From c82a856b36bcd008edeb9c4c981b974ae642afea Mon Sep 17 00:00:00 2001
From: Matthew Bauer <mjbauer95@gmail.com>
Date: Thu, 25 Jul 2019 09:39:44 -0400
Subject: [PATCH] Add default for USER when unset

uses $(id -u -n) when USER is unset, this is needed on some weird
setups in Docker. Fixes #971
---
 scripts/install-nix-from-closure.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/install-nix-from-closure.sh b/scripts/install-nix-from-closure.sh
index fc999d336..35926f3da 100644
--- a/scripts/install-nix-from-closure.sh
+++ b/scripts/install-nix-from-closure.sh
@@ -12,7 +12,7 @@ if ! [ -e "$self/.reginfo" ]; then
     echo "$0: incomplete installer (.reginfo is missing)" >&2
 fi
 
-if [ -z "$USER" ]; then
+if [ -z "$USER" ] && ! USER=$(id -u -n); then
     echo "$0: \$USER is not set" >&2
     exit 1
 fi