From 7ccdc98a5f7d3dfc4a1fe82efa08c206008c81e1 Mon Sep 17 00:00:00 2001
From: Michael Yang <mxyng@pm.me>
Date: Sat, 21 Dec 2024 00:08:12 -0800
Subject: [PATCH] fix: only add to history of different

if the last item in history is the same as the one being added, skip it.
this reduces the number of history entries. the behaviour is similar to
how most shells maintain history
---
 readline/history.go | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/readline/history.go b/readline/history.go
index bf3cafe25..b3661e29b 100644
--- a/readline/history.go
+++ b/readline/history.go
@@ -81,11 +81,13 @@ func (h *History) Init() error {
 }
 
 func (h *History) Add(s string) {
-	h.Buf.Add(s)
-	h.Compact()
-	h.Pos = h.Size()
-	if h.Autosave {
-		_ = h.Save()
+	if latest, _ := h.Buf.Get(h.Size() - 1); latest != s {
+		h.Buf.Add(s)
+		h.Compact()
+		h.Pos = h.Size()
+		if h.Autosave {
+			_ = h.Save()
+		}
 	}
 }