From 1472fdf14a3636c3ffb041602711ed2d1bdf217b Mon Sep 17 00:00:00 2001
From: Peter Eisentraut <peter@eisentraut.org>
Date: Fri, 6 Jun 2014 23:09:05 -0400
Subject: [PATCH] Improve response when pex is called without any arguments

---
 pex      |  4 ++++
 t/misc.t | 10 ++++++++++
 2 files changed, 14 insertions(+)
 create mode 100644 t/misc.t

diff --git a/pex b/pex
index 194c4ce..ee73ba2 100755
--- a/pex
+++ b/pex
@@ -910,6 +910,10 @@ psql() {
 }
 
 
+if [ $# -eq 0 ]; then
+	error "usage: pex COMMAND [PACKAGE] (try \" --help\")"
+fi
+
 case $1 in
 	--help|-\?)
 		echo "$usage"; exit 0;;
diff --git a/t/misc.t b/t/misc.t
new file mode 100644
index 0000000..1ddbfd5
--- /dev/null
+++ b/t/misc.t
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+. ./t/libtap.sh
+. ./t/fixtures.sh
+
+plan 1
+
+ok_program 'pex without arguments' 1 'pex: usage: pex COMMAND [PACKAGE] (try " --help")' pex
+
+cleanup