use gitlab format for phpstan, re #606

Closes #606

Merge request studip/studip!797

.gitlab-ci.yml

@@ -145,11 +145,14 @@ phpstan:
     - make composer-dev
     - mkdir .reports -p
   script:
-    - php composer/bin/phpstan analyse --memory-limit=1G --no-progress --level=$PHPSTAN_LEVEL > .reports/report-phpstan.xml
+    - php composer/bin/phpstan analyse --memory-limit=1G --no-progress --level=$PHPSTAN_LEVEL --error-format=gitlab > .reports/report-phpstan.json
   artifacts:
+    paths:
+        - .reports/report-phpstan.json
+    expire_in: 14 days
     when: always
     reports:
-      junit: .reports/report-phpstan.xml
+      codequality: .reports/report-phpstan.json
 
 test-unit:
   stage: tests

phpstan.neon.dist

@@ -2,7 +2,7 @@ parameters:
     level: 0
     phpVersion: 70200 # PHP 7.2
     paths:
-        # - app/routes
+        - app/routes
         - lib
         # - tests
     scanFiles:
@@ -20,7 +20,5 @@ parameters:
         RESTAPI\RouteMap:
             - error
             - halt
-    errorFormat:
-       junit
     ignoreErrors:
         # - '#Undefined variable#'