Register.yml

name: Build Registry

on:
  release:
    types: [ published ]   # fires when you publish or re-publish a GitHub Release

jobs:
  generate:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      pages: write          # to upload artefacts for the Pages site
      id-token: write
    steps:
      - uses: actions/checkout@v4

      - name: 🔽 Download wheels attached to this Release
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          TAG=${{ github.event.release.tag_name }}
          mkdir -p registry/wheels
          gh release download "$TAG" --pattern '*.whl' -D registry/wheels

      - name: 🏗 Build index.json
        run: |
          python <<'PY'
          import json, hashlib, pathlib, urllib.parse, os
          root = pathlib.Path("registry")
          wheels_path = root / "wheels"
          index = {}
          base_url = "https://drQedwards.github.io/PPM/wheels/"
          for wheel in wheels_path.glob("*.whl"):
              # Extract "package-version-*.whl"
              name, version, *_ = wheel.stem.split("-")
              sha256 = hashlib.sha256(wheel.read_bytes()).hexdigest()
              url = urllib.parse.urljoin(base_url, wheel.name)
              index.setdefault(name, {})[version] = {"url": url, "sha256": sha256}
          (root / "index.json").write_text(json.dumps(index, indent=2))
          PY

      - name: ⬆️ Upload registry artefacts for Pages deployment
        uses: actions/upload-pages-artifact@v3
        with:
          path: registry          # merged into /registry on next Pages deploy