ci workflow (expressjs/body-parser)

The ci workflow from expressjs/body-parser, explained and optimized by Latchkey.

CI health: D - needs work

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Source: expressjs/body-parser.github/workflows/ci.ymlLicense MITView source

What it does

This is the ci workflow from the expressjs/body-parser 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:
    branches:
      - master
    paths-ignore:
      - '*.md'
  pull_request:
    paths-ignore:
      - '*.md'
permissions:
  contents: read

jobs:
  lint:
    name: Lint
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0

      - name: Install Node.js
        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
        with:
          node-version: 'lts/*'

      - name: Install Node.js dependencies
        run: npm install --ignore-scripts --include=dev

      - name: Lint code
        run: npm run lint

  test:
    name: Test - Node.js ${{ matrix.node-version }}
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        node-version: [18.0.0, 18, 19, 20, 21, 22, 23, 24, 25, 26]

    steps:
      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0

      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
        with:
          node-version: ${{ matrix.node-version }}
          check-latest: true

      - name: Install Node.js dependencies
        run: npm install

      - name: Run tests
        run: npm run test-ci

      - name: Upload code coverage
        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: coverage-node-${{ matrix.node-version }}
          path: ./coverage/lcov.info
          retention-days: 1

  coverage:
    needs: test
    runs-on: ubuntu-latest
    permissions:
      contents: read
      checks: write
    steps:
      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0

      - name: Install lcov
        shell: bash
        run: sudo apt-get -y install lcov

      - name: Collect coverage reports
        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          path: ./coverage
          pattern: coverage-node-*

      - name: Merge coverage reports
        shell: bash
        run: find ./coverage -name lcov.info -exec printf '-a %q\n' {} \; | xargs lcov -o ./lcov.info

      - name: Upload coverage report
        uses: coverallsapp/github-action@648a8eb78e6d50909eff900e4ec85cab4524a45b # v2.3.6
        with:
          file: ./lcov.info

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:
      - master
    paths-ignore:
      - '*.md'
  pull_request:
    paths-ignore:
      - '*.md'
permissions:
  contents: read
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  lint:
    timeout-minutes: 30
    name: Lint
    runs-on: latchkey-small
    steps:
      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
      - name: Install Node.js
        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
        with:
          cache: 'npm'
          node-version: 'lts/*'
 
      - name: Install Node.js dependencies
        run: npm install --ignore-scripts --include=dev
 
      - name: Lint code
        run: npm run lint
 
  test:
    timeout-minutes: 30
    name: Test - Node.js ${{ matrix.node-version }}
    runs-on: latchkey-small
    strategy:
      fail-fast: false
      matrix:
        node-version: [18.0.0, 18, 19, 20, 21, 22, 23, 24, 25, 26]
 
    steps:
      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
        with:
          cache: 'npm'
          node-version: ${{ matrix.node-version }}
          check-latest: true
 
      - name: Install Node.js dependencies
        run: npm install
 
      - name: Run tests
        run: npm run test-ci
 
      - name: Upload code coverage
        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: coverage-node-${{ matrix.node-version }}
          path: ./coverage/lcov.info
          retention-days: 1
 
  coverage:
    timeout-minutes: 30
    needs: test
    runs-on: latchkey-small
    permissions:
      contents: read
      checks: write
    steps:
      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
      - name: Install lcov
        shell: bash
        run: sudo apt-get -y install lcov
 
      - name: Collect coverage reports
        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          path: ./coverage
          pattern: coverage-node-*
 
      - name: Merge coverage reports
        shell: bash
        run: find ./coverage -name lcov.info -exec printf '-a %q\n' {} \; | xargs lcov -o ./lcov.info
 
      - name: Upload coverage report
        uses: coverallsapp/github-action@648a8eb78e6d50909eff900e4ec85cab4524a45b # v2.3.6
        with:
          file: ./lcov.info

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.

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 3 jobs (12 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 actions/upload-artifact actions/download-artifact