From ed72bf64097b177ee734a604be37595322654acd Mon Sep 17 00:00:00 2001
From: Daiderd Jordan <daiderd@gmail.com>
Date: Sat, 13 Jan 2018 14:51:36 +0100
Subject: [PATCH] bash: don't setup environment in a nix-shell

---
 modules/programs/bash.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modules/programs/bash.nix b/modules/programs/bash.nix
index dc58af41..ee133772 100644
--- a/modules/programs/bash.nix
+++ b/modules/programs/bash.nix
@@ -72,6 +72,9 @@ in
       if [ -n "$__ETC_BASHRC_SOURCED" -o -n "$NOSYSBASHRC" ]; then return; fi
       __ETC_BASHRC_SOURCED=1
 
+      # Don't execute this file when running in a pure nix-shell.
+      if test -n "$IN_NIX_SHELL"; then return; fi
+
       export PATH=${config.environment.systemPath}
       ${config.system.build.setEnvironment.text}
       ${config.system.build.setAliases.text}