pysen-test workflow (pfnet/pysen)

The pysen-test workflow from pfnet/pysen, explained and optimized by Latchkey.

CI health: A - excellent

Point runs-on at Latchkey and get run de-duplication, self-healing for flaky steps, and up to 58% lower cost, applied automatically.

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Source: pfnet/pysen.github/workflows/pysen-test.ymlLicense MITView source

What it does

This is the pysen-test workflow from the pfnet/pysen 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

workflow (.yml)

name: pysen-test
on:
  push:
    branches:
      - main
  pull_request: {}
jobs:
  tox_post_310:
    name: Run pysen-test
    runs-on: ubuntu-24.04
    timeout-minutes: 15
    steps:
    - uses: actions/checkout@v5
      with:
        lfs: false
        path: ${{ env.CHECKOUT_PATH }}
    - name: Run test
      uses: ./.github/actions/pysen-test/
  tox_post_313:
    name: Run pysen-test-post-313
    runs-on: ubuntu-24.04
    timeout-minutes: 15
    steps:
    - uses: actions/checkout@v5
      with:
        lfs: false
        path: ${{ env.CHECKOUT_PATH }}
    - name: Run test
      uses: ./.github/actions/pysen-test-post-313/

The same workflow, on Latchkey

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

name: pysen-test
on:
  push:
    branches:
      - main
  pull_request: {}
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  tox_post_310:
    name: Run pysen-test
    runs-on: latchkey-small
    timeout-minutes: 15
    steps:
    - uses: actions/checkout@v5
      with:
        lfs: false
        path: ${{ env.CHECKOUT_PATH }}
    - name: Run test
      uses: ./.github/actions/pysen-test/
  tox_post_313:
    name: Run pysen-test-post-313
    runs-on: latchkey-small
    timeout-minutes: 15
    steps:
    - uses: actions/checkout@v5
      with:
        lfs: false
        path: ${{ env.CHECKOUT_PATH }}
    - name: Run test
      uses: ./.github/actions/pysen-test-post-313/

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Cancel superseded runs when a branch or PR gets a newer push.

This workflow runs 2 jobs 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