name: lane-shas

# Verify that every ADR-0092..0099 lane produces its pinned SHA-256
# report. A failing job means a lane's deterministic output changed
# without an explicit ADR-tracked pin update via:
#
#   python scripts/verify_lane_shas.py --update
#
# Single source of truth for the pinned values is scripts/verify_lane_shas.py.
#
# PR path filter: skip the multi-lane wall-clock cost when the change cannot
# affect pin bytes (e.g. docs-only, pure physics off the demo path). Main
# still always verifies after merge.

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
    paths:
      - "scripts/verify_lane_shas.py"
      - "scripts/generate_claims.py"
      - "CLAIMS.md"
      - "evals/**"
      - "demos/**"
      - "core/demos/**"
      - "chat/**"
      - "generate/**"
      - "packs/**"
      - "teaching/**"
      - "vault/**"
      - "algebra/**"
      - "core/physics/**"
      - "core/cognition/**"
      - "core/capability/**"
      - "pyproject.toml"
      - ".github/workflows/lane-shas.yml"

permissions:
  contents: read

concurrency:
  group: lane-shas-${{ github.ref }}
  cancel-in-progress: true

jobs:
  verify:
    name: verify pinned lane SHAs
    runs-on: ubuntu-latest
    timeout-minutes: 20

    steps:
      - name: checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 1

      # setup-uv (not actions/setup-python) provisions Python on the aarch64
      # self-hosted runner; actions/setup-python has no arm64 build for the
      # pinned 3.12.13. Matches smoke.yml / full-pytest.yml.
      - name: set up uv
        uses: astral-sh/setup-uv@v5
        with:
          python-version: '3.12.13'
          enable-cache: true

      - name: install dependencies
        run: |
          uv pip install -e . pyyaml pytest

      - name: verify lane SHAs
        env:
          PYTHONPATH: ${{ github.workspace }}
          UV_LINK_MODE: copy
          # public_demo wall-clock is soft by default (see evals/public_demo/runner.py).
          # Do not set CORE_SHOWCASE_HARD_BUDGET here — cold Act runners exceed 60s.
          # Content cases (claims, determinism, pure composition) remain hard gates.
        run: |
          uv run python scripts/verify_lane_shas.py

      - name: verify CLAIMS.md is current
        env:
          PYTHONPATH: ${{ github.workspace }}
        run: |
          uv run python scripts/generate_claims.py --check

      - name: emit machine-readable report (on failure)
        if: failure()
        env:
          PYTHONPATH: ${{ github.workspace }}
        run: |
          uv run python scripts/verify_lane_shas.py --json || true