name: Test Cygwin

on: [push, pull_request, workflow_dispatch]

jobs:
  build:
    runs-on: windows-latest
    strategy:
      fail-fast: false
      matrix:
        python-minor-version: [7, 8, 9]

    timeout-minutes: 40

    name: Python 3.${{ matrix.python-minor-version }}

    steps:
      - name: Fix line endings
        run: |
          git config --global core.autocrlf input

      - name: Checkout Pillow
        uses: actions/checkout@v3

      - name: Install Cygwin
        uses: cygwin/cygwin-install-action@v2
        with:
          platform: x86_64
          packages: >
            ImageMagick gcc-g++ ghostscript jpeg libfreetype-devel
            libimagequant-devel libjpeg-devel liblapack-devel
            liblcms2-devel libopenjp2-devel libraqm-devel
            libtiff-devel libwebp-devel libxcb-devel libxcb-xinerama0
            make netpbm perl
            python3${{ matrix.python-minor-version }}-cffi
            python3${{ matrix.python-minor-version }}-cython
            python3${{ matrix.python-minor-version }}-devel
            python3${{ matrix.python-minor-version }}-numpy
            python3${{ matrix.python-minor-version }}-sip
            python3${{ matrix.python-minor-version }}-tkinter
            qt5-devel-tools subversion xorg-server-extra zlib-devel

      - name: Add Lapack to PATH
        uses: egor-tensin/cleanup-path@v1
        with:
          dirs: 'C:\cygwin\bin;C:\cygwin\lib\lapack'
          
      - name: pip cache
        uses: actions/cache@v3
        with:
          path: 'C:\cygwin\home\runneradmin\.cache\pip'
          key: ${{ runner.os }}-cygwin-pip3.${{ matrix.python-minor-version }}-${{ hashFiles('.ci/install.sh') }}
          restore-keys: |
            ${{ runner.os }}-cygwin-pip3.${{ matrix.python-minor-version }}-
            
      - name: Ensure correct Python minor version is used in scripts
        shell: bash.exe -eo pipefail -o igncr "{0}"
        run: |
          /usr/sbin/alternatives --set python3 /usr/bin/python3.${{ matrix.python-minor-version }}
          /usr/sbin/alternatives --display python3
          /usr/sbin/alternatives --set python /usr/bin/python3.${{ matrix.python-minor-version }}
          /usr/sbin/alternatives --display python

      - name: Build system information
        run: |
          dash.exe -c "python3 .github/workflows/system-info.py"

      - name: Install dependencies
        run: |
          bash.exe .ci/install.sh

      - name: Install a different NumPy
        shell: dash.exe -l "{0}"
        run: |
          python3 -m pip install -U 'numpy!=1.21.*'
      - name: Build
        shell: bash.exe -eo pipefail -o igncr "{0}"
        run: |
          python3 -m coverage erase
          make clean
          CFLAGS="-coverage -Werror=implicit-function-declaration" python3 -m pip install -v --global-option="build_ext" .
          python3 selftest.py

      - name: Rebase dlls
        shell: bash.exe -eo pipefail -o igncr "{0}"
        run: |
          /usr/bin/rebase --database $(find /usr{,/local}/lib/python3.${{ matrix.python-minor-version }}/site-packages src/PIL ${HOME}/.local/lib/ /usr/lib/lapack /usr/bin -name \*.dll -o -name \*.exe)

      - name: Test
        run: |
          bash.exe xvfb-run -s '-screen 0 1024x768x24' .ci/test.sh

      - name: Prepare to upload errors
        if: failure()
        run: |
          dash.exe -c "mkdir -p Tests/errors"

      - name: Upload errors
        uses: actions/upload-artifact@v3
        if: failure()
        with:
          name: errors
          path: Tests/errors

      - name: After success
        run: |
          bash.exe .ci/after_success.sh

      - name: Upload coverage
        uses: codecov/codecov-action@v3
        with:
          file: ./coverage.xml
          flags: GHA_Cygwin
          name: Cygwin Python 3.${{ matrix.python-minor-version }}

  success:
    needs: build
    runs-on: ubuntu-latest
    name: Cygwin Test Successful
    steps:
      - name: Success
        run: echo Cygwin Test Successful