name: Build with Clang/LLVM

on: pull_request_target

jobs:
  clang-build-cancel:
    runs-on: ubuntu-latest
    steps:
      - name: Cancel Previous Runs
        uses: styfle/cancel-workflow-action@0.6.0
        with:
          access_token: ${{ github.token }}
  clang-build:
    runs-on: ubuntu-latest
    needs: clang-build-cancel
    container:
      image: zephyrprojectrtos/ci:v0.18.3
      options: '--entrypoint /bin/bash'
    strategy:
      fail-fast: false
      matrix:
        subset: [1, 2, 3, 4, 5]
    env:
      ZEPHYR_SDK_INSTALL_DIR: /opt/toolchains/zephyr-sdk-0.13.0
      CLANG_ROOT_DIR: /usr/lib/llvm-12
      MATRIX_SIZE: 5
    steps:
      - name: Cancel Previous Runs
        uses: styfle/cancel-workflow-action@0.6.0
        with:
          access_token: ${{ github.token }}
      - name: Update PATH for west
        run: |
          echo "$HOME/.local/bin" >> $GITHUB_PATH

      - name: checkout
        uses: actions/checkout@v2
        with:
          ref: ${{ github.event.pull_request.head.sha }}
          fetch-depth: 0

      - name: west setup
        run: |
          west init -l . || true
          west update

      - name: Check Environment
        run: |
          cmake --version
          ${CLANG_ROOT_DIR}/bin/clang --version
          gcc --version
          ls -la

      - name: Run Tests with Twister
        run: |
          #source zephyr-env.sh
          export ZEPHYR_BASE=${PWD}
          export ZEPHYR_TOOLCHAIN_VARIANT=llvm
          ./scripts/twister --inline-logs -M -N -v -p native_posix --subset ${{matrix.subset}}/${MATRIX_SIZE} --retry-failed 3

      - name: Upload Unit Test Results
        if: always()
        uses: actions/upload-artifact@v2
        with:
          name: Unit Test Results (Subset ${{ matrix.subset }})
          path: twister-out/twister.xml

  publish-test-results:
    name: "Publish Unit Tests Results"
    needs: clang-build
    runs-on: ubuntu-20.04
      # the build-and-test job might be skipped, we don't need to run this job then
    if: success() || failure()

    steps:
      - name: Download Artifacts
        uses: actions/download-artifact@v2
        with:
          path: artifacts

      - name: Display structure of downloaded files
        run: ls -R

      - name: Publish Unit Test Results
        uses: EnricoMi/publish-unit-test-result-action@v1.12
        with:
          check_name: Unit Test Results
          github_token: ${{ secrets.GITHUB_TOKEN }}
          files: "**/twister.xml"
          comment_on_pr: false