Fix coverage CI (#149)

* Add -fprofile-update=atomic

* Update actions/cache version to v4 in workflow files

* Ignore lcov errors

* Improve lcov command to ignore gcov errors and unused data in coverage reports

Author: zfergus

.github/workflows/continuous.yml

@@ -66,7 +66,7 @@ jobs:
 
       - name: Cache Build
         id: cache-build
-        uses: actions/cache@v4.0.2
+        uses: actions/cache@v4
         with:
           path: ${{ env.CACHE_PATH }}
           key: ${{ runner.os }}-${{ matrix.config }}-cache

.github/workflows/coverage.yml

@@ -35,7 +35,7 @@ jobs:
 
       - name: Cache Build
         id: cache-build
-        uses: actions/cache@v4.0.2
+        uses: actions/cache@v4
         with:
           path: ${{ env.CACHE_PATH }}
           key: coverage-cache
@@ -64,8 +64,8 @@ jobs:
         run: |
           cd build
           ctest --verbose -j ${{ steps.cpu-cores.outputs.count }}
-          lcov --directory . --capture --output-file coverage.info
-          lcov --remove coverage.info '/usr/*' "$HOME/.cache/*" "*tests/*" --output-file coverage.info
+          lcov --directory . --capture --output-file coverage.info --ignore-errors inconsistent,format,gcov
+          lcov --remove coverage.info --ignore-errors unused '/usr/*' "$HOME/.cache/*" "*tests/*" --output-file coverage.info
 
       - name: Upload coverage reports to Codecov
         uses: codecov/codecov-action@v3.1.6

.github/workflows/cuda.yml

@@ -36,7 +36,7 @@ jobs:
         run: |
           sudo apt-get install ccache
           echo 'CACHE_PATH=~/.cache/ccache' >> "$GITHUB_ENV"
-      
+
       - name: cuda-toolkit
         uses: Jimver/cuda-toolkit@v0.2.21
         with:
@@ -49,7 +49,7 @@ jobs:
 
       - name: Cache Build
         id: cache-build
-        uses: actions/cache@v4.0.2
+        uses: actions/cache@v4
         with:
           path: ${{ env.CACHE_PATH }}
           key: ${{ runner.os }}-${{ matrix.config }}-cache

.github/workflows/docs.yml

@@ -31,7 +31,7 @@ jobs:
 
       - name: Cache Build
         id: cache-build
-        uses: actions/cache@v4.0.2
+        uses: actions/cache@v4
         with:
           path: ${{ env.CACHE_PATH }}
           key: docs-cache

.github/workflows/python.yml

@@ -62,7 +62,7 @@ jobs:
 
       - name: Cache Build
         id: cache-build
-        uses: actions/cache@v4.0.2
+        uses: actions/cache@v4
         with:
           path: ${{ env.CACHE_PATH }}
           key: ${{ runner.os }}-Python${{ matrix.python-version }}-cache

CMakeLists.txt

@@ -255,11 +255,15 @@ endif()
 
 if(IPC_TOOLKIT_WITH_CODE_COVERAGE AND CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
   # Add required flags (GCC & LLVM/Clang)
-  target_compile_options(ipc_toolkit PUBLIC
+  target_compile_options(ipc_toolkit PRIVATE
     -g         # generate debug info
     --coverage # sets all required flags
+    -fprofile-update=atomic
+  )
+  target_link_options(ipc_toolkit PUBLIC
+    --coverage
+    -fprofile-update=atomic
   )
-  target_link_options(ipc_toolkit PUBLIC --coverage)
 endif()
 
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