Test code with PHP 8 (#193)

.github/workflows/ci_php8.yml

@@ -0,0 +1,35 @@
+name: Continuous Integration (PHP 8)
+
+on:
+  pull_request:
+  push:
+    branches:
+      - "2.x"
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v2"
+
+      - name: "Install PHP with extensions"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          php-version: "8.0"
+
+      - name: "Determine composer cache directory"
+        id: "determine-composer-cache-directory"
+        run: 'echo "::set-output name=directory::$(composer config cache-dir)"'
+
+      - name: "Cache dependencies installed with composer"
+        uses: "actions/cache@v1"
+        with:
+          path: "${{ steps.determine-composer-cache-directory.outputs.directory }}"
+          key: "php-composer-cache"
+
+      - name: "Composer install"
+        run: "composer install --ignore-platform-reqs"
+
+      - name: "Run tests"
+        run: "php vendor/bin/phpunit"

.Prettierignore → .prettierignore

@@ -1,2 +1,3 @@
+/composer.lock
 /vendor
 /node_modules

CHANGELOG.md

@@ -10,6 +10,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 This version is complete rewrite.
 Please check the [upgrade guide](UPGRADE.md) on how to upgrade from version `0.*` to `2.0.0`.
 
+### Added
+
+-   Support for PHP 8.0
+
 ### Changed
 
 -   Separate domain and presentation logic

Makefile

@@ -95,4 +95,4 @@ docs-frontend-build: docs-frontend-dependencies
 
 .PHONY: clean
 clean:
-	rm -rf vendor composer.lock .couscous website/node_modules website/template/static couscous.phar node_modules .phpunit.result.cache .php_cs.cache
+	rm -rf vendor composer.lock .couscous website/node_modules website/template/static couscous.phar node_modules .phpunit.result.cache .php_cs.cache report

composer.json

@@ -18,7 +18,7 @@
         }
     ],
     "require": {
-        "php": ">=7.4",
+        "php": ">=7.4 || ~8.0.0",
         "ext-mbstring": "*"
     },
     "conflict": {