Experiment with Code Climate on Travis.

.travis.yml

@@ -1,3 +1,6 @@
+env:
+  global:
+    - CC_TEST_REPORTER_ID=38ad11f95f28b1d33c9c31467f9eb5eb4e336e4e0e36046c86a4f7ff6e4c3977
 language: go
 go:
   - "1.10"
@@ -13,6 +16,12 @@ before_install:
   - ./update-deps-linux
   - ./dev-update-travis
 install: true
+before_script:
+  - curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
+  - chmod +x ./cc-test-reporter
+  - ./cc-test-reporter before-build
 script: ./run-linux-tests
+after_script:
+  - ./cc-test-reporter after-build --exit-code $TRAVIS_TEST_RESULT
 addons:
   mariadb: '10.0'