Add debug output support

cmd/config.go

@@ -17,6 +17,7 @@ type Config struct {
 	OutputFormat string               `toml:"output_format"`
 	Colors       map[string][]float32 `toml:"colors"`
 	userAgent    string
+	Debug        bool `toml:"debug"`
 }
 
 var (

cmd/ls.go

@@ -35,6 +35,9 @@ func LsCmd(ctx Context) (int, error) {
 	}
 
 	lights, err := c.ListLights(selector)
+
+	Debugf("%+v\n", lights)
+
 	if err != nil {
 		return ExitFailure, err
 	}

cmd/main.go

@@ -20,11 +20,15 @@ func init() {
 	RegisterCommand(NewCmdToggle())
 	RegisterCommand(NewCmdVersion())
 	RegisterCommand(NewCmdBreathe())
+
+	flag.BoolVar(&debugFlag, "debug", false, "debug mode")
+	flag.BoolVar(&debugFlag, "d", false, "debug mode")
 }
 
 var Version string
 var BuildDate string
 var GitCommit string
+var debugFlag bool
 
 func Main(args []string) (int, error) {
 	var config *Config = GetConfig()
@@ -53,12 +57,15 @@ func Main(args []string) (int, error) {
 		return ExitFailure, fmt.Errorf("fatal: %s", err)
 	}
 
+	config.Debug = debugFlag
+
 	command := args[i]
 	i++
 
 	c := lifx.NewClient(
 		config.AccessToken,
 		lifx.WithUserAgent(config.userAgent),
+		lifx.WithDebug(debugFlag),
 	)
 
 	Context := Context{

cmd/util.go

@@ -60,3 +60,9 @@ func YesNo(v bool) string {
 	}
 	return "no"
 }
+
+func Debugf(format string, a ...interface{}) {
+	if GetConfig().Debug {
+		fmt.Printf(format, a...)
+	}
+}