!!!Remove compat with older SF versions

Also drop the possibility to configure a template file
to be included with a cleaner way to expose env vars
with different adapters.

Raise PHP requirement to 7.2

.travis.yml

@@ -1,8 +1,6 @@
 language: php
 
 php:
-  - 7.0
-  - 7.1
   - 7.2
   - 7.3
   - 7.4

README.md

@@ -36,7 +36,7 @@ You configure dotenv connector in the extra section of the root `composer.json`
   "extra": {
       "helhum/dotenv-connector": {
           "env-file": ".env",
-          "include-template-file": "{$vendor-dir}/helhum/dotenv-connector/res/PHP/dotenv-include.php.tmpl"
+          "adapter": "Helhum\\DotEnvConnector\\Adapter\\SymfonyDotEnv"
       }
     }
 ```
@@ -52,17 +52,17 @@ you have to be aware of that values with literal `$` signs
 need to be enclosed in single quotes.
 This may be the case if you use hashed values of credentials you pass via `.env`, for example.
 
-#### `include-template-file`
-You can specify a relative path from the base directory,
-if you need a different template for the to be created include file.
+#### `adapter`
+You can specify a class that implements `\Helhum\DotEnvConnector\DotEnvVars` interface,
+if you need a different way to expose env vars.
+
+*The default value* is "Helhum\DotEnvConnector\Adapter\SymfonyDotEnv",
+which uses symfony/dotenv default parsing of the one .env file.
 
-*The default value* is "{$vendor-dir}/helhum/dotenv-connector/res/PHP/dotenv-include.php.tmpl", which uses the
-default template, which uses symfony/dotenv default parsing of the one .env file.
-Change this option with great care and at your own risk.
 This could be useful though e.g. if you prefer to use another dotenv parsing library to expose the variables defined in .env
 or you want to switch to another parsing strategy of the Symfony dotenv parsing. In the latter case use
-"{$vendor-dir}/helhum/dotenv-connector/res/PHP/dotenv-include-sf-loadenv.php.tmpl" as value for this option.
-Have a look at the existing template files for examples for your own files in case you need them.
+"Helhum\DotEnvConnector\Adapter\SymfonyLoadEnv" as value for this option.
+Have a look at the existing implementations for examples.
 
 ## Feedback
 

composer.json

@@ -19,19 +19,16 @@
         }
     },
     "require": {
-        "php": "^7.0",
+        "php": "^7.2",
         "composer-plugin-api": "^1.0 || ^2.0",
-        "symfony/dotenv": "^3.3.0 || ^4.0 || ^5.0"
+        "symfony/dotenv": "^5.1"
     },
     "require-dev": {
         "composer/composer": "^1.0 || 2.0.*@dev",
         "phpunit/phpunit": "^5",
         "mikey179/vfsstream": "^1.6.0",
         "composer/semver": "^1.0 || 2.0.*@dev"
     },
-    "conflict": {
-        "symfony/dotenv": ">=5.1.0"
-    },
     "extra": {
         "class": "Helhum\\DotEnvConnector\\Plugin",
         "branch-alias": {

res/PHP/dotenv-include.php.tmpl

@@ -1,6 +1,5 @@
 <?php
 call_user_func(static function($dotEnvFile) {
-    if (!getenv('APP_ENV') && file_exists($dotEnvFile)) {
-        (new \Symfony\Component\Dotenv\Dotenv(true))->load($dotEnvFile);
-    }
+    $class = '{$adapter}';
+    (new $class())->exposeToEnvironment($dotEnvFile);
 }, '{$env-file}');

src/Adapter/SymfonyDotEnv.php

@@ -0,0 +1,18 @@
+<?php
+declare(strict_types=1);
+namespace Helhum\DotEnvConnector\Adapter;
+
+use Helhum\DotEnvConnector\DotEnvVars;
+use Symfony\Component\Dotenv\Dotenv;
+
+class SymfonyDotEnv implements DotEnvVars
+{
+    public function exposeToEnvironment(string $dotEnvFile): void
+    {
+        if (!getenv('APP_ENV') && file_exists($dotEnvFile)) {
+            $dotEnv = new Dotenv();
+            $dotEnv->usePutenv();
+            $dotEnv->load($dotEnvFile);
+        }
+    }
+}

src/Adapter/SymfonyLoadEnv.php

@@ -0,0 +1,18 @@
+<?php
+declare(strict_types=1);
+namespace Helhum\DotEnvConnector\Adapter;
+
+use Helhum\DotEnvConnector\DotEnvVars;
+use Symfony\Component\Dotenv\Dotenv;
+
+class SymfonyLoadEnv implements DotEnvVars
+{
+    public function exposeToEnvironment(string $dotEnvFile): void
+    {
+        if (file_exists($dotEnvFile)) {
