Merge branch '6-update-ci' into 'feature/lockheed-martin-initial-contribution'

Resolve "update-ci"

Closes #6

See merge request software-factory/opensource/dccscr/replicator!7

.gitlab-ci.yml

 variables:
-    PYTHON_IMAGE: python:3-alpine
+    PYTHON_IMAGE: python:3.7
+
+pylint:
+    stage: test
+    image: $PYTHON_IMAGE
+    script:
+        - pip3 install -q -r requirements.txt
+        - pylint --errors-only replicator
+
+mypy:
+    stage: test
+    image: $PYTHON_IMAGE
+    script:
+        - pip3 install -q -r requirements.txt
+        - mypy replicator
 
 pytest:
     stage: test

requirements.txt

+astroid==2.3.3
 attrs==19.3.0
 beautifulsoup4==4.8.1
 certifi==2019.11.28
@@ -5,13 +6,19 @@ chardet==3.0.4
 coverage==5.0.3
 idna==2.8
 importlib-metadata==1.5.0
+isort==4.3.21
 Jinja2==2.10.3
+lazy-object-proxy==1.4.3
 MarkupSafe==1.1.1
+mccabe==0.6.1
 mock==4.0.1
 more-itertools==8.2.0
+mypy==0.761
+mypy-extensions==0.4.3
 packaging==20.1
 pluggy==0.13.1
 py==1.8.1
+pylint==2.4.4
 pyotp==2.3.0
 pyparsing==2.4.6
 pytest==5.3.5
@@ -21,6 +28,9 @@ python-dateutil==2.8.1
 requests==2.22.0
 six==1.13.0
 soupsieve==1.9.5
+typed-ast==1.4.1
+typing-extensions==3.7.4.1
 urllib3==1.25.7
 wcwidth==0.1.8
+wrapt==1.11.2
 zipp==2.2.0