create-github-release.yml

name: Create GitHub Release Draft

on: workflow_call

jobs:
  release-draft-with-changelog:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout Code
        uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - name: Get previous tag
        id: previousTag
        run: |
          name=$(git --no-pager tag --sort=-v:refname --merged ${{ github.ref_name }} | sed -n 2,2p)
          name=${name:=$(git rev-list --max-parents=0 HEAD)}
          echo "previousTag: $name"
          echo "previousTag=$name" >> $GITHUB_ENV

      - name: Update CHANGELOG
        id: changelog
        uses: requarks/changelog-action@v1
        with:
          token: ${{ github.token }}
          fromTag: ${{ github.ref_name }}
          toTag: ${{ env.previousTag }}

      - name: Create Release
        uses: ncipollo/release-action@v1
        with:
          allowUpdates: true
          draft: false
          name: ${{ github.ref_name }}
          body: ${{ steps.changelog.outputs.changes }}
          token: ${{ secrets.GITHUB_TOKEN }}