Enforce patch code coverage

Author: cffls

.github/workflows/ci.yml

@@ -180,3 +180,6 @@ jobs:
         uses: actions/[email protected]
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v3
+        with:
+          fail_ci_if_error: true
+          verbose: true

codecov.yml

@@ -0,0 +1,18 @@
+coverage:
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 0%
+        informational: false
+    patch:
+      default:
+        target: 90%
+        threshold: 0%
+        informational: false
+
+comment:
+  layout: "reach,diff,flags,tree,files"
+  behavior: default
+  require_changes: false
+