ci: use Poetry #116

.gitlab-ci.yml

@@ -6,11 +6,10 @@ stages:
 
 .install_requirements: &install_requirements
   - apt-get -qq update
-  - make init.app.sys
-  - make init.dev.sys
-  - python3 -m venv python
-  - . python/bin/activate
-  - pip3 install -r requirements.txt
+  - apt-get -y install curl pip
+  - python3 -m pip install --upgrade pip
+  - pip install poetry
+  - poetry install --without dev --no-interaction --extras "pgsql"
 
 .release-rules: &release-rules
   # rule to run job on a tag-reference which has the form number.number.number (semantic versioning)
@@ -31,9 +30,7 @@ run_test_cases:
 check_style:
   stage: test
   before_script:
-    - apt-get --quiet update
-    - apt-get --quiet --yes install codespell make
-    - pip3 install flake8
+    - *install_requirements
   script:
     - make lint
     - make spell