# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt

name: "Tests"

on:
  push:
    branches:
      - master
      - nedbat/*
  pull_request:
  workflow_dispatch:

defaults:
  run:
    shell: bash

env:
  PIP_DISABLE_PIP_VERSION_CHECK: 1
  COVERAGE_IGOR_VERBOSE: 1
  FORCE_COLOR: 1    # Get colored pytest output

permissions:
  contents: read

concurrency:
  group: "${{ github.workflow }}-${{ github.ref }}"
  cancel-in-progress: true

jobs:
  tests:
    name: "${{ matrix.python-version }} on ${{ matrix.os }}"
    runs-on: "${{ matrix.os }}-${{ matrix.os-version || 'latest' }}"
    # Don't run tests if the branch name includes "-notests"
    if: "!contains(github.ref, '-notests')"
    strategy:
      matrix:
        os:
          - ubuntu
          - macos
          - windows
        python-version:
          # When changing this list, be sure to check the [gh] list in
          # tox.ini so that tox will run properly. PYVERSIONS
          # Available versions:
          # https://github.com/actions/python-versions/blob/main/versions-manifest.json
          # https://github.com/actions/setup-python/blob/main/docs/advanced-usage.md#available-versions-of-python-and-pypy
          - "3.8"
          - "3.9"
          - "3.10"
          - "3.11"
          - "3.12"
          - "3.13"
          - "pypy-3.8"
          - "pypy-3.9"
          - "pypy-3.10"
        exclude:
          # Windows pypy 3.9 and 3.10 get stuck with PyPy 7.3.15.  I hope to
          # unstick them, but I don't want that to block all other progress, so
          # skip them for now. These excludes can be removed once GitHub uses
          # PyPy 7.3.16 on Windows.  https://github.com/pypy/pypy/issues/4876
          - os: windows
            python-version: "pypy-3.9"
          - os: windows
            python-version: "pypy-3.10"
        # If we need to tweak the os version we can do it with an include like
        # this:
        #  include:
        #    - python-version: "3.8"
        #      os: "macos"
        #      os-version: "13"

      fail-fast: false

    steps:
      - name: "Check out the repo"
        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7

      - name: "Set up Python"
        uses: actions/setup-python@39cd14951b08e74b54015e9e001cdefcf80e669f # v5.1.1
        with:
          python-version: "${{ matrix.python-version }}"
          allow-prereleases: true
          # At a certain point, installing dependencies failed on pypy 3.9 and
          # 3.10 on Windows.  Commenting out the cache here fixed it.  Someday
          # try using the cache again.
          #cache: pip
          #cache-dependency-path: 'requirements/*.pip'

      - name: "Show environment"
        run: |
          set -xe
          python -VV
          python -m site
          # For extreme debugging:
          # python -c "import urllib.request as r; exec(r.urlopen('https://bit.ly/pydoctor').read())"
          env | sort

      - name: "Install dependencies"
        run: |
          set -xe
          python -m pip install -r requirements/tox.pip

      - name: "Run tox for ${{ matrix.python-version }}"
        run: |
          python -m tox -- -rfsEX

      - name: "Retry tox for ${{ matrix.python-version }}"
        if: failure()
        run: |
          # `exit 1` makes sure that the job remains red with flaky runs
          python -m tox -- -rfsEX --lf -vvvvv && exit 1

  # This job aggregates test results. It's the required check for branch protection.
  # https://github.com/marketplace/actions/alls-green#why
  # https://github.com/orgs/community/discussions/33579
  success:
    name: Tests successful
    # The tests didn't run if the branch name includes "-notests"
    if: "!contains(github.ref, '-notests')"
    needs:
      - tests
    runs-on: ubuntu-latest
    steps:
      - name: Decide whether the needed jobs succeeded or failed
        uses: re-actors/alls-green@05ac9388f0aebcb5727afa17fcccfecd6f8ec5fe # v1.2.2
        with:
          jobs: ${{ toJSON(needs) }}
