release-notes.yml

# Trigger the workflow on milestone events
on:
  milestone:
    types: [closed]
name: Milestone Closure
jobs:
  create-release-notes:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout code
      uses: actions/checkout@master
    - name: Create Release Notes Markdown
      uses: docker://decathlon/release-notes-generator-action:3.1.5
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # This token is provided by Actions, you do not need to create your own token
        OUTPUT_FOLDER: temp_release_notes
        USE_MILESTONE_TITLE: "true"
    - name: Get the name of the created Release Notes file and extract Version
      run: |
        RELEASE_NOTES_FILE=$(ls temp_release_notes/*.md | head -n 1)
        echo "RELEASE_NOTES_FILE=$RELEASE_NOTES_FILE" >> $GITHUB_ENV
        VERSION=$(echo ${{ github.event.milestone.title }} | cut -d' ' -f2)
        echo "VERSION=$VERSION" >> $GITHUB_ENV
    - name: Create a Draft Release Notes on GitHub
      id: create_release
      uses: actions/create-release@v1
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # This token is provided by Actions, you do not need to create your own token
      with:
        tag_name: ${{ env.VERSION }}
        release_name:  ${{ env.VERSION }}
        body_path: ${{ env.RELEASE_NOTES_FILE }}
        draft: true