test-windows.yml

name: Test Windows

on:
  push:
    branches:
      - "**"
    paths-ignore:
      - ".github/workflows/docs.yml"
      - ".github/workflows/wheels*"
      - ".gitmodules"
      - "docs/**"
      - "wheels/**"
  pull_request:
    paths-ignore:
      - ".github/workflows/docs.yml"
      - ".github/workflows/wheels*"
      - ".gitmodules"
      - "docs/**"
      - "wheels/**"
  workflow_dispatch:

permissions:
  contents: read

env:
  COVERAGE_CORE: sysmon

jobs:
  build:
    runs-on: windows-latest
    strategy:
      fail-fast: false
      matrix:
        python-version: ["3.13"]

    timeout-minutes: 30

    name: Python ${{ matrix.python-version }}

    steps:
    - name: Checkout Pillow
      uses: actions/checkout@v4
      with:
        persist-credentials: false

    - name: Checkout cached dependencies
      uses: actions/checkout@v4
      with:
        persist-credentials: false
        repository: python-pillow/pillow-depends
        path: winbuild\depends

    # sets env: pythonLocation
    - name: Set up Python
      uses: actions/setup-python@v5
      with:
        python-version: ${{ matrix.python-version }}
        allow-prereleases: true
        cache: pip
        cache-dependency-path: ".github/workflows/test-windows.yml"

    - name: Print build system information
      run: python3 .github/workflows/system-info.py

    - name: Upgrade pip
      run: |
        python3 -m pip install --upgrade pip

    - name: Install dependencies
      id: install
      run: |
        choco install nasm --no-progress
        echo "C:\Program Files\NASM" >> $env:GITHUB_PATH

        # make cache key depend on VS version
        & "C:\Program Files (x86)\Microsoft Visual Studio\Installer\vswhere.exe" `
          | find """catalog_buildVersion""" `
          | ForEach-Object { $a = $_.split(" ")[1]; echo "vs=$a" >> $env:GITHUB_OUTPUT }
      shell: pwsh

    - name: Cache build
      id: build-cache
      uses: actions/cache@v4
      with:
        path: winbuild\build
        key:
          ${{ hashFiles('winbuild\build_prepare.py') }}-${{ hashFiles('.github\workflows\test-windows.yml') }}-${{ env.pythonLocation }}-${{ steps.install.outputs.vs }}

    - name: Prepare build
      if: steps.build-cache.outputs.cache-hit != 'true'
      run: |
        & python.exe winbuild\build_prepare.py -v
      shell: pwsh

    - name: Build dependencies / libjpeg-turbo
      if: steps.build-cache.outputs.cache-hit != 'true'
      run: "& winbuild\\build\\build_dep_libjpeg.cmd"

    - name: Build dependencies / zlib
      if: steps.build-cache.outputs.cache-hit != 'true'
      run: "& winbuild\\build\\build_dep_zlib.cmd"

    - name: Build dependencies / OpenJPEG
      run: "& winbuild\\build\\build_dep_openjpeg.cmd"

    # trim ~150MB for each job
    - name: Optimize build cache
      if: steps.build-cache.outputs.cache-hit != 'true'
      run: rmdir /S /Q winbuild\build\src
      shell: cmd

    - name: Build Pillow
      run: |
        $FLAGS="-C raqm=vendor -C fribidi=vendor"
        cmd /c "winbuild\build\build_env.cmd && $env:pythonLocation\python.exe -m pip install -v $FLAGS .[tests]"
        & $env:pythonLocation\python.exe selftest.py --installed
      shell: pwsh

    # skip PyPy for speed
    - name: Enable heap verification
      if: "!contains(matrix.python-version, 'pypy')"
      run: |
        & reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\python.exe" /v "GlobalFlag" /t REG_SZ /d "0x02000000" /f

    - name: Test Pillow
      run: |
        path %GITHUB_WORKSPACE%\winbuild\build\bin;%PATH%
        .ci\test.cmd
      shell: cmd