Added Codecov coverage reporting

Author: gistrec

.github/workflows/ci.yml

@@ -26,3 +26,29 @@ jobs:
 
       - name: Test
         run: ctest --test-dir build -C Release --output-on-failure
+
+  coverage:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install gcovr
+        run: pip install gcovr
+
+      - name: Configure
+        run: cmake -S . -B build -DBUILD_TESTING=ON -DENABLE_COVERAGE=ON
+
+      - name: Build
+        run: cmake --build build
+
+      - name: Test
+        run: ctest --test-dir build --output-on-failure
+
+      - name: Generate coverage report
+        run: gcovr --xml coverage.xml --root . --filter 'include/' build/
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: coverage.xml

CMakeLists.txt

@@ -36,6 +36,12 @@ if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
             PRIVATE CppGeometryLibrary GTest::GTest GTest::Main
         )
         add_test(NAME cpp_geometry_tests COMMAND cpp_geometry_tests)
+
+        option(ENABLE_COVERAGE "Enable gcov coverage instrumentation (GCC/Clang only)" OFF)
+        if(ENABLE_COVERAGE)
+            target_compile_options(cpp_geometry_tests PRIVATE --coverage)
+            target_link_options(cpp_geometry_tests PRIVATE --coverage)
+        endif()
     endif()
 
     add_executable(cpp_geometry_sample samples/samples.cpp)

README.md

@@ -4,6 +4,9 @@
     <a href="https://github.com/gistrec/cpp-geometry-library/actions/workflows/ci.yml">
         <img src="https://github.com/gistrec/cpp-geometry-library/actions/workflows/ci.yml/badge.svg" alt="CI">
     </a>
+    <a href="https://codecov.io/gh/gistrec/cpp-geometry-library">
+      <img src="https://codecov.io/gh/gistrec/cpp-geometry-library/graph/badge.svg" alt="Coverage">
+    </a>
     <a href="#">
       <img src="https://img.shields.io/codacy/grade/bcff544711544d5fb7da95b68abf566d" alt="Code quality">
     </a>