Pytest Checks workflow (dooit-org/dooit)

The Pytest Checks workflow from dooit-org/dooit, explained and optimized by Latchkey.

What it does

This is the Pytest Checks workflow from the dooit-org/dooit repository, a real project running GitHub Actions. It is shown here with attribution under its MIT license.

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

The workflow

name: Pytest Checks
on:
  push:
    branches:
      - develop
  # pull_request:
  #   branches:
  #     - main
  #     - develop
jobs:
  test:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-version: ["3.9", "3.10", "3.11", "3.12"]
    steps:
      - uses: actions/checkout@v2
      - name: Install uv
        uses: astral-sh/setup-uv@v4
      - name: Set up Python ${{ matrix.python-version }}
        run: uv python install ${{ matrix.python-version }}
      - name: Install dependencies
        run: uv sync
      - name: Run Tests
        run: uv run pytest

The same workflow, on Latchkey

Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.

name: Pytest Checks
on:
  push:
    branches:
      - develop
  # pull_request:
  #   branches:
  #     - main
  #     - develop
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  test:
    timeout-minutes: 30
    runs-on: latchkey-small
    strategy:
      matrix:
        python-version: ["3.9", "3.10", "3.11", "3.12"]
    steps:
      - uses: actions/checkout@v2
      - name: Install uv
        uses: astral-sh/setup-uv@v4
      - name: Set up Python ${{ matrix.python-version }}
        run: uv python install ${{ matrix.python-version }}
      - name: Install dependencies
        run: uv sync
      - name: Run Tests
        run: uv run pytest
 

What changed

• Run on Latchkey managed runners with one line (runs-on), which apply the fixes below automatically and self-heal transient failures. This example uses latchkey-small; pick the runner size that fits the job.
• Cancel superseded runs when a branch or PR gets a newer push.
• Add a job timeout so a hung step cannot burn hours of runner time.

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 1 job (4 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