pr workflow (vladkens/twscrape)

The pr workflow from vladkens/twscrape, explained and optimized by Latchkey.

What it does

This is the pr workflow from the vladkens/twscrape 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: pr

on:
  pull_request:
  pull_request_target:
    types: [opened, reopened]

permissions: read-all

jobs:
  test:
    if: github.event_name == 'pull_request'
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
    steps:
      - uses: actions/checkout@v6
      - uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
        with:
          python-version: ${{ matrix.python-version }}

      - run: uv sync --frozen
      - run: make check
      - run: make test

The same workflow, on Latchkey

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

name: pr
 
on:
  pull_request:
  pull_request_target:
    types: [opened, reopened]
 
permissions: read-all
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  test:
    timeout-minutes: 30
    if: github.event_name == 'pull_request'
    runs-on: latchkey-small
    strategy:
      fail-fast: false
      matrix:
        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
    steps:
      - uses: actions/checkout@v6
      - uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
        with:
          python-version: ${{ matrix.python-version }}
 
      - run: uv sync --frozen
      - run: make check
      - run: make test
 

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• Cancel superseded runs when a branch or PR gets a newer push.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.

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