Add codecov configuration file

.github/workflows/ci.yml

@@ -29,12 +29,24 @@ jobs:
       - name: Install cargo-llvm-cov
         uses: taiki-e/install-action@cargo-llvm-cov
 
+      - name: Install lcov
+        run: sudo apt-get install lcov
+
       - name: Build project
         run: cargo build --verbose
 
       - name: Generate coverage report
         run: cargo llvm-cov --lcov --output-path lcov.info
 
+      - name: Check coverage threshold
+        run: |
+          COVERAGE=$(lcov --summary lcov.info | grep "lines" | cut -d ':' -f 2 | cut -d '%' -f 1 | xargs)
+          echo "Coverage: $COVERAGE%"
+          if (( $(echo "$COVERAGE < 80" | bc -l) )); then
+          echo "Coverage is below 80%"
+          exit 1
+          fi
+
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v5
         with:

codecov.yml

@@ -0,0 +1,9 @@
+coverage:
+  status:
+    project:
+      default:
+        target: 80%
+        threshold: 1%
+    patch:
+      default:
+        target: 80%