linux.yml

name: Linux tests

# This file is meant for testing across supported Python versions, build types
# and interpreters (PyPy, python-dbg, a pre-release Python in summer time),
# build-via-sdist, run benchmarks, measure code coverage, and other build
# options.

on:
  push:
    branches:
      # coverage comparison in the "full" step needs to run on main after merges
      - main
      - fix-strtold_l-check
  pull_request:
    branches:
      - main
      - maintenance/**

defaults:
  run:
    shell: bash

concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

permissions:
  contents: read # to fetch code (actions/checkout)

jobs:
  lint:
    runs-on: ubuntu-latest
    continue-on-error: true
    steps:
    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
      with:
        submodules: recursive
        fetch-depth: 0
    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # v4.7.1
      with:
        python-version: '3.9'
    - name: Install linter requirements
      run:
        python -m pip install -r linter_requirements.txt
    - name: Run linter on PR diff
      run:
        python tools/linter.py --branch origin/${{ github.base_ref }}

  smoke_test:
    runs-on: ubuntu-latest
    env:
      MESON_ARGS: "-Dallow-noblas=true -Dcpu-baseline=none -Dcpu-dispatch=none"
    steps:
    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
      with:
        submodules: recursive
        fetch-depth: 0
    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # v4.7.1
      with:
        python-version: '3.9'
    - uses: ./.github/meson_actions

  pypy:
    needs: [smoke_test]
    runs-on: ubuntu-latest
    if: github.event_name != 'push'
    steps:
    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
      with:
        submodules: recursive
        fetch-depth: 0
    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # v4.7.1
      with:
        python-version: 'pypy3.9-v7.3.12'
    - name: Setup using scipy-openblas
      run: |
        python -m pip install scipy-openblas32 spin
        spin config-openblas --with-scipy-openblas=32
    - uses: ./.github/meson_actions

  debug:
    needs: [smoke_test]
    runs-on: ubuntu-latest
    if: github.event_name != 'push'
    steps:
    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
      with:
        submodules: recursive
        fetch-depth: 0
    - name: Install debug Python
      run: |
        sudo apt-get update
        sudo apt-get install python3-dbg ninja-build
    - name: Build NumPy and install into venv
      run: |
        python3-dbg -m venv venv
        source venv/bin/activate
        pip install -U pip
        pip install . -v -Csetup-args=-Dbuildtype=debug -Csetup-args=-Dallow-noblas=true
    - name: Install test dependencies
      run: |
        source venv/bin/activate
        pip install -r test_requirements.txt
    - name: Run test suite
      run: |
        source venv/bin/activate
        cd tools
        pytest --pyargs numpy -m "not slow"

  full:
    # Build a wheel, install it, then run the full test suite with code coverage
    needs: [smoke_test]
    runs-on: ubuntu-22.04
    steps:
    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
      with:
        submodules: recursive
        fetch-depth: 0
    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # v4.7.1
      with:
        python-version: '3.9'
    - name: Install build and test dependencies from PyPI
      run: |
        pip install -r build_requirements.txt
        pip install -r test_requirements.txt
    - name: Install gfortran and setup OpenBLAS (MacPython build)
      run: |
        set -xe
        sudo apt update
        sudo apt install gfortran libgfortran5
        pip install scipy-openblas32
        spin config-openblas --with-scipy-openblas=32
    - name: Build a wheel
      env:
        PKG_CONFIG_PATH: ${{ github.workspace }}/.openblas
      run: |
        python -m build --wheel --no-isolation --skip-dependency-check
        pip install dist/numpy*.whl
    - name: Run full test suite
      run: |
        cd tools
        pytest --pyargs numpy --cov-report=html:build/coverage
        # TODO: gcov

  benchmark:
    needs: [smoke_test]
    runs-on: ubuntu-latest
    if: github.event_name != 'push'
    steps:
    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
      with:
        submodules: recursive
        fetch-depth: 0
    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # v4.7.1
      with:
        python-version: '3.9'
    - name: Install build and benchmarking dependencies
      run: |
        sudo apt-get update
        sudo apt-get install libopenblas-dev ninja-build
        pip install spin cython asv virtualenv packaging
    - name: Install NumPy
      run: |
        spin build -- -Dcpu-dispatch=none
    # Ensure to keep the below steps as single-line bash commands (it's a
    # workaround for asv#1333, and it may have side-effects on multi-line commands)
    - name: Appease asv's need for machine info
      shell: 'script -q -e -c "bash --noprofile --norc -eo pipefail {0}"'
      run: |
        asv machine --yes --config benchmarks/asv.conf.json
    - name: Run benchmarks
      shell: 'script -q -e -c "bash --noprofile --norc -eo pipefail {0}"'
      run: |
        spin bench --quick

  sdist:
    needs: [smoke_test]
    runs-on: ubuntu-latest
    if: github.event_name != 'push'
    steps:
    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
      with:
        submodules: recursive
        fetch-depth: 0
    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # v4.7.1
      with:
        python-version: '3.11'
    - name: Install gfortran and setup OpenBLAS (MacPython build)
      run: |
        set -xe
        sudo apt update
        sudo apt install gfortran libgfortran5
        target=$(python tools/openblas_support.py)
        sudo cp -r $target/lib/* /usr/lib
        sudo cp $target/include/* /usr/include
    - name: Build a wheel via an sdist
      run: |
        pip install build
        python -m build
        pip install dist/numpy*.whl
    - name: Install test dependencies
      run: |
        pip install -r test_requirements.txt
        pip install ninja
    - name: Run test suite
      run: |
        cd tools
        pytest --pyargs numpy -m "not slow"

  custom_checks:
    needs: [smoke_test]
    runs-on: ubuntu-latest
    if: github.event_name != 'push'
    steps:
    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
      with:
        submodules: recursive
        fetch-depth: 0
    - uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # v4.7.1
      with:
        python-version: '3.11'
    - name: Install build and test dependencies from PyPI
      run: |
        pip install -r build_requirements.txt
        pip install -r test_requirements.txt
        pip install vulture
    - name: Build and install NumPy
      run: |
        # Install using the fastests way to build (no BLAS, no SIMD)
        spin build -j2 -- -Dallow-noblas=true -Dcpu-baseline=none -Dcpu-dispatch=none
    - name: Check build-internal dependencies
      run: |
        ninja -C build -t missingdeps
    - name: Check installed test and stub files
      run: |
        python tools/check_installed_files.py $(find ./build-install -path '*/site-packages/numpy')
    - name: Check for unreachable code paths in Python modules
      run: |
        # Need the explicit `bash -c` here because `grep` returns exit code 1 for no matches
        bash -c "! vulture . --min-confidence 100 --exclude doc/,numpy/distutils/,vendored-meson/ | grep 'unreachable'"