prepare-release.yaml

name: Prepare release

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

jobs:
  update-release-notes:
    name: Update release
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Create archive
        id: archive
        run: |
          TAG="${GITHUB_REF_NAME}"
          REPOSITORY_NAME="${GITHUB_REPOSITORY#*/}"
          PREFIX="${REPOSITORY_NAME}-${TAG:1}"
          ARCHIVE="${PREFIX}.tar.gz"

          echo "tgz=${ARCHIVE}" >> $GITHUB_OUTPUT

          git archive --format=tar.gz --prefix="${PREFIX}/" -o "$ARCHIVE" "${TAG}"
      - name: Prepare bzlmod / WORKSPACE snippets
        run: .github/workflows/prepare_snippets.sh ${{ steps.archive.outputs.tgz }} > release_notes.txt
      - name: Generate changelog
        run: |
          printf '\n-----\n\n' >> release_notes.txt
          awk -f .github/workflows/changelog.awk CHANGELOG.md >> release_notes.txt
      - name: Release
        uses: softprops/action-gh-release@v1
        with:
          draft: true
          body_path: release_notes.txt
          fail_on_unmatched_files: true
          files: ${{ steps.archive.outputs.tgz }}