release.yaml

# Cut a release whenever a new tag is pushed to the repo.
name: Release

on:
  push:
    tags:
      - "v*.*.*"

permissions:
  contents: write

jobs:
  tests:
    # Do only release when CI succeeds.
    uses: ./.github/workflows/workflow.yaml

  release:
    # Do only release when CI succeeds.
    needs: [tests]
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Get version number
        id: get-version
        run: set -x; echo "version=${GITHUB_REF_NAME#v}" >> $GITHUB_OUTPUT
      - name: Read section from CHANGELOG.md
        id: extract-changelog
        uses: sean0x42/markdown-extract@v2
        with:
         file: CHANGELOG.md
         pattern: ${{ steps.get-version.outputs.version }}
      - name: Prepare release notes and artifacts
        run: |
          .github/workflows/release_prep.sh ${{ env.GITHUB_REF_NAME }} > release_notes.txt
          printf '${{ steps.extract-changelog.outputs.markdown }}' >> release_notes.txt
      - name: Release
        uses: softprops/action-gh-release@v1
        with:
          draft: true
          prerelease: true
          # Use GH feature to populate the changelog automatically
          generate_release_notes: true
          body_path: release_notes.txt
          fail_on_unmatched_files: true
          files: rules_nixpkgs*-*.tar.gz