name: Update README

on:
  push:
    paths:
      - '.src/documentation/PROJECT.md'
      - '.src/documentation/CODE_OF_CONDUCT.md'
      - '.src/documentation/CONTRIBUTING.md'

jobs:
  update-readme:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout repository
      uses: actions/checkout@v2

    - name: Combine markdown files
      run: |
        cat .src/documentation/PROJECT.md > README.md
        echo -e "\n\n" >> README.md
        cat .src/documentation/INSTALL.md > README.md
        echo -e "\n\n" >> README.md
        cat .src/documentation/CODE_OF_CONDUCT.md >> README.md
        echo -e "\n\n" >> README.md
        cat .src/documentation/CONTRIBUTING.md >> README.md

    - name: Commit and push if changed
      run: |
        git config --global user.email "action@github.com"
        git config --global user.name "GitHub Action"
        git add README.md
        git commit -m "Update README" || exit 0
        git push