chore(circleci): add a way to update lockfile

Author: HollyPony

.circleci/config.yml

@@ -6,32 +6,36 @@ 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
+      - image: circleci/node:9-browsers
 
     steps:
       - checkout
 
-      # Download and cache dependencies
       - restore_cache:
           keys:
-          - v1-dependencies-{{ checksum "package.json" }}
+          - dependencies-{{ checksum "package-lock.json" }}
           # fallback to using the latest cache if no exact match is found
-          - v1-dependencies-
+          - dependencies-
+
+      - run:
+        name: Install Dependencies
+        command: npm i
+
+      - run:
+        name: Install Greenkeeper-lockfile
+        command: npm i greenkeeper-lockfile@1
 
-      - run: npm i
+      - run:
+        name: Update the lockfile
+        command: npx greenkeeper-lockfile-update
 
       - save_cache:
           paths:
             - node_modules
-          key: v1-dependencies-{{ checksum "package.json" }}
-        
-      # run tests!
+          key: dependencies-{{ checksum "package-lock.json" }}
+
       - run: npm test
+
+      - run:
+        name: Commit lockfile changes
+        command: npx greenkeeper-lockfile-upload