Go tests workflow (moncho/dry)

The Go tests workflow from moncho/dry, explained and optimized by Latchkey.

What it does

This is the Go tests workflow from the moncho/dry 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: Go tests
on:
  push:
  pull_request:
  schedule:
    - cron: '22 10 * * *'
  workflow_dispatch:
permissions:
  contents: read
jobs:
  test:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        go:
          - { go-version: stable }
          - { go-version-file: go.mod }
        deps:
          - locked
          - latest
    steps:
      - uses: actions/checkout@v5
        with:
          persist-credentials: false
      - uses: actions/setup-go@v6
        with:
          go-version: ${{ matrix.go.go-version }}
          go-version-file: ${{ matrix.go.go-version-file }}
      - name: Test
        run: |
          if [ "${{ matrix.deps }}" = "latest" ]; then
            go get -u -t ./...
          fi
          go test -v ./...
      - name: Build
        run: go build -v ./...

The same workflow, on Latchkey

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

name: Go tests
on:
  push:
  pull_request:
  schedule:
    - cron: '22 10 * * *'
  workflow_dispatch:
permissions:
  contents: read
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  test:
    timeout-minutes: 30
    runs-on: latchkey-small
    strategy:
      fail-fast: false
      matrix:
        go:
          - { go-version: stable }
          - { go-version-file: go.mod }
        deps:
          - locked
          - latest
    steps:
      - uses: actions/checkout@v5
        with:
          persist-credentials: false
      - uses: actions/setup-go@v6
        with:
          go-version: ${{ matrix.go.go-version }}
          go-version-file: ${{ matrix.go.go-version-file }}
      - name: Test
        run: |
          if [ "${{ matrix.deps }}" = "latest" ]; then
            go get -u -t ./...
          fi
          go test -v ./...
      - name: Build
        run: go build -v ./...
 

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 (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