validate.yml

name: Validate catalogue contract

on:
  pull_request:

permissions:
  contents: read

jobs:
  catalog-contract:
    name: catalog-contract
    runs-on: ubuntu-latest

    steps:
      - name: Check out repository
        uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: Set up Python
        uses: actions/setup-python@v6
        with:
          python-version: "3.12"

      - name: Validate canonical catalogue surfaces
        run: python3 scripts/validate_catalog.py --base-ref "${{ github.event.pull_request.base.sha }}"

      - name: Verify maintainer exception boundaries
        run: python3 scripts/test_validation_exceptions.py

      - name: Install preview validation dependency
        run: python3 -m pip install -r requirements-dev.txt

      - name: Validate preview timing and still alternatives
        run: python3 scripts/validate_previews.py

      - name: Check patch whitespace
        run: git diff --check "${{ github.event.pull_request.base.sha }}...${{ github.event.pull_request.head.sha }}"