feat: add dir option

cmd/gterm/main.go

@@ -31,6 +31,7 @@ var (
 	flagAppName  string
 	flagAddr     string
 	flagShell    string
+	flagDir      string
 	flagLogLevel int
 	flagDev      bool
 	flagVer      bool
@@ -42,6 +43,7 @@ func init() {
 	flag.StringVar(&flagAppName, "name", "gterm", "the application title")
 	flag.StringVar(&flagAddr, "addr", ":8000", "address to bind")
 	flag.StringVar(&flagShell, "shell", "bash", "the shell behind")
+	flag.StringVar(&flagDir, "dir", ".", "the working dir")
 	flag.Var(&flagArgs, "arg", "additional args to pass to cmd")
 	flag.BoolVar(&flagDev, "dev", false, "is development mode")
 	flag.IntVar(&flagLogLevel, "log-level", 9, "log level")
@@ -73,6 +75,7 @@ func main() {
 	g.AppName = flagAppName
 	g.Cmd = flagShell
 	g.Args = flagArgs
+	g.Dir = flagDir
 
 	server := &http.Server{
 		Addr:    flagAddr,

gterm.go

@@ -42,6 +42,8 @@ type GTerm struct {
 	Args []string
 	// Command is the path to the binary we should create a TTY for
 	Cmd string
+	// Dir working dir
+	Dir string
 	// Envs env pairs to pass to the command
 	Envs []string
 	// ErrorLimit defines the number of consecutive errors that can happen
@@ -145,6 +147,9 @@ func (g *GTerm) WS(w http.ResponseWriter, r *http.Request) {
 
 	cmd := exec.Command(g.Cmd, g.Args...)
 	cmd.Env = g.Envs
+	if g.Dir != "" && g.Dir != "." {
+		cmd.Dir = g.Dir
+	}
 	tty, err := pty.Start(cmd)
 	if err != nil {
 		l.Error(err)