Add PHP CS Fixer.

.github/workflows/tests.yml

@@ -9,14 +9,15 @@ on:
       - '**.php'
       - '.github/workflows/*'
       - 'test/github/*'
+  pull_request:
 
 jobs:
   get-php:
     name: Download PHP
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Check for PHP cache
         id: php-cache
         uses: actions/cache@v3
@@ -28,10 +29,59 @@ jobs:
         if: steps.php-cache.outputs.cache-hit != 'true'
         run: ./test/github/get-php.sh
 
-  Analysis:
+  code-style:
+    name: Code Style Checks
+    needs: get-php
+    runs-on: ubuntu-22.04
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Restore PHP cache
+        id: php-cache
+        uses: actions/cache@v3
+        with:
+          path: "./bin"
+          key: "php-cache-${{ hashFiles('./test/github/get-php.sh') }}"
+
+      - name: Prefix PHP to PATH
+        run: echo "$(pwd)/bin/php7/bin" >> $GITHUB_PATH
+
+      - name: Install Composer
+        run: curl -sS https://getcomposer.org/installer | php
+
+      - name: Restore Composer package cache
+        id: composer-cache-php-cs-fixer
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cache/composer/files
+            ~/.cache/composer/vcs
+            ./vendor
+          key: "composer-v3-cache-php-cs-fixer-${{ hashFiles('./tools/php-cs-fixer/composer.lock') }}"
+          restore-keys: |
+            composer-v3-cache-php-cs-fixer-
+      - name: Install Composer dependencies
+        if: steps.composer-cache.outputs.cache-hit != 'true'
+        run: php composer.phar install -d tools/php-cs-fixer --no-interaction
+
+      - name: Save Composer package cache
+        if: steps.composer-cache.outputs.cache-hit != 'true'
+        id: composer-cache-save
+        uses: actions/cache/save@v3
+        with:
+          path: |
+            ~/.cache/composer/files
+            ~/.cache/composer/vcs
+            ./vendor
+          key: "composer-v3-cache-php-cs-fixer-${{ hashFiles('./tools/php-cs-fixer/composer.lock') }}"
+
+      - name: Run PHP-CS-Fixer
+        run: ./tools/php-cs-fixer/vendor/bin/php-cs-fixer fix --dry-run --diff --ansi
+
+  analysis:
     name: PHPStan
     needs: get-php
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
 
     steps:
       - uses: actions/checkout@v3

.gitignore

@@ -2,13 +2,13 @@
 /dist/
 /.cache/
 /code-coverage/
+/tools/php-cs-fixer/vendor/
 
 *.phar
 *.txt
 *.DS_STORE
 
-TEST.php
-PHPSTAN.php
+tools/TEST.php
+tools/PHPSTAN.php
 phpstan.neon
-phpunit.xml
-.phpunit.result.cache
+.php-cs-fixer.cache