continuous deploy on Circle

for #540

.circleci/config.yml

@@ -35,6 +35,9 @@ jobs:
             pip install -U -r requirements.txt
             pip install coverage coveralls
 
+            ln -sf $VIRTUAL_ENV/lib/python3.9/site-packages/oauth_dropins/fonts oauth_dropins_fonts
+            ln -sf $VIRTUAL_ENV/lib/python3.9/site-packages/oauth_dropins/static oauth_dropins_static
+
       - run:
           name: Build and test
           command: |
@@ -44,6 +47,17 @@ jobs:
             python -m coverage html -d /tmp/coverage_html
             if [ "$COVERALLS_REPO_TOKEN" != "" ]; then coveralls || true; fi
 
+      # a step only runs if all previous steps succeed, including tests above
+      # https://circleci.com/docs/configuration-reference/#the-when-attribute
+      - run:
+          name: Deploy
+          command: |
+            echo $$CIRCLE_BRANCH
+            if [ $CIRCLE_BRANCH = "cd" ]; then
+              echo $GCLOUD_SERVICE_KEY | gcloud auth activate-service-account --key-file=-
+              gcloud -q beta app deploy --no-cache --project bridgy-federated *.yaml
+            fi
+
       - save_cache:
           key: venv-4-{{ .Branch }}-{{ checksum "requirements.txt" }}
           paths: