workflows: Add phpstan

.github/workflows/php.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: ['7.2', '7.3', '7.4', '8.0', '8.1']
+        php: ['7.2', '7.3', '7.4', '8.0', '8.1', '8.2']
         os: ['ubuntu-latest']
 
     steps:
@@ -31,7 +31,13 @@ jobs:
           tools: phpcs
 
       - name: Setup dependencies
-        run: composer require -n --no-progress overtrue/phplint
+        run: |
+          composer require -n --no-progress overtrue/phplint
+          git clone --depth 1 https://github.com/Icinga/icingaweb2.git vendor/icingaweb2
+          git clone --depth 1 https://github.com/Icinga/icingadb-web.git vendor/icingadb-web
+          git clone --depth 1 https://github.com/Icinga/icingaweb2-module-director.git vendor/icingaweb2-module-director
+          git clone --depth 1 -b snapshot/nightly https://github.com/Icinga/icinga-php-library.git vendor/icinga-php-library
+          git clone --depth 1 -b snapshot/nightly https://github.com/Icinga/icinga-php-thirdparty.git vendor/icinga-php-thirdparty
 
       - name: PHP Lint
         if: success() || matrix.allow_failure
@@ -41,6 +47,10 @@ jobs:
         if: success() || matrix.allow_failure
         run: phpcs
 
+      - name: PHPStan
+        uses: php-actions/phpstan@v3
+        if: success() || matrix.allow_failure
+
   test:
     name: Unit tests with php ${{ matrix.php }} on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}

phpstan.neon

@@ -0,0 +1,21 @@
+parameters:
+    level: 5
+
+    checkFunctionNameCase: true
+    checkInternalClassCaseSensitivity: true
+    treatPhpDocTypesAsCertain: false
+
+    paths:
+        - application
+        - library
+
+    scanDirectories:
+        - vendor
+
+    ignoreErrors:
+        - '#Unsafe usage of new static\(\)#'
+
+    universalObjectCratesClasses:
+        - Icinga\Web\View
+        - ipl\Orm\Model
+        - Icinga\Module\Monitoring\Object\MonitoredObject