name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

permissions:
  contents: read

jobs:
  lint:
    name: Lint
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v5

      - name: Check action.yml parses
        run: python3 -c "import yaml,sys; yaml.safe_load(open('action.yml'))"

      - name: Extract the action's shell body
        run: python3 test/extract-script.py > /tmp/action-script.sh

      - name: Shellcheck
        run: shellcheck --shell=bash --severity=style /tmp/action-script.sh

      - name: Shellcheck the test harness
        run: shellcheck --shell=bash --severity=warning test/run-tests.sh

      - name: Actionlint
        run: |
          bash <(curl -sSf https://raw.githubusercontent.com/rhysd/actionlint/main/scripts/download-actionlint.bash)
          ./actionlint -color

  test:
    name: Test
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, macos-latest]
    steps:
      - uses: actions/checkout@v5
      - name: Run the suite
        run: bash test/run-tests.sh