tree_readme.yml

name: Generate README

on: push

jobs:
  generate-tree:
    runs-on: ubuntu-latest
    permissions:
      contents: write

    steps:
    - name: 'Checkout Repository'
      uses: actions/checkout@v3
      with:
        persist-credentials: false
        fetch-depth: 0
            
    - name: Running Script
      run: |
        tree --noreport -I 'README.md|LICENSE|tree.txt' > tree.txt
        sed -i "9,100d" README.md
        echo '```' >> tree.txt 
        cat tree.txt >> README.md
        echo '=========== README.md ==========='
        cat README.md
            
    - name: Commit files
      run: |
        git config --local user.email "github-actions[bot]@users.noreply.github.com"
        git config --local user.name "github-actions[bot]"        
        git commit -am "Update tree"
        
    - name: Push changes
      uses: ad-m/github-push-action@master
      with:
        github_token: ${{ secrets.GITHUB_TOKEN }}
        branch: ${{ github.ref }}