ci.yml

name: CI

on:
  # Run on pushes to `master` and on all pull requests.
  push:
    branches:
      - master
  pull_request:
  # Also run this workflow on day 15 of every month as the repo isn't that active.
  schedule:
    - cron: '0 0 15 * *'
  # Allow manually triggering the workflow.
  workflow_dispatch:

jobs:
  xmllint:
    name: 'Check XML'
    runs-on: ubuntu-latest

    env:
      XMLLINT_INDENT: '    '

    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Install PHP
        uses: shivammathur/setup-php@v2
        with:
          php-version: '7.4'
          coverage: none

      # Install dependencies to make sure the PHPCS XSD file is available.
      - name: Install dependencies
        run: composer install --no-dev --no-interaction --no-progress

      - name: Setup xmllint
        run: |
          sudo apt-get update
          sudo apt-get install --no-install-recommends -y libxml2-utils

      # Show violations inline in the file diff.
      # @link https://github.com/marketplace/actions/xmllint-problem-matcher
      - uses: korelstar/xmllint-problem-matcher@v1

      # Validate the xml file.
      # @link http://xmlsoft.org/xmllint.html
      - name: Validate against schema
        run: xmllint --noout --schema vendor/squizlabs/php_codesniffer/phpcs.xsd PHPCompatibilityWP/ruleset.xml

      # Check the code-style consistency of the xml file.
      - name: Check code style
        run: diff -B ./PHPCompatibilityWP/ruleset.xml <(xmllint --format "./PHPCompatibilityWP/ruleset.xml")

  test:
    needs: xmllint
    runs-on: ubuntu-latest

    strategy:
      matrix:
        php: ['5.4', 'latest']
        phpcompat: ['stable']
        experimental: [false]

        include:
          - php: '7.4'
            phpcompat: 'dev-develop as 9.99.99'
            experimental: true

    name: "Test: PHP ${{ matrix.php }} - PHPCompat ${{ matrix.phpcompat }}"
    continue-on-error: ${{ matrix.experimental }}

    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Install PHP
        uses: shivammathur/setup-php@v2
        with:
          php-version: ${{ matrix.php }}
          ini-values: error_reporting=E_ALL, display_errors=On
          coverage: none

      - name: Conditionally update PHPCompatibility to develop version
        if: ${{ matrix.phpcompat != 'stable' }}
        run: |
          composer config minimum-stability dev
          composer require --no-update phpcompatibility/php-compatibility:"${{ matrix.phpcompat }}" --no-interaction

      - name: Install dependencies
        run: composer install --no-interaction --no-progress

      # Validate the composer.json file.
      # @link https://getcomposer.org/doc/03-cli.md#validate
      - name: Validate Composer installation
        run: composer validate --no-check-all --strict

      # Make sure that known polyfills don't trigger any errors.
      - name: Test the ruleset
        run: vendor/bin/phpcs -ps ./Test/WPTest.php --standard=PHPCompatibilityWP --runtime-set testVersion 5.2-