create-tag-release.yml

name: Release on Tag

on:
  push:
    tags:
      - "v[0-9]+.[0-9]+.[0-9]+"

jobs:
  release:
    runs-on: ubuntu-latest

    permissions:
      contents: write
      pull-requests: read

    name: Generate Release
    steps:
      - name: checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Get previous tag
        id: previousTag
        run: |
          name=$(git --no-pager tag --sort=creatordate --merged ${{ github.ref_name }} | tail -2 | head -1)
          echo "previousTag: $name"
          echo "previousTag=$name" >> $GITHUB_ENV

      - name: Generate changelog
        id: changelog
        uses: metcalfc/changelog-generator@v4.1.0
        with:
          myToken: ${{ secrets.GITHUB_TOKEN }}
          head-ref: ${{ env.previousTag }}
          base-ref: ${{ github.ref_name }}

      - name: Create Release
        uses: ncipollo/release-action@v1.12.0
        with:
          draft: true
          token: ${{ github.token }}
          name: "Release ${{ github.ref_name }}"
          body: "## Release Notes\n\nTODO\n\n## Commits\n\n${{ steps.changelog.outputs.changelog }}"