Continuous Integration workflow (parallax/jsPDF)

The Continuous Integration workflow from parallax/jsPDF, explained and optimized by Latchkey.

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Source: parallax/jsPDF.github/workflows/continuous-integration.ymlLicense MITView source

What it does

This is the Continuous Integration workflow from the parallax/jsPDF 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: Continuous Integration

on: [push, pull_request, workflow_dispatch]

jobs:
  test-browser:
    name: Browser tests
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v5
      - name: Install Node.js
        uses: actions/setup-node@v6
        with:
          node-version: 20
          cache: npm
      - name: npm install
        run: npm ci
      - name: Build
        run: npm run build
      - name: Run tests
        run: npm run test-ci

  test-node:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        node-version:
          - 20 # current LTS
          - 22 # latest
    name: Node.js ${{ matrix.node-version }} test
    steps:
      - name: Checkout
        uses: actions/checkout@v5
      - name: Install Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v6
        with:
          node-version: ${{ matrix.node-version }}
          cache: npm
      - name: npm install
        run: npm ci
      - name: Build
        run: npm run build
      - name: Run tests
        run: npm run test-node

  test-typings:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        ts-version:
          - { ts: '4.0', types-node: '17' }
          - { ts: 'latest', types-node: '20' }
    name: Typings tests (typescript@${{ matrix.ts-version.ts }})
    steps:
      - name: Checkout
        uses: actions/checkout@v5
      - name: Install Node.js
        uses: actions/setup-node@v6
        with:
          node-version: 20
          cache: npm
      - name: npm install
        run: npm ci
      - name: Install typescript@${{ matrix.ts-version.ts }}
        run: npm install typescript@${{ matrix.ts-version.ts }}
      - name: Install @types/node@${{ matrix.ts-version.types-node }}
        run: npm install @types/node@${{ matrix.ts-version.types-node }}
      - name: Run tests
        run: npm run test-typings

  lint:
    runs-on: ubuntu-latest
    name: Lint
    steps:
      - name: Checkout
        uses: actions/checkout@v5
      - name: Install Node.js
        uses: actions/setup-node@v6
        with:
          node-version: 20
          cache: npm
      - name: npm install
        run: npm ci
      - name: Check Prettier
        run: npm run lint

The same workflow, on Latchkey

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

name: Continuous Integration
 
on: [push, pull_request, workflow_dispatch]
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  test-browser:
    timeout-minutes: 30
    name: Browser tests
    runs-on: latchkey-small
    steps:
      - name: Checkout
        uses: actions/checkout@v5
      - name: Install Node.js
        uses: actions/setup-node@v6
        with:
          node-version: 20
          cache: npm
      - name: npm install
        run: npm ci
      - name: Build
        run: npm run build
      - name: Run tests
        run: npm run test-ci
 
  test-node:
    timeout-minutes: 30
    runs-on: latchkey-small
    strategy:
      matrix:
        node-version:
          - 20 # current LTS
          - 22 # latest
    name: Node.js ${{ matrix.node-version }} test
    steps:
      - name: Checkout
        uses: actions/checkout@v5
      - name: Install Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v6
        with:
          node-version: ${{ matrix.node-version }}
          cache: npm
      - name: npm install
        run: npm ci
      - name: Build
        run: npm run build
      - name: Run tests
        run: npm run test-node
 
  test-typings:
    timeout-minutes: 30
    runs-on: latchkey-small
    strategy:
      matrix:
        ts-version:
          - { ts: '4.0', types-node: '17' }
          - { ts: 'latest', types-node: '20' }
    name: Typings tests (typescript@${{ matrix.ts-version.ts }})
    steps:
      - name: Checkout
        uses: actions/checkout@v5
      - name: Install Node.js
        uses: actions/setup-node@v6
        with:
          node-version: 20
          cache: npm
      - name: npm install
        run: npm ci
      - name: Install typescript@${{ matrix.ts-version.ts }}
        run: npm install typescript@${{ matrix.ts-version.ts }}
      - name: Install @types/node@${{ matrix.ts-version.types-node }}
        run: npm install @types/node@${{ matrix.ts-version.types-node }}
      - name: Run tests
        run: npm run test-typings
 
  lint:
    timeout-minutes: 30
    runs-on: latchkey-small
    name: Lint
    steps:
      - name: Checkout
        uses: actions/checkout@v5
      - name: Install Node.js
        uses: actions/setup-node@v6
        with:
          node-version: 20
          cache: npm
      - name: npm install
        run: npm ci
      - name: Check Prettier
        run: npm run lint

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.

What Latchkey heals here

This workflow has steps that commonly fail on transient issues (network, registries, flaky browsers). On Latchkey managed runners they are detected, retried, and self-healed instead of failing your build:

Dependency installs

This workflow runs 4 jobs (6 with the matrix expanded) per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow

actions/checkout actions/setup-node