nightly-pypi.yml

name: Nightly PyPI Publish
on:
  schedule:
    - cron: "18 7 * * *"   # 07:18 UTC daily
  workflow_dispatch: {}     # allow manual runs (no publish)
  push:
    tags:
      - "v*"
      - "*.*.*"

permissions:
  contents: read
  id-token: write  # Required for Trusted Publishing (OIDC)

jobs:
  build-and-publish:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v6
        with:
          fetch-depth: 0      # setuptools-scm requires full history/tags

      - uses: actions/setup-python@v6
        with:
          python-version: "3.13"

      # This step checks if there are new commits since the last nightly publish.
      # Output: steps.check.outputs.should_publish - 'true' if new commits exist, 'false' otherwise
      - name: Check for new commits since last nightly
        id: check
        if: github.ref_type != 'tag'
        env:
          PACKAGE_NAME: cutracer
          PACKAGE_PATH: python/
        run: |
          curl -fsSL https://github.com/meta-pytorch/tritonparse/raw/refs/heads/main/.github/scripts/check_new_commits.sh | bash

      - name: Compute nightly version from latest tag (next patch + timestamp)
        id: ver
        if: github.ref_type != 'tag' && steps.check.outputs.should_publish != 'false'
        run: |
          # Get latest tag; allow 'v' prefix; fail if none
          if ! TAG=$(git describe --tags --abbrev=0 2>/dev/null); then
            echo "::error title=No git tag found::Repository has no tags. Add a semver tag like v0.1.0"
            exit 1
          fi
          BASE=${TAG#v}
          # Require a semantic version X.Y.Z (optionally with a suffix) before proceeding
          if ! printf "%s\n" "$BASE" | grep -Eq '^[0-9]+\.[0-9]+\.[0-9]+'; then
            echo "::error title=Invalid git tag::Latest tag '$TAG' is not a semantic version like v0.1.0"
            exit 1
          fi
          # Keep only X.Y.Z form (strip rc/a/b/post/dev suffixes)
          BASE=$(printf "%s\n" "$BASE" | sed -E 's/^([0-9]+)\.([0-9]+)\.([0-9]+).*/\1.\2.\3/')
          IFS='.' read -r MAJ MIN PAT <<< "$BASE"
          # Use next patch version as the nightly base
          PAT=$((PAT + 1))
          NEXT="$MAJ.$MIN.$PAT"
          DATE=$(date -u +%Y%m%d%H%M%S)
          echo "NVER=${NEXT}.dev${DATE}" >> "$GITHUB_OUTPUT"
          echo "Computed nightly version: ${NEXT}.dev${DATE}"

      - name: Build sdist/wheel
        if: github.ref_type == 'tag' || steps.check.outputs.should_publish != 'false'
        run: |
          python -m pip install --upgrade pip
          pip install build setuptools-scm
          if [ "${{ github.ref_type }}" != "tag" ]; then
            export SETUPTOOLS_SCM_PRETEND_VERSION=${{ steps.ver.outputs.NVER }}
          fi
          cd python
          python -m build

      - name: Check metadata
        if: github.ref_type == 'tag' || steps.check.outputs.should_publish != 'false'
        run: |
          pip install twine
          twine check python/dist/*

      - name: Publish to PyPI (Trusted Publishing)
        if: (github.event_name == 'schedule' || github.ref_type == 'tag') && steps.check.outputs.should_publish != 'false'
        uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # v1.14.0
        with:
          packages-dir: python/dist/
          attestations: true
          skip-existing: true