Add GitHub Actions workflows

For linting and testing.

Based on Composer's workflows.

.github/workflows/lint.yml

@@ -0,0 +1,95 @@
+name: "Lint"
+
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
+
+env:
+  COMPOSER_FLAGS: "--ansi --no-interaction --prefer-dist"
+  SYMFONY_PHPUNIT_VERSION: ""
+
+permissions:
+  contents: read
+
+jobs:
+  lint:
+    name: "Lint"
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        php-version:
+          - "7.2"
+          - "latest"
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v3"
+
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "none"
+          extensions: "intl"
+          ini-values: "memory_limit=-1, error_reporting=E_ALL, display_errors=On"
+          php-version: "${{ matrix.php-version }}"
+
+      - name: "Lint PHP files"
+        run: "find src/ -type f -name '*.php' -print0 | xargs -0 -L1 -P4 -- php -l -f"
+
+  phpstan:
+    name: "PHPStan"
+
+    runs-on: ubuntu-latest
+    continue-on-error: ${{ matrix.experimental }}
+
+    strategy:
+      matrix:
+        include:
+          - php-version: "7.2"
+            experimental: false
+          - php-version: "8.1"
+            experimental: true
+      fail-fast: false
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v3"
+
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "none"
+          extensions: "intl, zip"
+          ini-values: "memory_limit=-1"
+          php-version: "${{ matrix.php-version }}"
+
+      - name: "Determine composer cache directory"
+        id: "determine-composer-cache-directory"
+        run: "echo \"::set-output name=directory::$(composer config cache-dir)\""
+
+      - name: "Cache dependencies installed with composer"
+        uses: "actions/cache@v2"
+        with:
+          path: "${{ steps.determine-composer-cache-directory.outputs.directory }}"
+          key: "php-${{ matrix.php-version }}-symfony-php-unit-version-${{ env.SYMFONY_PHPUNIT_VERSION }}-${{ hashFiles('**/composer.lock') }}"
+          restore-keys: "php-${{ matrix.php-version }}-symfony-php-unit-version-${{ env.SYMFONY_PHPUNIT_VERSION }}"
+
+      - name: "Install highest dependencies"
+        if: "matrix.experimental == true"
+        run: "composer config platform --unset && composer update ${{ env.COMPOSER_FLAGS }}"
+
+      - name: "Install locked dependencies"
+        if: "matrix.experimental == false"
+        run: "composer config platform --unset && composer install ${{ env.COMPOSER_FLAGS }}"
+
+      - name: "Initialize PHPUnit sources"
+        run: "vendor/bin/simple-phpunit --filter NO_TEST_JUST_AUTOLOAD_THANKS"
+
+      - name: "Run PHPStan"
+        run: "composer lint-phpstan"

.github/workflows/test.yml

@@ -0,0 +1,134 @@
+name: "Test"
+
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
+
+env:
+  COMPOSER_FLAGS: "--ansi --no-interaction --no-progress --prefer-dist"
+  COMPOSER_UPDATE_FLAGS: ""
+
+permissions:
+  contents: read
+
+jobs:
+  tests:
+    name: "Test"
+
+    runs-on: ${{ matrix.os }}
+    continue-on-error: ${{ matrix.experimental }}
+
+    strategy:
+      matrix:
+        php-version:
+          - "7.2"
+          - "7.3"
+          - "7.4"
+          - "8.0"
+          - "8.1"
+        dependencies:
+          - locked
+        os:
+          - ubuntu-latest
+        experimental:
+          - false
+        include:
+          - php-version: "7.2"
+            dependencies: highest
+            os: ubuntu-latest
+            experimental: false
+          - php-version: "7.2"
+            dependencies: lowest
+            os: ubuntu-latest
+            experimental: false
+          - php-version: "8.1"
+            dependencies: highest
+            os: ubuntu-latest
+            experimental: false
+          - php-version: "8.1"
+            dependencies: locked
+            os: windows-latest
+            experimental: false
+          - php-version: "8.1"
+            dependencies: locked
+            os: macos-latest
+            experimental: false
+          - php-version: "8.2"
+            dependencies: lowest-ignore
+            os: ubuntu-latest
+            experimental: true
+          - php-version: "8.2"
+            dependencies: highest-ignore
+            os: ubuntu-latest
+            experimental: true
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v3"
+
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "none"
+          extensions: "intl, zip"
+          ini-values: "memory_limit=-1, phar.readonly=0, error_reporting=E_ALL, display_errors=On"
+          php-version: "${{ matrix.php-version }}"
+          tools: composer
+
+      - name: "Handle lowest dependencies update"
+        if: "contains(matrix.dependencies, 'lowest')"
+        run: "echo \"COMPOSER_UPDATE_FLAGS=$COMPOSER_UPDATE_FLAGS --prefer-lowest\" >> $GITHUB_ENV"
+
+      - name: "Handle ignore-platform-reqs dependencies update"
+        if: "contains(matrix.dependencies, 'ignore')"
+        run: "echo \"COMPOSER_FLAGS=$COMPOSER_FLAGS --ignore-platform-req=php\" >> $GITHUB_ENV"
+
+      - name: "Remove platform config to get latest dependencies for current PHP version when build is not locked"
+        if: "contains(matrix.dependencies, 'highest') || contains(matrix.dependencies, 'lowest')"
+        run: "composer config platform --unset"
+
+      - name: "Allow alpha releases for latest-deps builds to catch problems earlier"
+        if: "contains(matrix.dependencies, 'highest')"
+        run: "composer config minimum-stability alpha"
+
+      - name: "Update dependencies from composer.json using composer binary provided by system"
+        if: "contains(matrix.dependencies, 'highest') || contains(matrix.dependencies, 'lowest')"
+        run: "composer update ${{ env.COMPOSER_UPDATE_FLAGS }} ${{ env.COMPOSER_FLAGS }}"
+
+      - name: "Install dependencies from composer.lock using composer binary provided by system"
+        if: "matrix.dependencies == 'locked'"
+        run: "composer install ${{ env.COMPOSER_FLAGS }}"
+
+      - name: "Prepare git environment"
+        run: "git config --global user.name composer && git config --global user.email composer@example.com"
+
+      - name: "Run tests"
+        run: "vendor/bin/simple-phpunit --verbose"
+
+  validation:
+    name: "Validation"
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v3"
+
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "none"
+          extensions: "intl, zip"
+          ini-values: "memory_limit=-1, phar.readonly=0, error_reporting=E_ALL, display_errors=On"
+          php-version: "7.4"
+          tools: composer
+
+      - name: "Install dependencies"
+        run: "composer install ${{ env.COMPOSER_FLAGS }}"
+
+      - name: "Validate composer.json"
+        run: "composer validate --strict"