Lint workflow (holgern/pyedflib)

The Lint workflow from holgern/pyedflib, explained and optimized by Latchkey.

What it does

This is the Lint workflow from the holgern/pyedflib repository, a real project running GitHub Actions. It is shown here with attribution under its BSD-3-Clause license.

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

The workflow

name: Lint
on:
  pull_request:
    branches:
      - '*'
permissions:
  contents: read
jobs:
  ruff:
    runs-on: ubuntu-latest
    steps: 
      - uses: actions/checkout@v4
      - uses: astral-sh/ruff-action@v3
      - name: Lint with Ruff
        run: ruff check --output-format=github

The same workflow, on Latchkey

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

name: Lint
on:
  pull_request:
    branches:
      - '*'
permissions:
  contents: read
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  ruff:
    timeout-minutes: 30
    runs-on: latchkey-small
    steps: 
      - uses: actions/checkout@v4
      - uses: astral-sh/ruff-action@v3
      - name: Lint with Ruff
        run: ruff check --output-format=github
 

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• Cancel superseded runs when a branch or PR gets a newer push.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 per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow