create-release.yml

name: Create GitHub Release from Tag

# Trigger: annotated tag pushed (vX.Y.Z)
on:
  push:
    tags:
      - 'v*.*.*'

jobs:
  release:
    runs-on: ubuntu-latest
    permissions:
      contents: write

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

      - name: Extract tag annotation message
        id: tag_body
        run: |
          TAG="${GITHUB_REF_NAME}"
          # Get full annotation message (body only, strip first line if it's just the version)
          BODY="$(git tag -l --format='%(contents)' "$TAG")"
          if [[ -z "${BODY// }" ]]; then
            echo "No annotation message found for $TAG, using default."
            BODY="See CHANGELOG for details."
          fi
          # Write to file to safely handle multi-line content
          printf '%s' "$BODY" > /tmp/release_body.txt
          echo "tag=$TAG" >> "$GITHUB_OUTPUT"

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ steps.tag_body.outputs.tag }}
          name: ${{ steps.tag_body.outputs.tag }}
          body_path: /tmp/release_body.txt
          draft: false
          prerelease: false
          generate_release_notes: false