+            $dotEnv = new Dotenv();
+            $dotEnv->usePutenv();
+            $dotEnv->loadEnv($dotEnvFile);
+        }
+    }
+}

src/Config.php

@@ -10,16 +10,18 @@
  * file that was distributed with this source code.
  */
 
+use Helhum\DotEnvConnector\Adapter\SymfonyDotEnv;
+
 class Config
 {
-    const RELATIVE_PATHS = 1;
+    private const RELATIVE_PATHS = 1;
 
     /**
      * @var array
      */
     public static $defaultConfig = [
         'env-file' => '.env',
-        'include-template-file' => '{$vendor-dir}/helhum/dotenv-connector/res/PHP/dotenv-include.php.tmpl',
+        'adapter' => SymfonyDotEnv::class,
     ];
 
     /**
@@ -71,8 +73,9 @@ public function get($key, $flags = 0)
             return null;
         }
         switch ($key) {
+            case 'adapter':
+                return $this->config[$key];
             case 'env-file':
-            case 'include-template-file':
                 $val = rtrim($this->process($this->config[$key], $flags), '/\\');
                 return ($flags & self::RELATIVE_PATHS === 1) ? $val : $this->realpath($val);
             default:

src/DotEnvVars.php

@@ -0,0 +1,9 @@
+<?php
+declare(strict_types=1);
+
+namespace Helhum\DotEnvConnector;
+
+interface DotEnvVars
+{
+    public function exposeToEnvironment(string $dotEnvFile): void;
+}

src/IncludeFile.php

@@ -13,9 +13,12 @@
 use Composer\Autoload\ClassLoader;
 use Composer\Composer;
 use Composer\Util\Filesystem;
+use Helhum\DotEnvConnector\Adapter\SymfonyDotEnv;
 
 class IncludeFile
 {
+    private const defaultTemplate = __DIR__ . '/../res/PHP/dotenv-include.php.tmpl';
+
     /**
      * @var Config
      */
@@ -43,25 +46,25 @@ class IncludeFile
      */
     private $filesystem;
 
-    public function __construct(Config $config, $loader, $includeFile = '', $includeFileTemplate = '', Filesystem $filesystem = null)
+    public function __construct(Config $config, ClassLoader $loader, string $includeFile = '', string $includeFileTemplate = null, Filesystem $filesystem = null)
     {
         $this->config = $config;
         $this->loader = $loader;
         $this->includeFile = $includeFile;
-        $this->includeFileTemplate = $includeFileTemplate ?: $config->get('include-template-file');
+        $this->includeFileTemplate = $includeFileTemplate ?? self::defaultTemplate;
         $this->filesystem = $filesystem ?: new Filesystem();
     }
 
     public function dump(): bool
     {
+        $this->loader->register();
         $this->filesystem->ensureDirectoryExists(dirname($this->includeFile));
         $successfullyWritten = false !== @file_put_contents($this->includeFile, $this->getIncludeFileContent());
         if ($successfullyWritten) {
             // Expose env vars of a possibly available .env file for following composer plugins
-            $this->loader->register();
             require $this->includeFile;
-            $this->loader->unregister();
         }
+        $this->loader->unregister();
 
         return $successfullyWritten;
     }
@@ -75,21 +78,18 @@ public function dump(): bool
      */
     private function getIncludeFileContent(): string
     {
-        if (!file_exists($this->includeFileTemplate)) {
-            if (!empty($this->includeFileTemplate)) {
-                throw new \RuntimeException('Include file template defined for helhum/dotenv-connector does not exist!', 1581515568);
-            }
-            // We get here when include file template is empty, which could be a misconfiguration, but more likely happens
-            // during plugin package upgrades. In this case we provide the default value for smoother upgrades.
-            $this->includeFileTemplate = __DIR__ . '/../res/PHP/dotenv-include.php.tmpl';
-        }
         $envFile = $this->config->get('env-file');
+        $adapterClass = $this->config->get('adapter') ?: SymfonyDotEnv::class;
+        if (!in_array(DotEnvVars::class ,class_implements($adapterClass), true)) {
+            throw new \RuntimeException(sprintf('Adapter "%s" does not implement DotEnvVars interface', $adapterClass), 1598957197);
