Setup

Add a yml file like the following under the .github/workflows directory

name: generate_release
on:
  workflow_dispatch:
    inputs:
      version:
        description: "Version name"
        default: "v1.0.0"
        required: true

jobs:
  generate:
    timeout-minutes: 1
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: maemae-dev/release-generator@main
        with:
          version: ${{ github.event.inputs.version }}
          branch: ${{ github.head_ref }}
          token: ${{ secrets.GITHUB_TOKEN }}

Usage

1. Create a milestone named v1.0.0
2. Assign them milestone to pull requests
3. From Actions Tab, press the Run workflow button.
4. Select target branch and enter milestone name (e.g. v1.0.0)
5. From Code Tab, you can see Draft release