Merge pull request #1017 from AJenbo/phpstan-ci

Run PHPStan in CI

.github/workflows/phpstan.yml

@@ -0,0 +1,53 @@
+name: PHPStan
+
+on:
+  push:
+    branches:
+      - "*"
+  pull_request:
+    branches:
+      - "*"
+
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    env:
+      COMPOSER_NO_INTERACTION: 1
+
+    strategy:
+      fail-fast: false
+      matrix:
+        php: [ '7.4' ]
+        setup: [ 'stable' ]
+        phpstan: [1.10.25]
+
+    name: PHP ${{ matrix.php }} - ${{ matrix.setup }} - ${{ matrix.phpstan }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          coverage: none
+          tools: composer:v2
+
+      - name: Cache Composer packages
+        id: composer-cache
+        uses: actions/cache@v3
+        with:
+          path: vendor
+          key: ${{ runner.os }}-php-${{ matrix.php }}-${{ matrix.dependency-version }}-${{ hashFiles('**/composer.json') }}
+          restore-keys: |
+            ${{ runner.os }}-php-${{ matrix.php }}-${{ matrix.dependency-version }}
+
+      - name: Install dependencies
+        run: |
+          composer require phpstan/phpstan:${{ matrix.phpstan }} --no-interaction --dev --no-update;
+          composer update --prefer-dist --no-progress --no-suggest --prefer-${{ matrix.setup }};
+
+      - name: Run PHPStan
+        run: vendor/bin/phpstan analyze

phpstan.neon

@@ -0,0 +1,5 @@
+parameters:
+    paths:
+        - src/main
+    rememberPossiblyImpureFunctionValues: false
+    level: 1