name: Primer

on:
  push:
    paths-ignore:
      - "docs/**"
      - "*.md"

  pull_request:
    paths-ignore:
      - "docs/**"
      - "*.md"

jobs:
  build:
    # We want to run on external PRs, but not on our own internal PRs as they'll be run
    # by the push to the branch. Without this if check, checks are duplicated since
    # internal PRs match both the push and pull_request events.
    if:
      github.event_name == 'push' || github.event.pull_request.head.repo.full_name !=
      github.repository

    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10"]
        os: [ubuntu-latest, windows-latest]

    steps:
      - uses: actions/checkout@v2

      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v2
        with:
          python-version: ${{ matrix.python-version }}

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          python -m pip install -e ".[d,jupyter]"

      - name: Primer run
        env:
          pythonioencoding: utf-8
        run: |
          black-primer