phpcs.yml

name: "PHPCS"

on:
    pull_request:
        paths:
            - "**.php"
            - "phpcs.xml"
            - ".github/workflows/phpcs.yml"

jobs:
    phpcs:
        runs-on: ubuntu-latest
        steps:
            - uses: actions/checkout@v2
              with:
                  fetch-depth: 0 # important!

            # we may use whatever way to install phpcs, just specify the path on the next step
            # however, curl seems to be the fastest
            - name: Install PHP_CodeSniffer
              run: |
                  curl -OL https://squizlabs.github.io/PHP_CodeSniffer/phpcs.phar
                  php phpcs.phar --version

            - uses: tinovyatkin/action-php-codesniffer@v1
              with:
                  files: "**.php" # you may customize glob as needed
                  phpcs_path: php phpcs.phar
                  standard: phpcs.xml