add circleci config

.circleci/config.yml

@@ -0,0 +1,46 @@
+# Python CircleCI 2.0 configuration file
+version: 2
+jobs:
+  build:
+    docker:
+      - image: circleci/python:3.6
+    working_directory: ~/repo
+
+    steps:
+      - checkout
+      # Download and cache dependencies
+      - restore_cache:
+          keys:
+            - v1-dependencies-{{ checksum "requirements.txt" }}
+            # fallback to using the latest cache if no exact match is found
+            - v1-dependencies-
+
+      - run:
+          name: install dependencies
+          command: |
+            python3 -m venv venv
+            . venv/bin/activate
+            pip install -r requirements.txt
+      - run:
+          name: build phase0 spec
+          command: make build/phase0
+
+      - save_cache:
+          paths:
+            - ./venv
+          key: v1-dependencies-{{ checksum "requirements.txt" }}
+
+      # run tests!
+      # this example uses Django's built-in test-runner
+      # other common Python testing frameworks include pytest and nose
+      # https://pytest.org
+      # https://nose.readthedocs.io
+      - run:
+          name: run tests
+          command: |
+            . venv/bin/activate
+            pytest tests
+
+      - store_artifacts:
+          path: test-reports
+          destination: test-reports

.gitignore

@@ -2,3 +2,5 @@
 /__pycache__
 /venv
 /.pytest_cache
+
+build/phase0/spec.py

Makefile

@@ -2,10 +2,8 @@ SPEC_DIR = ./specs
 SCRIPT_DIR = ./scripts
 BUILD_DIR = ./build
 
-.PHONY: clean all
+.PHONY: clean all $(BUILD_DIR)/phase0
 
 
 $(BUILD_DIR)/phase0:
-	mkdir -p $@
 	python3 $(SCRIPT_DIR)/phase0/build_spec.py  $(SPEC_DIR)/core/0_beacon-chain.md $@/spec.py
-	touch $(BUILD_DIR)/__init__.py $(BUILD_DIR)/phase0/__init__.py