chore: migrate to yarn and update docker image to nodejs v10

.circleci/config.yml

@@ -1,128 +1,141 @@
 # To validate changes, use an online parser, eg.
 # http://yaml-online-parser.appspot.com/
 
-defaults: &defaults
+var_3: &job_defaults
     working_directory: ~/mosaic
     docker:
-      - image: ptsecurity/node-container:0.0.4
+        - image: ptsecurity/node-container:0.1.0
 
-package_lock_key: &root_package_lock_key
-  key: mosaic-cache-{{ checksum "package-lock.json" }}
+var_2: &cache_key mosaic-cache-{{ .Branch }}-{{ checksum "yarn.lock" }}-0.1.0
+
+# Restores the cache that could be available for the current Yarn lock file.
+var_5: &restore_cache
+    restore_cache:
+        key: *cache_key
 
 # After checkout, rebase on top of master.
 # Similar to travis behavior, but not quite the same.
 # See https://discuss.circleci.com/t/1662
-post_checkout: &post_checkout
-  post: git pull --ff-only origin "refs/pull/${CI_PULL_REQUEST//*pull\//}/merge"
+var_4: &checkout_code
+    checkout:
+        # After checkout, rebase on top of master. By default, PRs are not rebased on top of master,
+        # which we want. See https://discuss.circleci.com/t/1662
+        post: git pull --ff-only origin "refs/pull/${CI_PULL_REQUEST//*pull\//}/merge"
+
+var_6: &save_cache
+    save_cache:
+        key: *cache_key
+        paths:
+            - "node_modules"
+
+var_7: &yarn_install
+    run: yarn install --frozen-lockfile --non-interactive
 
 attach_options: &attach_options
     at: .
 
 version: 2
 jobs:
-  install:
-    <<: *defaults
-    steps:
-      - checkout: *post_checkout
-      - restore_cache: *root_package_lock_key
-      - run: npm install --no-save
-      - persist_to_workspace:
-          root: .
-          paths:
-            - ./*
-      - save_cache:
-          <<: *root_package_lock_key
-          paths:
-            - node_modules
-
-  validate_licenses:
-    <<: *defaults
-    steps:
-      - attach_workspace: *attach_options
-      - run: npm run valid:lic
-
-  build_mosaic:
-    <<: *defaults
-    steps:
-      - attach_workspace: *attach_options
-      - run: npm run build:lib
-
-  build_cdk:
-      <<: *defaults
-      steps:
-        - attach_workspace: *attach_options
-        - run: npm run build:cdk
-
-  test_unit:
-    <<: *defaults
-    steps:
-      - attach_workspace: *attach_options
-      - run:
-          command: npm run test:unit
-          environment:
-            JUNIT_REPORT_PATH: ./junit/
-            JUNIT_REPORT_NAME: test-results.xml
-          when: always
-      - store_test_results:
-          path: ./junit
-      - store_artifacts:
-          path: ./junit
-
-  snapshot_publish:
-    <<: *defaults
-    steps:
-      - add_ssh_keys:
-          fingerprints:
-            - "c3:de:eb:9c:82:70:a8:23:f3:4e:92:b8:07:d2:22:df"
-      - checkout: *post_checkout
-      - restore_cache: *root_package_lock_key
-      - run: npm run build:cdk
-      - run: npm run build:lib
-      - run: ./scripts/deploy/publish-artifacts.sh
-
-  docs_publish:
-    <<: *defaults
-    steps:
-      - add_ssh_keys:
-          fingerprints:
-            - "c3:de:eb:9c:82:70:a8:23:f3:4e:92:b8:07:d2:22:df"
-      - checkout: *post_checkout
-      - restore_cache: *root_package_lock_key
-      - run: ./scripts/deploy/publish-docs.sh
+    install:
+        <<: *job_defaults
+        steps:
+            - *checkout_code
+            - *restore_cache
+            - *yarn_install
+            - persist_to_workspace:
+                  root: .
+                  paths:
+                      - ./*
+            - *save_cache
+
+    validate_licenses:
+        <<: *job_defaults
+        steps:
+            - attach_workspace: *attach_options
+            - run: npm run valid:lic
+
+    build_mosaic:
+        <<: *job_defaults
+        steps:
+            - attach_workspace: *attach_options
+            - run: npm run build:lib
+
+    build_cdk:
+        <<: *job_defaults
+        steps:
+            - attach_workspace: *attach_options
+            - run: npm run build:cdk
+
+    test_unit:
+        <<: *job_defaults
+        steps:
+            - attach_workspace: *attach_options
+            - run:
+                  command: npm run test:unit
+                  environment:
+                      JUNIT_REPORT_PATH: ./junit/
+                      JUNIT_REPORT_NAME: test-results.xml
+                  when: always
+            - store_test_results:
+                  path: ./junit
+            - store_artifacts:
+                  path: ./junit
+
+    snapshot_publish:
+        <<: *job_defaults
+        steps:
+            - add_ssh_keys:
+                  fingerprints:
+                      - "c3:de:eb:9c:82:70:a8:23:f3:4e:92:b8:07:d2:22:df"
+            - *checkout_code
+            - *restore_cache
+            - run: npm run build:cdk
+            - run: npm run build:lib
+            - run: ./scripts/deploy/publish-artifacts.sh
+
+    docs_publish:
+        <<: *job_defaults
+        steps:
+            - add_ssh_keys:
+                  fingerprints:
+                      - "c3:de:eb:9c:82:70:a8:23:f3:4e:92:b8:07:d2:22:df"
+            - *checkout_code
+            - *restore_cache
+            - run: ./scripts/deploy/publish-docs.sh
 
 
 workflows:
-  version: 2
-  default_workflow:
-    jobs:
-      - install
-      - validate_licenses:
-          requires:
-            - install
-      - build_cdk:
-          requires:
-            - install
-      - build_mosaic:
-          requires:
+    version: 2
+    default_workflow:
+        jobs:
             - install
-      - test_unit:
-          requires:
-            - build_cdk
-            - build_mosaic
-      - snapshot_publish:
-          requires:
-            - test_unit
-            - build_cdk
-            - build_mosaic
-          filters:
-            branches:
-              only:
-                - master
-      - docs_publish:
-          requires:
-            - test_unit
-            - build_mosaic
-          filters:
-            branches:
-              only:
-                - master
+            - validate_licenses:
+                  requires:
+                      - install
+            - build_cdk:
+                  requires:
+                      - install
+            - build_mosaic:
+                  requires:
+                      - install
+            - test_unit:
+                  requires:
+                      - build_cdk
+                      - build_mosaic
+            - snapshot_publish:
+                  requires:
+                      - test_unit
+                      - build_cdk
+                      - build_mosaic
+                  filters:
+                      branches:
+                          only:
+                              - master
+            - docs_publish:
+                  requires:
+                      - test_unit
+                      - build_mosaic
+                  filters:
+                      branches:
+                          only:
+                              - master

.gitignore

@@ -1,3 +1,5 @@
+package-lock.json
+
 # folders
 node_modules/
 coverage/

.npmrc

@@ -1 +1,2 @@
 registry=https://registry.npmjs.org/
+package-lock=false