Make GreenKeeper lockfile updates strictly execute first in CI

.circleci/config.yml

@@ -1,22 +1,50 @@
 version: 2
 
+job_common: &job_common
+  docker:
+    - image: circleci/node:9.11.2
+  working_directory: ~/colonyNetwork
+step_save_cache: &step_save_cache
+  save_cache:
+    paths:
+      - ~/.cache/yarn
+    key: node-modules-{{ checksum "yarn.lock" }}
+step_restore_cache: &step_restore_cache
+  restore_cache:
+    keys:
+      - node-modules-{{ checksum "yarn.lock" }}
+      - node-modules-
+step_setup_global_packages: &step_setup_global_packages
+  run:
+    name: "Set up global packages"
+    command: |
+      yarn --pure-lockfile
+      git submodule update --init
+step_setup_greenkeeper: &step_setup_greenkeeper
+  run:
+    name: "Add greenkeeper-lockfile-update"
+    command: yarn global add greenkeeper-lockfile@1
 jobs:
-  lint-and-unit-test:
-    docker:
-      - image: circleci/node:9.11.2
-    working_directory: ~/colonyNetwork
+  greenkeeper-updates:
+    <<: *job_common
     steps:
       - checkout
-      - restore_cache:
-          keys:
-            - node-modules-{{ checksum "yarn.lock" }}
-            - node-modules-
+      - <<: *step_restore_cache
+      - <<: *step_setup_global_packages
+      - <<: *step_setup_greenkeeper
       - run:
-          name: "Set up global packages"
-          command: |
-            yarn global add greenkeeper-lockfile@1
-            yarn --pure-lockfile
-            git submodule update --init
+          name: "Run Greenkeeper lockfile update"
+          command: $(yarn global bin)/greenkeeper-lockfile-update
+          environment:
+            GK_LOCK_YARN_OPTS: "--ignore-workspace-root-check"
+      - <<: *step_save_cache
+  lint-and-unit-test:
+    <<: *job_common
+    steps:
+      - checkout
+      - <<: *step_restore_cache
+      - <<: *step_setup_global_packages
+      - <<: *step_setup_greenkeeper
       - run:
           name: "Setup parity"
           command: |
@@ -28,20 +56,11 @@ jobs:
             sed -i "s/xxxxx/$(parity --keys-path ./keys --password ./parityPassword account new)/g" ./parity-genesis.json
             sed -i "s/yyyyy/$(parity --keys-path ./keys --password ./parityPassword account new)/g" ./parity-genesis.json
             sed -i "s/zzzzz/$(parity --keys-path ./keys --password ./parityPassword account new)/g" ./parity-genesis.json
-      - save_cache:
-          paths:
-            - node_modules
-          key: node-modules-{{ checksum "yarn.lock" }}
       - run:
           name: "Install lsof"
           command: |
             sudo apt-get update
             sudo apt-get install lsof
-      - run:
-          name: "Greenkeeper lockfile update"
-          command: $(yarn global bin)/greenkeeper-lockfile-update
-          environment:
-            GK_LOCK_YARN_OPTS: "--ignore-workspace-root-check"
       - run:
           name: "Linting JavaScript"
           command: yarn run eslint
@@ -66,6 +85,7 @@ jobs:
       - run:
           name: "Running colony-contract-loader-network tests"
           command: cd packages/colony-js-contract-loader-network && yarn run test
+      - <<: *step_save_cache
       - run:
           name: "Greenkeeper uploading lockfile"
           command: $(yarn global bin)/greenkeeper-lockfile-upload
@@ -74,27 +94,15 @@ jobs:
           path: test-results.xml
       - store_artifacts:
           path: test-results.xml
-
   test-coverage:
-    docker:
-      - image: circleci/node:9.11.2
-    working_directory: ~/colonyNetwork
+    <<: *job_common
     steps:
       - checkout
-      - restore_cache:
-          keys:
-            - node-modules-{{ checksum "yarn.lock" }}
-            - node-modules-
-      - run:
-          name: "Set up global packages"
-          command: |
-            yarn global add greenkeeper-lockfile@1
-            yarn --pure-lockfile
-            git submodule update --init
+      - <<: *step_restore_cache
+      - <<: *step_setup_global_packages
       - run:
           name: "Running unit tests with coverage"
           command: yarn run test:contracts:coverage
-
       # Save coverage artifacts
       - store_artifacts:
           path: coverage
@@ -103,5 +111,10 @@ workflows:
   version: 2
   commit:
     jobs:
-      - lint-and-unit-test
-      - test-coverage
+      - greenkeeper-updates
+      - lint-and-unit-test:
+          requires:
+            - greenkeeper-updates
+      - test-coverage:
+          requires:
+            - greenkeeper-updates