configure codecov properly (#10375)

Fixes #10245
Related to near/near-one-project-tracking#12

.github/workflows/ci.yml

@@ -310,6 +310,8 @@ jobs:
       - uses: actions/download-artifact@v3
         with:
           name: coverage
+      # Keep the number of uploads here in sync with codecov.yml’s after_n_build value
+      # codecov will send a comment only after having receidev this number of uploads.
       - uses: codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d
         with:
           token: ${{ secrets.CODECOV_TOKEN }}

codecov.yml

@@ -0,0 +1,31 @@
+codecov:
+  notify:
+    after_n_builds: 10 # Keep in sync with .github/workflows/ci.yml
+
+coverage:
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 5%
+    patch:
+      default: false
+
+component_management:
+  default_rules:
+    paths:
+      - "!debug_scripts/**"
+      - "!docs/**"
+      - "!genesis-tools/**"
+      - "!nightly/**"
+      - "!tools/**"
+    statuses:
+      - type: project
+        target: auto
+        threshold: 0.1%
+      - type: patch
+        target: auto
+  individual_components:
+    - component_id: unit-tests
+      flag_regexes: ["unittests"]
+    - component_id: all-tests