sintonia/.github/workflows/package-release.yml

name: Create Release .tar.gz

on:
  push:
    branches: [ master ]
    # Sequence of patterns matched against refs/tags
    tags:
    - '\d+.\d+.\d+(~\s+\.\d+)*' # Originally '*', changes by @paddatrapper
  workflow_dispatch:

jobs:
  build:
    name: Upload Release Asset
    runs-on: ubuntu-18.04
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
      - name: Read file contents
        id: release_notes_file
        uses: andstor/file-reader-action@v1
        with:
          path: ./.github/RELEASE.md
      - name: Create Release
        id: create_release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ github.ref }}
          release_name: Release ${{ github.ref }}
          body: ${ steps.release_notes_file.outputs.contents }
          draft: false
          prerelease: false
      - name: Build project # This would actually build your project
        run: sudo bash ./.github/scripts/release.sh ${{ github.ref }}
      - name: Upload Release Asset
        id: upload-release-asset 
        uses: actions/upload-release-asset@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          upload_url: ${{ steps.create_release.outputs.upload_url }} # This pulls from the CREATE RELEASE step above, referencing it's ID to get its outputs object, which include a `upload_url`. See this blog post for more info: https://jasonet.co/posts/new-features-of-github-actions/#passing-data-to-future-steps 
          asset_path: ../libretime-${{ github.ref }}.tar.gz
          asset_name: libretime-${{ github.ref }}.tar.gz
          asset_content_type: application/tgz