Add support for PHP 8 (#30)

* Add support for PHP 8

* Migrate to GitHub Actions

* Add review

Author: vincentchalamon

.github/workflows/ci.yml

@@ -0,0 +1,86 @@
+name: CI
+
+on:
+  schedule:
+    - cron: 0 2 * * 1-5
+  pull_request:
+  push:
+    branches:
+      - master
+
+jobs:
+  tests:
+    name: Tests PHP ${{ matrix.php }} ${{ matrix.dependency }} (Symfony ${{ matrix.symfony }})
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php:
+          - '5.5'
+          - '5.6'
+          - '7.0'
+          - '7.1'
+          - '7.2'
+          - '7.3'
+          - '7.4'
+          - '8.0'
+        symfony:
+          - '3.4.*'
+          - '4.4.*'
+          - '5.0.*'
+        include:
+          - php: '7.1'
+            coverage: true
+        dependency:
+          - ''
+          - 'lowest'
+      fail-fast: false
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          extensions: curl, dom, iconv, intl, json, libxml, mbstring, phar, tokenizer, xdebug, xml, xmlwriter
+
+      - name: Get Composer Cache Directory
+        id: composer-cache
+        run: echo "::set-output name=dir::$(composer config cache-files-dir)"
+
+      - name: Cache dependencies
+        uses: actions/cache@v1
+        with:
+          path: ${{ steps.composer-cache.outputs.dir }}
+          key: ${{ matrix.php }}-composer-${{ hashFiles('**/composer.json') }}
+          restore-keys: ${{ matrix.php }}-composer-
+
+      - name: Configure Symfony
+        run: |
+          composer global require symfony/flex
+          composer config extra.symfony.require "${{ matrix.symfony }}"
+
+      - name: Update project dependencies
+        if: matrix.dependency == ''
+        run: composer update --no-progress --ansi --prefer-stable
+
+      - name: Update project dependencies lowest
+        if: matrix.dependency == 'lowest'
+        run: composer update --no-progress --ansi --prefer-stable --prefer-lowest
+
+      - name: Validate composer
+        run: composer validate --strict --no-check-lock
+
+      - name: Run tests
+        if: !matrix.coverage
+        run: vendor/bin/phpunit
+
+      - name: Run tests with coverage
+        if: matrix.coverage
+        run: vendor/bin/phpunit --coverage-text --coverage-clover=build/coverage.xml
+
+      - name: Upload coverage
+        if: matrix.coverage
+        run: |
+          wget https://scrutinizer-ci.com/ocular.phar
+          php ocular.phar code-coverage:upload --format=php-clover build/coverage.xml

.styleci.yml

@@ -5,8 +5,5 @@ finder:
         - "Resources"
         - "vendor"
 
-enabled:
-    - short_array_syntax
-
 disabled:
     - phpdoc_annotation_without_dot # This is still buggy: https://github.com/symfony/symfony/pull/19198

.travis.yml

@@ -10,7 +10,7 @@
         }
     ],
     "require": {
-        "php": "^5.5 || ^7.0",
+        "php": "^5.5 || ^7.0 || ^8.0",
         "symfony/dependency-injection": "^3.4 || ^4.3 || ^5.0",
         "symfony/framework-bundle": "^3.4 || ^4.3 || ^5.0",
         "symfony/http-kernel": "^3.4 || ^4.3 || ^5.0",