Merge pull request #132 from wp-cli/add/phpstan-job

Author: swissspidy

.github/workflows/reusable-code-quality.yml

@@ -159,3 +159,45 @@ jobs:
           if [ -f /tmp/phpcs-checkstyle-report.xml ]; then
             cs2pr /tmp/phpcs-checkstyle-report.xml
           fi
+
+  phpstan: #----------------------------------------------------------------------
+    name: PHPStan
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out source code
+        uses: actions/checkout@v4
+
+      - name: Check existence of composer.json & phpcs.xml.dist files
+        id: check_files
+        uses: andstor/file-existence-action@v3
+        with:
+          files: "composer.json"
+
+      - name: Set up PHP environment
+        if: steps.check_files.outputs.files_exists == 'true'
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: 'latest'
+          tools: cs2pr
+        env:
+          COMPOSER_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Install Composer dependencies & cache dependencies
+        if: steps.check_files.outputs.files_exists == 'true'
+        uses: "ramsey/composer-install@v3"
+        env:
+          COMPOSER_ROOT_VERSION: dev-${{ github.event.repository.default_branch }}
+        with:
+          # Bust the cache at least once a month - output format: YYYY-MM.
+          custom-cache-suffix: $(date -u "+%Y-%m")
+
+      - name: Check existence of vendor/bin/phpstan file
+        id: check_phpstan_binary_file
+        uses: andstor/file-existence-action@v3
+        with:
+          files: "vendor/bin/phpstan"
+
+      - name: Run PHPStan
+        if: steps.check_phpstan_binary_file.outputs.files_exists == 'true'
+        run: composer phpstan