add short and long descriptions of the commands

cmd/command.go

@@ -28,6 +28,8 @@ type Command struct {
 	Func  func(CmdArgs) (int, error)
 	Flags *flag.FlagSet
 	Use   string
+	Short string
+	Long  string
 }
 
 var commandRegistry = make(map[string]Command)

cmd/ls.go

@@ -18,6 +18,7 @@ func init() {
 		Func:  LsCmd,
 		Flags: fs,
 		Use:   "[--selector=<selector>",
+		Short: "List the lights",
 	})
 }
 

cmd/setcolor.go

@@ -43,6 +43,7 @@ func init() {
 		Func:  SetColorCmd,
 		Flags: fs,
 		Use:   "[--selector <selector>] [--power (on|off)] [--hue <hue>] [--saturation <saturation>] [--rgb <rbg>] [--name <color>] [--brightness <brightness>] [--duration <sec>] [--fast]",
+		Short: "Set the color",
 	})
 }
 

cmd/setstate.go

@@ -36,6 +36,7 @@ func init() {
 		Func:  SetStateCmd,
 		Flags: fs,
 		Use:   "[--selector <selector>] [--power (on|off)] [--color <color>] [--brightness <brightness>] [--duration <sec>] [--infrared <infrared>] [--fast]",
+		Short: "Set various state attributes",
 	})
 }
 

cmd/setwhite.go

@@ -39,6 +39,7 @@ func init() {
 		Func:  SetWhiteCmd,
 		Flags: fs,
 		Use:   "[--selector <selector>] [--power (on|off)] [--kelvin <kelvin>] [--name <color>] [--brightness <brightness>] [--duration <sec>] [--infrared] [--fast]",
+		Short: "Set the white level",
 	})
 }
 

cmd/toggle.go

@@ -19,6 +19,7 @@ func init() {
 		Func:  ToggleCmd,
 		Flags: fs,
 		Use:   "[--selector <selector>] [--duration <sec>]",
+		Short: "Toggle the power on/off",
 	})
 }