Use tmux session name in print command(#52)

smug.go

@@ -168,7 +168,12 @@ func (smug Smug) Start(config Config, options Options, context Context) error {
 
 func (smug Smug) GetConfigFromSession(options Options, context Context) (Config, error) {
 	config := Config{}
-	config.Session = options.Project
+
+	tmuxSession, err := smug.tmux.SessionName()
+	if err != nil {
+		return Config{}, err
+	}
+	config.Session = tmuxSession
 
 	tmuxWindows, err := smug.tmux.ListWindows(options.Project)
 	if err != nil {

smug_test.go

@@ -349,7 +349,7 @@ func TestStartStopSession(t *testing.T) {
 
 func TestPrintCurrentSession(t *testing.T) {
 	expectedConfig := Config{
-		Session: "test",
+		Session: "session_name",
 		Windows: []Window{
 			Window{
 				Name:   "win1",
@@ -366,6 +366,7 @@ func TestPrintCurrentSession(t *testing.T) {
 	}
 
 	commander := &MockCommander{[]string{}, []string{
+		"session_name",
 		"id1;win1;layout;root",
 		"root\n/tmp",
 	}}

tmux.go

@@ -115,6 +115,18 @@ func (tmux Tmux) SwitchClient(target string) error {
 	return tmux.commander.ExecSilently(cmd)
 }
 
+func (tmux Tmux) SessionName() (string, error) {
+
+	cmd := exec.Command("tmux", "display-message", "-p", "#S")
+	sessionName, err := tmux.commander.Exec(cmd)
+
+	if err != nil {
+		return sessionName, err
+	}
+
+	return sessionName, nil
+}
+
 func (tmux Tmux) ListWindows(target string) ([]TmuxWindow, error) {
 	var windows []TmuxWindow