CI workflow (antfu/eslint-config)
The CI workflow from antfu/eslint-config, explained and optimized by Latchkey.
CI health: F - at risk
Point runs-on at Latchkey and get caching, run de-duplication, job timeouts, SHA-pinned actions, self-healing for flaky steps, and up to 58% lower cost, applied automatically.
What it does
This is the CI workflow from the antfu/eslint-config 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: CI
on:
push:
branches:
- main
pull_request:
branches:
- main
jobs:
lint:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Install pnpm
uses: pnpm/action-setup@v4
- name: Set node
uses: actions/setup-node@v4
with:
node-version: lts/*
- name: Setup
run: npm i -g @antfu/ni
- name: Install
run: nci
- name: Build
run: nr build
- name: Lint
run: nr lint
- name: Typecheck
run: nr typecheck
test:
runs-on: ${{ matrix.os }}
strategy:
matrix:
node: [lts/*]
os: [ubuntu-latest, windows-latest, macos-latest]
fail-fast: false
steps:
- uses: actions/checkout@v4
- name: Install pnpm
uses: pnpm/action-setup@v4
- name: Set node ${{ matrix.node }}
uses: actions/setup-node@v4
with:
node-version: ${{ matrix.node }}
- name: Setup
run: npm i -g @antfu/ni
- name: Install
run: nci
- name: Build
run: nr build
- name: Test
run: nr 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: branches: - main pull_request: branches: - main concurrency: group: ${{ github.workflow }}-${{ github.ref }} cancel-in-progress: true jobs: lint: timeout-minutes: 30 runs-on: latchkey-small steps: - uses: actions/checkout@v4 - name: Install pnpm uses: pnpm/action-setup@v4 - name: Set node uses: actions/setup-node@v4 with: cache: 'npm' node-version: lts/* - name: Setup run: npm i -g @antfu/ni - name: Install run: nci - name: Build run: nr build - name: Lint run: nr lint - name: Typecheck run: nr typecheck test: timeout-minutes: 30 runs-on: ${{ matrix.os }} strategy: matrix: node: [lts/*] os: [ubuntu-latest, windows-latest, macos-latest] fail-fast: false steps: - uses: actions/checkout@v4 - name: Install pnpm uses: pnpm/action-setup@v4 - name: Set node ${{ matrix.node }} uses: actions/setup-node@v4 with: cache: 'npm' node-version: ${{ matrix.node }} - name: Setup run: npm i -g @antfu/ni - name: Install run: nci - name: Build run: nr build - name: Test run: nr 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 useslatchkey-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.
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 2 jobs (4 with the matrix expanded) per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.