Update .gitlab-ci.yml to include a Linter

.gitlab-ci.yml

@@ -49,6 +49,42 @@ black:
   script:
     - black --fast .
 
+#SOURCE: https://pypi.org/project/pylint-gitlab/
+pylint:
+  stage: test
+  before_script:
+    - mkdir -p public/badges public/lint
+    - echo undefined > public/badges/$CI_JOB_NAME.score
+    - pip install pylint-gitlab
+  script:
+    - pylint --exit-zero --output-format=text $(find -type f -name "*.py" ! -path "**/.venv/**") | tee /tmp/pylint.txt
+    - sed -n 's/^Your code has been rated at \([-0-9.]*\)\/.*/\1/p' /tmp/pylint.txt > public/badges/$CI_JOB_NAME.score
+    - pylint --exit-zero --output-format=pylint_gitlab.GitlabCodeClimateReporter $(find -type f -name "*.py" ! -path "**/.venv/**") > codeclimate.json
+    - pylint --exit-zero --output-format=pylint_gitlab.GitlabPagesHtmlReporter $(find -type f -name "*.py" ! -path "**/.venv/**") > public/lint/index.html
+  after_script:
+    - anybadge --overwrite --label $CI_JOB_NAME --value=$(cat public/badges/$CI_JOB_NAME.score) --file=public/badges/$CI_JOB_NAME.svg 4=red 6=orange 8=yellow 10=green
+    - |
+      echo "Your score is: $(cat public/badges/$CI_JOB_NAME.score)"
+  artifacts:
+    paths:
+      - public
+    reports:
+      codequality: codeclimate.json
+    when: always
+
+pages:
+  stage: deploy
+  image: alpine:latest
+  script:
+    - echo
+  artifacts:
+    paths:
+      - public
+  only:
+    refs:
+      - master
+
+
 test:
 #  variables:
 #    DATABASE_URL: "postgresql://postgres:postgres@postgres:5432/$POSTGRES_DB"