ci: use codeclimate for linting tests

Codeclimate is [integrated](https://docs.gitlab.com/ee/ci/testing/code_quality.html#customizing-scan-settings) into GitLab. Thus the UI is more intuitive from the web gui.

.codeclimate.yml

@@ -0,0 +1,11 @@
+---
+version: "2"
+plugins:
+  pylint:
+    enabled: true
+
+  shellcheck:
+    enabled: true
+
+  bandit:
+    enabled: true

.gitlab-ci.yml

@@ -1,4 +1,6 @@
 ---
+include:
+  - template: Code-Quality.gitlab-ci.yml
 
 variables:
   pip: pip3 --timeout 100 --retries 10
@@ -222,36 +224,28 @@ lint_format_safety_bandit_checks:
           make
           pycodestyle
           pyflakes3
-          pylint
           python3-dev
           python3-git
           python3-nose
           python3-pip
           python3-yaml
-          shellcheck
-    - $pip install --break-system-packages bandit safety
+    - $pip install --break-system-packages safety
     - export EXITVALUE=0
     - function set_error() { export EXITVALUE=1; printf "\x1b[31mERROR `history|tail -2|head -1|cut -b 6-500`\x1b[0m\n"; }
     - ./hooks/pre-commit || set_error
-    - bandit
-        -r
-        -ii
-        --ini .bandit
-        || set_error
     - safety check --full-report || set_error
-    - pylint --output-format=colorized --reports=n
-            fdroid
-            makebuildserver
-            setup.py
-            fdroidserver/*.py
-            tests/*.py
-            tests/*.TestCase
-        || set_error
-    - shellcheck --exclude SC2046,SC2090 --severity=warning --color tests/run-tests
-        || set_error
     - exit $EXITVALUE
 
 
+code_quality:
+  rules:
+    - if: $CODE_QUALITY_DISABLED
+      when: never
+    - if: $CI_PIPELINE_SOURCE == "merge_request_event" # Run code quality job in merge request pipelines
+    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH      # Run code quality job in pipelines on the default branch (but not in other branch pipelines)
+    - if: $CI_COMMIT_TAG                               # Run code quality job in pipelines for tags
+
+
 # Run all the various linters and static analysis tools.
 locales:
   image: debian:bookworm-slim