Add a command for validateColor API

cmd/main.go

@@ -20,6 +20,7 @@ func init() {
 	RegisterCommand(NewCmdToggle())
 	RegisterCommand(NewCmdVersion())
 	RegisterCommand(NewCmdBreathe())
+	RegisterCommand(NewCmdValidate())
 }
 
 var Version string

cmd/validate.go

@@ -0,0 +1,48 @@
+package lumecmd
+
+import (
+	"errors"
+	"flag"
+	"fmt"
+
+	"git.kill0.net/chill9/lifx-go"
+)
+
+func NewCmdValidate() Command {
+	return Command{
+		Name: "validate",
+		Func: ValidateCmd,
+		Flags: func() *flag.FlagSet {
+			fs := flag.NewFlagSet("validate", flag.ExitOnError)
+
+			return fs
+		}(),
+		Use:   "<command>",
+		Short: "Validate a color string",
+	}
+}
+
+func ValidateCmd(ctx Context) (int, error) {
+	c := ctx.Client
+
+	if len(ctx.Args) != 1 {
+		printCmdHelp(ctx.Name)
+		return ExitFailure, nil
+	}
+
+	color := lifx.NamedColor(ctx.Args[0])
+
+	i, err := c.ValidateColor(color)
+	if err != nil {
+		return ExitFailure, err
+	}
+
+	if validColor, ok := i.(*lifx.HSBKColor); ok {
+		fmt.Print(validColor)
+	} else {
+		return ExitFailure, errors.New("go type %T but wanted *HSBKColor")
+	}
+	fmt.Println()
+
+	return ExitSuccess, nil
+}

lume.1

@@ -90,6 +90,10 @@ Show extended details about the lights
 .Op Fl Fl simple | Fl Fl table
 .Xc
 Toggle the power
+.It Xo Ic validate
+.Ar color_string
+.Xc
+Validate a color string
 .It Xo Ic version
 .Xc
 Print the version