Added support for php 8.1 and thecodingmachine/safe v2 (#16)

* Added support for php 8.1 and thecodingmachine/safe v2

* Add readonly keyword, fix ci

* Go for major version bump

.github/workflows/ci.yml

@@ -0,0 +1,185 @@
+name: "CI"
+on:
+  pull_request:
+  push:
+    branches:
+      - "master"
+env:
+  PHP_EXTENSIONS: "dom, mbstring, xml"
+  PHP_INI_VALUES: "memory_limit=-1, assert.exception=1, zend.assertions=1, error_reporting=-1, log_errors_max_len=0, display_errors=On"
+jobs:
+  unit:
+    name: "Unit tests ${{matrix.php-version}}-${{matrix.operating-system}}-${{matrix.dependencies}}"
+    runs-on: ${{matrix.operating-system}}
+    strategy:
+      matrix:
+        operating-system:
+          - "ubuntu-latest"
+          - "windows-latest"
+        php-version:
+          - "7.3"
+          - "7.4"
+          - "8.0"
+          - "8.1"
+        dependencies:
+          - "lowest"
+          - "highest"
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v2"
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "none"
+          php-version: "${{matrix.php-version}}"
+          extensions: "${{env.PHP_EXTENSIONS}}"
+          ini-values: "${{env.PHP_INI_VALUES}}"
+          tools: "composer:v2"
+      - name: "Update composer"
+        run: "composer self-update"
+      - name: "Install lowest dependencies"
+        if: ${{ matrix.dependencies == 'lowest' }}
+        run: "composer update --prefer-lowest --no-interaction --no-progress --no-suggest"
+      - name: "Install highest dependencies"
+        if: ${{ matrix.dependencies == 'highest' }}
+        run: "composer update --no-interaction --no-progress --no-suggest"
+      - name: "Execute tests"
+        run: "vendor/bin/phpunit --fail-on-warning"
+  psalm:
+    name: "Psalm"
+    runs-on: "ubuntu-latest"
+    strategy:
+      matrix:
+        operating-system:
+          - "ubuntu-latest"
+        php-version:
+          - "8.1"
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v2"
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "none"
+          php-version: "${{matrix.php-version}}"
+          extensions: "${{env.PHP_EXTENSIONS}}"
+          ini-values: "${{env.PHP_INI_VALUES}}"
+          tools: "composer:v2"
+      - name: "Update composer"
+        run: "composer self-update"
+      - name: "Install highest dependencies"
+        run: "composer update --no-interaction --no-progress --no-suggest"
+      - name: "Execute Psalm"
+        run: "vendor/bin/psalm"
+  stan:
+    name: "PhpStan"
+    runs-on: "ubuntu-latest"
+    strategy:
+      matrix:
+        operating-system:
+          - "ubuntu-latest"
+        php-version:
+          - "8.1"
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v2"
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "none"
+          php-version: "${{matrix.php-version}}"
+          extensions: "${{env.PHP_EXTENSIONS}}"
+          ini-values: "${{env.PHP_INI_VALUES}}"
+          tools: "composer:v2"
+      - name: "Update composer"
+        run: "composer self-update"
+      - name: "Install highest dependencies"
+        run: "composer update --no-interaction --no-progress --no-suggest"
+      - name: "Execute PhpStan"
+        run: "composer stan"
+  code-style:
+    name: "Code style"
+    runs-on: "ubuntu-latest"
+    strategy:
+      matrix:
+        operating-system:
+          - "ubuntu-latest"
+        php-version:
+          - "8.1"
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v2"
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "none"
+          php-version: "${{matrix.php-version}}"
+          extensions: "${{env.PHP_EXTENSIONS}}"
+          ini-values: "${{env.PHP_INI_VALUES}}"
+          tools: "composer:v2, cs2pr"
+      - name: "Update composer"
+        run: "composer self-update"
+      - name: "Install highest dependencies"
+        run: "composer update --no-interaction --no-progress --no-suggest"
+      - name: "Execute PhpCs"
+        run: "vendor/bin/phpcs -q --report=checkstyle | cs2pr"
+  mutation:
+    name: "Mutation"
+    runs-on: "ubuntu-latest"
+    strategy:
+      matrix:
+        operating-system:
+          - "ubuntu-latest"
+        php-version:
+          - "8.1"
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v2"
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "pcov"
+          php-version: "${{matrix.php-version}}"
+          extensions: "${{env.PHP_EXTENSIONS}}"
+          ini-values: "${{env.PHP_INI_VALUES}}"
+          tools: "composer:v2"
+      - name: "Update composer"
+        run: "composer self-update"
+      - name: "Install highest dependencies"
+        run: "composer update --no-interaction --no-progress --no-suggest"
+      - name: "Execute PhpCs"
+        run: "vendor/bin/infection"
+        env:
+          INFECTION_BADGE_API_KEY: ${{ secrets.INFECTION_BADGE_API_KEY }}
+          STRYKER_DASHBOARD_API_KEY: ${{ secrets.STRYKER_DASHBOARD_API_KEY }}
+  coverage:
+    name: "Mutation"
+    runs-on: "ubuntu-latest"
+    strategy:
+      matrix:
+        operating-system:
+          - "ubuntu-latest"
+        php-version:
+          - "8.1"
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v2"
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "pcov"
+          php-version: "${{matrix.php-version}}"
+          extensions: "${{env.PHP_EXTENSIONS}}"
+          ini-values: "${{env.PHP_INI_VALUES}}"
+          tools: "composer:v2"
+      - name: "Update composer"
+        run: "composer self-update"
+      - name: "Install highest dependencies"
+        run: "composer update --no-interaction --no-progress --no-suggest"
+      - name: "Code coverage"
+        run: |
+          vendor/bin/phpunit --testsuite=unit,functional --coverage-clover build/logs/clover.xml
+          wget https://github.com/php-coveralls/php-coveralls/releases/download/v2.1.0/php-coveralls.phar
+          php php-coveralls.phar --verbose
+        env:
+          COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}