build workflow (ergochat/ergo)

The build workflow from ergochat/ergo, explained and optimized by Latchkey.

What it does

This is the build workflow from the ergochat/ergo 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: "build"

on:
  pull_request:
    branches:
      - "master"
      - "stable"
  push:
    branches:
      - "master"
      - "stable"

jobs:
  build:
    runs-on: "ubuntu-24.04"
    steps:
      - name: "checkout repository"
        uses: "actions/checkout@v6"
      - name: "setup go"
        uses: "actions/setup-go@v6"
        with:
          go-version: "1.26"
      - name: "install python3-pytest"
        run: "sudo apt install -y python3-pytest python3-websockets"
      - name: "make minimal"
        run: "make minimal"
      - name: "make build"
        run: "make build"
      - name: "make install"
        run: "make install"
      - name: "make test"
        run: "make test"
      - name: "make smoke"
        run: "make smoke"
      - name: "make irctest"
        run: "make irctest"

The same workflow, on Latchkey

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

name: "build"
 
on:
  pull_request:
    branches:
      - "master"
      - "stable"
  push:
    branches:
      - "master"
      - "stable"
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  build:
    timeout-minutes: 30
    runs-on: "ubuntu-24.04"
    steps:
      - name: "checkout repository"
        uses: "actions/checkout@v6"
      - name: "setup go"
        uses: "actions/setup-go@v6"
        with:
          go-version: "1.26"
      - name: "install python3-pytest"
        run: "sudo apt install -y python3-pytest python3-websockets"
      - name: "make minimal"
        run: "make minimal"
      - name: "make build"
        run: "make build"
      - name: "make install"
        run: "make install"
      - name: "make test"
        run: "make test"
      - name: "make smoke"
        run: "make smoke"
      - name: "make irctest"
        run: "make irctest"
 

What changed

• Cancel superseded runs when a branch or PR gets a newer push.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 1 job per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.