add ci config

Author: zombieJ

.circleci/config.yml

@@ -0,0 +1,37 @@
+version: 2
+jobs:
+  lint:
+    docker:
+      - image: circleci/node:latest
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+            - v1-dependencies-{{ checksum "package.json" }}
+      - run: npm install
+      - save_cache:
+          paths:
+            - node_modules
+          key: v1-dependencies-{{ checksum "package.json" }}
+      - run: npm run lint
+  test:
+    docker:
+      - image: circleci/node:latest
+    working_directory: ~/repo
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+            - v1-dependencies-{{ checksum "package.json" }}
+      - run: npm install
+      - save_cache:
+          paths:
+            - node_modules
+          key: v1-dependencies-{{ checksum "package.json" }}
+      - run: npm test -- --coverage && bash <(curl -s https://codecov.io/bash)
+workflows:
+  version: 2
+  build_and_test:
+    jobs:
+      - lint
+      - test