From 11e7d3ef56f542e70f138069fe9b95401c2143c8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Domen=20Ko=C5=BEar?= <domen@dev.si>
Date: Fri, 19 Apr 2024 08:26:15 +0100
Subject: [PATCH] #1145: don't propagate --impure to gc

---
 devenv/src/command.rs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/devenv/src/command.rs b/devenv/src/command.rs
index e58fc353e..f042f2bc0 100644
--- a/devenv/src/command.rs
+++ b/devenv/src/command.rs
@@ -146,7 +146,12 @@ impl App {
             if self.cli.impure || self.config.impure {
                 // only pass the impure option to the nix command that supports it.
                 // avoid passing it to the older utilities, e.g. like `nix-store` when creating GC roots.
-                if command == "nix" {
+                if command == "nix"
+                    && args
+                        .first()
+                        .map(|arg| arg == &"build" || arg == &"eval" || arg == &"print-dev-env")
+                        .unwrap_or(false)
+                {
                     flags.push("--impure");
                 }
                 // set a dummy value to overcome https://github.com/NixOS/nix/issues/10247