Add a new "core" bundle which other bundles can depend on.

This is meant to for sharing code between the main app and the bundles

.gitignore

+/vendor
+/composer.lock
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README.md

+# API-Core-Bundle
+
+Contains things required by all bundles
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composer.json

+{
+    "name": "dbp/api-core-bundle",
+    "type": "symfony-bundle",
+    "license": "AGPL-3.0-or-later",
+    "require": {
+        "php": "^7.2.24",
+        "api-platform/core": "^2.4",
+        "symfony/framework-bundle": "^4.1.12"
+    },
+    "require-dev": {
+        "symfony/phpunit-bridge": "^4.4",
+        "vimeo/psalm": "^3.12",
+        "phpstan/phpstan": "^0.12.33",
+        "phpstan/phpstan-phpunit": "^0.12.13"
+    },
+    "autoload": {
+        "psr-4": {
+            "DBP\\API\\CoreBundle\\": "src/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+          "DBP\\API\\CoreBundle\\Tests\\": "tests/"
+        }
+    },
+    "config": {
+        "sort-packages": true,
+        "platform": {
+          "php": "7.2.24"
+        }
+    },
+    "scripts": {
+        "test": [
+            "@php vendor/bin/simple-phpunit"
+        ],
+        "phpstan": [
+            "@php vendor/bin/phpstan analyze --ansi"
+        ],
+        "psalm": [
+            "@php vendor/bin/psalm"
+        ],
+        "lint": [
+            "@composer run phpstan",
+            "@composer run psalm"
+        ]
+    }
+}

phpstan.neon

+includes:
+    - vendor/phpstan/phpstan-phpunit/extension.neon
+
+parameters:
+    inferPrivatePropertyTypeFromConstructor: true
+    level: 3
+    paths:
+        - src
+        - tests
+    bootstrapFiles:
+        - vendor/bin/.phpunit/phpunit-8-0/vendor/autoload.php
+    excludes_analyse:
+        - tests/bootstrap.php
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phpunit.xml.dist

+<?xml version="1.0" encoding="UTF-8"?>
+
+<!-- https://phpunit.de/manual/current/en/appendixes.configuration.html -->
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/6.5/phpunit.xsd"
+         backupGlobals="false"
+         colors="true"
+         bootstrap="tests/bootstrap.php"
+>
+    <php>
+        <ini name="error_reporting" value="-1" />
+        <server name="APP_ENV" value="test" force="true" />
+        <server name="KERNEL_CLASS" value="App\Kernel" />
+        <server name="SHELL_VERBOSITY" value="-1" />
+        <server name="SYMFONY_PHPUNIT_REMOVE" value="" />
+        <server name="SYMFONY_PHPUNIT_VERSION" value="8" />
+    </php>
+
+    <testsuites>
+        <testsuite name="Project Test Suite">
+            <directory>tests</directory>
+        </testsuite>
+    </testsuites>
+
+    <filter>
+        <whitelist>
+            <directory>src</directory>
+            <directory>tests</directory>
+        </whitelist>
+    </filter>
+
+    <listeners>
+        <listener class="Symfony\Bridge\PhpUnit\SymfonyTestsListener" />
+    </listeners>
+</phpunit>

psalm.xml

+<?xml version="1.0"?>
+<psalm
+    totallyTyped="false"
+    errorLevel="5"
+    resolveFromConfigFile="true"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xmlns="https://getpsalm.org/schema/config"
+    xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
+>
+    <projectFiles>
+        <directory name="src" />
+        <ignoreFiles>
+            <directory name="vendor" />
+        </ignoreFiles>
+    </projectFiles>
+</psalm>

src/DbpCoreBundle.php

+<?php
+
+namespace DBP\API\CoreBundle;
+
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\HttpKernel\Bundle\Bundle;
+
+class DbpCoreBundle extends Bundle
+{
+    public function build(ContainerBuilder $container)
+    {
+        
+    }
+}
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src/DependencyInjection/Configuration.php

+<?php
+
+namespace DBP\API\CoreBundle\DependencyInjection;
+
+use Symfony\Component\Config\Definition\Builder\TreeBuilder;
+use Symfony\Component\Config\Definition\ConfigurationInterface;
+
+class Configuration implements ConfigurationInterface
+{
+    public function getConfigTreeBuilder()
+    {
+        $treeBuilder = new TreeBuilder('dbp_core');
+        return $treeBuilder;
+    }
+}
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src/DependencyInjection/DbpCoreExtension.php

+<?php
+
+namespace DBP\API\CoreBundle\DependencyInjection;
+
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\Config\FileLocator;
+use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
+use Symfony\Component\HttpKernel\DependencyInjection\ConfigurableExtension;
+
+class DbpCoreExtension extends ConfigurableExtension
+{
+    public function loadInternal(array $configs, ContainerBuilder $container)
+    {
+        $loader = new YamlFileLoader(
+            $container,
+            new FileLocator(__DIR__.'/../Resources/config')
+        );
+        $loader->load('services.yaml');
+    }
+}
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src/Resources/config/services.yaml

+services:
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tests/bootstrap.php

+<?php
+
+use Symfony\Component\Dotenv\Dotenv;
+
+require dirname(__DIR__).'/vendor/autoload.php';
+
+if (file_exists(dirname(__DIR__).'/config/bootstrap.php')) {
+    require dirname(__DIR__).'/config/bootstrap.php';
+} elseif (method_exists(Dotenv::class, 'bootEnv')) {
+    (new Dotenv())->bootEnv(dirname(__DIR__).'/.env');
+}