Add php-cs-fixer as dev dependency

.gitattributes

@@ -1,6 +1,7 @@
 /.env               export-ignore
 /.gitattributes     export-ignore
 /.gitignore         export-ignore
+/.php_cs*           export-ignore
 /.travis.yml        export-ignore
 /composer.lock      export-ignore
 /docker             export-ignore

.gitignore

@@ -8,6 +8,9 @@ phpdoc/
 coverage/
 report/
 
+# Cache
+.php_cs.cache
+
 # Sphinx Documentation
 docs/build
 

.php_cs.dist

@@ -0,0 +1,15 @@
+<?php
+
+$finder = PhpCsFixer\Finder::create()
+    ->files()
+    ->in(__DIR__ . '/src')
+    ->in(__DIR__ . '/test');
+
+return PhpCsFixer\Config::create()
+    ->setFinder($finder)
+    ->setRiskyAllowed(true)
+    ->setRules([
+        '@PSR2' => true,
+        'strict_param' => true,
+        'array_syntax' => ['syntax' => 'short'],
+    ]);

composer.json

@@ -18,6 +18,7 @@
         "psr/http-server-middleware": "~1.0"
     },
     "require-dev": {
+        "friendsofphp/php-cs-fixer": "^2",
         "phpspec/prophecy-phpunit": "^2.0",
         "phpunit/phpunit": "^9",
         "vimeo/psalm": "^3.4"

docker/php/Dockerfile

@@ -32,7 +32,8 @@ COPY ./test /usr/local/src/wellrested/test
 COPY ./composer.* /usr/local/src/wellrested/
 COPY ./phpunit.xml.dist /usr/local/src/wellrested/
 
-# Add symlinks for phpunit and psalm for easier running
+# Add symlinks for php-cs-fixer, phpunit, and psalm for easier running
+RUN ln -s /usr/local/src/wellrested/vendor/bin/php-cs-fixer /usr/local/bin/php-cs-fixer
 RUN ln -s /usr/local/src/wellrested/vendor/bin/phpunit /usr/local/bin/phpunit
 RUN ln -s /usr/local/src/wellrested/vendor/bin/psalm /usr/local/bin/psalm