Node CI workflow (redux-saga/redux-saga)

The Node CI workflow from redux-saga/redux-saga, explained and optimized by Latchkey.

What it does

This is the Node CI workflow from the redux-saga/redux-saga 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: Node CI

on:
  pull_request:
  push:
    branches: [main]

jobs:
  check:
    runs-on: ubuntu-latest

    strategy:
      matrix:
        node: ['20']

    steps:
      - uses: actions/checkout@v4

      - name: Use Node.js ${{ matrix.node }}
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node }}
          cache: yarn

      - name: Install dependencies
        run: yarn

      - name: Lint
        run: yarn lint

      - name: Build
        run: yarn build

      - name: Type tests
        run: yarn test:types

      - name: Test
        run: yarn test

The same workflow, on Latchkey

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

name: Node CI
 
on:
  pull_request:
  push:
    branches: [main]
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  check:
    timeout-minutes: 30
    runs-on: latchkey-small
 
    strategy:
      matrix:
        node: ['20']
 
    steps:
      - uses: actions/checkout@v4
 
      - name: Use Node.js ${{ matrix.node }}
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node }}
          cache: yarn
 
      - name: Install dependencies
        run: yarn
 
      - name: Lint
        run: yarn lint
 
      - name: Build
        run: yarn build
 
      - name: Type tests
        run: yarn test:types
 
      - 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 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• Cancel superseded runs when a branch or PR gets a newer push.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.

Actions used in this workflow