From d234d01f010e99c1519b849dd50a502a8af7ede1 Mon Sep 17 00:00:00 2001
From: Alyssa Ross <hi@alyssa.is>
Date: Tue, 20 Sep 2022 11:01:40 +0000
Subject: [PATCH] nix repl: warn if creating dir for history fails

The history is not critical to the functionality of nix repl, so it's
enough to warn here, rather than refuse to start if the directory Nix
thinks the history should live in can't be created.
---
 src/libcmd/repl.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/libcmd/repl.cc b/src/libcmd/repl.cc
index 150bd42ac..61c05050f 100644
--- a/src/libcmd/repl.cc
+++ b/src/libcmd/repl.cc
@@ -242,7 +242,11 @@ void NixRepl::mainLoop()
 
     // Allow nix-repl specific settings in .inputrc
     rl_readline_name = "nix-repl";
-    createDirs(dirOf(historyFile));
+    try {
+        createDirs(dirOf(historyFile));
+    } catch (SysError & e) {
+        logWarning(e.info());
+    }
 #ifndef READLINE
     el_hist_size = 1000;
 #endif