prometheus-cpp/.github/workflows/coverage.yml

name: Coverage
on: [push, pull_request]

jobs:
  build:
    name: Code Coverage
    runs-on: ubuntu-20.04
    steps:
      - name: Checkout source
        uses: actions/checkout@v2

      - name: Mount vcpkg cache
        uses: actions/cache@v2
        with:
          path: "~/.cache/vcpkg/archives"
          key: vcpkg-${{ runner.os }}

      - name: Install vcpkg dependencies
        run: vcpkg install benchmark civetweb curl[core] gtest zlib

      - name: Generate German locale on Ubuntu
        if: runner.os == 'Linux'
        run: |
          sudo apt-get remove -y --purge man-db # avoid time-consuming trigger
          sudo apt-get update
          sudo apt-get install -y locales
          sudo locale-gen de_DE.UTF-8 # used by SerializerTest

      - name: Install ninja on Ubuntu
        if: runner.os == 'Linux'
        run: |
          sudo apt-get install -y ninja-build

      - name: Install lcov
        if: runner.os == 'Linux'
        run: |
          sudo apt-get install -y lcov

      - name: "CMake Configure for Unix with vcpkg dependencies"
        env:
          CFLAGS: "--coverage"
          CXXFLAGS: "--coverage"
          LDFLAGS: "--coverage"
        run: cmake -DUSE_THIRDPARTY_LIBRARIES=OFF "-DCMAKE_TOOLCHAIN_FILE=${VCPKG_INSTALLATION_ROOT}/scripts/buildsystems/vcpkg.cmake" -GNinja -S ${{ github.workspace }} -B ${{ github.workspace }}/_build

      - name: Build
        run: cmake --build ${{ github.workspace }}/_build

      - name: Test
        run: ctest -V -LE Benchmark
        working-directory: "${{ github.workspace }}/_build"

      - name: Run lcov
        run: lcov --capture --directory "${{ github.workspace }}/_build" --output-file coverage.info --no-external --directory "${{ github.workspace }}" --exclude '*/tests/*'

      - name: Coveralls
        uses: coverallsapp/github-action@master
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          path-to-lcov: coverage.info