ci.yml

name: CI

on:
  push:
    branches: ["**"]
  pull_request:

jobs:
  test:
    name: test (linux)
    runs-on: ubuntu-latest
    # The pixi workspace targets linux-64 only (the dev `seq2logo` env needs
    # Python 2.7, which has no macOS-arm64/Windows conda builds), so CI runs on
    # Linux. The published wheel is pure-Python; cross-platform behaviour of the
    # numba engine / pyarrow is covered by their upstream wheels.
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0 # hatch-vcs derives the version from tags/history

      - name: Set up pixi
        uses: prefix-dev/setup-pixi@v0.8.1
        with:
          pixi-version: latest
          environments: default

      - name: Install package (editable)
        # Build isolation pulls the build backend (hatchling + hatch-vcs) from
        # build-system.requires; hatch-vcs needs the git history fetched above.
        run: pixi run pip install -e .

      - name: Lint (ruff)
        run: pixi run ruff check src tests

      - name: Format check (black)
        run: pixi run black --check src tests

      - name: Tests (pytest)
        run: pixi run pytest -q