set up circle ci

.circleci/config.yml

@@ -0,0 +1,28 @@
+version: 2
+
+jobs:
+
+  build-python36:
+    docker:
+      - image: python:3.6
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+            - model-cache
+      - run: make models
+      - save_cache:
+          key: model-cache
+          paths:
+            models_eynollah.tar.gz
+            models_eynollah
+      - run: make install
+      - run: make smoke-test
+
+workflows:
+  version: 2
+  build:
+    jobs:
+      - build-python36
+      #- build-python37
+      #- build-python38 # no tensorflow for python 3.8