release-note.yml

name: "3. Release Notes"

on:
  push:
    tags:
      - "frontend/v*"
      - "backend/v*"

permissions:
  contents: write

jobs:
  release:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Fetch tags
        run: git fetch --tags --force

      - name: Create GitHub Release
        env:
          GH_TOKEN: ${{ secrets.PAT }}
        run: |
          tag="${GITHUB_REF_NAME}"

          # 태그에서 prefix와 버전 추출 (frontend/v1.2.3 → prefix=frontend, version=1.2.3)
          prefix="${tag%%/*}"
          version="${tag#*/}"

          # 이전 태그 찾기
          latest_tag=$(git tag -l "${prefix}/v*" --sort=-v:refname | grep -v "^${tag}$" | head -n 1)

          echo "Creating release for: $tag"
          echo "   prefix: $prefix, version: $version"
          echo "   previous tag: ${latest_tag:-none}"

          release_args=(
            "$tag"
            --title "${prefix} ${version}"
            --generate-notes
            --latest
          )

          # 이전 태그가 존재하면 비교 기준으로 지정
          if [ -n "$latest_tag" ] && git rev-parse "$latest_tag" >/dev/null 2>&1; then
            release_args+=(--notes-start-tag "$latest_tag")
          fi

          gh release create "${release_args[@]}"