From ce0266831fc039433f9568a2e725b131253dc583 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Maxime=20H=C3=A9lias?= <maximehelias16@gmail.com>
Date: Fri, 19 Jan 2018 22:58:28 +0100
Subject: [PATCH] Fix the env variable to set when it does not exist

---
 lib/functions.zsh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/functions.zsh b/lib/functions.zsh
index f3065378..67a776d9 100644
--- a/lib/functions.zsh
+++ b/lib/functions.zsh
@@ -95,8 +95,8 @@ function default() {
 #    0 if the env variable exists, 3 if it was set
 #
 function env_default() {
-    env | grep -q "^$1=" && return 0
-    export "$1=$2"       && return 3
+    [[ -z "$1" && ${env | grep -q "^$1="} ]] && return 0
+    export "$1=$2"                           && return 3
 }