allow passing the command directly.

go/qst.go

@@ -38,6 +38,7 @@ var mappings = map[string]func(string) string{
var delay = flag.Duration("delay", 1*time.Second, "time to wait until restart")
var autoRestart = flag.Bool("autorestart", true, "restart after command exists")
var command = flag.String("command", "", "command to run ({file} will be substituted)")
func main() {
	log.SetFlags(log.Ldate | log.Ltime | log.Lshortfile)
@@ -61,13 +62,20 @@ func main() {
		os.Exit(1)
	}
	ext := path.Ext(file)
	fn, found := mappings[ext]
	if !found {
		log.Fatalf("error: no mapping found for `%s'", file)
	var cmd string
	if command != nil && strings.TrimSpace(*command) != "" {
		cmd = strings.Replace(*command, "{file}", file, -1)
	} else {
		ext := path.Ext(file)
		fn, found := mappings[ext]
		if !found {
			log.Fatalf("error: no mapping found for `%s'", file)
		}
		cmd = fn(file)
	}
	log.Printf("command to run: `%s'", cmd)
	runner := &Runner{nil, fn(file), false, *autoRestart}
	runner := &Runner{nil, cmd, false, *autoRestart}
	go runCmd(file, runner)
	c := make(chan os.Signal, 1)