Improve command loading

cmd/ls.go

@@ -1,5 +1,24 @@
 package lumecmd
 
+import "flag"
+
+func NewCmdLs() Command {
+	return Command{
+		Name: "ls",
+		Func: LsCmd,
+		Flags: func() *flag.FlagSet {
+			fs := flag.NewFlagSet("ls", flag.ExitOnError)
+
+			selector := fs.String("selector", defaultSelector, "Set the selector")
+			fs.StringVar(selector, "s", defaultSelector, "Set the selector")
+
+			return fs
+		}(),
+		Use:   "[--selector=<selector>]",
+		Short: "List the lights",
+	}
+}
+
 func LsCmd(args CmdArgs) (int, error) {
 	c := args.Client
 	selector := args.Flags.String("selector")