Format Code workflow (rogchap/v8go)

The Format Code workflow from rogchap/v8go, explained and optimized by Latchkey.

What it does

This is the Format Code workflow from the rogchap/v8go repository, a real project running GitHub Actions. It is shown here with attribution under its BSD-3-Clause license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

name: Format Code

on: [pull_request, workflow_dispatch]

jobs:
    build:
        runs-on: ubuntu-latest
        steps:
            - name: Checkout
              uses: actions/checkout@v2
            - run: go fmt
            - name: go generate (clang-format)
              run: go generate
            - name: Display missing format changes
              run: git diff --exit-code

The same workflow, on Latchkey

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

name: Format Code
 
on: [pull_request, workflow_dispatch]
 
concurrency:
    group: ${{ github.workflow }}-${{ github.ref }}
    cancel-in-progress: true
 
jobs:
    build:
        timeout-minutes: 30
        runs-on: latchkey-small
        steps:
            - name: Checkout
              uses: actions/checkout@v2
            - run: go fmt
            - name: go generate (clang-format)
              run: go generate
            - name: Display missing format changes
              run: git diff --exit-code
 

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• Cancel superseded runs when a branch or PR gets a newer push.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

This workflow runs 1 job per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow