CI workflow (uxsolutions/bootstrap-datepicker)

The CI workflow from uxsolutions/bootstrap-datepicker, explained and optimized by Latchkey.

What it does

This is the CI workflow from the uxsolutions/bootstrap-datepicker repository, a real project running GitHub Actions. It is shown here with attribution under its Apache-2.0 license.

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

The workflow

name: CI

on:
    [push, pull_request]

jobs:
    test:
        name: Test
        runs-on: ubuntu-latest

        steps:
            -   uses: actions/checkout@v2
            -   uses: actions/setup-node@v1

            -   name: Install grunt
                run: yarn global add grunt-cli

            -   name: Install dependencies
                run: yarn

            -   name: Run tests
                run: yarn test

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: CI
 
on:
    [push, pull_request]
 
concurrency:
    group: ${{ github.workflow }}-${{ github.ref }}
    cancel-in-progress: true
 
jobs:
    test:
        timeout-minutes: 30
        name: Test
        runs-on: latchkey-small
 
        steps:
            -   uses: actions/checkout@v2
            -   uses: actions/setup-node@v1
                with:
                    cache: 'npm'
 
            -   name: Install grunt
                run: yarn global add grunt-cli
 
            -   name: Install dependencies
                run: yarn
 
            -   name: Run tests
                run: yarn 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• Cancel superseded runs when a branch or PR gets a newer push.
• 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 per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow