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Action workflow (wntrblm/nox)

The Action workflow from wntrblm/nox, explained and optimized by Latchkey.

F

CI health: F - at risk

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Source: wntrblm/nox.github/workflows/action.ymlLicense Apache-2.0View source

What it does

This is the Action workflow from the wntrblm/nox repository, a real project running GitHub Actions. It is shown here with attribution under its Apache-2.0 license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

workflow (.yml)
name: Action
on:
  push:
    branches:
      - "main"
      - "**action**"
  pull_request:
    paths:
      - ".github/workflows/action.yml"
      - ".github/action_helper.py"
      - "action.yml"
  workflow_dispatch:
    # allow manual runs on branches without a PR

env:
  FORCE_COLOR: "1"

permissions: {}

jobs:
  action-default-tests:
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os:
          - ubuntu-24.04
          - ubuntu-24.04-arm
          - windows-2022
          - windows-2025
          - windows-11-arm
          - macos-15-intel
          - macos-15
    steps:
      - uses: actions/checkout@v7.0.0
        with:
          persist-credentials: false
      - uses: astral-sh/setup-uv@v8.2.0
      - uses: ./
      - run: nox --session github_actions_default_tests

  action-all-tests:
    runs-on: windows-latest
    steps:
      - uses: actions/checkout@v7.0.0
        with:
          persist-credentials: false
      - uses: actions/setup-python@v6
        with:
          python-version: 3.12
      - uses: ./
        with:
          python-versions: "pypy-2.7, pypy-3.8, pypy-3.9, pypy-3.10, pypy-3.11, 3.6, 3.7, 3.8, 3.9, 3.10, 3.11, 3.12, 3.13, 3.14, 3.15, 3.13t, 3.14t, 3.15t"
      - run: nox --session github_actions_all_tests

The same workflow, on Latchkey

Estimated ~20% faster on cache hits, plus fewer wasted runs and a safer supply chain. Added and changed lines are highlighted.

name: Action
on:
  push:
    branches:
      - "main"
      - "**action**"
  pull_request:
    paths:
      - ".github/workflows/action.yml"
      - ".github/action_helper.py"
      - "action.yml"
  workflow_dispatch:
    # allow manual runs on branches without a PR
 
env:
  FORCE_COLOR: "1"
 
permissions: {}
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  action-default-tests:
    timeout-minutes: 30
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os:
          - ubuntu-24.04
          - ubuntu-24.04-arm
          - windows-2022
          - windows-2025
          - windows-11-arm
          - macos-15-intel
          - macos-15
    steps:
      - uses: actions/checkout@v7.0.0
        with:
          persist-credentials: false
      - uses: astral-sh/setup-uv@v8.2.0
      - uses: ./
      - run: nox --session github_actions_default_tests
 
  action-all-tests:
    timeout-minutes: 30
    runs-on: windows-latest
    steps:
      - uses: actions/checkout@v7.0.0
        with:
          persist-credentials: false
      - uses: actions/setup-python@v6
        with:
          cache: 'pip'
          python-version: 3.12
      - uses: ./
        with:
          python-versions: "pypy-2.7, pypy-3.8, pypy-3.9, pypy-3.10, pypy-3.11, 3.6, 3.7, 3.8, 3.9, 3.10, 3.11, 3.12, 3.13, 3.14, 3.15, 3.13t, 3.14t, 3.15t"
      - run: nox --session github_actions_all_tests

What changed

1 third-party action is referenced by a movable tag. Pin it to the commit SHA (Latchkey resolves and applies this automatically) so a repointed tag cannot change what runs.

This workflow runs 2 jobs (8 with the matrix expanded) per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow

actions/checkout astral-sh/setup-uv actions/setup-python