From e94782ae03b38724d7675622d987bbbacbe34b0a Mon Sep 17 00:00:00 2001
From: Mario Rodas <marsam@users.noreply.github.com>
Date: Mon, 22 Jan 2018 00:46:33 -0500
Subject: [PATCH] home-manager: check whether a command is passed

"set -u" treats unset variables as an error, and $1 is unbound when no
command is passed.
---
 home-manager/home-manager | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/home-manager/home-manager b/home-manager/home-manager
index 9d10e61e..7187740b 100644
--- a/home-manager/home-manager
+++ b/home-manager/home-manager
@@ -337,6 +337,11 @@ done
 # Get rid of the options.
 shift "$((OPTIND-1))"
 
+if [ $# -eq 0 ]; then
+    doHelp >&2
+    exit 1
+fi
+
 cmd="$1"
 shift 1