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cli ​

Run a Go program as a one-shot CLI process. The app exits automatically when your logic finishes.

Installation ​

sh
go get github.com/go-minstack/go-minstack/cli

Usage ​

Implement cli.ConsoleApp and register it with app.Provide:

go
type App struct{ log *slog.Logger }

func NewApp(log *slog.Logger) cli.ConsoleApp { return &App{log: log} }

func (a *App) Run(ctx context.Context) error {
    a.log.Info("Hello!")
    return nil
}

func main() {
    app := core.New(cli.Module())
    app.Provide(NewApp)
    app.Run()
}

With a database ​

go
type App struct{ db *gorm.DB }

func NewApp(db *gorm.DB) cli.ConsoleApp { return &App{db: db} }

func (a *App) Run(ctx context.Context) error {
    // query, migrate, seed...
    return nil
}

func migrate(db *gorm.DB) error {
    return db.AutoMigrate(&User{})
}

func main() {
    app := core.New(cli.Module(), sqlite.Module())
    app.Provide(NewApp)
    app.Invoke(migrate)
    app.Run()
}

API ​

cli.ConsoleApp ​

go
type ConsoleApp interface {
    Run(ctx context.Context) error
}

cli.Module() fx.Option ​

Wires the console runner into the fx lifecycle. The process exits when Run returns.

Constraints ​

  • One ConsoleApp per process
  • If Run returns a non-nil error, the process exits with code 1