Go workflow (uber-go/nilaway)
The Go workflow from uber-go/nilaway, explained and optimized by Latchkey.
CI health: C - fair
Point runs-on at Latchkey and get run de-duplication, job timeouts, SHA-pinned actions, self-healing for flaky steps, and up to 58% lower cost, applied automatically.
What it does
This is the Go workflow from the uber-go/nilaway repository, a real project running GitHub Actions. It is shown here with attribution under its Apache-2.0 license.
Below, Latchkey shows a faster, safer version produced by its optimization engine.
The workflow
name: Go
on:
push:
branches: [ main ]
pull_request:
jobs:
lint:
name: Lint
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v6
name: Check out repository
- name: Set up Go
uses: actions/setup-go@v6
with:
go-version: 1.25.x
cache: false
- name: Read golangci-lint version from .golangci.version
id: golangci-version
run: echo "GOLANGCI_VERSION=$(cat .golangci.version)" > $GITHUB_OUTPUT
# We do not really run golangci-lint here (hence we use the -h flag). We just use the
# golangci-lint action to install it and reuses its internal caching infrastructure.
# The actual execution is done in the Lint job (together with other custom linting tasks).
- uses: golangci/golangci-lint-action@v9
name: Install golangci-lint
with:
version: v${{ steps.golangci-version.outputs.GOLANGCI_VERSION }}
args: -h
- name: Symlink installed golangci-lint to bin directory
run: mkdir -p bin && ln -s $(which golangci-lint) bin/golangci-lint
- run: make lint
name: Lint
test:
name: Test
runs-on: ubuntu-latest
strategy:
matrix:
go: [ "1.25.x", "1.26.x" ]
steps:
- uses: actions/checkout@v6
- name: Set up Go
uses: actions/setup-go@v6
with:
go-version: ${{ matrix.go }}
cache: true
- name: Load cached dependencies
uses: actions/cache@v5
with:
path: ~/go/pkg/mod
key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
- name: Download dependencies
run: go mod download
- name: Build
run: make build
- name: Test and generate coverage report
run: make cover
- name: Upload coverage to codecov.io
uses: codecov/codecov-action@v6
with:
token: ${{ secrets.CODECOV_TOKEN }}
integration-test:
name: Integration Test
runs-on: ubuntu-latest
strategy:
matrix:
go: [ "1.25.x", "1.26.x" ]
steps:
- uses: actions/checkout@v6
- name: Set up Go
uses: actions/setup-go@v6
with:
go-version: ${{ matrix.go }}
cache: true
- name: Load cached dependencies
uses: actions/cache@v5
with:
path: ~/go/pkg/mod
key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
- name: Download dependencies
run: go mod download
- name: Run integration tests
run: make integration-test
The same workflow, on Latchkey
Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.
name: Go on: push: branches: [ main ] pull_request: concurrency: group: ${{ github.workflow }}-${{ github.ref }} cancel-in-progress: true jobs: lint: timeout-minutes: 30 name: Lint runs-on: latchkey-small steps: - uses: actions/checkout@v6 name: Check out repository - name: Set up Go uses: actions/setup-go@v6 with: go-version: 1.25.x cache: false - name: Read golangci-lint version from .golangci.version id: golangci-version run: echo "GOLANGCI_VERSION=$(cat .golangci.version)" > $GITHUB_OUTPUT # We do not really run golangci-lint here (hence we use the -h flag). We just use the # golangci-lint action to install it and reuses its internal caching infrastructure. # The actual execution is done in the Lint job (together with other custom linting tasks). - uses: golangci/golangci-lint-action@v9 name: Install golangci-lint with: version: v${{ steps.golangci-version.outputs.GOLANGCI_VERSION }} args: -h - name: Symlink installed golangci-lint to bin directory run: mkdir -p bin && ln -s $(which golangci-lint) bin/golangci-lint - run: make lint name: Lint test: timeout-minutes: 30 name: Test runs-on: latchkey-small strategy: matrix: go: [ "1.25.x", "1.26.x" ] steps: - uses: actions/checkout@v6 - name: Set up Go uses: actions/setup-go@v6 with: go-version: ${{ matrix.go }} cache: true - name: Load cached dependencies uses: actions/cache@v5 with: path: ~/go/pkg/mod key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }} - name: Download dependencies run: go mod download - name: Build run: make build - name: Test and generate coverage report run: make cover - name: Upload coverage to codecov.io uses: codecov/codecov-action@v6 with: token: ${{ secrets.CODECOV_TOKEN }} integration-test: timeout-minutes: 30 name: Integration Test runs-on: latchkey-small strategy: matrix: go: [ "1.25.x", "1.26.x" ] steps: - uses: actions/checkout@v6 - name: Set up Go uses: actions/setup-go@v6 with: go-version: ${{ matrix.go }} cache: true - name: Load cached dependencies uses: actions/cache@v5 with: path: ~/go/pkg/mod key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }} - name: Download dependencies run: go mod download - name: Run integration tests run: make integration-test
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 useslatchkey-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.
2 third-party actions are referenced by a movable tag. Pin them to the commit SHA (Latchkey resolves and applies this automatically) so a repointed tag cannot change what runs.
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 3 jobs (5 with the matrix expanded) per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.