linux-cuda-gnu.yml

name: linux-cuda

on:
  workflow_dispatch:
  pull_request:
    types: [ labeled, synchronize, opened, reopened ]
    paths-ignore:
      - 'assets/**'
      - '*.md'
      - '**/*.md'
      - 'LICENSE*'
      - 'examples/**'
      - 'nerves/**'
      - 'gleam_src/**'
      - 'Makefile.win'
      - 'cc_toolchain/**'
      - 'checksum.exs'
      - '.github/FUNDING.yml'
      - '.github/workflows/nerves-*'
      - '.github/workflows/macos-*'
      - '.github/workflows/windows-*'
      - '.github/workflows/test-*.yml'
      - '.github/workflows/linux-x86_64.yml'
      - '.github/workflows/linux-arm64.yml'
      - '.github/workflows/linux-armv7.yml'
      - '.github/workflows/linux-ppc64le.yml'
      - '.github/workflows/linux-s390x.yml'
      - '.github/workflows/linux-precompile-*.yml'
  push:
    branches:
      - main
    paths-ignore:
      - 'assets/**'
      - '*.md'
      - '**/*.md'
      - 'LICENSE*'
      - 'examples/**'
      - 'nerves/**'
      - 'Makefile.win'
      - 'cc_toolchain/**'
      - 'checksum.exs'
      - '.github/FUNDING.yml'
      - '.github/workflows/nerves-*'
      - '.github/workflows/macos-*'
      - '.github/workflows/windows-*'
      - '.github/workflows/test-*.yml'
      - '.github/workflows/linux-x86_64.yml'
      - '.github/workflows/linux-arm64.yml'
      - '.github/workflows/linux-armv7.yml'
      - '.github/workflows/linux-ppc64le.yml'
      - '.github/workflows/linux-s390x.yml'
      - '.github/workflows/linux-precompile-*.yml'

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

jobs:
  x86_64-gnu-cuda:
    if: ${{ github.event_name == 'workflow_dispatch' || contains(github.event.pull_request.labels.*.name, 'cuda') }}
    runs-on: ubuntu-20.04
    strategy:
      fail-fast: false
      matrix:
        include:
          - container: nvidia/cuda:11.8.0-cudnn8-devel-ubuntu20.04
            cuda_ver: "11.8.0"
            cuda_id: "118"
    container: ${{ matrix.container }}
    env:
      # container env vars
      # ref link: https://github.com/elixir-nx/xla/blob/main/.github/workflows/release.yml
      ImageOS: ubuntu20
      LANG: en_US.UTF-8
      LANGUAGE: en_US:en
      LC_ALL: en_US.UTF-8
      DEBIAN_FRONTEND: noninteractive
      # evision related env vars
      MIX_ENV: test
      OPENCV_VER: "4.10.0"
      OTP_VERSION: "25.3"
      ELIXIR_VERSION: "1.16.1"
      EVISION_PREFER_PRECOMPILED: "false"
      EVISION_ENABLE_CUDA: "true"
      PKG_CONFIG_PATH: "/usr/lib/x86_64-linux-gnu/pkgconfig"
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install system dependencies
        run: |
          apt-get update
          apt-get install -y build-essential automake autoconf pkg-config bc m4 unzip zip curl git libssl-dev gzip python3 ca-certificates \
            libavcodec-dev libavformat-dev libavutil-dev libswscale-dev libavresample-dev libeigen3-dev ffmpeg locales curl wget cmake
          echo "${LANG} UTF-8" >> /etc/locale.gen
          locale-gen
          update-locale LANG=${LANG}

      - uses: erlef/setup-beam@v1
        with:
          otp-version: ${{ env.OTP_VERSION }}
          elixir-version: ${{ env.ELIXIR_VERSION }}

      - name: Cache mix packages
        id: cache-mix-deps
        uses: actions/cache@v4
        with:
          key: deps-${{ hashFiles('mix.lock') }}-${{ env.OTP_VERSION }}-${{ env.ELIXIR_VERSION }}
          path: |
            ./deps

      - name: Get mix deps
        if: steps.cache-mix-deps.outputs.cache-hit != 'true'
        run: |
          mix deps.get

      - name: Cache OpenCV
        id: cache-opencv
        uses: actions/cache@v4
        with:
          key: opencv-with-contrib-${{ env.OPENCV_VER }}
          path: |
            ./3rd_party

      - name: Download OpenCV
        if: steps.cache-opencv.outputs.cache-hit != 'true'
        run: |
          bash scripts/download_opencv.sh ${OPENCV_VER} 3rd_party/cache 3rd_party/opencv/
          bash scripts/download_opencv_contrib.sh ${OPENCV_VER} 3rd_party/cache 3rd_party/opencv/

      - name: Cache compiled OpenCV
        id: cache-mix-compile_opencv
        uses: actions/cache@v4
        with:
          key: compiled-opencv-${{ env.OPENCV_VER }}-cuda${{ matrix.cuda_ver }}-x86_64-linux-gnu-${{ hashFiles('Makefile') }}
          path: |
            ./_build/${{ env.MIX_ENV }}/lib/evision
            ./c_src/headers.txt
            ./c_src/configuration.private.hpp

      - name: Compile OpenCV
        if: steps.cache-mix-compile_opencv.outputs.cache-hit != 'true'
        run: |
          mix compile_opencv

      - name: Mix Compile
        run: |
          rm -f _build/${{ env.MIX_ENV }}/lib/evision/priv/evision.so
          ls -la ./c_src
          mix compile
          ls -la ./lib/generated

      - name: Cache testdata
        id: cache-mix-testdata
        uses: actions/cache@v4
        with:
          key: testdata-${{ hashFiles('test/downloading_list.txt') }}
          path: |
            ./test/testdata

      - name: Mix Test
        run: |
          mix test --include require_downloading --include require_ffmpeg