From d04969ffa53ce5f62efbfe02a85cfc12ec6097d6 Mon Sep 17 00:00:00 2001
From: Graham Christensen <graham@floxdev.com>
Date: Mon, 12 Apr 2021 12:36:14 -0400
Subject: [PATCH] EvalSettings::getDefaultNixPath: respect {restrict,pure}Eval

Otherwise Nix may look to invalid locations for channels.
---
 src/libexpr/eval.cc | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc
index 3afe2e47b..936bccc8c 100644
--- a/src/libexpr/eval.cc
+++ b/src/libexpr/eval.cc
@@ -2091,9 +2091,12 @@ Strings EvalSettings::getDefaultNixPath()
         }
     };
 
-    add(getHome() + "/.nix-defexpr/channels");
-    add(settings.nixStateDir + "/profiles/per-user/root/channels/nixpkgs", "nixpkgs");
-    add(settings.nixStateDir + "/profiles/per-user/root/channels");
+    if (!evalSettings.restrictEval && !evalSettings.pureEval) {
+        add(getHome() + "/.nix-defexpr/channels");
+        add(settings.nixStateDir + "/profiles/per-user/root/channels/nixpkgs", "nixpkgs");
+        add(settings.nixStateDir + "/profiles/per-user/root/channels");
+    }
+
     return res;
 }