ci.yml

name: CI

on:
  push:
    branches:
      - master
  pull_request:

jobs:
  test:
    name: PHP ${{ matrix.php }}${{ matrix.prefer_lowest == '--prefer-lowest' && ' (lowest)' || '' }}
    runs-on: ubuntu-latest

    strategy:
      fail-fast: false
      matrix:
        php: ['7.4', '8.0', '8.1', '8.2', '8.3', '8.4', '8.5']
        prefer_lowest: ['']
        # --prefer-lowest only on PHP 7.4: the floor of every dependency
        # lives at 7.4 (mockery 1.6, phpunit 9.6, console-diff-renderer 1.0),
        # so a "lowest" run on PHP 8.x would install deps that don't actually
        # support PHP 8 at runtime.
        include:
          - php: '7.4'
            prefer_lowest: '--prefer-lowest'

    steps:
      - name: Checkout
        uses: actions/checkout@v6

      - name: Setup PHP
        uses: shivammathur/setup-php@v2
        with:
          php-version: ${{ matrix.php }}
          coverage: none
          tools: composer:v2

      - name: Get Composer cache directory
        id: composer-cache
        run: echo "dir=$(composer config cache-files-dir)" >> "$GITHUB_OUTPUT"

      - name: Cache Composer packages
        uses: actions/cache@v5
        with:
          path: ${{ steps.composer-cache.outputs.dir }}
          key: composer-${{ matrix.php }}-${{ matrix.prefer_lowest }}-${{ hashFiles('composer.json') }}
          restore-keys: |
            composer-${{ matrix.php }}-

      - name: Pin Composer platform to the runtime PHP version
        run: composer config platform.php "$(php -r 'echo PHP_VERSION;')"

      - name: Install dependencies
        run: composer update --no-interaction --prefer-dist ${{ matrix.prefer_lowest }}

      - name: Lint (phpcs)
        if: matrix.prefer_lowest == ''
        run: vendor/bin/phpcs --standard=./phpcs.xml.dist -p --warning-severity=0 src/ tests/

      - name: Unit tests
        run: vendor/bin/phpunit