ci: add codecov

Author: oscar60310

.circleci/config.yml

@@ -1,5 +1,5 @@
 version: 2.1
-
+  
 defaults: &defaults
   working_directory: ~/repo
   docker:
@@ -31,6 +31,19 @@ yarn_install: &yarn_install
   name: Install Dependencies
   command: yarn install --frozen-lockfile --non-interactive
 
+codecov_install: &codecov_install
+  name: Install codecov
+  command: |
+    if [ ! -f ./codecov ]; then
+    curl -Os https://uploader.codecov.io/v0.1.0_4653/linux/codecov
+    curl https://keybase.io/codecovsecurity/pgp_keys.asc | gpg --no-default-keyring --keyring trustedkeys.gpg --import # One-time step
+    curl -Os https://uploader.codecov.io/latest/linux/codecov
+    curl -Os https://uploader.codecov.io/latest/linux/codecov.SHA256SUM
+    curl -Os https://uploader.codecov.io/latest/linux/codecov.SHA256SUM.sig
+    gpgv codecov.SHA256SUM.sig codecov.SHA256SUM
+    shasum -a 256 -c codecov.SHA256SUM
+    chmod +x codecov
+    fi
 jobs:
   install:
     <<: *defaults
@@ -45,6 +58,16 @@ jobs:
           paths:
             - ~/.cache
             - node_modules
+      - restore_cache:
+          keys:
+            - codecov-0.1.0_4653
+      - run: 
+          <<: *codecov_install
+      - save_cache:
+          key: codecov-0.1.0_4653
+          paths:
+            - ./codecov
+
   lint:
     <<: *defaults
     steps:
@@ -64,9 +87,14 @@ jobs:
           <<: *set_env
       - restore_cache:
           <<: *yarn_cache
-      - run: yarn nx affected --target=test --head=HEAD --ci --code-coverage --maxWorkers=2 ${AFFECTED_ARGS}
+      - restore_cache:
+          keys:
+            - codecov-0.1.0_4653
+      - run: yarn nx affected --target=test --head=HEAD --ci --coverage --maxWorkers=2 --coverageReporters=lcov ${AFFECTED_ARGS}
         # --maxWorkers=2 is required because we'll run virtual machine with 32 cores CPU (with actually 4 CPI), jest spawns lots of workers if we don't fix the worker size. 
         # https://support.circleci.com/hc/en-us/articles/360005442714-Your-test-tools-are-smart-and-that-s-a-problem-Learn-about-when-optimization-goes-wrong-
+      - run: ./codecov -t ${CODECOV_TOKEN}
+
 workflows:
   version: 2
   pr-check:
@@ -77,4 +105,4 @@ workflows:
             - install
       - test:
           requires:
-            - install
+            - install