Use Circle CI to run lint, prettier, flow, and tests

.circleci/config.yml

@@ -0,0 +1,39 @@
+# Javascript Node CircleCI 2.0 configuration file
+#
+# Check https://circleci.com/docs/2.0/language-javascript/ for more details
+#
+version: 2
+jobs:
+  build:
+    docker:
+      # specify the version you desire here
+      - image: circleci/node:7.10
+
+      # Specify service dependencies here if necessary
+      # CircleCI maintains a library of pre-built images
+      # documented at https://circleci.com/docs/2.0/circleci-images/
+      # - image: circleci/mongo:3.4.4
+
+    working_directory: ~/repo
+
+    steps:
+      - checkout
+
+      # Download and cache dependencies
+      - restore_cache:
+          keys:
+            - v1-dependencies-{{ checksum "package.json" }}
+            # fallback to using the latest cache if no exact match is found
+            - v1-dependencies-
+
+      - run: yarn install
+
+      - save_cache:
+          paths:
+            - node_modules
+          key: v1-dependencies-{{ checksum "package.json" }}
+
+      - run: yarn prettier:ci
+      - run: yarn lint:ci
+      - run: yarn flow
+      - run: yarn test

package.json

@@ -40,8 +40,10 @@
     "deploy:firefox": "node ./shells/browser/firefox/deploy",
     "linc": "lint-staged",
     "lint": "eslint '**/*.js'",
+    "lint:ci": "eslint '**/*.js' --max-warnings 0",
     "precommit": "lint-staged",
     "prettier": "prettier --write '**/*.{js,json,css}'",
+    "prettier:ci": "prettier --check '**/*.{js,json,css}'",
     "start": "cd ./shells/dev && opener ./index.html && webpack --config webpack.config.js --watch",
     "test": "jest",
     "test-debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
@@ -117,7 +119,7 @@
     "nullthrows": "^1.0.0",
     "object-assign": "4.0.1",
     "opener": "^1.5.1",
-    "prettier": "^1.16.1",
+    "prettier": "^1.16.4",
     "prop-types": "^15.6.2",
     "react": "^16.9.0-alpha.0",
     "react-color": "^2.11.7",

yarn.lock

@@ -8730,7 +8730,7 @@ preserve@^0.2.0:
   resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
   integrity sha1-gV7R9uvGWSb4ZbMQwHE7yzMVzks=
 
-prettier@^1.16.1:
+prettier@^1.16.4:
   version "1.16.4"
   resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.16.4.tgz#73e37e73e018ad2db9c76742e2647e21790c9717"
   integrity sha512-ZzWuos7TI5CKUeQAtFd6Zhm2s6EpAD/ZLApIhsF9pRvRtM1RFo61dM/4MSRUA0SuLugA/zgrZD8m0BaY46Og7g==