From c39a0a4a0fa836e748afc471d052b9736fcd6b99 Mon Sep 17 00:00:00 2001
From: Mazen Harake <mazen.harake@gmail.com>
Date: Tue, 19 Jul 2016 12:07:34 +0200
Subject: Fix Issue #22

Exit script if $HOME variable is empty or not set.
---
 kerl | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/kerl b/kerl
index e5f6c76..70b5d7b 100755
--- a/kerl
+++ b/kerl
@@ -29,6 +29,11 @@ GREP_OPTIONS=''
 
 ERLANG_DOWNLOAD_URL="http://www.erlang.org/download"
 
+if [ -z "$HOME" ]; then
+    echo "Error: \$HOME is empty or not set." 1>&2
+    exit 1
+fi
+
 # Default values
 : ${OTP_GITHUB_URL:="https://github.com/erlang/otp"}
 : ${KERL_BASE_DIR:="$HOME"/.kerl}
-- 
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