Some GitHub Actions workflows for continuous integration and nightly builds with PHP

ci.yml

name: Continuous integration

on:
  push:
    paths-ignore:
      - '**.md'
      - '.github/**'
  pull_request:
    paths-ignore:
      - '**.md'
      - '.github/**'

jobs:
  test:
    name: 'Test (PHP: ${{ matrix.php-versions }}, OS: ${{ matrix.operating-systems }}, dependencies: ${{ matrix.dependencies }})'
    runs-on: ${{ matrix.operating-systems }}

    # STRATEGY
    strategy:
      matrix:
        operating-systems: [ubuntu-latest, windows-latest, macos-latest]
        php-versions: ['7.3', '7.4']
        dependencies: ['lowest', 'highest']

    steps:
      # SETUP
      - name: Checkout
        uses: actions/checkout@v2
      - name: Setup PHP
        uses: shivammathur/setup-php@v1
        with:
          php-version: ${{ matrix.php-versions }}
          coverage: xdebug
          extensions: dom, mbstring
      - name: Get Composer cache directory
        id: composer-cache-directory
        run: echo "::set-output name=dir::$(composer config cache-files-dir)"
      - name: Composer cache
        uses: actions/cache@v1
        with:
          path: ${{ steps.composer-cache-directory.outputs.dir }}
          key: ${{ matrix.operating-systems }}_php${{ matrix.php-versions }}_dependencies-${{ matrix.dependencies }}_composer_${{ hashFiles('**/composer.lock') }}
          restore-keys: |
            ${{ matrix.operating-systems }}_php${{ matrix.php-versions }}_dependencies-${{ matrix.dependencies }}_composer_
            ${{ matrix.operating-systems }}_php${{ matrix.php-versions }}_dependencies-${{ matrix.dependencies }}_
        id: composer-cache
      - name: Install lowest dependencies
        if: matrix.dependencies == 'lowest'
        run: composer update --prefer-lowest --no-interaction --no-progress --no-suggest --prefer-dist --optimize-autoloader
      - name: Install highest dependencies
        if: matrix.dependencies == 'highest'
        run: composer update --prefer-stable --no-interaction --no-progress --no-suggest --prefer-dist --optimize-autoloader

      # TESTS
      - name: Run tests and coverage
        run: ./vendor/bin/phpunit
      - name: Install lowest Codacy coverage dependency
        run: composer require codacy/coverage --dev --prefer-dist --no-progress --no-suggest --prefer-lowest --optimize-autoloader
        if: matrix.dependencies == 'lowest'
      - name: Install highest Codacy coverage dependency
        run: composer require codacy/coverage --dev --prefer-dist --no-progress --no-suggest --prefer-stable --optimize-autoloader
        if: matrix.dependencies == 'highest'
      - name: Send coverage
        env:
          CODACY_PROJECT_TOKEN: ${{ secrets.CODACY_PROJECT_TOKEN }}
        run: ./vendor/bin/codacycoverage phpunit coverage
      - name: Upload coverage results
        uses: actions/upload-artifact@v1
        with:
          name: 'Coverage results (PHP ${{ matrix.php-versions }}, OS ${{ matrix.operating-systems }}, dependencies ${{ matrix.dependencies }})'
          path: ./coverage-html

nightly.yml

name: Nighlty build

on:
  schedule:
    - cron: '0 0 * * *'

jobs:
  build:
    name: 'Build (branch: ${{ matrix.branches }})'
    runs-on: ubuntu-latest

    strategy:
      matrix:
        branches: ['dev', 'support/1.0.x', 'support/1.1.x', 'support/2.0.x']
    
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          ref: ${{ matrix.branches }}
      - name: Get build number
        run: echo "::set-output name=build-number::$(date +%s)"
        id: get-build-number
      - name: Copy files in 'library' directory
        run: |
          mkdir library
          cp -r ./src ./composer.json ./composer.lock ./.gitignore library
          echo -e 'branch: ${{ matrix.branches }}\nbuild_number: ${{ steps.get-build-number.outputs.build-number }}' > library/.NIGHTLY_BUILD
      - name: Format branch name
        run: |
          echo '${{ matrix.branches }}' > BRANCH
          sed -i 's/\//_/g' BRANCH
          echo "::set-output name=branch::$(cat BRANCH)"
          rm BRANCH
        id: format-branch-name
      - name: Upload compressed library
        uses: actions/upload-artifact@v1
        with:
          name: Nightly build (branch ${{ steps.format-branch-name.outputs.branch }}, build number ${{ steps.get-build-number.outputs.build-number }})
          path: ./library