restore circleci config with create_concatenated_package_lock command

.circleci/config.yml

@@ -0,0 +1,49 @@
+# JavaScript Node CircleCI 2.0 configuration file
+#
+# Check https://circleci.com/docs/2.0/language-javascript/ for more details
+#
+version: 2
+
+commands:
+    create_concatenated_package_lock:
+    description: "Concatenate all package-lock.json files recognized by lerna.js into single file. File is used as checksum source for part of caching key."
+parameters:
+  filename:
+      type: string
+  steps:
+    - run:
+      name: Combine package-lock.json files to single file
+      command: npx lerna list -p -a | awk -F packages '{printf "\"packages%s/package-lock.json\" ", $2}' | xargs cat > << parameters.filename >>
+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: ~/node-go
+
+    steps:
+      - checkout
+
+      # Download and cache dependencies
+      - restore_cache:
+          keys:
+            - v1-dependencies-{{ checksum "package-lock.json" }}
+            # fallback to using the latest cache if no exact match is found
+            
+
+      - run: yarn install
+
+      - save_cache:
+          paths:
+            - node_modules
+          key: 
+            v1-dependencies-{{ checksum "package-lock.json" }}
+
+      # run tests!
+      - run: yarn test