Building a CLI Tool in Go: Part 3 - Testing & Release

// integration_test.go
package main

import (
	"os"
	"testing"

	"github.com/rogpeppe/go-internal/testscript"
)

func TestMain(m *testing.M) {
	os.Exit(testscript.RunMain(m, map[string]func() int{
		"ddd": mainReturnCode,
	}))
}

func TestCLI(t *testing.T) {
	testscript.Run(t, testscript.Params{
		Dir: "testdata/scripts",
	})
}

# testdata/scripts/scan.txtar
exec ddd scan .
stdout 'scanning'
! stderr .

-- go.mod --
module test
-- main.go --
package main

# .goreleaser.yaml
version: 2
builds:
  - env:
      - CGO_ENABLED=0
    goos:
      - linux
      - darwin
      - windows
    goarch:
      - amd64
      - arm64
    ldflags:
      - -s -w -X main.version={{.Version}}

archives:
  - formats: ['tar.gz']
    name_template: "{{ .ProjectName }}_{{ .Os }}_{{ .Arch }}"

brews:
  - repository:
      owner: fparch
      name: homebrew-tap
    homepage: "https://despairdrivendevelopment.com"
    description: "A CLI that does things"

changelog:
  sort: asc
  filters:
    exclude:
      - '^docs:'
      - '^test:'

# .github/workflows/release.yml
name: Release
on:
  push:
    tags: ['v*']

jobs:
  release:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - uses: actions/setup-go@v5
        with:
          go-version: '1.22'
      - uses: goreleaser/goreleaser-action@v6
        with:
          version: '~> v2'
          args: release --clean
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}