From a694cfb7bd6fadc9b0c385551c0255ec5c0da068 Mon Sep 17 00:00:00 2001
From: Rebecca Turner <rbt@sent.as>
Date: Tue, 13 Feb 2024 11:09:12 -0800
Subject: [PATCH] Fix "Failed tcsetattr(TCSADRAIN)" when `nix repl` is not a
 TTY

Before:
```
$ echo builtins.nixVersion | nix repl
Welcome to Nix 2.18.1. Type :? for help.

Failed tcsetattr(TCSADRAIN): Inappropriate ioctl for device
"2.18.1"

Failed tcsetattr(TCSADRAIN): Inappropriate ioctl for device
```

After:
```
$ echo builtins.nixVersion | nix repl
Nix 2.21.0pre20240131_dirty
Type :? for help.
"2.21.0pre20240131_dirty"
```
---
 src/libcmd/repl.cc | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/libcmd/repl.cc b/src/libcmd/repl.cc
index 26b032693..a7cd15efe 100644
--- a/src/libcmd/repl.cc
+++ b/src/libcmd/repl.cc
@@ -351,7 +351,6 @@ bool NixRepl::getLine(std::string & input, const std::string & prompt)
     };
 
     setupSignals();
-    Finally resetTerminal([&]() { rl_deprep_terminal(); });
     char * s = readline(prompt.c_str());
     Finally doFree([&]() { free(s); });
     restoreSignals();