From a066b0ad3ef44dfb3ab970ed9180c3b1c3d09df2 Mon Sep 17 00:00:00 2001
From: Weihao Zhu <134527871+zhuweihao12138@users.noreply.github.com>
Date: Wed, 10 Apr 2024 18:12:57 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8Dhistory=5Fcommands=E6=B2=A1?=
 =?UTF-8?q?=E8=AE=B0=E5=BD=95=E5=88=B0txt=E4=B8=AD=20(#39)?=
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* 修改issues#38 bug: history_command没记录到txt中

* cargo fmt规范格式
---
 src/shell/mod.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/shell/mod.rs b/src/shell/mod.rs
index b41f5af..b0ebe60 100644
--- a/src/shell/mod.rs
+++ b/src/shell/mod.rs
@@ -101,12 +101,12 @@ impl Shell {
             {
                 self.history_commands
                     .push(Rc::new(RefCell::new(command_bytes.clone())));
+                self.write_commands();
             };
             if !command_bytes.iter().all(|&byte| byte == b' ') {
                 self.exec_commands_in_line(&command_bytes);
             }
         }
-        self.write_commands();
     }
 
     fn exec_commands_in_line(&mut self, command_bytes: &Vec<u8>) {
@@ -136,7 +136,8 @@ impl Shell {
 
     fn write_commands(&self) {
         let mut file = OpenOptions::new()
-            .append(false)
+            .write(true)
+            .truncate(true)
             .open("history_commands.txt")
             .unwrap();
         for command_line in &self.history_commands {