config.yml in ddtrace-0.40.0

- old
+ new

@@ -160,26 +160,37 @@
           - <<: *container_base
             image: <<parameters.image>>
             environment:
               - BUNDLE_GEMFILE: /app/Gemfile
               - TEST_DATADOG_INTEGRATION: 1
+              - COVERAGE_BASE_DIR: coverage
           - *container_postgres
           - *container_presto
           - *container_mysql
           - *container_elasticsearch
           - *container_redis
           - *container_mongo
           - *container_memcached
           - *container_agent
+        parallelism: 22
         steps:
           - restore_cache:
               keys:
                 - '{{ .Environment.CIRCLE_CACHE_VERSION }}-bundled-repo-<<parameters.ruby_version>>-{{ .Environment.CIRCLE_SHA1 }}'
           - restore_cache:
               keys:
                 - '{{ .Environment.CIRCLE_CACHE_VERSION }}-bundle-<<parameters.ruby_version>>-{{ checksum ".circleci/bundle_checksum" }}'
+          - run:
+              name: Set coverage report directory
+              command: |
+                # Create a unique coverage directory for this job, to avoid conflicts when merging all results
+                echo 'export COVERAGE_DIR="$COVERAGE_BASE_DIR/versions/$CIRCLE_JOB/$CIRCLE_NODE_INDEX"' >> $BASH_ENV
           - *step_run_all_tests
+          - persist_to_workspace:
+              root: .
+              paths:
+                - coverage
       benchmark:
         <<: *job_defaults
         parameters:
           ruby_version:
             description: Ruby version
@@ -229,10 +240,42 @@
                 - '{{ .Environment.CIRCLE_CACHE_VERSION }}-bundled-repo-<<parameters.ruby_version>>-{{ .Environment.CIRCLE_SHA1 }}'
           - restore_cache:
               keys:
                 - '{{ .Environment.CIRCLE_CACHE_VERSION }}-bundle-<<parameters.ruby_version>>-{{ checksum ".circleci/bundle_checksum" }}'
           - *step_rubocop
+      coverage:
+        <<: *job_defaults
+        parameters:
+          ruby_version:
+            description: Ruby version
+            type: string
+          image:
+            description: Docker image location
+            type: string
+        docker:
+          - <<: *container_base
+            image: <<parameters.image>>
+            environment:
+              - BUNDLE_GEMFILE: /app/Gemfile
+        steps:
+          - restore_cache:
+              keys:
+                - '{{ .Environment.CIRCLE_CACHE_VERSION }}-bundled-repo-<<parameters.ruby_version>>-{{ .Environment.CIRCLE_SHA1 }}'
+          - restore_cache:
+              keys:
+                - '{{ .Environment.CIRCLE_CACHE_VERSION }}-bundle-<<parameters.ruby_version>>-{{ checksum ".circleci/bundle_checksum" }}'
+          - attach_workspace:
+              at: /tmp/workspace
+          - run:
+              name: Generate coverage report artifact "coverage/index.html"
+              command: COVERAGE_DIR=/tmp/workspace/coverage bundle exec rake coverage:report
+          - run:
+              name: Generate coverage report artifact "coverage/versions/*/index.html"
+              command: COVERAGE_DIR=/tmp/workspace/coverage bundle exec rake coverage:report_per_ruby_version
+          - store_artifacts:
+              path: /tmp/workspace/coverage/report/
+              destination: coverage
     commands:
     executors:
 
 jobs:
   "deploy release":
@@ -337,9 +380,22 @@
       - orb/lint:
           <<: *config-2_6
           name: lint
           requires:
             - build-2.6
+      - orb/coverage:
+          <<: *config-2_7
+          name: coverage
+          requires:
+            - test-2.0
+            - test-2.1
+            - test-2.2
+            - test-2.3
+            - test-2.4
+            - test-2.5
+            - test-2.6
+            - test-2.7
+            - test-jruby-9.2
       # MRI
       - orb/checkout:
           <<: *config-2_0
           name: checkout-2.0
       - orb/build: