
+
+                'php' => new Assert\Optional(),
+            ],
+        );
+
+        $violations = $validator->validate($configurationData, $constraint, $groups);
+        if (0 < $violations->count()) {
+            $io->error('Configuration is invalid.');
+
+            $io->listing(
+                collect($violations)
+                    ->map(fn(ConstraintViolation $v) => "{$v->getInvalidValue()} - {$v->getMessage()}")
+                    ->toArray()
+            );
+
+            return Command::FAILURE;
+        }
 
         if (isset($configurationData['docker-compose'])) {
             $configurationData['dockerCompose'] = $configurationData['docker-compose'];