ci: add precise commits code formatting check

Author: clydin

.circleci/config.yml

@@ -85,6 +85,12 @@ jobs:
     steps:
       - attach_workspace: *attach_options
       - run: npm run validate -- --ci
+      - run:
+          name: Validate Code Formatting
+          command: |
+            if [[ -n "${CIRCLE_PR_NUMBER}" ]]; then
+              yarn run precise-commits --check-only --head=$CIRCLE_SHA1 --base=$(git merge-base HEAD $CIRCLE_BRANCH)
+            fi
 
   test:
     <<: *defaults