Automated Testing workflow (JoMingyu/google-play-scraper)

The Automated Testing workflow from JoMingyu/google-play-scraper, explained and optimized by Latchkey.

What it does

This is the Automated Testing workflow from the JoMingyu/google-play-scraper 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: Automated Testing

on: [push, pull_request]

jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      max-parallel: 3
      matrix:
        python-version: [3.6, 3.7, 3.8, 3.9, 3.10]

    steps:
    - uses: actions/checkout@v1

    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v2
      with:
        python-version: ${{ matrix.python-version }}

    - name: Run tests
      run: pytest

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: Automated Testing
 
on: [push, pull_request]
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  build:
    timeout-minutes: 30
    runs-on: latchkey-small
    strategy:
      max-parallel: 3
      matrix:
        python-version: [3.6, 3.7, 3.8, 3.9, 3.10]
 
    steps:
    - uses: actions/checkout@v1
 
    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v2
      with:
        cache: 'pip'
        python-version: ${{ matrix.python-version }}
 
    - name: Run tests
      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• Cancel superseded runs when a branch or PR gets a newer push.
• Cache dependency installs on the setup step so they are served from cache.
• Add a job timeout so a hung step cannot burn hours of runner time.

This workflow runs 1 job (5 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