name: Run tests with twister

on:
  push:
    branches:
    - v2.7-branch
  pull_request_target:
    branches:
    - v2.7-branch
  schedule:
    # Run at 00:00 on Saturday
    - cron: '20 0 * * 6'

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

jobs:
  twister-build-prep:
    runs-on: zephyr-runner-linux-x64-4xlarge
    container:
      image: zephyrprojectrtos/ci:v0.18.4
      options: '--entrypoint /bin/bash'
      volumes:
        - /repo-cache/zephyrproject:/github/cache/zephyrproject
    outputs:
      subset: ${{ steps.output-services.outputs.subset }}
      size: ${{ steps.output-services.outputs.size }}
    env:
      MATRIX_SIZE: 10
      PUSH_MATRIX_SIZE: 15
      DAILY_MATRIX_SIZE: 80
      ZEPHYR_SDK_INSTALL_DIR: /opt/toolchains/zephyr-sdk-0.13.1
      CLANG_ROOT_DIR: /usr/lib/llvm-12
      TESTS_PER_BUILDER: 700
      COMMIT_RANGE: ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }}
      BASE_REF: ${{ github.base_ref }}
    steps:
      - name: Clone cached Zephyr repository
        if: github.event_name == 'pull_request_target'
        continue-on-error: true
        run: |
          git clone --shared /github/cache/zephyrproject/zephyr .
          git remote set-url origin ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}

      - name: Checkout
        if: github.event_name == 'pull_request_target'
        uses: actions/checkout@v3
        with:
          ref: ${{ github.event.pull_request.head.sha }}
          fetch-depth: 0
          persist-credentials: false

      - name: Environment Setup
        if: github.event_name == 'pull_request_target'
        run: |
          pip3 install GitPython
          git config --global user.email "bot@zephyrproject.org"
          git config --global user.name "Zephyr Bot"
          git rebase origin/${BASE_REF}
          git log  --pretty=oneline | head -n 10
          west init -l . || true
          # no need for west update here

      - name: Generate Test Plan with Twister
        if: github.event_name == 'pull_request_target'
        id: test-plan
        run: |
          export ZEPHYR_BASE=${PWD}
          export ZEPHYR_TOOLCHAIN_VARIANT=zephyr
          # temporary until we have all PRs rebased on top of this commit.
          git log -n 500 --oneline | grep -q "run twister using github action" || (
            echo "Your branch is not up to date, you need to rebase on top of latest HEAD of main branch"
            exit 1
          )
          python3 ./scripts/ci/test_plan.py -c origin/${BASE_REF}.. --pull-request -t $TESTS_PER_BUILDER
          if [ -s .testplan ]; then
            cat .testplan >> $GITHUB_ENV
          else
            echo "TWISTER_NODES=${MATRIX_SIZE}" >> $GITHUB_ENV
          fi


          rm -f testplan.csv .testplan

      - name: Determine matrix size
        id: output-services
        run: |
          if [ "${{github.event_name}}" = "pull_request_target" ]; then
            if [ -n "${TWISTER_NODES}" ]; then
              subset="[$(seq -s',' 1 ${TWISTER_NODES})]"
            else
              subset="[$(seq -s',' 1 ${MATRIX_SIZE})]"
            fi
            size=${TWISTER_NODES}
          elif [ "${{github.event_name}}" = "push" ]; then
            subset="[$(seq -s',' 1 ${PUSH_MATRIX_SIZE})]"
            size=${MATRIX_SIZE}
          elif [ "${{github.event_name}}" = "schedule" && "${{github.repository}}" = "zephyrproject-rtos/zephyr" ]; then
            subset="[$(seq -s',' 1 ${DAILY_MATRIX_SIZE})]"
            size=${DAILY_MATRIX_SIZE}
          else
            size=0
          fi
          echo "subset=${subset}" >> $GITHUB_OUTPUT
          echo "size=${size}" >> $GITHUB_OUTPUT

  twister-build:
    runs-on: zephyr-runner-linux-x64-4xlarge
    needs: twister-build-prep
    if: needs.twister-build-prep.outputs.size != 0
    container:
      image: zephyrprojectrtos/ci:v0.18.4
      options: '--entrypoint /bin/bash'
      volumes:
        - /repo-cache/zephyrproject:/github/cache/zephyrproject
    strategy:
      fail-fast: false
      matrix:
        subset: ${{fromJSON(needs.twister-build-prep.outputs.subset)}}
    env:
      ZEPHYR_SDK_INSTALL_DIR: /opt/toolchains/zephyr-sdk-0.13.1
      CLANG_ROOT_DIR: /usr/lib/llvm-12
      TWISTER_COMMON: ' --inline-logs -v -N -M --retry-failed 3 '
      DAILY_OPTIONS: ' -M --build-only --all '
      PR_OPTIONS: ' --clobber-output --integration '
      PUSH_OPTIONS: ' --clobber-output -M '
      COMMIT_RANGE: ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }}
      BASE_REF: ${{ github.base_ref }}
    steps:
      - name: Clone cached Zephyr repository
        continue-on-error: true
        run: |
          git clone --shared /github/cache/zephyrproject/zephyr .
          git remote set-url origin ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}

