Added Kobalt back to CircleCI.

.circleci/config.yml

@@ -40,8 +40,43 @@ jobs:
       - store_test_results:
           path: build/reports/
 
+  build_kobalt:
+    <<: *defaults
+
+    docker:
+      - image: circleci/openjdk:8-jdk
+
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+          - kobalt-dependencies-{{ checksum "kobalt/src/Build.kt" }}
+          # fallback to using the latest cache if no exact match is found
+          - kobalt-dependencies-
+
+      - run:
+          name: Check Versions
+          command: ./kobaltw checkVersions
+
+      - save_cache:
+          paths: ~/.kobalt
+          key: kobalt-dependencies-{{ checksum "kobalt/src/Build.kt" }}
+
+      - run:
+          name: Assemble & Test
+          command: ./kobaltw assemble test
+
+      - store_artifacts:
+          path: kobaltBuild/test-output/
+          destination: test-output
+      - store_test_results:
+          path: kobaltBuild/test-output/
+
 workflows:
   version: 2
   gradle:
     jobs:
-      - build_gradle
+      - build_gradle
+  kobalt:
+    jobs:
+      - build_kobalt