language-check.yml

name: Check README Suffixes

on:
  pull_request:
    paths:
      - 'README-*'

jobs:
  check-readme-suffixes:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout repository
      uses: actions/checkout@v4

    - name: Set up Ruby
      uses: ruby/setup-ruby@v1
      with:
        ruby-version: 3.0

    - name: Install dependencies
      run: |
        gem install nokogiri

    - name: Check README suffixes
      run: |
        # Scrape ISO 639 language codes from the Wiki page
        wget -qO- https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes | \
        nokogiri -e 'puts $_.css(".wikitable td:nth-child(2)").map(&:text)' | \
        sed -nr '/^.{0,2}$/p' | tr '[:lower:]' '[:upper:]' > iso639.txt  # Grab only two letter values

        # Debug statement
        echo "Show the information of iso639.txt:"
        cat iso639.txt

        # Get list of README file names
        readme_suffixes=$(ls README-* | sed 's/README-//g; s/.md//g')

        # Debug statement
        echo "List of README suffixes:"
        echo "$readme_suffixes"

        # Check if README suffixes are valid ISO 639 language codes
        for suffix in $readme_suffixes; do
          if ! grep -qw "$suffix" iso639.txt; then
            echo "Error: Invalid README suffix found: $suffix"
            exit 1
          fi
        done

        echo "All README suffixes are valid ISO 639 language codes."

  # Add more steps for your existing workflow, e.g., running tests or other checks