add preview into active sessions

sesh/main.go

@@ -92,6 +92,12 @@ func main() {
 	}
 	slices.Sort(seshNames)
 
+	printSeshContents := func(name string) (content string, ok bool) {
+		cmd := exec.Command(tmux, "capture-pane", "-epN", "-t", name)
+		stdout, err := cmd.Output()
+		return string(stdout), err == nil
+	}
+
 	options := []fuzzyfinder.Option{
 		fuzzyfinder.WithPreviewWindow(
 			func(i, width, height int) string {
@@ -100,6 +106,10 @@ func main() {
 					return ""
 				}
 				seshName := seshNames[i]
+				content, ok := printSeshContents(seshName)
+				if ok {
+					return content
+				}
 				windows, _ := config[seshName]
 				builder := strings.Builder{}
 				for _, window := range windows {