pr.yml

# SPDX-FileCopyrightText: Copyright (c) 2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# This is the main workflow that runs on every PR and push to main
name: pr

defaults:
  run:
    shell: bash -euo pipefail {0}

on:
  push:
    branches:
      - main
      - "pull-request/[0-9]+"

# Only runs one instance of this workflow at a time for a given PR and cancels any in-progress runs when a new one starts.
concurrency:
  group: ${{ github.workflow }}-on-${{ github.event_name }}-from-${{ github.ref_name }}
  cancel-in-progress: true

jobs:
  compute-matrix:
    name: Compute matrix
    runs-on: ubuntu-latest
    outputs:
      DEVCONTAINER_VERSION: ${{steps.set-outputs.outputs.DEVCONTAINER_VERSION}}
      NVCC_FULL_MATRIX: ${{steps.set-outputs.outputs.NVCC_FULL_MATRIX}}
      CUDA_VERSIONS: ${{steps.set-outputs.outputs.CUDA_VERSIONS}}
      HOST_COMPILERS: ${{steps.set-outputs.outputs.HOST_COMPILERS}}
      PER_CUDA_COMPILER_MATRIX: ${{steps.set-outputs.outputs.PER_CUDA_COMPILER_MATRIX}}
      NVRTC_MATRIX: ${{steps.set-outputs.outputs.NVRTC_MATRIX}}
    steps:
      - name: Checkout repo
        uses: actions/checkout@v3
      - name: Compute matrix outputs
        id: set-outputs
        run: |
          .github/actions/compute-matrix/compute-matrix.sh ci/matrix.yaml pull_request

  nvrtc:
    name: NVRTC CUDA${{matrix.cuda}} C++${{matrix.std}}
    needs: compute-matrix
    if: ${{ !contains(github.event.head_commit.message, 'skip-tests') }}
    uses: ./.github/workflows/run-as-coder.yml
    strategy:
      fail-fast: false
      matrix:
        include: ${{ fromJSON(needs.compute-matrix.outputs.NVRTC_MATRIX) }}
    with:
      name: NVRTC CUDA${{matrix.cuda}} C++${{matrix.std}}
      runner: linux-${{matrix.cpu}}-gpu-v100-latest-1
      image: rapidsai/devcontainers:${{needs.compute-matrix.outputs.DEVCONTAINER_VERSION}}-cpp-gcc12-cuda${{matrix.cuda}}-${{matrix.os}}
      command: |
        ./ci/nvrtc_libcudacxx.sh g++ ${{matrix.std}} ${{matrix.gpu_build_archs}}

  thrust:
    name: Thrust CUDA${{ matrix.cuda_version }} ${{ matrix.compiler }}
    needs: compute-matrix
    uses: ./.github/workflows/dispatch-build-and-test.yml
    strategy:
      fail-fast: false
      matrix:
        cuda_version: ${{ fromJSON(needs.compute-matrix.outputs.CUDA_VERSIONS) }}
        compiler: ${{ fromJSON(needs.compute-matrix.outputs.HOST_COMPILERS) }}
    with:
      project_name: "thrust"
      per_cuda_compiler_matrix: ${{ toJSON(fromJSON(needs.compute-matrix.outputs.PER_CUDA_COMPILER_MATRIX)[ format('{0}-{1}', matrix.cuda_version, matrix.compiler) ]) }}
      devcontainer_version: ${{ needs.compute-matrix.outputs.DEVCONTAINER_VERSION }}
      is_windows: ${{ contains(matrix.compiler, 'cl') }}

  cub:
    name: CUB CUDA${{ matrix.cuda_version }} ${{ matrix.compiler }}
    needs: compute-matrix
    uses: ./.github/workflows/dispatch-build-and-test.yml
    strategy:
      fail-fast: false
      matrix:
        cuda_version: ${{ fromJSON(needs.compute-matrix.outputs.CUDA_VERSIONS) }}
        compiler: ${{ fromJSON(needs.compute-matrix.outputs.HOST_COMPILERS) }}
    with:
      project_name: "cub"
      per_cuda_compiler_matrix: ${{ toJSON(fromJSON(needs.compute-matrix.outputs.PER_CUDA_COMPILER_MATRIX)[ format('{0}-{1}', matrix.cuda_version, matrix.compiler) ]) }}
      devcontainer_version: ${{ needs.compute-matrix.outputs.DEVCONTAINER_VERSION }}
      is_windows: ${{ contains(matrix.compiler, 'cl') }}

  libcudacxx:
    name: libcudacxx CUDA${{ matrix.cuda_version }} ${{ matrix.compiler }}
    needs: compute-matrix
    uses: ./.github/workflows/dispatch-build-and-test.yml
    strategy:
      fail-fast: false
      matrix:
        cuda_version: ${{ fromJSON(needs.compute-matrix.outputs.CUDA_VERSIONS) }}
        compiler: ${{ fromJSON(needs.compute-matrix.outputs.HOST_COMPILERS) }}
    with:
      project_name: "libcudacxx"
      per_cuda_compiler_matrix: ${{ toJSON(fromJSON(needs.compute-matrix.outputs.PER_CUDA_COMPILER_MATRIX)[ format('{0}-{1}', matrix.cuda_version, matrix.compiler) ]) }}
      devcontainer_version: ${{ needs.compute-matrix.outputs.DEVCONTAINER_VERSION }}
      is_windows: ${{ contains(matrix.compiler, 'cl') }}

  examples:
    name: CCCL Examples
    needs: compute-matrix
    uses: ./.github/workflows/build-examples.yml
    strategy:
      fail-fast: false
      matrix:
        cuda_version: ${{ fromJSON(needs.compute-matrix.outputs.CUDA_VERSIONS) }}
        compiler: ${{ fromJSON(needs.compute-matrix.outputs.HOST_COMPILERS) }}
    with:
      per_cuda_compiler_matrix: ${{ toJSON(fromJSON(needs.compute-matrix.outputs.PER_CUDA_COMPILER_MATRIX)[ format('{0}-{1}', matrix.cuda_version, matrix.compiler) ]) }}
      devcontainer_version: ${{ needs.compute-matrix.outputs.DEVCONTAINER_VERSION }}
      is_windows: ${{ contains(matrix.compiler, 'cl') }}

  # This job is the final job that runs after all other jobs and is used for branch protection status checks.
  # See: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/about-status-checks
  ci:
    runs-on: ubuntu-latest
    name: CI
    needs:
      - cub
      - libcudacxx
      - nvrtc
      - thrust
      - examples
    steps:
      - run: echo "CI success"