contextsafe/.github/workflows/ci.yml at roadmap/b-021-cross-platform-determinism · ghzhost/contextsafe · GitHub

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name: CI

on:
  pull_request:
    paths-ignore:
      - "**.md"
      - "docs/**"
      - "LICENSE"
  push:
    branches:
      - main
    paths-ignore:
      - "**.md"
      - "docs/**"
      - "LICENSE"

permissions:
  contents: read

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  verify:
    name: verify
    runs-on: ubuntu-24.04
    timeout-minutes: 15
    permissions:
      contents: read
    env:
      UV_PYTHON: "3.12"
      UV_PYTHON_DOWNLOADS: never
    steps:
      - name: Check out repository
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
        with:
          persist-credentials: false

      - name: Set up Python
        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
        with:
          python-version: "3.12"
          check-latest: false

      - name: Set up uv
        uses: astral-sh/setup-uv@11f9893b081a58869d3b5fccaea48c9e9e46f990 # v8.3.2
        with:
          version: "0.11.28"
          enable-cache: true

      - name: Run the local verification gate
        run: make verify

  determinism:
    # RG-15 and R-10 ask for identical deterministic JSON across three runs and
    # every supported operating system. `verify` proves that on one runner; this
    # job is the cross-platform half, running only tests/test_determinism.py so a
    # platform-dependent line ending, encoding, or path leak fails here instead
    # of in a partner's release evidence. These are GitHub's server SKUs, not the
    # Windows 11 and macOS desktop fresh installs RG-15 requires, and packaged
    # artifacts remain B-045; this job is byte-reproducibility evidence only.
    name: determinism (${{ matrix.os }})
    runs-on: ${{ matrix.os }}
    timeout-minutes: 15
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-24.04, macos-15, windows-2025]
    permissions:
      contents: read
    env:
      UV_PYTHON: "3.12"
      UV_PYTHON_DOWNLOADS: never
    steps:
      - name: Check out repository
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
        with:
          persist-credentials: false

      - name: Set up Python
        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
        with:
          python-version: "3.12"
          check-latest: false

      - name: Set up uv
        uses: astral-sh/setup-uv@11f9893b081a58869d3b5fccaea48c9e9e46f990 # v8.3.2
        with:
          version: "0.11.28"
          enable-cache: true

      - name: Install the frozen dependency graph
        run: uv sync --frozen

      - name: Three-run determinism suite
        run: uv run pytest tests/test_determinism.py