Switched to grcov for coverage reports

Author: bkryza

.github/workflows/build.yml

@@ -37,7 +37,7 @@ jobs:
       with:
         max-size: "2000M"
     - name: Install deps
-      run: sudo apt -y install git make ninja-build pkg-config gcc g++ ccache cmake libyaml-cpp-dev llvm-18 clang-18 libclang-18-dev libclang-cpp18-dev clang-format-18 lcov zlib1g-dev libunwind-dev libdw-dev gnustep-back-common libgnustep-base-dev gnustep-make
+      run: sudo apt -y install git make grcov ninja-build pkg-config gcc g++ ccache cmake libyaml-cpp-dev llvm-18 clang-18 libclang-18-dev libclang-cpp18-dev clang-format-18 lcov zlib1g-dev libunwind-dev libdw-dev gnustep-back-common libgnustep-base-dev gnustep-make
     - name: Check code formatting
       run: |
         make check-formatting
@@ -46,15 +46,13 @@ jobs:
         CC=/usr/bin/clang-18 CXX=/usr/bin/clang++-18 LLVM_VERSION=18 NUMPROC=2 CMAKE_GENERATOR=Ninja CODE_COVERAGE=ON LLVM_VERSION=18 ENABLE_CXX_MODULES_TEST_CASES=ON ENABLE_CUDA_TEST_CASES=OFF ENABLE_OBJECTIVE_C_TEST_CASES=ON FETCH_LIBOBJC2=ON CLANG_UML_ENABLE_BACKTRACE=ON make test
     - name: Run coverage
       run: |
-        lcov -c -d debug -o coverage.info
-        lcov -r coverage.info -o coverage-src.info "$PWD/src/main.cc" "$PWD/src/common/generators/generators.cc"
-        lcov -e coverage-src.info -o coverage-src.info "$PWD/src/*"
-        lcov -l coverage-src.info
+        grcov --llvm --binary-path debug --output-path coverage.info -t lcov --keep-only 'src/*' --source-dir . --ignore src/main.cc --ignore src/common/generators/generators.cc  .
+        lcov --ignore-errors inconsistent -l coverage.info
     - name: Upload coverage
       uses: codecov/codecov-action@v3
       with:
-        files: coverage-src.info
+        files: coverage.info
         disable_search: true
         name: clang-uml
         token: ${{ secrets.CODECOV_TOKEN }}
-        fail_ci_if_error: false
+        fail_ci_if_error: false

CMakeLists.txt

@@ -66,8 +66,9 @@ message(STATUS "clang-uml version: "
 #
 option(CODE_COVERAGE "" OFF)
 if(CODE_COVERAGE)
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} --coverage -fno-inline")
-    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lgcov --coverage")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O0 -g --coverage -fno-inline")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O0 -g --coverage -fno-inline")
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lgcov")
 endif(CODE_COVERAGE)
 
 #

Makefile

@@ -136,7 +136,7 @@ test_release: release
 	CTEST_OUTPUT_ON_FAILURE=1 ctest --test-dir release
 
 coverage_report: test
-	lcov -c -d debug -o coverage.info
+	lcov -c -d debug -o coverage.info --no-external --gcov-tool util/clang_gcov.sh
 	lcov -r coverage.info -o coverage-src.info "${PWD}/src/main.cc" "${PWD}/src/common/generators/generators.cc"
 	lcov -e coverage-src.info -o coverage-src.info "${PWD}/src/*"
 	lcov -l coverage-src.info

util/clang_gcov.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+exec llvm-cov-18 gcov "$@"