release.yml

name: Release
on:
  milestone:
    types: [closed]
  workflow_call:
  workflow_dispatch:

jobs:
  draft:
    name: Draft
    runs-on: ubuntu-latest
    permissions:
      contents: write
      discussions: write
    steps:
      - name: Date
        id: date
        run: |
          CUR_DATE=`date +"%Y.%m.%d"`
          echo "value=$CUR_DATE" >> "$GITHUB_OUTPUT"

      - name: Title
        id: title
        run: |
          # https://docs.github.com/en/rest/issues/milestones?apiVersion=2022-11-28#get-a-milestone
          TITLE="${{ github.event_name == 'milestone' && format('{0} ({1})', github.event.milestone.title, steps.date.outputs.value) || steps.date.outputs.value }}"
          echo "value=$TITLE" >> "$GITHUB_OUTPUT"

      - name: Page
        id: release
        uses: softprops/action-gh-release@v1
        with:
          draft: true
          tag_name: ${{ (startsWith(github.ref, 'refs/tags/') && github.ref) || steps.date.outputs.value }}
          name: ${{ steps.title.outputs.value }}
          generate_release_notes: true