change CircleCI config

Based on
https://github.com/fyndata/fyndata-django-accounts/blob/41239e7/.circleci/config.yml

Author: glarrain

.circleci/config.yml

@@ -11,9 +11,9 @@
 #
 version: 2
 jobs:
-  build:
+  test-py37:
     docker:
-      - image: python:3.7.1
+      - image: python:3.7.2
 
     working_directory: ~/repo
 
@@ -28,19 +28,52 @@ jobs:
             pip install --upgrade pip
             pip install --upgrade setuptools wheel
             pip install -r requirements/test.txt
-#            pip install -r requirements/extras.txt
 
-      # run tests!
       - run:
           name: run tests
           command: |
             . venv/bin/activate
             make lint
-            make test-coverage
+            tox -e py37
+            codecov
             make test-coverage-report-console
             make test-coverage-report-html
-            make dist
 
       - store_artifacts:
           path: test-reports
           destination: test-reports
+
+  dist:
+    docker:
+      - image: python:3.7.2
+
+    working_directory: ~/repo
+
+    steps:
+      - checkout
+
+      - run:
+          name: install dependencies
+          command: |
+            python3 -m venv venv
+            . venv/bin/activate
+            pip install --upgrade pip
+            pip install --upgrade setuptools wheel
+            pip install -r requirements/release.txt
+
+      - run:
+          name: make dist
+          command: |
+            . venv/bin/activate
+            make dist
+
+      - store_artifacts:
+          path: dist
+          destination: dist
+
+workflows:
+  version: 2
+  ci:
+    jobs:
+      - test-py37
+      - dist