name: Python-package

on:

push:

branches:

- master

pull_request:

branches:

- master

# automatically cancel in-progress builds if another commit is pushed

concurrency:

group: ${{ github.workflow }}-${{ github.ref }}

cancel-in-progress: true

env:

CMAKE_BUILD_PARALLEL_LEVEL: 4

SKBUILD_STRICT_CONFIG: true

jobs:

test:

name: ${{ matrix.task }} ${{ matrix.method }} (${{ matrix.os }}, Python ${{ matrix.python_version }})

runs-on: ${{ matrix.os }}

timeout-minutes: 60

strategy:

fail-fast: false

matrix:

include:

- os: macos-13

task: regular

python_version: '3.10'

- os: macos-13

task: sdist

python_version: '3.11'

- os: macos-13

task: bdist

python_version: '3.8'

- os: macos-13

task: if-else

python_version: '3.9'

- os: macos-14

task: bdist

method: wheel

python_version: '3.10'

# We're currently skipping MPI jobs on macOS, see https://github.com/microsoft/LightGBM/pull/6425

# for further details.

# - os: macos-13

# task: mpi

# method: source

# python_version: '3.11'

# - os: macos-13

# task: mpi

# method: pip

# python_version: '3.12'

# - os: macos-13

# task: mpi

# method: wheel

# python_version: '3.9'

steps:

- name: Checkout repository

uses: actions/checkout@v4

with:

fetch-depth: 5

submodules: true

- name: Setup and run tests

shell: bash

run: |

export TASK="${{ matrix.task }}"

export METHOD="${{ matrix.method }}"

export PYTHON_VERSION="${{ matrix.python_version }}"

if [[ "${{ matrix.os }}" == "macos-14" ]]; then

# use clang when creating macOS release artifacts

export COMPILER="clang"

export OS_NAME="macos"

elif [[ "${{ matrix.os }}" == "macos-13" ]]; then

export COMPILER="gcc"

export OS_NAME="macos"

elif [[ "${{ matrix.os }}" == "ubuntu-latest" ]]; then

export COMPILER="clang"

export OS_NAME="linux"

fi

export BUILD_DIRECTORY="$GITHUB_WORKSPACE"

export CONDA=${HOME}/miniforge

export PATH=${CONDA}/bin:${PATH}

$GITHUB_WORKSPACE/.ci/setup.sh || exit 1

$GITHUB_WORKSPACE/.ci/test.sh || exit 1

- name: upload wheels

if: ${{ matrix.method == 'wheel' && matrix.os == 'macos-14' }}

uses: actions/upload-artifact@v4

with:

name: macosx-arm64-wheel

path: dist/*.whl

test-latest-versions:

name: Python - latest versions (ubuntu-latest)

runs-on: ubuntu-latest

timeout-minutes: 60

steps:

- name: Checkout repository

uses: actions/checkout@v4

with:

fetch-depth: 5

submodules: true

- name: Create wheel

run: |

docker run \

--rm \

--env CMAKE_BUILD_PARALLEL_LEVEL=${{ env.CMAKE_BUILD_PARALLEL_LEVEL }} \

-v $(pwd):/opt/lgb-build \

-w /opt/lgb-build \

lightgbm/vsts-agent:manylinux_2_28_x86_64 \

/bin/bash -c 'PATH=/opt/miniforge/bin:$PATH sh ./build-python.sh bdist_wheel --nomp'

- name: Test compatibility

run: |

docker run \

--rm \

-v $(pwd):/opt/lgb-build \

-w /opt/lgb-build \

python:3.11 \

/bin/bash ./.ci/test-python-latest.sh

test-oldest-versions:

name: Python - oldest supported versions (ubuntu-latest)

runs-on: ubuntu-latest

timeout-minutes: 60

steps:

- name: Checkout repository

uses: actions/checkout@v4

with:

fetch-depth: 5

submodules: true

- name: Create wheel

run: |

docker run \

--rm \

--env CMAKE_BUILD_PARALLEL_LEVEL=${{ env.CMAKE_BUILD_PARALLEL_LEVEL }} \

-v $(pwd):/opt/lgb-build \

-w /opt/lgb-build \

lightgbm/vsts-agent:manylinux_2_28_x86_64 \

/bin/bash -c 'PATH=/opt/miniforge/bin:$PATH sh ./build-python.sh bdist_wheel --nomp'

- name: Test compatibility

run: |

docker run \

--rm \

-v $(pwd):/opt/lgb-build \

-w /opt/lgb-build \

python:3.7 \

/bin/bash ./.ci/test-python-oldest.sh

all-python-package-jobs-successful:

if: always()

runs-on: ubuntu-latest

needs: [test, test-latest-versions, test-oldest-versions]

steps:

- name: Note that all tests succeeded

uses: re-actors/[email protected]

with:

jobs: ${{ toJSON(needs) }}