Automatic publishing (#400)

* Automatic publishing

* Remove transpilation from readme as Node.js 8 is the latest supported version

* Move readme.md

* Remove lib file

.circleci/config.yml

@@ -1,7 +1,111 @@
-version: 2
+version: 2.1
+
+#########################
+# Aliases
+#########################
+
+aliases:
+  - &store_test_results
+    store_test_results:
+      path: ~/repo/test_results.xml
+  - &persist_to_workspace
+    persist_to_workspace:
+      root: ~/repo
+      paths: ['.']
+  - &attach_workspace
+    attach_workspace:
+      at: .
+
+#########################
+# Executors
+#########################
+
+executors:
+  node:
+    docker:
+      - image: circleci/node:8
+    working_directory: ~/repo
+
+#########################
+# Commands
+#########################
+
+commands:
+  yarn_install:
+    steps:
+      - run:
+          name: Installing Dependencies
+          command: yarn install --frozen-lockfile
+  yarn_lint:
+    steps:
+      - run:
+          name: Linting
+          command: yarn lint
+  test_all:
+    steps:
+      - run:
+          name: Run All Tests
+          command: >
+            yarn test
+  save_npm_token:
+    steps:
+      - run:
+          name: Potentially save npm token
+          command: '([[ ! -z $NPM_TOKEN ]] && echo "//registry.npmjs.org/:_authToken=$NPM_TOKEN" >> ~/.npmrc) || echo "Did not write npm token"'
+  publish_canary:
+    steps:
+      - run:
+          name: Potentially publish canary release
+          command: 'if ls ~/.npmrc >/dev/null 2>&1 && [[ $(git describe --exact-match 2> /dev/null || :) =~ -canary ]]; then yarn run lerna publish from-git --npm-tag canary --yes; else  echo "Did not publish"; fi'
+  publish_stable:
+    steps:
+      - run:
+          name: Potentially publish stable release
+          command: 'if ls ~/.npmrc >/dev/null 2>&1 && [[ ! $(git describe --exact-match 2> /dev/null || :) =~ -canary ]]; then yarn run lerna publish from-git --yes; else  echo "Did not publish"; fi'
+
+#########################
+# Jobs
+#########################
+
 jobs:
   build:
-    machine: true
+    executor: node
     steps:
       - checkout
-      - run: docker build .
+      - yarn_install
+      - yarn_lint
+      - *persist_to_workspace
+  test:
+    executor: node
+    steps:
+      - *attach_workspace
+      - test_all
+      - *store_test_results
+  deploy:
+    executor: node
+    steps:
+      - *attach_workspace
+      - save_npm_token
+      - publish_canary
+      - publish_stable
+
+#########################
+# Workflows
+#########################
+
+workflows:
+  version: 2
+  build-test-and-deploy:
+    jobs:
+      - build
+      - test:
+          requires:
+            - build
+      - deploy:
+          requires:
+            - test
+          filters:
+            branches:
+              only:
+                - master
+                - canary