Use GitHub Actions for CI

.github/workflows/continuous-integration.yml

@@ -0,0 +1,184 @@
+# https://help.github.com/en/categories/automating-your-workflow-with-github-actions
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+    tags:
+      - "**"
+
+name: "Continuous Integration"
+
+jobs:
+  coding-standards:
+    name: "Coding Standards"
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        php-version:
+          - 7.4
+
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v1
+
+      - name: "Install PHP with extensions"
+        uses: shivammathur/setup-php@v1
+        with:
+          coverage: none
+          extensions: "json"
+          php-version: ${{ matrix.php-version }}
+
+      - name: "Validate composer.json and composer.lock"
+        run: composer validate --strict
+
+      - name: "Cache dependencies installed with composer"
+        uses: actions/cache@v1
+        with:
+          path: ~/.composer/cache
+          key: php${{ matrix.php-version }}-composer-locked-${{ hashFiles('**/composer.lock') }}
+          restore-keys: |
+            php${{ matrix.php-version }}-composer-locked-
+
+      - name: "Install locked dependencies with composer"
+        run: composer install --no-interaction --no-progress --no-suggest
+
+      - name: "Run localheinz/composer-normalize"
+        run: composer normalize --dry-run
+
+      - name: "Create cache directory for friendsofphp/php-cs-fixer"
+        run: mkdir -p .build/php-cs-fixer
+
+      - name: "Cache cache directory for friendsofphp/php-cs-fixer"
+        uses: actions/cache@v1
+        with:
+          path: .build/php-cs-fixer
+          key: php${{ matrix.php-version }}-php-cs-fixer-${{ hashFiles('**/composer.lock') }}
+          restore-keys: |
+            php${{ matrix.php-version }}-php-cs-fixer-
+
+      - name: "Run friendsofphp/php-cs-fixer"
+        run: vendor/bin/php-cs-fixer fix --diff --diff-format=udiff --dry-run --verbose
+
+  static-code-analysis:
+    name: "Static Code Analysis"
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        php-version:
+          - 7.4
+
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v1
+
+      - name: "Install PHP with extensions"
+        uses: shivammathur/setup-php@v1
+        with:
+          coverage: none
+          extensions: "json"
+          php-version: ${{ matrix.php-version }}
+
+      - name: "Cache dependencies installed with composer"
+        uses: actions/cache@v1
+        with:
+          path: ~/.composer/cache
+          key: ${{ matrix.php-version }}-composer-locked-${{ hashFiles('**/composer.lock') }}
+          restore-keys: |
+            ${{ matrix.php-version }}-composer-locked-
+      - name: "Install locked dependencies with composer"
+        run: composer install --no-interaction --no-progress --no-suggest
+
+      - name: "Run phpstan/phpstan"
+        run: vendor/bin/phpstan analyse
+
+  tests:
+    name: "Tests"
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        php-version:
+          - 7.2
+          - 7.3
+          - 7.4
+
+        dependencies:
+          - lowest
+          - highest
+
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v1
+
+      - name: "Install PHP with extensions"
+        uses: shivammathur/setup-php@v1
+        with:
+          coverage: none
+          extensions: "json"
+          php-version: ${{ matrix.php-version }}
+
+      - name: "Cache dependencies installed with composer"
+        uses: actions/cache@v1
+        with:
+          path: ~/.composer/cache
+          key: php${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('**/composer.lock') }}
+          restore-keys: |
+            php${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-
+
+      - name: "Install lowest dependencies with composer"
+        if: matrix.dependencies == 'lowest'
+        run: composer update --no-interaction --no-progress --no-suggest --prefer-lowest
+
+      - name: "Install highest dependencies with composer"
+        if: matrix.dependencies == 'highest'
+        run: composer update --no-interaction --no-progress --no-suggest
+
+      - name: "Run tests with phpunit/phpunit"
+        run: vendor/bin/phpunit
+
+  code-coverage:
+    name: "Code Coverage"
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        php-version:
+          - 7.4
+
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v1
+
+      - name: "Install PHP with extensions"
+        uses: shivammathur/setup-php@v1
+        with:
+          coverage: pcov
+          extensions: "json"
+          php-version: ${{ matrix.php-version }}
+
+      - name: "Cache dependencies installed with composer"
+        uses: actions/cache@v1
+        with:
+          path: ~/.composer/cache
+          key: php${{ matrix.php-version }}-composer-locked-${{ hashFiles('**/composer.lock') }}
+          restore-keys: |
+            php${{ matrix.php-version }}-composer-locked-
+
+      - name: "Install locked dependencies with composer"
+        run: composer install --no-interaction --no-progress --no-suggest
+
+      - name: "Collect code coverage with pcov and phpunit/phpunit"
+        run: vendor/bin/phpunit -coverage-clover=build/logs/clover.xml
+
+      - name: "Send code coverage report to Codecov.io"
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+        run: bash <(curl -s https://codecov.io/bash)