From 7c3b4f72b81d8b5a7d0a6e7534c71e5104833bf1 Mon Sep 17 00:00:00 2001
From: Kamil Monicz <kamil@monicz.dev>
Date: Mon, 5 Jan 2026 18:23:03 +0100
Subject: [PATCH] Remove regex from isNixCommand

---
 src/nix/main.cc | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/nix/main.cc b/src/nix/main.cc
index 93c1dc42a..811d1c495 100644
--- a/src/nix/main.cc
+++ b/src/nix/main.cc
@@ -27,7 +27,6 @@
 #include "cli-config-private.hh"
 
 #include <sys/types.h>
-#include <regex>
 #include <nlohmann/json.hpp>
 
 #ifndef _WIN32
@@ -501,7 +500,7 @@ void mainWrapped(int argc, char ** argv)
     });
 
     try {
-        auto isNixCommand = std::regex_search(programName, std::regex("nix$"));
+        auto isNixCommand = programName.ends_with("nix");
         auto allowShebang = isNixCommand && argc > 1;
         args.parseCmdline(argvToStrings(argc, argv), allowShebang);
     } catch (UsageError &) {