Try setting the branch

Author: bouweandela

.circleci/config.yml

@@ -28,7 +28,19 @@ jobs:
             pixi run --as-is esmvaltool -- --help
             pixi run --as-is esmvaltool config list
             pixi run --as-is esmvaltool config show
+      - run:
+          name: Set the branch name for upload to Codecov
+          command: |
+            repo=${CIRCLE_PR_USERNAME}/${CIRCLE_PR_REPONAME}
+            branch=$(git branch --show-current)
+            if [ -z "$CODECOV_TOKEN" ] && [ "${repo}" != "${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}" ]; then
+              codecov_branch=${repo}:${branch}
+            else
+              codecov_branch=${branch}
+            fi
+            echo "export CODECOV_BRANCH=${codecov_branch}" >> $BASH_ENV
       - codecov/upload:
+          branch: ${CODECOV_BRANCH}
           files: "test-reports/coverage.xml"
           disable_search: true
       - store_test_results: