main workflow (webpack/webpack-bundle-analyzer)

The main workflow from webpack/webpack-bundle-analyzer, explained and optimized by Latchkey.

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Source: webpack/webpack-bundle-analyzer.github/workflows/main.ymlLicense MITView source

What it does

This is the main workflow from the webpack/webpack-bundle-analyzer 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: main
on:
  push:
    branches:
      - main
  pull_request:
jobs:
  build-and-test:
    strategy:
      fail-fast: false
      matrix:
        node:
          - version: 20.x
          - version: 22.x
          - version: 24.x
    runs-on: ubuntu-22.04
    name: Tests on Node.js v${{ matrix.node.version }}
    steps:
      - name: Checkout repo
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Setup node
        uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
        with:
          node-version: ${{ matrix.node.version }}
          cache: npm

      - name: Install dependencies
        run: npm ci

      - name: Build sources
        run: ${{ matrix.node.env }} npm run build

      - name: Run tests
        run: ${{ matrix.node.env }} npm run test:coverage

      - name: Codecov
        uses: codecov/codecov-action@671740ac38dd9b0130fbe1cec585b89eea48d3de # v5.5.2
        env:
          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

  lint:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repo
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Setup node
        uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
        with:
          node-version: "22.x"
          cache: npm

      - name: Install dependencies
        run: npm ci

      - name: Build sources
        run: npm run build

      - name: Run lint
        run: npm run lint

The same workflow, on Latchkey

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

name: main
on:
  push:
    branches:
      - main
  pull_request:
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  build-and-test:
    timeout-minutes: 30
    strategy:
      fail-fast: false
      matrix:
        node:
          - version: 20.x
          - version: 22.x
          - version: 24.x
    runs-on: latchkey-small
    name: Tests on Node.js v${{ matrix.node.version }}
    steps:
      - name: Checkout repo
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
      - name: Setup node
        uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
        with:
          node-version: ${{ matrix.node.version }}
          cache: npm
 
      - name: Install dependencies
        run: npm ci
 
      - name: Build sources
        run: ${{ matrix.node.env }} npm run build
 
      - name: Run tests
        run: ${{ matrix.node.env }} npm run test:coverage
 
      - name: Codecov
        uses: codecov/codecov-action@671740ac38dd9b0130fbe1cec585b89eea48d3de # v5.5.2
        env:
          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 
  lint:
    timeout-minutes: 30
    runs-on: latchkey-small
    steps:
      - name: Checkout repo
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
      - name: Setup node
        uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
        with:
          node-version: "22.x"
          cache: npm
 
      - name: Install dependencies
        run: npm ci
 
      - name: Build sources
        run: npm run build
 
      - name: Run lint
        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 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.

Actions used in this workflow

actions/checkout actions/setup-node codecov/codecov-action