connect: fix terminal after executing os.exit()

Fixed terminal brake after os.exit() in tt connect session.
Have done it by adding workaround for the bug(c-bata/go-prompt#228)
in case of executing os.exit().

Closes #425

CHANGELOG.md

@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 - ``--dynamic`` option for `tt install tarantool` command to build non-static tarantool executable.
 
+### Fixed
+
+- ``tt connect`` command does not break a console after executing `os.exit()` command anymore.
+
 ## [1.0.2] - 2023-04-21
 
 ### Fixed

cli/connect/console.go

@@ -166,6 +166,11 @@ func (console *Console) Close() {
 	if console.conn != nil {
 		console.conn.Close()
 	}
+	// Workaround bug https://github.com/c-bata/go-prompt/issues/228
+	rawModeOff := exec.Command("/bin/stty", "-raw", "echo")
+	rawModeOff.Stdin = os.Stdin
+	_ = rawModeOff.Run()
+	rawModeOff.Wait()
 }
 
 func loadHistory(console *Console) error {
@@ -247,6 +252,7 @@ func getExecutor(console *Console) prompt.Executor {
 		var data string
 		if _, err := console.conn.Eval(consoleEvalFuncBody, args, opts); err != nil {
 			if err == io.EOF {
+				console.Close()
 				log.Fatalf("Connection was closed. Probably instance process isn't running anymore")
 			} else {
 				log.Fatalf("Failed to execute command: %s", err)