Attempt to get greenkeeper-lockfile working

.circleci/config.yml

@@ -1,40 +1,27 @@
-# 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 and restore dependency cache
       - 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
+          key: v2-dependencies-{{ checksum "yarn.lock" }}
 
+      # Download and cache dependencies
+      - lockfile:
+        - yarn global add greenkeeper-lockfile@1
+      - run: greenkeeper-lockfile-update
+      - run: yarn install --frozen-lockfile --non-interactive
+      - run: greenkeeper-lockfile-upload
       - save_cache:
+          key: v2-dependencies-{{ checksum "yarn.lock" }}
           paths:
-            - node_modules
-          key: v1-dependencies-{{ checksum "package.json" }}
+            - "node_modules"
 
-      # run tests!
+      # run tests and report the coverage
       - run: yarn test --coverage && yarn report-coverage
-
-
-