_run_android_tests.yml

name: android-tests

on:
  workflow_call:
    inputs:
      test-matrix:
        required: true
        type: string
        description: |
          A JSON description of what configs to run later on.

defaults:
  run:
    shell: bash -e -l {0}

jobs:
  filter:
    runs-on: [self-hosted, linux.large]
    outputs:
      test-matrix: ${{ steps.filter.outputs.test-matrix }}
      is-test-matrix-empty: ${{ steps.filter.outputs.is-test-matrix-empty }}
      keep-going: ${{ steps.filter.outputs.keep-going }}
    steps:
      - name: Checkout PyTorch
        uses: pytorch/pytorch/.github/actions/checkout-pytorch@main
        with:
          fetch-depth: 1
          submodules: false

      - name: Select all requested test configurations
        id: filter
        uses: ./.github/actions/filter-test-configs
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          test-matrix: ${{ inputs.test-matrix }}

  build-and-test:
    needs: filter
    # Don't run on forked repos.
    if: github.repository_owner == 'pytorch' && needs.filter.outputs.is-test-matrix-empty == 'False'
    strategy:
      matrix: ${{ fromJSON(needs.filter.outputs.test-matrix) }}
      fail-fast: false
    runs-on: ${{ matrix.runner }}
    steps:
      # [see note: pytorch repo ref]
      - name: Checkout PyTorch
        uses: pytorch/pytorch/.github/actions/checkout-pytorch@main

      - name: Setup miniconda
        uses: pytorch/test-infra/.github/actions/setup-miniconda@main
        with:
          python-version: 3.8
          environment-file: .github/requirements/conda-env-${{ runner.os }}-${{ runner.arch }}

      - name: Install NDK
        uses: nick-fields/retry@v2.8.2
        with:
          timeout_minutes: 5
          max_attempts: 3
          retry_wait_seconds: 90
          command: |
            # Install NDK 21 after GitHub update
            # https://github.com/actions/virtual-environments/issues/5595
            ANDROID_ROOT="/usr/local/lib/android"
            ANDROID_SDK_ROOT="${ANDROID_ROOT}/sdk"
            ANDROID_NDK="${ANDROID_SDK_ROOT}/ndk-bundle"
            ANDROID_NDK_VERSION="21.4.7075529"

            SDKMANAGER="${ANDROID_SDK_ROOT}/cmdline-tools/latest/bin/sdkmanager"
            # NB: This step downloads and installs NDK, thus it could be flaky.
            # However, SDKMANAGER doesn't return a non-zero status code when it
            # happens despite the fact that the corrupted file that it has isn't
            # a ZIP archive and couldn't be extracted
            echo "y" | ${SDKMANAGER} "ndk;${ANDROID_NDK_VERSION}"

            ln -sfn "${ANDROID_SDK_ROOT}/ndk/${ANDROID_NDK_VERSION}" "${ANDROID_NDK}"
            # So, we need to manually verify the existence of NDK afterward
            # and return a failure if the file isn't there
            if [ ! -f "${ANDROID_NDK}/build/cmake/android.toolchain.cmake" ]; then
              exit 1
            fi

            echo "ANDROID_SDK_ROOT=${ANDROID_SDK_ROOT}" >> "${GITHUB_ENV}"
            echo "ANDROID_NDK=${ANDROID_NDK}" >> "${GITHUB_ENV}"

      - name: Build PyTorch Android
        run: |
          echo "CMAKE_PREFIX_PATH=${CONDA_PREFIX:-"$(dirname "$(which conda)")/../"}" >> "${GITHUB_ENV}"
          ${CONDA_RUN} ./scripts/build_pytorch_android.sh x86

      - name: Run tests
        uses: reactivecircus/android-emulator-runner@v2
        with:
          api-level: 25
          script: ./android/run_tests.sh