#406: Run pre-commit for black and isort

• Set up cache
• https://pre-commit.com/#usage-in-continuous-integration
• Set Py3.9 as default since pre-commit is installed on Py3.9 image

Close #406 (closed).

.gitlab-ci.yml

@@ -6,7 +6,7 @@ stages:
 
 variables:
   DOCKER_IMAGE: "registry.duniter.org/docker/python3/poetry"
-  PYTHON_VERSION: "3.8"
+  PYTHON_VERSION: "3.9"
 
 image: $DOCKER_IMAGE/$PYTHON_VERSION:latest
 
@@ -31,18 +31,28 @@ build:
   script:
     - poetry build
 
+.pre-commit:
+  variables:
+    PRE_COMMIT_HOME: ${CI_PROJECT_DIR}/.cache/pre-commit
+  cache:
+    paths:
+      - ${PRE_COMMIT_HOME}
+
 format:
-  extends: .code_changes
+  extends:
+    - .code_changes
+    - .pre-commit
   stage: checks
   script:
-    - black --check silkaj tests
+    - pre-commit run --all-files black
 
 isort:
   extends:
     - .code_changes
+    - .pre-commit
   stage: checks
   script:
-    - isort --check silkaj tests
+    - pre-commit run --all-files isort
 
 .tests:
   extends: .changes
@@ -67,12 +77,12 @@ tests:3.7:
 tests:3.8:
   extends: .tests
   tags: [redshift]
+  variables:
+    PYTHON_VERSION: "3.8"
 
 tests:3.9:coverage:
   extends: .tests
   tags: [redshift]
-  variables:
-    PYTHON_VERSION: "3.9"
   script:
     - poetry install
     - poetry run pytest --cov silkaj --cov-report html:cov_html --cov-report term