Add C++ coverage configuration and workflow

.bazelrc

@@ -45,16 +45,16 @@ build:build_qnx8 --extra_toolchains=@toolchains_qnx_ifs//:ifs_aarch64
 common --extra_toolchains=@gcc_toolchain//:host_gcc_12
 common --extra_toolchains=@score_toolchains_rust//toolchains/x86_64-unknown-linux-gnu:toolchain_x86_64_linux
 
-# With this instrumentation filter for our two main components, we ensure that `bazel coverage //...` is yielding the correct results
-coverage --instrumentation_filter="^//score/datarouter[/:],^//score/mw/log[/:],-//score/mw/.*/test[/:]"
-coverage --experimental_generate_llvm_lcov
-coverage --experimental_use_llvm_covmap
+# Coverage configuration for C++
+coverage --features=coverage
 coverage --combined_report=lcov
-coverage --coverage_report_generator=@bazel_tools//tools/test/CoverageOutputGenerator/java/com/google/devtools/coverageoutputgenerator:Main
-coverage --test_env=COVERAGE_GCOV_OPTIONS=-bcu
-# TODO set toolchain feature once possible
-# These compile time options are required to cover abnormal termination cases. In GCC one can use `__gcc_dump()`, but this does not work with LLVM
-# LLVM provided these compile-time options in combination with a specific profile setting which is enabled in bazel via `LLVM_PROFILE_CONTINUOUS_MODE`
-coverage --test_env=LLVM_PROFILE_CONTINUOUS_MODE=1
-coverage --cxxopt -mllvm
-coverage --cxxopt -runtime-counter-relocation
+coverage --cache_test_results=no
+coverage --instrumentation_filter="^//score[/:]"
+
+# Coverage configuration
+build:blcov-x86_64-linux --incompatible_strict_action_env
+build:blcov-x86_64-linux --platforms=@score_bazel_platforms//:x86_64-linux-gcc_12.2.0-posix
+build:blcov-x86_64-linux --extra_toolchains=@score_gcc_x86_64_toolchain//:x86_64-linux-gcc_12.2.0-posix
+test:blcov-x86_64-linux --build_tests_only
+test:blcov-x86_64-linux --test_tag_filters=-manual
+test:blcov-x86_64-linux --test_output=errors

.github/workflows/coverage_report.yml

@@ -0,0 +1,65 @@
+# *******************************************************************************
+# Copyright (c) 2025 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Apache License Version 2.0 which is available at
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# SPDX-License-Identifier: Apache-2.0
+# *******************************************************************************
+
+name: Code Coverage
+on:
+  pull_request:
+    types: [opened, reopened, synchronize]
+  push:
+    branches:
+      - main
+  merge_group:
+    types: [checks_requested]
+
+jobs:
+  coverage-report:
+    runs-on: ubuntu-22.04
+
+    permissions:
+      contents: read
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v6
+
+      - name: Install lcov
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y lcov
+      - name: Setup Bazel
+        uses: bazel-contrib/setup-bazel@0.18.0
+        with:
+          bazelisk-cache: true
+          disk-cache: ${{ github.workflow }}
+          repository-cache: true
+          cache-save: ${{ github.event_name != 'pull_request' }}
+
+      - name: Run Bazel Coverage
+        run: |
+          bazel coverage --config=blcov-x86_64-linux -- //score/... //tests/...
+      - name: Generate HTML Coverage Report
+        run: |
+          genhtml "$(bazel info output_path)/_coverage/_coverage_report.dat" \
+            -o=cpp_coverage \
+            --show-details \
+            --legend \
+            --function-coverage \
+            --branch-coverage
+        shell: bash
+
+      - name: Upload Coverage Artifacts
+        uses: actions/upload-artifact@v6
+        with:
+          name: ${{ github.event.repository.name }}_coverage_report
+          path: cpp_coverage/
+          retention-days: 30

MODULE.bazel

@@ -26,7 +26,7 @@ bazel_dep(name = "buildifier_prebuilt", version = "7.3.1")
 bazel_dep(name = "platforms", version = "1.0.0")
 
 # S-CORE process rules
-bazel_dep(name = "score_bazel_platforms", version = "0.0.3")
+bazel_dep(name = "score_bazel_platforms", version = "0.0.4")
 bazel_dep(name = "score_docs_as_code", version = "2.2.0")
 bazel_dep(name = "score_tooling", version = "1.0.4")
 bazel_dep(name = "score_rust_policies", version = "0.0.3")
@@ -35,6 +35,7 @@ bazel_dep(name = "score_process", version = "1.4.0", dev_dependency = True)
 bazel_dep(name = "score_platform", version = "0.5.1", dev_dependency = True)  # This is main score repo
 
 # Toolchains and extensions
+bazel_dep(name = "score_bazel_cpp_toolchains", version = "0.2.0", dev_dependency = True)
 bazel_dep(name = "score_toolchains_gcc", version = "0.5", dev_dependency = True)
 bazel_dep(name = "score_toolchains_qnx", version = "0.0.6", dev_dependency = True)
 bazel_dep(name = "rust_qnx8_toolchain", version = "1.2.0", dev_dependency = True)
@@ -66,12 +67,23 @@ archive_override(
 
 # Extensions
 
+gcc_cpp = use_extension("@score_bazel_cpp_toolchains//extensions:gcc.bzl", "gcc", dev_dependency = True)
+gcc_cpp.toolchain(
+    name = "score_gcc_x86_64_toolchain",
+    target_cpu = "x86_64",
+    target_os = "linux",
+    use_default_package = True,
+    version = "12.2.0",
+)
+use_repo(gcc_cpp, "score_gcc_x86_64_toolchain")
+
 gcc = use_extension("@score_toolchains_gcc//extentions:gcc.bzl", "gcc", dev_dependency = True)
 gcc.toolchain(
     sha256 = "457f5f20f57528033cb840d708b507050d711ae93e009388847e113b11bf3600",
     strip_prefix = "x86_64-unknown-linux-gnu",
     url = "https://github.com/eclipse-score/toolchains_gcc_packages/releases/download/0.0.1/x86_64-unknown-linux-gnu_gcc12.tar.gz",
 )
+use_repo(gcc, "gcc_toolchain", "gcc_toolchain_gcc")
 
 # TRLC dependency for requirements traceability
 bazel_dep(name = "trlc", version = "0.0.0", dev_dependency = True)
@@ -81,8 +93,6 @@ git_override(
     remote = "https://github.com/bmw-software-engineering/trlc.git",
 )
 
-use_repo(gcc, "gcc_toolchain", "gcc_toolchain_gcc")
-
 toolchains_qnx = use_extension("@score_toolchains_qnx//:extensions.bzl", "toolchains_qnx", dev_dependency = True)
 toolchains_qnx.sdp(
     sha256 = "f2e0cb21c6baddbcb65f6a70610ce498e7685de8ea2e0f1648f01b327f6bac63",