Copy coverage to/from Docker volume

.github/workflows/ci-run-tests.yml

@@ -33,11 +33,8 @@ jobs:
       - name: Run tests
         run: |
           set -x
-          docker run -i --name=app-test -u root --link=database --link=memcached -e DATABASE_URL="postgres://postgres:password@database/app" -e APP_SECRET_KEY=xxxx -e ENVIRONMENT=test app-test
-          docker exec app-test ls -a
-          ls -a
-          docker cp app-test:/app/.coverage ./
-          ls -a
+          docker run -i --name=app-test -u root --link=database --link=memcached -e DATABASE_URL="postgres://postgres:password@database/app" -e APP_SECRET_KEY=xxxx -e ENVIRONMENT=test -v $(pwd)/coverage:/coverage app-test
+          cp coverage/.coverage ./
 
       - name: Upload coverage reports to Codecov
         uses: codecov/codecov-action@v3

.gitignore

@@ -13,4 +13,4 @@ node_modules
 ietf/templates/base.html
 ietf/static/dist
 docker/database/*.gz
-/.coverage
+.coverage

docker/init-test.sh

@@ -4,4 +4,5 @@ python /app/manage.py migrate --no-input
 python /app/manage.py createcachetable
 python /app/manage.py collectstatic --no-input
 pytest --cov
+if [ -d /coverage ]; then cp .coverage /coverage/; fi
 python /app/manage.py makemigrations --check --dry-run --no-input