CI workflow (babel/minify)
The CI workflow from babel/minify, explained and optimized by Latchkey.
C
CI health: C - fair
Point runs-on at Latchkey and get run de-duplication, job timeouts, self-healing for flaky steps, and up to 58% lower cost, applied automatically.
What it does
This is the CI workflow from the babel/minify 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: CI
on: [push, pull_request]
jobs:
build:
name: Build
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v3
- name: Use Node.js latest
uses: actions/setup-node@v3
with:
node-version: "*"
cache: "yarn"
- name: Bootstrap
run: yarn && yarn bootstrap
- name: Build
run: yarn build
- uses: actions/upload-artifact@v3
with:
name: lib
path: |
packages/*/lib/**/*
utils/*/lib/**
lint:
name: Lint
needs: build
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v3
- name: Use Node.js latest
uses: actions/setup-node@v3
with:
node-version: "*"
cache: "yarn"
- name: Install
run: yarn
- name: Lint
run: yarn lint
test:
name: Test on Node.js # GitHub will add ${{ matrix.node-version }} to this title
needs: build
runs-on: ubuntu-latest
strategy:
fail-fast: false
matrix:
node-version: [16, 14, 12, 10, 8, 6]
steps:
- name: Checkout code
uses: actions/checkout@v3
- name: Use Node.js ${{ matrix.node-version }} # Checkout node version for test executor
uses: actions/setup-node@v3
with:
node-version: ${{ matrix.node-version }}
cache: "yarn"
- name: Install
run: yarn && yarn bootstrap
- uses: actions/download-artifact@v3
with:
name: lib
- name: Test
run: yarn test
The same workflow, on Latchkey
Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.
name: CI on: [push, pull_request] concurrency: group: ${{ github.workflow }}-${{ github.ref }} cancel-in-progress: true jobs: build: timeout-minutes: 30 name: Build runs-on: latchkey-small steps: - name: Checkout code uses: actions/checkout@v3 - name: Use Node.js latest uses: actions/setup-node@v3 with: node-version: "*" cache: "yarn" - name: Bootstrap run: yarn && yarn bootstrap - name: Build run: yarn build - uses: actions/upload-artifact@v3 with: name: lib path: | packages/*/lib/**/* utils/*/lib/** lint: timeout-minutes: 30 name: Lint needs: build runs-on: latchkey-small steps: - name: Checkout code uses: actions/checkout@v3 - name: Use Node.js latest uses: actions/setup-node@v3 with: node-version: "*" cache: "yarn" - name: Install run: yarn - name: Lint run: yarn lint test: timeout-minutes: 30 name: Test on Node.js # GitHub will add ${{ matrix.node-version }} to this title needs: build runs-on: latchkey-small strategy: fail-fast: false matrix: node-version: [16, 14, 12, 10, 8, 6] steps: - name: Checkout code uses: actions/checkout@v3 - name: Use Node.js ${{ matrix.node-version }} # Checkout node version for test executor uses: actions/setup-node@v3 with: node-version: ${{ matrix.node-version }} cache: "yarn" - name: Install run: yarn && yarn bootstrap - uses: actions/download-artifact@v3 with: name: lib - name: Test 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 useslatchkey-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 3 jobs (8 with the matrix expanded) per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.