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[ci] Generate coverage report
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‎.github/workflows/coverage.yml‎

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# Copyright Agustin K-ballo Berge, Fusion Fenix 2026
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#
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# Distributed under the Boost Software License, Version 1.0. (See accompanying
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# file LICENSE.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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name: coverage
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on:
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push:
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branches: [ main, feature/** ]
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pull_request:
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types: [opened, synchronize, reopened]
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workflow_dispatch:
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jobs:
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coverage:
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name: ubuntu-24.04 / llvm-cov
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runs-on: ubuntu-24.04
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timeout-minutes: 6
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steps:
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- uses: actions/checkout@v5
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- name: Set up APT package cache
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run: |
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mkdir -p ~/.cache/apt/archives/partial
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echo "Dir::Cache::archives \"$HOME/.cache/apt/archives\";" \
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| sudo tee /etc/apt/apt.conf.d/99user-cache
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- name: Cache APT packages
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uses: actions/cache@v5
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with:
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path: ~/.cache/apt/archives
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key: apt-ubuntu-24.04-clang-22-${{ hashFiles('.github/workflows/coverage.yml') }}
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restore-keys: apt-ubuntu-24.04-clang-22-
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- name: Install Clang 22
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run: |
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wget -q https://apt.llvm.org/llvm.sh
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sudo bash llvm.sh 22 all
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sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-22 200
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sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-22 200
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- name: Install Ninja
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run: sudo apt-get install -y ninja-build
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- name: Fix APT cache permissions
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if: always()
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run: sudo rm -rf ~/.cache/apt/archives/lock ~/.cache/apt/archives/partial
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- name: Configure (coverage)
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run: |
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cmake --preset dev-clang -B build/coverage \
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-DCMAKE_CXX_FLAGS="-fprofile-instr-generate -fcoverage-mapping" \
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-DCMAKE_EXE_LINKER_FLAGS="-fprofile-instr-generate"
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- name: Build
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run: cmake --build build/coverage --config Debug
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- name: Test
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run: |
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LLVM_PROFILE_FILE="${GITHUB_WORKSPACE}/build/coverage/cov-%p.profraw" \
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ctest --test-dir build/coverage --build-config Debug \
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--output-on-failure --no-compress-output
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- name: Merge profile data
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run: |
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llvm-profdata-22 merge -sparse build/coverage/cov-*.profraw \
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-o build/coverage/coverage.profdata
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- name: Coverage report
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run: |
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mapfile -t objects < <(find build/coverage -path "*/Debug/*" -type f -perm /111)
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first="${objects[0]}"
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obj_args=()
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for o in "${objects[@]:1}"; do obj_args+=("-object=$o"); done
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llvm-cov-22 report "$first" "${obj_args[@]}" \
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-instr-profile=build/coverage/coverage.profdata \
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-use-color=false src include/eggs 2>/dev/null
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- name: Generate HTML report
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run: |
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mapfile -t objects < <(find build/coverage -path "*/Debug/*" -type f -perm /111)
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first="${objects[0]}"
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obj_args=()
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for o in "${objects[@]:1}"; do obj_args+=("-object=$o"); done
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llvm-cov-22 show "$first" "${obj_args[@]}" \
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-instr-profile=build/coverage/coverage.profdata \
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-format=html \
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-output-dir=build/coverage/html \
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-show-line-counts-or-regions \
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src include/eggs 2>/dev/null
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- name: Upload coverage report
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uses: actions/upload-artifact@v6
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with:
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name: coverage-report-llvm-cov
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path: build/coverage/html/
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retention-days: 7
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coverage-gcov:
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name: ubuntu-24.04 / gcov
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runs-on: ubuntu-24.04
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timeout-minutes: 6
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steps:
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- uses: actions/checkout@v5
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- name: Set up APT package cache
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run: |
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mkdir -p ~/.cache/apt/archives/partial
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echo "Dir::Cache::archives \"$HOME/.cache/apt/archives\";" \
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| sudo tee /etc/apt/apt.conf.d/99user-cache
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- name: Cache APT packages
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uses: actions/cache@v5
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with:
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path: ~/.cache/apt/archives
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key: apt-ubuntu-24.04-gcc-16-${{ hashFiles('.github/workflows/coverage.yml') }}
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restore-keys: apt-ubuntu-24.04-gcc-16-
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- name: Install GCC 16
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run: |
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sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
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sudo apt-get update -q
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sudo apt-get install -y gcc-16 g++-16 lcov
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sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-16 100 \
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--slave /usr/bin/g++ g++ /usr/bin/g++-16
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- name: Install Ninja
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run: sudo apt-get install -y ninja-build
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- name: Fix APT cache permissions
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if: always()
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run: sudo rm -rf ~/.cache/apt/archives/lock ~/.cache/apt/archives/partial
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- name: Configure (coverage)
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run: |
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cmake --preset dev-gcc -B build/coverage-gcc \
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-DCMAKE_CXX_FLAGS="--coverage" \
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-DCMAKE_EXE_LINKER_FLAGS="--coverage"
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- name: Build
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run: cmake --build build/coverage-gcc --config Debug
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- name: Test
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run: |
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find build/coverage-gcc -name "*.gcda" -delete
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ctest --test-dir build/coverage-gcc --build-config Debug \
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--output-on-failure --no-compress-output
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- name: Collect coverage
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run: |
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lcov --capture \
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--gcov-tool gcov-16 \
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--ignore-errors mismatch \
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--directory build/coverage-gcc \
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--output-file build/coverage-gcc/coverage.info
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lcov --extract build/coverage-gcc/coverage.info \
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'*/src/*' '*/include/eggs/*' \
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--ignore-errors unused \
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--output-file build/coverage-gcc/coverage.info
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- name: Coverage report
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run: |
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lcov --list build/coverage-gcc/coverage.info
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- name: Generate HTML report
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run: |
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genhtml build/coverage-gcc/coverage.info \
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--output-directory build/coverage-gcc/html \
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--quiet
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- name: Upload coverage report
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uses: actions/upload-artifact@v6
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with:
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name: coverage-report-gcov
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path: build/coverage-gcc/html/
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retention-days: 7

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