Introduced WAIT_EXIT_TIMEOUT to provide auto-exit without user input.

Author: tvrzna

README.md

@@ -132,6 +132,9 @@ Command to be used to perform reboot. Default value is "reboot".
 `CMD_SUSPEND`
 Command to be used to perform suspend. Default value is blank, but it tries to use "systemctl suspend", "loginctl suspend" or "zzz".
 
+`WAIT_EXIT_TIMEOUT`
+Timeout in seconds before emptty automatically exits. If value is 0 or lower, there is no timeout. Default value is -1.
+
 #### Commands
 If commands are allowed and default user is not defined, there could be used commands in login input or desktop selection. All of these commands need to start with colon `:`. Escape characters are ignored to prevent issues with muscle memory from VI.
  - `:help`, `:?` prints available commands

res/emptty.1

@@ -1,4 +1,4 @@
-.TH EMPTTY 1 "December 2025" "emptty 0.15.0" emptty
+.TH EMPTTY 1 "March 2026" "emptty 0.15.0" emptty
 
 .SH NAME
 emptty \- Dead simple CLI Display Manager on TTY
@@ -199,6 +199,9 @@ Command to be used to perform reboot. Default value is "reboot".
 .IP CMD_SUSPEND
 Command to be used to perform suspend. Default value is blank, but it tries to use "systemctl suspend", "loginctl suspend" or "zzz".
 
+.IP WAIT_EXIT_TIMEOUT
+Timeout in seconds before emptty automatically exits. If value is 0 or lower, there is no timeout. Default value is -1.
+
 .SH COMMANDS
 If commands are allowed and default user is not defined, there could be used commands in login input. All of these commands need to start with colon ":". Escape characters are ignored to prevent issues with muscle memory from VI.
  - :help, :? - prints available commands

res/testing/conf

@@ -35,4 +35,5 @@ XORG_SESSIONS_PATH=/dev/null
 WAYLAND_SESSIONS_PATH=/dev/zero
 SELECT_LAST_USER=per-tty
 AUTO_SELECTION=true
-DEFAULT_ENV=wayland
+DEFAULT_ENV=wayland
+WAIT_EXIT_TIMEOUT=3

src/config.go

@@ -42,6 +42,7 @@ type config struct {
 	AutologinMaxRetry   int              `config:"AUTOLOGIN_MAX_RETRY" parser:"ParseInt" string:"StringInt" default:"2"`
 	AutologinRtryPeriod int              `config:"AUTOLOGIN_RETRY_PERIOD" parser:"ParsePositiveInt" string:"StringInt" default:"2"`
 	Tty                 int              `config:"TTY_NUMBER" parser:"ParseTTY" string:"StringInt" default:"7"`
+	WaitExitTimeout     int              `config:"WAIT_EXIT_TIMEOUT" parser:"ParseWaitExitTimeout" default:"-1"`
 	DefaultUser         string           `config:"DEFAULT_USER" parser:"SanitizeValue" default:""`
 	DefaultSession      string           `config:"DEFAULT_SESSION" parser:"SanitizeValue" default:""`
 	AutologinSession    string           `config:"AUTOLOGIN_SESSION" parser:"SanitizeValue" default:""`
@@ -64,6 +65,8 @@ type config struct {
 	CmdSuspend          string           `config:"CMD_SUSPEND" parser:"SanitizeValue" default:""`
 }
 
+var cfgWaitExitTimeout = -1
+
 // LoadConfig handles loading of application configuration.
 func loadConfig(path string) *config {
 	c := config{}
@@ -152,6 +155,12 @@ func (c *config) ParseInt(value, defaultValue string) int {
 	return result
 }
 
+// Parses int value for wait exit timeout and sets it into global variable.
+func (c *config) ParseWaitExitTimeout(value, defaultValue string) int {
+	cfgWaitExitTimeout = c.ParseInt(value, defaultValue)
+	return cfgWaitExitTimeout
+}
+
 // Parses only positive int value from string.
 func (c *config) ParsePositiveInt(value, defaultValue string) int {
 	result, _ := strconv.Atoi(sanitizeValue(value, defaultValue))

src/config_test.go

@@ -176,6 +176,10 @@ func TestLoadConfig(t *testing.T) {
 	if conf.DefaultEnv != defaultEnvValue && defaultEnvValue != Wayland {
 		t.Error("TestLoadConfig: DEFAULT_ENV value is not correct")
 	}
+
+	if conf.WaitExitTimeout != 3 || cfgWaitExitTimeout != 3 {
+		t.Error("TestLoadConfig: WAIT_EXIT_TIMEOUT value is not correct")
+	}
 }
 
 func TestLangLoadConfig(t *testing.T) {

src/utils.go

@@ -12,6 +12,7 @@ import (
 	"strconv"
 	"strings"
 	"syscall"
+	"time"
 	"unsafe"
 )
 
@@ -537,9 +538,40 @@ func chvt(tty int) bool {
 }
 
 func waitForReturnToExit(code int) {
-	fmt.Printf("\nPress Enter to continue...")
-	if !TEST_MODE {
-		bufio.NewReader(os.Stdin).ReadString('\n')
-		os.Exit(code)
+	if TEST_MODE {
+		fmt.Printf("\nPress Enter to continue...")
+	} else {
+		remainingTimeout := cfgWaitExitTimeout
+		if remainingTimeout <= 0 {
+			fmt.Printf("\nPress Enter to continue...")
+			bufio.NewReader(os.Stdin).ReadString('\n')
+			os.Exit(code)
+			return
+		}
+
+		fmt.Printf("\nPress Enter to continue or wait %d seconds...", remainingTimeout)
+
+		inputDone := make(chan struct{})
+
+		go func() {
+			bufio.NewReader(os.Stdin).ReadString('\n')
+			close(inputDone)
+		}()
+
+		ticker := time.NewTicker(time.Second)
+		defer ticker.Stop()
+
+		for {
+			select {
+			case <-inputDone:
+				os.Exit(code)
+			case <-ticker.C:
+				remainingTimeout--
+				fmt.Printf("\r\033[KPress Enter to continue or wait %d seconds...", remainingTimeout)
+				if remainingTimeout <= 0 {
+					os.Exit(code)
+				}
+			}
+		}
 	}
 }