patternia/.github/workflows/ci.yml at main · sentomk/patternia · GitHub

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name: patternia CI

on:
  push:
    branches: [main]
    paths-ignore:
      - "README.md"
      - "CONTRIBUTING.md"
      - "docs/**"
      - "LICENSE"
      - ".github/ISSUE_TEMPLATE/**"
  pull_request:
    branches: [main]
    # NOTE: no paths-ignore here on purpose. Branch protection
    # requires the build-and-test/coverage checks from this
    # workflow; skipping docs-only PRs would leave those checks
    # unreported and block the merge (see PR #45).

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build-and-test:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Configure CMake
        run: |
          cmake -S . -B build \
            -DCMAKE_BUILD_TYPE=Release \
            -DPTN_BUILD_TESTS=ON \
            -DPTN_BUILD_BENCHMARKS=OFF \
            -DPTN_SKIP_COMPILER_CHECK=ON

      - name: Build
        run: cmake --build build --parallel

      - name: Run Tests
        run: ctest --test-dir build --output-on-failure

      - name: Upload test log (on failure)
        if: failure()
        uses: actions/upload-artifact@v4
        with:
          name: test-log
          path: build/Testing/Temporary/LastTest.log

  coverage:
    needs: build-and-test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Install LLVM tools
        run: |
          wget -qO- https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
          sudo add-apt-repository -y 'deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-18 main'
          sudo apt-get update -qq
          sudo apt-get install -y -qq llvm-18 clang-18

      - name: Configure (Clang + source-based coverage)
        run: |
          cmake -S . -B build \
            -DCMAKE_BUILD_TYPE=Debug \
            -DCMAKE_C_COMPILER=clang-18 \
            -DCMAKE_CXX_COMPILER=clang++-18 \
            -DCMAKE_CXX_FLAGS="-fprofile-instr-generate -fcoverage-mapping -O0" \
            -DCMAKE_EXE_LINKER_FLAGS="-fprofile-instr-generate" \
            -DPTN_BUILD_TESTS=ON \
            -DPTN_BUILD_BENCHMARKS=OFF \
            -DPTN_SKIP_COMPILER_CHECK=ON

      - name: Build
        run: cmake --build build --parallel

      - name: Run Tests
        env:
          # Give each test process its own raw profile file.
          # %p = PID, %m = binary module name → avoids overwrites across
          # the 150+ gtest_discover_tests processes.
          LLVM_PROFILE_FILE: ${{ github.workspace }}/build/profile/%p-%m.profraw
        run: |
          mkdir -p build/profile
          ctest --test-dir build --output-on-failure

      - name: Capture coverage
        run: |
          # Merge raw profiles from all test processes.
          find build/profile -name '*.profraw' > profraw_list.txt
          echo "Found $(wc -l < profraw_list.txt) raw profiles"
          llvm-profdata-18 merge \
            -input-files profraw_list.txt \
            -output coverage.profdata \
            -sparse

          # Export lcov-format text for Codecov.
          llvm-cov-18 export \
            -format=lcov \
            -instr-profile=coverage.profdata \
            -ignore-filename-regex='(_deps|/usr/|tests/)' \
            build/tests/ptn_tests \
            > coverage.info

          # Summary for the CI log.
          llvm-cov-18 report \
            -instr-profile=coverage.profdata \
            -use-color \
            -ignore-filename-regex='(_deps|/usr/|tests/)' \
            build/tests/ptn_tests

      - name: Upload to Codecov
        uses: codecov/codecov-action@v5
        with:
          token: ${{ secrets.CODECOV_TOKEN }}
          files: coverage.info
          fail_ci_if_error: false