tfhe-rs/.github/workflows/make_release_cuda.yml

# Publish new release of tfhe-cuda-backend on crates.io.
name: Publish CUDA release

on:
  workflow_dispatch:
    inputs:
      dry_run:
        description: "Dry-run"
        type: boolean
        default: true
      push_to_crates:
        description: "Push to crate"
        type: boolean
        default: true

env:
  ACTION_RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
  SLACK_CHANNEL: ${{ secrets.SLACK_CHANNEL }}
  SLACK_ICON: https://pbs.twimg.com/profile_images/1274014582265298945/OjBKP9kn_400x400.png
  SLACK_USERNAME: ${{ secrets.BOT_USERNAME }}
  SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}

jobs:
  setup-instance:
    name: Setup instance (publish-cuda-release)
    runs-on: ubuntu-latest
    outputs:
      runner-name: ${{ steps.start-instance.outputs.label }}
    steps:
      - name: Start instance
        id: start-instance
        uses: zama-ai/slab-github-runner@1dced74825027fe3d481392163ed8fc56813fb5d
        with:
          mode: start
          github-token: ${{ secrets.SLAB_ACTION_TOKEN }}
          slab-url: ${{ secrets.SLAB_BASE_URL }}
          job-secret: ${{ secrets.JOB_SECRET }}
          backend: aws
          profile: gpu-test

  publish-cuda-release:
    name: Publish CUDA Release
    needs: setup-instance
    runs-on: ${{ needs.setup-instance.outputs.runner-name }}
    strategy:
      fail-fast: false
      # explicit include-based build matrix, of known valid options
      matrix:
        include:
          - os: ubuntu-22.04
            cuda: "12.2"
            gcc: 9
    env:
      CUDA_PATH: /usr/local/cuda-${{ matrix.cuda }}
    steps:
      - name: Checkout
        uses: actions/checkout@44c2b7a8a4ea60a981eaca3cf939b5f4305c123b
        with:
          fetch-depth: 0

      - name: Set up home
        run: |
          echo "HOME=/home/ubuntu" >> "${GITHUB_ENV}"

      - name: Install latest stable
        uses: dtolnay/rust-toolchain@d8352f6b1d2e870bc5716e7a6d9b65c4cc244a1a
        with:
          toolchain: stable

      - name: Export CUDA variables
        if: ${{ !cancelled() }}
        run: |
          echo "$CUDA_PATH/bin" >> "${GITHUB_PATH}"
          {
            echo "CUDA_PATH=$CUDA_PATH";
            echo "LD_LIBRARY_PATH=$CUDA_PATH/lib:$LD_LIBRARY_PATH";
            echo "CUDACXX=/usr/local/cuda-${{ matrix.cuda }}/bin/nvcc";
          } >> "${GITHUB_ENV}"

      # Specify the correct host compilers
      - name: Export gcc and g++ variables
        if: ${{ !cancelled() }}
        run: |
          {
            echo "CC=/usr/bin/gcc-${{ matrix.gcc }}";
            echo "CXX=/usr/bin/g++-${{ matrix.gcc }}";
            echo "CUDAHOSTCXX=/usr/bin/g++-${{ matrix.gcc }}";
            echo "HOME=/home/ubuntu";
          } >> "${GITHUB_ENV}"

      - name: Publish crate.io package
        if: ${{ inputs.push_to_crates }}
        env:
          CRATES_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
          DRY_RUN: ${{ inputs.dry_run && '--dry-run' || '' }}
        run: |
          cargo publish -p tfhe-cuda-backend --token ${{ env.CRATES_TOKEN }} ${{ env.DRY_RUN }}

      - name: Slack Notification
        if: ${{ failure() }}
        continue-on-error: true
        uses: rtCamp/action-slack-notify@4e5fb42d249be6a45a298f3c9543b111b02f7907
        env:
          SLACK_COLOR: ${{ job.status }}
          SLACK_MESSAGE: "tfhe-cuda-backend release finished with status: ${{ job.status }}. (${{ env.ACTION_RUN_URL }})"

  teardown-instance:
    name: Teardown instance (publish-release)
    if: ${{ always() && needs.setup-instance.result != 'skipped' }}
    needs: [ setup-instance, publish-cuda-release ]
    runs-on: ubuntu-latest
    steps:
      - name: Stop instance
        id: stop-instance
        uses: zama-ai/slab-github-runner@1dced74825027fe3d481392163ed8fc56813fb5d
        with:
          mode: stop
          github-token: ${{ secrets.SLAB_ACTION_TOKEN }}
          slab-url: ${{ secrets.SLAB_BASE_URL }}
          job-secret: ${{ secrets.JOB_SECRET }}
          label: ${{ needs.setup-instance.outputs.runner-name }}

      - name: Slack Notification
        if: ${{ failure() }}
        continue-on-error: true
        uses: rtCamp/action-slack-notify@4e5fb42d249be6a45a298f3c9543b111b02f7907
        env:
          SLACK_COLOR: ${{ job.status }}
          SLACK_MESSAGE: "Instance teardown (publish-cuda-release) finished with status: ${{ job.status }}. (${{ env.ACTION_RUN_URL }})"