PR Validate workflow (ctrlplusb/easy-peasy)

The PR Validate workflow from ctrlplusb/easy-peasy, explained and optimized by Latchkey.

What it does

This is the PR Validate workflow from the ctrlplusb/easy-peasy 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: PR Validate

on:
  pull_request:
    branches:
      - master

jobs:
  code-quality:
    name: Code Quality
    strategy:
      matrix:
        command:
          - lint
          - dtslint
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: ./.github/actions/prepare
      - shell: bash
        run: yarn ${{ matrix.command }}

  test:
    name: Test & Coverage
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: ./.github/actions/prepare
      - shell: bash
        run: yarn test:coverage
      - uses: codecov/codecov-action@v5
        with:
          fail_ci_if_error: false

The same workflow, on Latchkey

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

name: PR Validate
 
on:
  pull_request:
    branches:
      - master
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  code-quality:
    timeout-minutes: 30
    name: Code Quality
    strategy:
      matrix:
        command:
          - lint
          - dtslint
    runs-on: latchkey-small
    steps:
      - uses: actions/checkout@v4
      - uses: ./.github/actions/prepare
      - shell: bash
        run: yarn ${{ matrix.command }}
 
  test:
    timeout-minutes: 30
    name: Test & Coverage
    runs-on: latchkey-small
    steps:
      - uses: actions/checkout@v4
      - uses: ./.github/actions/prepare
      - shell: bash
        run: yarn test:coverage
      - uses: codecov/codecov-action@v5
        with:
          fail_ci_if_error: false
 

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• Cancel superseded runs when a branch or PR gets a newer push.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.

1 third-party action is referenced by a movable tag. Pin it to the commit SHA (Latchkey resolves and applies this automatically) so a repointed tag cannot change what runs.

This workflow runs 2 jobs (3 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