From f12633c628c9f148762533ccd2084a01e540c4d5 Mon Sep 17 00:00:00 2001
From: Paul Colomiets <paul@colomiets.name>
Date: Sat, 12 Jul 2014 16:32:28 +0300
Subject: [PATCH] my-env: Support for running command directly by load-env-xxx
 script

First I don't think there is a reason to run shell as a child of
load-env-xxx script and not to just exec into it.

Also it's often useful to just run a command inside the environment
load-env-xxx command --args

Closes #3254
---
 pkgs/misc/my-env/loadenv.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkgs/misc/my-env/loadenv.sh b/pkgs/misc/my-env/loadenv.sh
index a162f8b853a..1aab4ac0208 100644
--- a/pkgs/misc/my-env/loadenv.sh
+++ b/pkgs/misc/my-env/loadenv.sh
@@ -11,5 +11,9 @@ export buildInputs
 export NIX_STRIP_DEBUG=0
 export TZ="$OLDTZ"
 
-@shell@
+if test $# -gt 0; then
+    exec "$@"
+else
+    exec @shell@
+fi