CI workflow (chapmanjacobd/library)

The CI workflow from chapmanjacobd/library, explained and optimized by Latchkey.

What it does

This is the CI workflow from the chapmanjacobd/library 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: CI
on: [push]
jobs:
  # This exists only to show the green checkmark on the repo
  # green = "good" || "secure"
  action-which-makes-garmonbozia:
    runs-on: ubuntu-latest
    steps:
      - run: echo ""

The same workflow, on Latchkey

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

name: CI
on: [push]
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  # This exists only to show the green checkmark on the repo
  # green = "good" || "secure"
  action-which-makes-garmonbozia:
    timeout-minutes: 30
    runs-on: latchkey-small
    steps:
      - run: echo ""
 

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• Cancel superseded runs when a branch or PR gets a newer push.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