Upgrade to PHP 8.0 (#76)

* Remove PHP 7.4 from CI builds.

* Update Docker to PHP 8.

* Update .gitattributes.

* Update packages to PHP 8.

* Install Rector.

* Add Rector alias.

* Configure Rector.

* Upgrade code to PHP 8.

.gitattributes

@@ -1,9 +1,11 @@
-/.semaphore             export-ignore
+/.github                export-ignore
+/docker                 export-ignore
 /tests                  export-ignore
 /.gitattributes         export-ignore
 /.gitignore             export-ignore
 /.php-cs-fixer.dist.php export-ignore
 /composer.lock          export-ignore
 /LICENSE                export-ignore
 /phpunit.xml.dist       export-ignore
+/php-email-tokens       export-ignore
 /README.md              export-ignore

.github/workflows/continuous-integration.yml

@@ -15,7 +15,6 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - '7.4'
           - '8.0'
     steps:
     - uses: actions/checkout@v2

.php-cs-fixer.dist.php

@@ -1,4 +1,9 @@
 <?php
-return FusionsPim\PhpCsFixer\Factory::fromDefaults([
+$config = FusionsPim\PhpCsFixer\Factory::fromDefaults([
     'ordered_class_elements' => true, // Order methods too (our default is to leave methods alone)
 ]);
+
+return $config->setFinder(
+    $config->getFinder()
+        ->notName('rector.php')
+);

composer.json

@@ -9,15 +9,16 @@
     "token"
   ],
   "require": {
-    "php": "^7.4 || ^8.0",
-    "ext-mbstring": "^7.4 || ^8.0",
+    "php": "^8.0",
+    "ext-mbstring": "^8.0",
     "nesbot/carbon": "^2.0",
     "tuupola/base62": "^2.0"
   },
   "require-dev": {
     "ergebnis/composer-normalize": "^2.6",
     "fusionspim/php-cs-fixer-config": "^9.0",
-    "phpunit/phpunit": "^9.0.0"
+    "phpunit/phpunit": "^9.0.0",
+    "rector/rector": "^0.12.8"
   },
   "autoload": {
     "psr-4": {
@@ -29,6 +30,7 @@
       "php-cs-fixer fix --config=.php-cs-fixer.dist.php; echo",
       "composer normalize; echo"
     ],
+    "fix-rector": "vendor/bin/rector process src tests",
     "test": [
       "phpunit --stop-on-failure --stop-on-error; echo"
     ]