+        }
         $pathToEnvFileCode = $this->filesystem->findShortestPathCode(
             $this->includeFile,
             $envFile
         );
         $includeFileContent = file_get_contents($this->includeFileTemplate);
         $includeFileContent = $this->replaceToken('env-file', $pathToEnvFileCode, $includeFileContent);
+        $includeFileContent = $this->replaceToken('adapter', '\\' . $adapterClass . '::class', $includeFileContent);
 
         return $includeFileContent;
     }

tests/Unit/IncludeFileTest.php

@@ -2,6 +2,7 @@
 namespace Helhum\DotEnvConnector\Tests\Unit;
 
 use Composer\Autoload\ClassLoader;
+use Helhum\DotEnvConnector\Adapter\SymfonyDotEnv;
 use Helhum\DotEnvConnector\Config;
 use Helhum\DotEnvConnector\IncludeFile;
 
@@ -29,7 +30,7 @@ public function dumpDumpsFile()
     {
         $configProphecy = $this->prophesize(Config::class);
         $configProphecy->get('env-file')->willReturn(__DIR__ . '/Fixtures/env/.env');
-        $configProphecy->get('include-template-file')->willReturn(__DIR__ . '/../../res/PHP/dotenv-include.php.tmpl');
+        $configProphecy->get('adapter')->willReturn(SymfonyDotEnv::class);
         $loaderProphecy = $this->prophesize(ClassLoader::class);
         $loaderProphecy->register()->shouldBeCalled();
         $loaderProphecy->unregister()->shouldBeCalled();
@@ -47,7 +48,7 @@ public function includingFileExposesEnvVars()
     {
         $configProphecy = $this->prophesize(Config::class);
         $configProphecy->get('env-file')->willReturn(__DIR__ . '/Fixtures/env/.env');
-        $configProphecy->get('include-template-file')->willReturn(__DIR__ . '/../../res/PHP/dotenv-include.php.tmpl');
+        $configProphecy->get('adapter')->willReturn(SymfonyDotEnv::class);
         $loaderProphecy = $this->prophesize(ClassLoader::class);
         $loaderProphecy->register()->shouldBeCalled();
         $loaderProphecy->unregister()->shouldBeCalled();
@@ -68,7 +69,7 @@ public function includingFileDoesNothingIfEnvVarSet()
         putenv('APP_ENV=1');
         $configProphecy = $this->prophesize(Config::class);
         $configProphecy->get('env-file')->willReturn(__DIR__ . '/Fixtures/env/.env');
-        $configProphecy->get('include-template-file')->willReturn(__DIR__ . '/../../res/PHP/dotenv-include.php.tmpl');
+        $configProphecy->get('adapter')->willReturn(SymfonyDotEnv::class);
         $loaderProphecy = $this->prophesize(ClassLoader::class);
         $loaderProphecy->register()->shouldBeCalled();
         $loaderProphecy->unregister()->shouldBeCalled();
@@ -88,7 +89,7 @@ public function includingFileDoesNothingIfEnvFileDoesNotExist()
     {
         $configProphecy = $this->prophesize(Config::class);
         $configProphecy->get('env-file')->willReturn(__DIR__ . '/Fixtures/env/.no-env');
-        $configProphecy->get('include-template-file')->willReturn(__DIR__ . '/../../res/PHP/dotenv-include.php.tmpl');
+        $configProphecy->get('adapter')->willReturn(SymfonyDotEnv::class);
         $loaderProphecy = $this->prophesize(ClassLoader::class);
         $loaderProphecy->register()->shouldBeCalled();
         $loaderProphecy->unregister()->shouldBeCalled();
@@ -108,10 +109,10 @@ public function dumpReturnsFalseIfFileCannotBeWritten()
     {
         $configProphecy = $this->prophesize(Config::class);
         $configProphecy->get('env-file')->willReturn(__DIR__ . '/Fixtures/env/.no-env');
-        $configProphecy->get('include-template-file')->willReturn(__DIR__ . '/../../res/PHP/dotenv-include.php.tmpl');
+        $configProphecy->get('adapter')->willReturn(SymfonyDotEnv::class);
         $loaderProphecy = $this->prophesize(ClassLoader::class);
-        $loaderProphecy->register()->shouldNotBeCalled();
-        $loaderProphecy->unregister()->shouldNotBeCalled();
+        $loaderProphecy->register()->shouldBeCalled();
+        $loaderProphecy->unregister()->shouldBeCalled();
 
         mkdir(__DIR__ . '/Fixtures/foo', 000);
         $includeFilePath = __DIR__ . '/Fixtures/foo/include.php';