From c6f7726f48e83230246f9328115368547fe29f5f Mon Sep 17 00:00:00 2001
From: Dave Nicponski <dave.nicponski@gmail.com>
Date: Wed, 15 Jun 2022 12:49:12 -0400
Subject: [PATCH] Don't capture stdout when launching subshells in `nix repl`

---
 src/libcmd/repl.cc | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/src/libcmd/repl.cc b/src/libcmd/repl.cc
index 3c89a8ea3..588115a48 100644
--- a/src/libcmd/repl.cc
+++ b/src/libcmd/repl.cc
@@ -111,23 +111,20 @@ NixRepl::~NixRepl()
     write_history(historyFile.c_str());
 }
 
-std::string runNix(Path program, const Strings & args,
+void runNix(Path program, const Strings & args,
     const std::optional<std::string> & input = {})
 {
     auto subprocessEnv = getEnv();
     subprocessEnv["NIX_CONFIG"] = globalConfig.toKeyValue();
 
-    auto res = runProgram(RunOptions {
+    runProgram2(RunOptions {
         .program = settings.nixBinDir+ "/" + program,
         .args = args,
         .environment = subprocessEnv,
         .input = input,
     });
 
-    if (!statusOk(res.first))
-        throw ExecError(res.first, "program '%1%' %2%", program, statusToString(res.first));
-
-    return res.second;
+    return;
 }
 
 static NixRepl * curRepl; // ugly