      - name: Checkout
        uses: actions/checkout@v3
        with:
          ref: ${{ github.event.pull_request.head.sha }}
          fetch-depth: 0
          persist-credentials: false

      - name: Environment Setup
        run: |
          pip3 install GitPython
          if [ "${{github.event_name}}" = "pull_request_target" ]; then
            git config --global user.email "bot@zephyrproject.org"
            git config --global user.name "Zephyr Builder"
            git rebase origin/${BASE_REF}
            git log  --pretty=oneline | head -n 10
          fi
          echo "$HOME/.local/bin" >> $GITHUB_PATH

          west init -l . || true
          west config --global update.narrow true
          west update --path-cache /github/cache/zephyrproject 2>&1 1> west.update.log || west update --path-cache /github/cache/zephyrproject 2>&1 1> west.update.log || ( rm -rf ../modules && west update --path-cache /github/cache/zephyrproject)
          west forall -c 'git reset --hard HEAD'

      - name: Check Environment
        run: |
          cmake --version
          ${CLANG_ROOT_DIR}/bin/clang --version
          gcc --version
          ls -la
          echo "github.ref: ${{ github.ref }}"
          echo "github.base_ref: ${{ github.base_ref }}"
          echo "github.ref_name: ${{ github.ref_name }}"

      - name: Prepare ccache timestamp/data
        id: ccache_cache_timestamp
        shell: cmake -P {0}
        run: |
          string(TIMESTAMP current_date "%Y-%m-%d-%H;%M;%S" UTC)
          string(REPLACE "/" "_" repo ${{github.repository}})
          string(REPLACE "-" "_" repo2 ${repo})
          file(APPEND $ENV{GITHUB_OUTPUT} "repo=${repo2}\n")

      - name: use cache
        id: cache-ccache
        uses: nashif/action-s3-cache@master
        with:
          key: ${{ steps.ccache_cache_timestamp.outputs.repo }}-${{ github.ref_name }}-${{github.event_name}}-${{ matrix.subset }}-ccache
          path: /github/home/.ccache
          aws-s3-bucket: ccache.zephyrproject.org
          aws-access-key-id: ${{ vars.AWS_CCACHE_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.AWS_CCACHE_SECRET_ACCESS_KEY }}
          aws-region: us-east-2

      - name: ccache stats initial
        run: |
          test -d github/home/.ccache && rm -rf /github/home/.ccache && mv github/home/.ccache /github/home/.ccache
          ccache -M 10G -s

      - if: github.event_name == 'push'
        name: Run Tests with Twister (Push)
        run: |
          export ZEPHYR_BASE=${PWD}
          export ZEPHYR_TOOLCHAIN_VARIANT=zephyr
          ./scripts/twister --subset ${{matrix.subset}}/${{ strategy.job-total }} ${TWISTER_COMMON} ${PUSH_OPTIONS}

      - if: github.event_name == 'pull_request_target'
        name: Run Tests with Twister (Pull Request)
        run: |
          rm -f testplan.csv
          export ZEPHYR_BASE=${PWD}
          export ZEPHYR_TOOLCHAIN_VARIANT=zephyr
          python3 ./scripts/ci/test_plan.py -c origin/${BASE_REF}.. --pull-request
          ./scripts/twister --subset ${{matrix.subset}}/${{ strategy.job-total }} --load-tests testplan.csv ${TWISTER_COMMON} ${PR_OPTIONS}

      - if: github.event_name == 'schedule'
        name: Run Tests with Twister (Daily)
        run: |
          export ZEPHYR_BASE=${PWD}
          export ZEPHYR_TOOLCHAIN_VARIANT=zephyr
          ./scripts/twister --subset ${{matrix.subset}}/${{ strategy.job-total }} ${TWISTER_COMMON} ${DAILY_OPTIONS}

      - name: ccache stats post
        run: |
          ccache -s

      - name: Upload Unit Test Results
        if: always()
        uses: actions/upload-artifact@v3
        with:
          name: Unit Test Results (Subset ${{ matrix.subset }})
          if-no-files-found: ignore
          path: |
            twister-out/twister.xml
            testplan.csv

  twister-test-results:
    name: "Publish Unit Tests Results"
    needs: twister-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: Publish Unit Test Results
        uses: EnricoMi/publish-unit-test-result-action@v1
        with:
          check_name: Unit Test Results
          github_token: ${{ secrets.GITHUB_TOKEN }}
          files: "**/twister.xml"
          comment_mode: off