# This action generates wheel files for python 2 and 3.
name: build wheels

on:
  push:
    branches:
      - 'master'

jobs:
  build:

    # There were errors on Mac that would lead to non-stop printing of
    # error messages forever instead of the job crashing. To prevent this,
    # a timeout is placed here (default value is otherwise 360min).
    timeout-minutes: 30

    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
        # see supported versions at
        # https://raw.githubusercontent.com/actions/python-versions/master/versions-manifest.json
        python-version: [2.7, 3.5, 3.6, 3.7, 3.8]
        exclude:
          - os: windows-latest
            python-version: 2.7  # causes a Shapely install error
    env:
      OS: ${{ matrix.os }}
      PYTHON: ${{ matrix.python-version }}
    steps:
    - uses: actions/checkout@v2

    # ----------------
    # Install python and base packages
    # ----------------
    - name: Set up python ${{ matrix.python-version }} on ${{ runner.os }}
      uses: actions/setup-python@v2
      with:
        python-version: ${{ matrix.python-version }}

    - name: Display python version
      run: |
        python -c "import sys; print(sys.version)"

    - name: Display system information
      run : |
        python -c "import sys; print(sys.maxsize);"
        python -c "import platform; print(platform.uname());"
        python -c "import platform; print(platform.platform());"
        python -c "import platform; print(platform.architecture());"
        python -c "import platform; print(platform.processor());"
        python -c "import platform; print(platform.python_compiler());"

    - name: Upgrade basic packages
      run: |
        python -m pip install --upgrade pip setuptools wheel

    # ----------------
    # Set up pip cache
    # ----------------
    - name: Get Date
      id: get-date
      run: |
        echo "::set-output name=date::$(/bin/date -u "+%Y%m%d")"
      shell: bash

    - uses: actions/cache@v1
      if: startsWith(runner.os, 'Linux')
      with:
        path: ~/.cache/pip
        key: ${{ runner.os }}-pip-${{ steps.get-date.outputs.date }}-${{ hashFiles('**/requirements.txt') }}
        restore-keys: |
          ${{ runner.os }}-pip-

    - uses: actions/cache@v1
      if: startsWith(runner.os, 'macOS')
      with:
        path: ~/Library/Caches/pip
        key: ${{ runner.os }}-pip-${{ steps.get-date.outputs.date }}-${{ hashFiles('**/requirements.txt') }}
        restore-keys: |
          ${{ runner.os }}-pip-

    - uses: actions/cache@v1
      if: startsWith(runner.os, 'Windows')
      with:
        path: ~\AppData\Local\pip\Cache
        key: ${{ runner.os }}-pip-${{ steps.get-date.outputs.date }}-${{ hashFiles('**/requirements.txt') }}
        restore-keys: |
          ${{ runner.os }}-pip-

    # ----------------
    # Install dependencies
    # ----------------
    - name: Install dependencies
      run: |
        pip install -r requirements.txt

    # ----------------
    # Generate wheels
    # ----------------
    - name: Generate wheels
      run: |
        python setup.py sdist
        python setup.py bdist_wheel

    # ----------------
    # Upload artifacts
    # ----------------
    - uses: actions/upload-artifact@v2
      with:
        name: ${{ runner.os }}-py${{ matrix.python-version }}-dist
        path: dist/