test/.github/workflows/coverage.yml at main · eggs-cpp/test · GitHub

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# Copyright Agustin K-ballo Berge, Fusion Fenix 2026
#
# Distributed under the Boost Software License, Version 1.0. (See accompanying
# file LICENSE.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

name: coverage

on:
  push:
    branches: [ main, feature/** ]
  pull_request:
    types: [opened, synchronize, reopened]
  workflow_dispatch:

jobs:
  coverage:
    name: ubuntu-24.04 / llvm-cov
    runs-on: ubuntu-24.04
    timeout-minutes: 6

    steps:
      - uses: actions/checkout@v5

      - name: Set up APT package cache
        run: |
          mkdir -p ~/.cache/apt/archives/partial
          echo "Dir::Cache::archives \"$HOME/.cache/apt/archives\";" \
            | sudo tee /etc/apt/apt.conf.d/99user-cache

      - name: Cache APT packages
        uses: actions/cache@v5
        with:
          path: ~/.cache/apt/archives
          key: apt-ubuntu-24.04-clang-22-${{ hashFiles('.github/workflows/coverage.yml') }}
          restore-keys: apt-ubuntu-24.04-clang-22-

      - name: Install Clang 22
        run: |
          wget -q https://apt.llvm.org/llvm.sh
          sudo bash llvm.sh 22 all
          sudo update-alternatives --install /usr/bin/clang   clang   /usr/bin/clang-22   200
          sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-22 200

      - name: Install Ninja
        run: sudo apt-get install -y ninja-build

      - name: Fix APT cache permissions
        if: always()
        run: sudo rm -rf ~/.cache/apt/archives/lock ~/.cache/apt/archives/partial

      - name: Configure (coverage)
        run: |
          cmake --preset dev-clang -B build/coverage \
            -DCMAKE_CXX_FLAGS="-fprofile-instr-generate -fcoverage-mapping" \
            -DCMAKE_EXE_LINKER_FLAGS="-fprofile-instr-generate"

      - name: Build
        run: cmake --build build/coverage --config Debug

      - name: Test
        run: |
          LLVM_PROFILE_FILE="${GITHUB_WORKSPACE}/build/coverage/cov-%p.profraw" \
            ctest --test-dir build/coverage --build-config Debug \
                  --output-on-failure --no-compress-output

      - name: Merge profile data
        run: |
          llvm-profdata-22 merge -sparse build/coverage/cov-*.profraw \
            -o build/coverage/coverage.profdata

      - name: Coverage report
        run: |
          mapfile -t objects < <(find build/coverage -path "*/Debug/*" -type f -perm /111)
          first="${objects[0]}"
          obj_args=()
          for o in "${objects[@]:1}"; do obj_args+=("-object=$o"); done
          llvm-cov-22 report "$first" "${obj_args[@]}" \
            -instr-profile=build/coverage/coverage.profdata \
            -use-color=false src include/eggs 2>/dev/null

      - name: Generate HTML report
        run: |
          mapfile -t objects < <(find build/coverage -path "*/Debug/*" -type f -perm /111)
          first="${objects[0]}"
          obj_args=()
          for o in "${objects[@]:1}"; do obj_args+=("-object=$o"); done
          llvm-cov-22 show "$first" "${obj_args[@]}" \
            -instr-profile=build/coverage/coverage.profdata \
            -format=html \
            -output-dir=build/coverage/html \
            -show-line-counts-or-regions \
            src include/eggs 2>/dev/null

      - name: Upload coverage report
        uses: actions/upload-artifact@v6
        with:
          name: coverage-report-llvm-cov
          path: build/coverage/html/
          retention-days: 7

  coverage-gcov:
    name: ubuntu-24.04 / gcov
    runs-on: ubuntu-24.04
    timeout-minutes: 6

    steps:
      - uses: actions/checkout@v5

      - name: Set up APT package cache
        run: |
          mkdir -p ~/.cache/apt/archives/partial
          echo "Dir::Cache::archives \"$HOME/.cache/apt/archives\";" \
            | sudo tee /etc/apt/apt.conf.d/99user-cache

      - name: Cache APT packages
        uses: actions/cache@v5
        with:
          path: ~/.cache/apt/archives
          key: apt-ubuntu-24.04-gcc-16-${{ hashFiles('.github/workflows/coverage.yml') }}
          restore-keys: apt-ubuntu-24.04-gcc-16-

      - name: Install GCC 16
        run: |
          sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
          sudo apt-get update -q
          sudo apt-get install -y gcc-16 g++-16
          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-16 100 \
                                   --slave /usr/bin/g++ g++ /usr/bin/g++-16

      - name: Install lcov
        run: |
          sudo apt-get install -y libcapture-tiny-perl libdatetime-perl libtimedate-perl
          curl -sL https://github.com/linux-test-project/lcov/releases/download/v2.4/lcov-2.4.tar.gz \
            | tar xz -C "$HOME"
          echo "$HOME/lcov-2.4/bin" >> "$GITHUB_PATH"

      - name: Install Ninja
        run: sudo apt-get install -y ninja-build

      - name: Fix APT cache permissions
        if: always()
        run: sudo rm -rf ~/.cache/apt/archives/lock ~/.cache/apt/archives/partial

      - name: Configure (coverage)
        run: |
          cmake --preset dev-gcc -B build/coverage-gcc \
            -DCMAKE_CXX_FLAGS="--coverage" \
            -DCMAKE_EXE_LINKER_FLAGS="--coverage"

      - name: Build
        run: cmake --build build/coverage-gcc --config Debug

      - name: Test
        run: |
          find build/coverage-gcc -name "*.gcda" -delete
          ctest --test-dir build/coverage-gcc --build-config Debug \
                --output-on-failure --no-compress-output

      - name: Collect coverage
        run: |
          lcov --capture \
               --gcov-tool gcov-16 \
               --ignore-errors mismatch,inconsistent \
               --directory build/coverage-gcc \
               --output-file build/coverage-gcc/coverage.info
          lcov --extract build/coverage-gcc/coverage.info \
               '*/src/*' '*/include/eggs/*' \
               --ignore-errors unused \
               --output-file build/coverage-gcc/coverage.info

      - name: Coverage report
        run: |
          lcov --list build/coverage-gcc/coverage.info

      - name: Generate HTML report
        run: |
          genhtml build/coverage-gcc/coverage.info \
            --output-directory build/coverage-gcc/html \
            --quiet

      - name: Upload coverage report
        uses: actions/upload-artifact@v6
        with:
          name: coverage-report-gcov
          path: build/coverage-gcc/html/
          retention-days: 7